Users Manual
TRIGNO Wireless System
User’s Guide
September 2012 Edition
PM-W01
Copyright © 2012 by Delsys Incorporated
Specifications and procedures outlined in
this document are subject to change
without notice.
Delsys Logo, EMGworks, and Myomonitor
are Registered Trademarks of Delsys
Incorporated.
MAN-012-2-4
TM
Table of Contents
Table of Contents ....................................................................... 3
Important Information ................................................................. 5
Intended Use........................................................................ 5
Contraindications ................................................................. 5
Technical Service and Support ............................................ 5
Warnings and Precautions................................................... 6
Device Information ............................................................... 7
Disclaimer ............................................................................ 9
Limited Warranty.................................................................. 9
System Requirements.......................................................... 9
TrignoTM Wireless EMG System Overview ............................. 10
Wireless EMG Sensor........................................................ 10
Sensor LED Indicator Status ....................................... 11
Base Station....................................................................... 11
Power Supply..................................................................... 12
Getting Started with the TrignoTM System............................... 13
Software Installation........................................................... 13
Powering the Base Station................................................. 13
Connecting the Base Station ............................................. 13
Charging the Sensors ........................................................ 14
Acquiring Data in EMGworks Acquisition........................... 15
Sampling the Analog Outputs ............................................ 15
Digital Outputs (Trigno SDK) ............................................. 15
Using the Wireless EMG Sensors ............................................ 16
Orienting the EMG Sensors on the Skin ............................ 16
Cleaning the Sensor Site ................................................... 16
Applying the Trigno Adhesive Skin Interfaces ................... 16
Turning the Sensors ON .................................................... 17
Trigno Sensor Status Console ........................................... 17
Turning the Sensors Off..................................................... 18
Using the Analog Outputs......................................................... 19
Analog Output Connectors................................................. 19
Channels 1-16, EMG Signals ...................................... 19
Channels 1-64, all Signals........................................... 19
Screw Terminal Connections....................................... 20
Trigno Control Utility Software ........................................... 21
Installing the Software ................................................. 21
Launching the Software............................................... 21
Configuration Options for Trigno System ................................. 23
Accessing Configuration Options....................................... 23
Trigno System Information................................................. 24
Trigno System Settings...................................................... 25
Mode Control (Analog Output Software Only) ................... 26
Test Panel.......................................................................... 26
Additional Sensor Information .................................................. 28
Sensor Pairing ................................................................... 28
Sensor Factory Calibration ................................................ 29
Smart Sensors ................................................................... 30
Sensor Modes in EMGworks ............................................. 30
Using Tandem Trigno Systems ................................................ 31
Initial Connectivity........................................................ 31
Communication Frequencies....................................... 31
Synchronization ........................................................... 31
User Interface.............................................................. 32
Maintenance and Care ............................................................. 33
Trigno Sensors................................................................... 33
Trigno Base Station ........................................................... 33
Specifications ........................................................................... 35
Trigno Sensors................................................................... 35
Trigno Recharging Base Station ........................................ 37
Appendix I................................................................................. 39
Mains Isolation ................................................................... 39
Appendix II................................................................................ 40
DC-A22 Unterminated Output Cable ................................. 40
Installation.......................................................................... 40
DC-A22 Conductor Assignments ....................................... 41
5
Important Information
Intended Use
The TrignoTM Wireless EMG Systems are battery-powered biofeed-
back devices intended for research, investigational and scholarship
purposes only. Delsys® products are not intended for measurement
purposes or for use in the treatment and diagnosis of disease. Inter-
pretation of the EMG signal by a qualified professional is required.
Rx ONLY
Contraindications
Technical Service and Support
For information and assistance visit our web site at:
www.delsys.com
Contact us at:
E-mail: support@delsys.com
Telephone: (617) 236 0599
DO NOT USE on Patients with implanted electronic devices of any
kind, including cardiac pace-makers or similar assistive devices, elec-
tronic infusion pumps, and implanted stimulators.
DO NOT USE on irritated skin or open wounds.
DO NOT USE on Patients with allergies to Silver.
6 Trigno Wireless System User’s Guide
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Warnings and Precautions
Consult all accompanying documents for precautionary statements
and other important information.
Consult accompanying user’s guide for detailed instructions.
Keep the device dry. The presence of liquids may compromise the
safety features of the device.
Handle with care.
Sensitive electronic device. Avoid static discharges. Do not operate or
store near strong electrostatic, electromagnetic, magnetic or radioactive
fields. Interference from external sources may decrease the signal-to-
noise ratio or result in corrupted data.
Connect only to Delsys-approved devices.
Connecting a patient to high-frequency surgical equipment while
using Delsys EMG systems may result in burns at the site of the EMG
sensor contacts.
Immediately discontinue device use if skin irritation or discomfort
occurs.
Immediately discontinue device use if a change in the device’s perfor-
mance is noted. Contact Delsys technical support for assistance.
Delsys Inc. guarantees the safety, reliability, and performance of the
equipment only if assembly, modifications and repairs are carried out
by authorized technicians; the electrical installation complies with the
appropriate requirements; and the equipment is used in accordance
with the instructions for use.
Device contains a Lithium-Polymer battery. Do not damage, crush,
burn, freeze or otherwise mishandle the device. Recharge only with the
approved power supply and recharger.
