PCB Piezotronics IMI670A01 Wireless Vibration Sensor User Manual Echo Wireless Vibration Sensor Manual 2011 06 29

PCB Piezotronics, Inc. Wireless Vibration Sensor Echo Wireless Vibration Sensor Manual 2011 06 29

Contents

User's Manual

Page 1 of 14
Echo
®
Wireless Vibration Sensor
Installation and Operation Manual
Page 2 of 14
Table of Contents
Introduction......................................................................................................................... 4
Proper Handling.................................................................................................................. 4
The Magnet Switch and LED Status Indicator ................................................................... 4
LED Status Messages.................................................................................................... 5
Programming the Echo
®
Wireless Sensor........................................................................... 6
Attaching the Programming Cable ............................................................................. 6
Connecting to the Sensor with the Echo
®
Data Server Software ............................. 6
Reading the Current Programmed Parameters......................................................... 8
Explanation of Echo
®
Wireless Sensor Parameters................................................... 9
Saving Changes to the Echo
®
Sensor .......................................................................... 9
Updating the Database to Match Sensor Programming ......................................... 10
The RV (Raw Vibration) Option ...................................................................................... 11
Mounting........................................................................................................................... 13
Outline Drawing.......................................................................................................... 13
Spot Face Tool............................................................................................................. 13
Replacing the Battery Pack............................................................................................... 14
Page 3 of 14
FCC NOTICE
FCC ID: ZOC-IMI670A01
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
INDUSTRY CANADA (IC) NOTICE
IC: 9732A-IMI670A01
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device.
Page 4 of 14
Introduction
The Echo
®
Wireless Vibration Sensor is a one-way wireless transmitter used for the
condition monitoring of plant equipment. The sensor, when activated by a magnet, will
“wake up