Trigno Systems should be stored and operated between 5 and 50
degrees Celsius due to the presence of an internal Lithium Polymer
rechargeable cell. Storing or operating the device, and consequently the
cell, outside of this temperature range may compromise the integrity
and the safety features of the cell.
7
Device Information
Complies with Requirements put forth by the Medical Device Direc-
tive 93/42/EEC. Class I device, Annex VII.
Type BF device (IEC 60601-1)
Isolated device, (Class II, IEC 60601-1)
Do not dispose this product with house waste. Contact Delsys Inc. for
instructions on responsibly disposing this device. This product should
not be mixed with other commercial wastes.
Date of Manufacturing (appears on device)
Serial Number (appears on device)
FCC ID: W4P-SP-W02 (Trigno Base Station)
FCC ID: W4P-SP-W05 (Trigno Sensor)
FCC ID: W4P-SP-W01 (Trigno Sensor)
IC: 8138A-DST01 (Model: Trigno Wireless EMG System)
IC: 8138A-SPW05 (Model: SP-W05)
This device complies with Part 15 of the FCC Rules and Industry Can-
ada’s RSS-210 License Exempt Standards. Operation is subject to the
following two conditions: (1) This device may not cause harmful inter-
ference. and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This product complies with FCC OET Bulletin 65 radiation exposure
limits set forth for an uncontrolled environment.
REPEC
EMERGO EUROPE
Molenstraat 15
2513 BH, The Hague
The Netherlands
DELSYS INC.
650 Beacon St.
Boston MA 02215
USA
Authorized Representative Manufacturer
8 Trigno Wireless System User’s Guide
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Changes not expressly approved by Delsys Inc.could void the User’s
authority to operate the equipment
To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radi-
ated power (EIRP) is not more than that required for successful com-
munication.
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment gen-
erates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. There is no guarantee that interfer-
ence will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encour-
aged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into outlet on a separate circuit.
9
Disclaimer
DELSYS INC. makes no warranties, express or implied, as to the
quality and performance of this product including but not limited
to, any implied warranty of applicability for other than research
uses by qualified individuals. DELSYS INC. shall not be liable to
any person for any medical expenses or any direct or consequential
damages resulting from any defect, failure or malfunction, whether
a claim for such damages is based upon theory of warranty, con-
tract, tort or otherwise. No representative, agent, or licensed practi-
tioner is authorized to waive this disclaimer. DELSYS INC. makes
no diagnosis or prescription by virtue of anything about this prod-
uct.
System Requirements
•EMGworks 4.0.9 or later
•Windows 7, Windows Vista or Windows XP with service pack
3. 64-bit or 32-bit operating systems supported. Windows 7 is
recommended for optimal performance.
•One USB 2.0 port
•At least 2.0 GHz processor clock speed
•At least 2 GB system memory
•1280x1024 (SXGA) display resolution or better
•1 GB hard disk storage (minimum)
•Users of Windows 7 and Vista can simply ensure that they have
a Windows Experience Index of 4.0 or greater.
10 Trigno Wireless System User’s Guide
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TrignoTM Wireless EMG System Overview
The TrignoTM Wireless EMG System is a high-performing device
unparalleled in its sophistication, its reliability and its ease-of-use.
Each EMG sensor has a built-in triaxial accelerometer, a
guaranteed transmission range of 40 m and a rechargeable battery
lasting a minimum of 7 hours. The system is capable of streaming
data to EMGworks Acquisition and Analysis software, and of
generating 16 EMG and 48 accelerometer analog channels for
integration with motion capture and other 3rd party data
acquisition systems. Full triggering features further expand the
possibility for integration with additional measurement
technologies.
Wireless EMG Sensor
Each Trigno Sensor is equipped with the following features:
•transmission range of 40m
•inter-sensor latency < 500us (< 1 sample period)
•self-contained rechargeable battery
•EMG signal bandwidth 20- 450 Hz
•EMG signal sampling rate up to 4000 samples/sec
•EMG baseline noise of <750 nV RMS
•CMRR > 80dB
•16-bit EMG signal resolution
•integrated triaxial accelerometer
•software selectable accelerometer sensitivity of ± 1.5g or ±6g
•LED User feedback
•battery charge monitoring and status indicator
•environmentally sealed device
•proven parallel bar electrode technology
•contoured sensor-skin interface for maximum signal stability
•auto shutoff
Figure 1. Trigno wireless 4-channel sensor.
Inertial Sensing Axes EMG Electrodes
11
Sensor LED Indicator Status
Base Station
Figure 2. Trigno Base Station.
Each Base Station is equipped with the following features:
•recharging cradle for 16 sensors
•high speed USB communication with PC
•64-channel analog output connector (16 EMG, 48 ACC)
•± 5V analog output range
•detachable antenna
•full trigger capability (Start/Stop, Input/Output)
•communication & power feedback LEDs
•convenient carry case design
Status LED Behavior LED
Data Streaming Flashing green, 1 Hz
Scanning Alternating green/amber flash, 1Hz
Pairing Successful Rapid green flashing, 3x, button depressed
Pairing Unsuccessful Rapid red flashing, 3x, button depressed
Mode Switch Rapid green flashing, 3x
Firmware Update Rapid green flashing, 3x
Battery Charging Solid amber, in cradle
Charging Complete Solid green, in cradle
Charging Error LED off, sensor in cradle, cradle powered up
Sensor Off LED off
1Wireless Sensor 5Analog Output Connectors
2Base Station 6Trigger Port
3USB Port 7Antenna
4Power Jack/Power Supply 8EMGworks Software
12
6
4
7
5
3
12 Trigno Wireless System User’s Guide
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Power Supply
Trigno Systems are equipped with an isolated medical grade power
supply. The green power LED on the base station will illuminate
when power is connected to the Base Station. The power supply is
provided with interchangeable country-specific plug adapters. The
power supply can be conveniently stored in the Base Station storage
space when the system is not in use.
Figure 3. Trigno SC-P05 International Medical Power Supply with plug
adapter kit.
Trigno System are specifically designed and approved to
function only with the Power Supply provided. Power Supply
substitutions constitute a violation of the medical safety
approvals and will void the warranty.
If using a mains-powered PC then an additional isolation
transformer is required for medical compliance to IEC60601-1.
Refer to Appendix I for further details. No PC isolation is
required for operation on a battery-powered laptop.
13
Getting Started with the TrignoTM System
Software Installation
The Trigno EMG system is controlled by a PC through the USB
port, and thus requires specialized software. Trigno Systems
include a Delsys Software DVD containing EMGworks Signal
Acquisition and Analysis Software and the Trigno Control Utility
software for use with 3rd party data acquisition systems.
Install EMGworks from the Delsys Software DVD prior to
connecting the Trigno Base Station to the computer.
Powering the Base Station
Connect the Trigno power supply to the circular DC jack located
on the side of the Base Station. Energize the power supply by con-
necting it to a Mains outlet or to an isolation transformer. Ensure
that the PC to be used with the Base Station is connected to the
same isolation transformer. Please refer to Appendix I for clarifica-
tion on using an Isolation Transformer. The power LED on the
Base Station will illuminate anytime power is applied. Ensure that
the Base Station antenna is securely attached to the antenna con-
nector.
Figure 4. Connecting the Trigno Base Station power supply.
Connecting the Base Station
It is important to install EMGworks software prior to connecting
the Base Station to the PC. If not, the “Found New Hardware”
dialog will appear and Windows will prompt for a driver location.
Cancel this dialog and install EMGworks from the Delsys DVD in
order to register the Trigno drivers with the operating system.
14 Trigno Wireless System User’s Guide
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Once the software is correctly installed, the PC will automatically
detect the Trigno Base Station when connected to the USB port.
Charging the Sensors
Before using the system, the sensors should be fully charged by
placing them in the Base Station cradle slots. Ensure the Base Sta-
tion is powered and that the green power LED is illuminated.
When charging, the sensor LEDs will illuminate to an amber color.
Once the sensor battery is fully charged the sensor LED will turn
green. A complete charge cycle from a fully depleted sensor takes
approximately 2.5 hours.
Do not force the sensors into the recharging cradles of the Base
Station. The sensors are keyed so that they can only be inserted
in one orientation. Check the sensor orientation and check for
obstructions in the cradle if physical resistance is met while
cradling the sensors.
Recharge only with the approved power supply (SC-P05)
originally included with the system. Charging with any other
power supply may damage the device and will void the
warranty.
Figure 5. Sensor LED feedback for battery charging status.
Charging Charge
Complete
15
Acquiring Data in EMGworks Acquisition
Refer to the “Acquiring and Plotting Data” video tutorial
(provided on the DVD) for a brief introduction to configuring the
EMGworks software with the Trigno system. This and additional
EMGworks tutorials can be found on our website.
Refer to the EMGworks documentation (accessible in the Help
menu of the software) for detailed instructions on setting up data
collection in EMGworks.
Whenever data are collected in EMGworks, the analog outputs on
the base station are also active, so it is possible to collect data in
EMGworks and in a secondary data acquisition system
simultaneously.
Sampling the Analog Outputs
If samplig the analog output signals from the Trigno System using
a 3rd party data acquisition system, refer to the “Using the Analog
Outputs” section of this guide.
Digital Outputs (Trigno SDK)
The Trigno SDK presents digital outputs that can be read into sev-
eral common data collection platforms. Please refer to our online
help for more information.
16 Trigno Wireless System User’s Guide
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Using the Wireless EMG Sensors
Orienting the EMG Sensors on the Skin
Trigno EMG Sensors employ 4 silver bar contacts for detecting the
EMG signal at the skin surface. It is crucial that the orientation of
these bars be perpendicular to the muscle fibers for maximum
signal detection. The top of the sensor is shaped with an arrow to
aid in the determination of this orientation. The arrow should be
placed parallel to the muscle fibers underneath the sensor. The
sensor should also be placed in the center of the muscle belly away
from tendons and the edge of the muscle. The sensor is easily
attached to the skin using the Delsys Adhesive Sensor Interface.
Figure 6. EMG Sensors must be properly oriented with the muscle fibers. Align
the sensor’s arrow with the direction of the underlying muscle fibers.
Cleaning the Sensor Site
Prior to affixing the EMG sensor on the surface of the skin, the
sensor site must be properly cleaned to remove dry dermis and any
skin oils. Wiping the skin prior to sensor application is critical. If
excessive hair is present, it will also be necessary to shave the site.
In cases where the skin is excessively dry, it may be useful to
dislodge dry skin cells by dabbing the site with medical tape. The
dry cells will attach the tape’s adhesive when it is removed. Be sure
to wipe with isopropyl alcohol to remove any adhesive residue that
may remain.
Applying the Trigno Adhesive Skin Interfaces
Trigno System are supplied with specially-designed adhesive
interfaces to simplify sensor attachment. These hypo-allergenic
interfaces are manufactured from medical grade adhesive approved
for dermatological applications. Usage of the interface promotes a
high quality electrical connection between the sensor bars and the
muscle-fiber direction
17
skin, minimizing motion artifacts and the ill-effects of line
interference. To ensure a strong bond with the skin, it is advised to
remove excessive hair and wipe the skin area and the EMG Sensor
with isopropyl alcohol to remove oils and surface residues. Allow
the skin to dry completely before applying the interfaces.
Adhesive Sensor Interfaces are for single use only.
Immediately discontinue use if skin irritation or discomfort
occurs. All Adhesive Sensor Interfaces and Reference Electrodes
are for single use only. Discard after using. Reseal storage bag
to maintain freshness.
Turning the Sensors ON
Trigno Sensors are turned on by depressing the rubber button for
approximately one second. The green LED on the sensor will
immediately begin to flash, and begin searching for a Base Station
that has been properly paired and is within its range. If no Base
Station is found, the LED will alternate between amber and green,
indicating that it does not have an established communication link.
As soon a link is established with the Base Station, the sensor LED
will flash green approximately once per second, indicating that data
are streaming.
Figure 7. Turning the Trigno Sensor “ON”.
Trigno Sensor Status Console
A Status console for Trigno Sensors is available when operating
EMGworks and when using the Trigno Control Utility. The
console tracks all Trigno sensors in the system in real-time, relaying
their on/off state, their battery charge level and their
communication quality in the network. Additionally, this console
18 Trigno Wireless System User’s Guide
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hosts the sensor pairing function and can send an “off” command
to all sensors.
A compact display of this information is accessible in EMGworks
by hovering over the notification area icon for the Trigno
hardware. The full dialog is displayed by double-slicking this icon.
Figure 8. The Trigno Sensor Status Console offers real-time sensor feedback.
A) data acquisition status, B) battery charge state, C) sensor number, D) sensor
power, E) wireless signal strength, F) sensor pairing, G) off command.
Turning the Sensors Off
There are several mechanisms for turning the Trigno sensors off,
described as follows:
•Send an “off” command via software
•Dock the sensor in an active charge cradle
•Hold sensor button for approximately 20 seconds
•5 minute time-out if sensor is not communicating with base
station
19
Using the Analog Outputs
The Trigno System provides simultaneous analog signal
reconstruction of data being detected by all active sensors. These
signals are made available on the 68-pin connectors located on the
Base Station. EMG signals at these outputs are amplified by a
factor of 909, with full dynamic range of ±5V. Similarly
accelerometer signals are presented with a nominal full range of
±5V. These must be calibrated according to their selected
operational range (±1.5g, ±6g). Note that the EMG and
accelerometer signals exhibit fixed 48 and 96ms delays respectively,
from the time the sensor detects the event to the time the analog
signal is reproduced.
Figure 9. Analog output connectors.
Analog Output Connectors
Channels 1-16, EMG Signals
The pinout of this connector replicates the pinout of the Bagnoli
desktop EMG systems to facilitate connectivity between shared
equipment. Only EMG signals are provided on this connector.
Note that this pinout is also compatible to that of National
Instruments data acquisition modules.
Channels 1-64, all Signals
This connector makes available all 64 analog output channels in
the 68-pin connector. This connector is compatible with some 80-
channel data acquisition modules from National Instruments.
20 Trigno Wireless System User’s Guide
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Figure 10. Pinouts of the analog output connectors.
Screw Terminal Connections
Many data acquisition systems are equipped with screw-type wire
terminations. In these cases Delsys can supply a cable assembly that
mates with the analog output connectors and breaks out the
individual channels onto single conductors. Please contact Delsys
for details regarding this particular wire assembly or other
connectivity needs. Please refer to Appendix II for further details
regarding the DC-A22 Unterminated Output Cable.
Figure 11. DC-A22 Unterminated Output Cable.
21
Trigno Control Utility Software
The Trigno Control Utility software operates on a PC
independently from EMGworks Data Acquisition and Analysis
software. The Trigno Control Utility is designed to configure and
control the Trigno System so that it becomes a full analog
instrument. In this scenario, all data acquisition is performed by
sampling the analog channels with 3rd party acquisition systems,
often used with Motion Capture Systems.
Additionally, the Trigno Control Utility serves to provide digital
samples if using the Trigno SDK.
Installing the Software
The Trigno Control Utility software is included on the Delsys
Software DVD. Installing EMGworks will also install the Trigno
Control Utility software.
The Trigno Control Utility software can also be obtained by
downloading the EMGworks installer from the Delsys web site at:
http://www.delsys.com/Products/EMGworks.html
There is no license required to use the Trigno Control Utility.
The system requirements for the Trigno Control Utility software is
the same as EMGworks, detailed in the EMGworks User’s Guide:
http://www.delsys.com/KnowledgeCenter/NetHelp
Launching the Software
When installed, the Trigno Control Utility software may be
launched from the Start menu under “Delsys, Inc.” To create a
desktop shortcut to the Trigno Control Utility, navigate to the
program in the Start menu, right click the icon, and select “Send
To --> Desktop (create shortcut)”.
The Trigno Control Utility application must remain running on
the PC for the analog outputs to remain active.
The wireless sensor configuration window is accessible from the
“configure” button. “Start” and “Stop” controls activate and
deactivate the analog outputs, and define the Start and Stop output
trigger events. All settings are locked once the “Start” button is
depressed, and can only be changed after the “Stop” button is
pressed
22 Trigno Wireless System User’s Guide
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Figure 12. Trigno Control Utility software.
Figure 13. Trigno Control Utility software with active outputs
23
Configuration Options for Trigno System
Accessing Configuration Options
When editing a configuration in EMGworks, the hardware options
for the base station can be set in the Hardware node of the
Configuration Tree when the Trigno Wireless System is selected as
the primary A/D device.
Figure 14. Selecting the Trigno system as the primary A/D device in the
Hardware node of the Configuration Tree in EMGworks.
When using the Trigno Control Utility, these options can be set by
clicking the Configure button.
Figure 15. Configure button in Trigno Control Utility
24 Trigno Wireless System User’s Guide
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Trigno System Information
The Information tab presents information pertaining to the system
and its settings.
Figure 16. Trigno Wireless System information. If multiple bases are
connected, the settings for each base are shown on a separate, top level tab.
Transmission Frequencies
Wireless communication occurs on varieties of
frequencies throughout the acceptable 2.4 GHz
spectrum. Four frequency sets are available (“A”, “B”, “C”
and “D”). The current frequency set is shown here.
Firmware Version
Delsys may occasionally release firmware upgrades to
improve and evolve the functionality of Trigno Systems.
The current firmware version is shown here.
Serial Number
Each Trigno Base Station has a unique serial number and
identifier address which is shown here.
Network Size
Indicates the number of sensors supported by this base.
Launch Test Panel
Places the Trigno Base Station in a test mode to assist
with verification of analog output signal connections.
Each of the 64 analog output channels is configured to
25
produce a unique sinusoid which can be verified by
properly sampling these channels with secondary
acquisition system.
Refresh
This button refreshes the status information.
Copy
Copies the data the in the Information tab to the
clipboard.
Trigno System Settings
The Settings tab allows several system parameters to be modified as
needed.
Figure 17. Configuring Trigno Sensor Settings
Frequency Set
Use this setting to change the frequencies being used for
wireless communication. The default set is “A”. The
frequency set should only be changed if nearby sources
are interfering with Trigno communications or the
particular operating environment is causing significant
path loss on the current frequency set. Note that
changing the communication frequency set will require
sensor re-pairing. Frequencies within the sets are defined
by the system and cannot be changed by the User.
26 Trigno Wireless System User’s Guide
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Audible Warnings
This option will generate an audible “ping” along with a
small message, whenever a sensor falls out of range or it’s
battery is excessively low.
Mode Control (Analog Output Software Only)
In the Analog Output application, the sensor mode is controlled
on the Mode Control tab of the Configuration dialog.
Information on mode control is available through our EMGworks
online help:
http://www.delsys.com/Products/EMGworks.html
Test Panel
The Test Panel is used to verify the analog signal connections with
the data acquisition module by outputting predefined and unique
signals on each channel. The test signals are sinusoidal in nature
and defined by an amplitude, a frequency and an offset. The
27
expected outputs for each analog channels are listed in the Test
Panel window once the option is slected.
Figure 18. The Test Panel Signals.
28 Trigno Wireless System User’s Guide
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Additional Sensor Information
Sensor Pairing
Trigno sensors communicate with a custom wireless protocol that
links each sensor to a unique Base Station. This linking process is
known as sensor “pairing”, and is initiated through the “Pair”
command.
Trigno systems are shipped with all sensors appropriately paired.
Sensor pairing is typically needed if sensors are being replaced
within the network group, when the communication frequency
sets are changed, and after a firmware upgrade is performed.
1. Initiate sensor pairing in software.
When using EMGworks, initiate pairing by right-clicking
the Trigno hardware icon in the system notification area,
and selecting the appropriate menu item.
Figure 19. Location of the Trigno hardware icon in the system notification
area, and the pairing menu item.
When using Trigno Control Utility, click the “Pair”
button on the Sensor Status Console.
Figure 20. Pair button in the Sensor Status Console.
29
2. Complete the pairing process by depressing the desired sensor
button for a minimum of 3 seconds. Successful pairing will
result in 3 green LED flashes on the sensor, and a confirma-
tional message in the software.
Figure 21. Complete the process by depressing the sensor button for 3 sec.
Sensor Factory Calibration
The Trigno system stores calibration information for sensors which
have been paired with it. When collecting data with EMGworks,
this calibration information is used to accurately display measured
values, in many cases without the need for a user-initiated manual
calibration.
After a pairing operation is completed, the system automatically
searches for pre-existing factory calibration data on the particular
sensor. If the sensor has never been paired with the system (for
example, in the case of a new additional sensor), the software will
prompt the user to enter factory calibration data, which can be
obtained from Delsys. Factory calibration data are a string of
numbers and letters which encode the calibration values for a
specific sensor. Factory calibrations are specific to a single sensor
and will not be accepted by the software for use on another sensor.
At any time a nominal, “default” calibration may be selected for a
sensor, or the specific factory calibration may be re-entered. This
feature is accessed by re-pairing the sensor.
Figure 22. Factory Calibration Prompt. The calibration can be either auto-
detected, or entered manually if the sensor is being paired for the first time.
30 Trigno Wireless System User’s Guide
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Smart Sensors
After pairing, the association of sensors to the base station is
retained for all future uses. Any configuration in EMGworks can
be made to reflect the last paired set of sensors by clicking the
“Refresh Smart Sensors” button in the “Add Sensors” pane in
EMGworks. When data collection starts, the software will verify
that the sensors currently communicating match those used in the
configuration. If there is a mismatch, cancel the recording and re-
pair the sensors.
Figure 23. Refresh Smart Sensors button.
Sensor Modes in EMGworks
Each Trigno sensor can operate in one of 4 possible data collection
modes, which determines the type of data being collected. When
using EMGworks, the sensor mode can be set on the sensor
settings pane for each sensor. Note that the number of modes
available is determined by the Trigno sensor type.
Figure 24. Setting sensor modes in EMGworks.
31
Using Tandem Trigno Systems
Two Trigno systems may be used in tandem, connected to the
same computer as a synchronized 32 sensor, 128 channel system.
Initial Connectivity
To use two Trigno systems in a tandem configuration, connect the
USB cable from each base station to the same computer. If using
EMGworks, also connect the Trigger Cross-Over Cable (DC-C02)
between the trigger ports on the two base stations. After connect-
ing the USB cables and powering each base station, launch either
the Trigno Control Utility application or EMGworks. Note that
the trigger cross-over cable will work irrespective of orientation.
Figure 25. Installation of the Trigger Cross-Over cable to synchronize two base
stations when used with EMGworks.
Communication Frequencies
When the software detects the presence of two bases connected to
the computer, the frequency sets on each base are automatically
changed to allow the simultaneous communication of 32 sensors.
The user is required to re-pair each sensor to use these new
communication frequencies. Similarly, when reverting to the use of
a single base, the communication frequency set will be restored to
the option selected by the user (Set A, B, C, or D) and the sensors
must again be re-paired.
Synchronization
All channels of data collected in a tandem configuration are fully
synchronized between the two bases.
32 Trigno Wireless System User’s Guide
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User Interface
User interface options are expanded to reflect the presence of
additional sensors.
Figure 26. The Status Console when tandem bases are used.
33
Maintenance and Care
Trigno Sensors
Trigno sensor are encased in a sealed polycarbonate enclosure. The
following points should be kept in mind when handling the
sensors.
•All sensors should be visually inspected before each use to
ensure that no mechanical deterioration has occurred.
•The sensors can be cleaned and sterilized with a damp cloth and
mild detergent, or with 70% isopropyl alcohol swabs. Ensure
that the sensor contacts remain clean at all times for proper
operation.
•While the sensors are sealed and are water-resistant, these
should never be completely submerged in any liquid. They are
design to be used on damp skin surfaces and in the presence of
sweat without compromise to safety, sensor integrity or opera-
tion.
•The sensor contacts are made of pure silver and are quite soft.
Care should be taken to preserve the integrity of these contacts.
Do not scrape or dent these contacts.
•Handle the sensors with care: do not drop them on the ground
or step on them.
Do not submerge the sensors in any liquid under any
circumstance.
The sensors contain sensitive electronic circuitry. Static
discharges and intense magnetic fields should be avoided to
prevent the risk of irreparable damage to the sensors.
Trigno Base Station
The Trigno System is designed to provide years of reliable service
when proper care is followed. While the Base Station enclosure is
made of durable plastic, the following points should be kept in
mind during its use and handling:
•The device and its accessories should be visually inspected
before every use to ensure that no mechanical deterioration has
occurred.
•The Base Station can be easily cleaned with a 70% solution of
isopropyl alcohol if necessary. DO NOT EXPOSE THE BASE
STATION TO ANY LIQUID. IT IS NOT A SEALED
DEVICE.
34 Trigno Wireless System User’s Guide
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•The units are not shockproof and should not be dropped or be
subjected to excessive forces or accelerations.
The recharging Base Station is not water-resistant. Under no
circumstance should this unit be exposed to water or any other
type of liquids.
35
Specifications
Trigno Sensors
(1) Range is characterized in open office environments. Interfering RF sources in the 2.4GHz
spectrum, as well as absorptive objects occluding the RF communication path may degrade
transmission distance. Stated range can be exceeded under favorable RF conditions.
(2) Battery duration is a function of charge and discharge conditions. Optimal battery
performance is obtained when the device is operated at room temperature. Note that the
stated Operation Time reflects the expected performance of a fully charged new battery used
in a sensor that is transmitting data. Operation Time is expected to decrease as a function of
charge cycles, and when the sensor is searching for a network.
(3) 80% of original battery capacity is maintained after 300 discharge/recharge cycles or after 2
years if recharge cycles are less than 300. These values represent typical expectations
under normal conditions. Actual performance will vary depending on usage conditions.
(4) Operation beyond these temperature limits may damage the rechargeable battery.
GENERAL SPECIFICATIONS
Typical Operating Range(1) 40 m
RF Frequency Band 2400-2480 MHz (ISM band)
Power Consumption <65 mW
Case Dimension 27 x 37 x 15 mm
Full-charge Operation Time(2) 8 hours
Recharge Time(3) <2.5 hours
Mass < 15g
Auto Shut-down timer 300 seconds
Temperature Range(4) 5 - 50 degrees Celsius
EMG SENSOR SPECIFICATIONS
Range(1) 11 mV (r.t.i.)
Resolution (EMG Signal)(2) 168 nV/bit
Bandwidth (EMG Signal)(3) 20±5 Hz, >40 dB/dec
450±50 Hz, >80 dB/dec
Passband Ripple(3) <2%
Overall Channel Noise(4) <0.75uV
CMRR(5) >80 dB
Sampling Rate(6) 2000 samples/sec
4000 samples/sec
Number of Contacts 4
36 Trigno Wireless System User’s Guide
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(1) Range is specified for the input of the EMG sensor and is samples with 16 bits
(2) ADC Resolution is specified for the input of the sensor.
(3) Filter is designed as a maximally flat Butterworth to preserve EMG signal amplitude and
phase linearity.
(4) Input-referred noise is calculated as a root mean square over a 5 second window sampled at
2kHz.
(5) CMRR is measured for a minimum 200 mV common mode input signal at a frequency of
60Hz.
(6) EMG signal sampling rates are intrinsic to the sensor and cannot be changed beyond the two
stated rates, which are software selectable.
(7) Sensor skin contacts are made from pure silver and should not be used if allergic reactions to
silver are expected or found to occur.
(1) Accelerometer range is software selectable.
(2) Resolution is calculated with 8 bits over the full 3.3V dynamic range, encompassing
accelerometer ideal maximum outputs of ±2.1g and ±8.0g. Ratings exceeding the nominal
range of ±1.5g and ±6 g may be non linear and are not guaranteed
(3) Calculated over a 50 Hz bandwidth and range setting of ±1.5g.
(4) Offset errors can nulled in software by using a calibration routine that references the normal
gravitation force.
(5) Accelerometer sampling rates are intrinsic to the sensor and cannot be changed beyond the
two stated rates, which are software selectable.
Contact Dimension 5 x 1 mm.
Contact Material(7) 99.9% Silver
ACCELEROMETER SPECIFICATIONS
Number of Axis 3 DOF
Range(1,2) ±1.5g
±6g
Sampling Resolution(2) 0.016 ± 0.001 g/bit (at ±1.5g)
0.063 ± 0.005 g/bit (at ±6g)
Accelerometer Noise(3) 0.0025g (rms)
Bandwidth DC - 50±5 Hz, 20dB/dec
Offset Error(4) ±0.21g (XY)
+0.21g / -0.42g (Z)
Sampling Rate(5) 148.1 / 296.3 samples sec
EMG SENSOR SPECIFICATIONS
37
Trigno Recharging Base Station
(1) Range is characterized in normal office environments. Interfering RF sources in the 2.4GHz
spectrum, as well as absorptive objects occluding the RF communication path may degrade
transmission distance. Stated range can be exceeded under favorable RF conditions.
(2) All data packets are guaranteed to by synchronized within the established sensor network.
(1) Delay from sensor event to analog output is fixed for all channels, and referenced as a
"group delay". In the case of EMG channels, this delays consists of the following elements: a)
Sensor Filter (1.5 ms), b) Digitization Delay (41 ms), c) SinX/X Correction (2 ms), and d)
Analog Low Pass Filtering (3.5 ms).
(2) This parameter relates the detected voltage input at the sensor to the reproduced voltage at
the EMG channel output.
(3) Sin(X)/X correction is applied to each channel for cancelling the distorting effects of the DAC
sampling process.
GENERAL SPECIFICATIONS
Typical Operating Range(1) 40 m
RF Frequency Band 2400-2480 MHz (ISM)
Power Consumption <6 W (operation)
<14W (during recharge)
Sensor Recharge Time < 2.5 hours
USB type USB 2.0 compliant, high speed
Temperature Range 5 - 50 degrees Celsius
Maximum number of Sensors 16
Inter-sensor delay(2) 0 seconds
Dimensions 276 x 241 x 127 mm
EMG ANALOG OUTPUT SPECIFICATIONS
Number of outputs 16
Signal group delay(1) 48 ms
EMG Signal Range ±5 V
Effective EMG Signal Gain(2) 909 V/V ±5%
Channel Offset (r.t.o.) ±100 mV (max)
Baseline Noise <0.5mV RMS
DAC Filter Bandwidth DC-500 Hz, 160 dB/Dec.
Passband Ripple(3) <2% with Sin(X)/X correction
Connector Type SCSI-68, Type II
38 Trigno Wireless System User’s Guide
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(1) Delay from sensor event to analog output is fixed for all channels, and referenced as a
"group delay". In the case of Accelerometer channels, this delays consists of the following
elements: a) Acc Filter (2 ms), b) Digitization Delay (41 ms), c) SinX/X Correction (27 ms),
and d) Analog Low Pass Filtering (26 ms).
(2) This parameter relates the nominal uncalibrated voltage differential for an inertial
displacement of 1 g.
(3) Sin(X)/X correction is applied to each channel for cancelling the distorting effects of the DAC
sampling process.
ACCELEROMTER ANALOG OUTPUT SPECIFICATIONS
Number of outputs
16 X Axis
16 Y Axis
16 Z Axis
Signal group delay(1) 96 ms
Accelerometer Output Signal Range ±5 V
Nominal Accelerometer Signal
Gain(2)
2.424 V/g ±5% (±1.5g range)
0.624 V/g ±5% (±6g range)
Channel Offset ±100 mV (max)
Baseline Noise 0.5mV RMS
DAC Filter Bandwidth DC-50 Hz, 160 dB/Dec
Passband Ripple(3) <2% with Sin(X)/X correction
Connector Type SCSI-68, Type II
39
Appendix I
Mains Isolation
The Trigno Base Station is provided with Medical Grade isolated
power supply which is compliant with IEC60601 series of
harmonized standards for Medical Devices. However, full
compliance with IEC60601-1 Basic Safety for Medical Devices
requires that the PC operating the software be isolated as well. This
stems from the basic requirement to have all patients electrically
isolated from equipment within their reach, and since the PC
running the Trigno Software is conceivably within their reach, it
too must be isolated.
Delsys does not supply isolation transformers for Personal
Computers and their peripherals.
Delsys recommends model IS1000HG manufactured by Tripp
Lite (www.tripplite.com) for this task. This device is a medial
grade isolation transformer capable of delivering up to 1000 W.
A smaller similar version for 500W is also available (IS500HG).
Similar products compliant with IEC60601-1 are acceptable.
40 Trigno Wireless System User’s Guide
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Appendix II
DC-A22 Unterminated Output Cable
The DC-A22 Unterminated Output Cable provides access to all
64 analog output channels from the Trigno System on discrete
wires for data acquisition systems with screw-type terminations.
The DC-A22 cable connects directly to the output connector
labeled "1-64"on the Trigno System and terminates in 67 signal
conductors with pre-stripped ends (64 analog output signals and 3
GND conductors).
Each conductor employs a unique color scheme to identify its
signal. The conductor jacket is the primary color, and it is marked
with a secondary color. An example of the coloring scheme is
shown in Figure 27 below.
Figure 27. Wire color scheme example.
Installation
Refer to Figure 28 for installing the DC-A22 cable. Please observe
the following points:
•Connect the GND wires to the data acquisition system ground
for analog inputs. It is recommended to twist all three wires
together and connect these to a common ground point on the
measurement system to avoide the risk of creating ground
loops.
•Ensure that any unused conductors are not exposed and will
not come into contact with each other or any other signal or
voltage potential. This can be done by clipping the bare ends
of the conductors or using heat shrink tubing or electrical tape
to enclose the bare ends.
White / Black Black / White
41
DC-A22 Conductor Assignments
Figure 28. DC-A22 Conductor Assignments
Trigno
Output Trigno
Pin Conductor Color
Primary / Secondary Trigno
Output Trigno
Pin Conductor Color
Primary / Secondary
EMG 1 68 Violet / Orange AY 9 16 Tan / Violet
AX 1 67 Blue / Orange AZ 9 17 Tan / Gray
AY 1 33 Orange / Blue EMG 10 49 Blue / Tan
AZ 1 34 Orange / Violet AX 10 48 Green / Tan
EMG 2 66 Green / Orange AY 10 14 Tan / Green
AX 2 65 Yellow / Orange AZ 10 15 Tan / Blue
AY 2 31 Orange / Yellow EMG 11 47 Yellow / Tan
AZ 2 32 Orange / Green AX 11 46 Orange / Tan
EMG 3 64 Gray / Pink AY 11 12 Tan / Orange
AX 3 63 Violet / Pink AZ 11 13 Tan / Yellow
AY 3 29 Pink / Violet EMG 12 45 Pink / Tan
AZ 3 30 Pink / Gray AX 12 44 Brown / Tan
EMG 4 62 Blue / Pink AY 12 10 Tan / Brown
AX 4 61 Green / Pink AZ 12 11 Tan / Pink
AY 4 27 Pink / Green EMG 13 42 Violet / White
AZ 4 28 Pink / Blue AX 13 41 Blue / White
EMG 5 60 Yellow / Pink AY 13 7 White / Blue
AX 5 59 Orange / Pink AZ 13 8 White / Violet
AY 5 25 Pink / Orange EMG 14 40 Green / White
AZ 5 26 Pink / Yellow AX 14 39 Yellow / White
EMG 6 58 Gray / Brown AY 14 5 White / Yellow
AX 6 57 Violet / Brown AZ 14 6 White / Green
AY 6 23 Brown / Violet EMG 15 38 Orange / White
AZ 6 24 Brown / Gray AX 15 37 Pink / White
EMG 7 55 Green / Brown AY 15 3 White / Pink
AX 7 54 Yellow / Brown AZ 15 4 White / Orange
AY 7 20 Brown / Yellow EMG 16 36 Brown / White
AZ 7 21 Brown / Green AX 16 35 Tan / White
EMG 8 53 Orange / Brown AY 16 1 White / Tan
AX 8 52 Pink / Brown AZ 16 2 White / Brown
AY 8 18 Brown / Pink GND 9White / Gray
AZ 8 19 Brown / Orange GND 22 Brown / Blue
EMG 9 51 Gray / Tan GND 43 Gray / White
AX 9 50 Violet / Tan NC 56 Blue / Brown
42 Trigno Wireless System User’s Guide
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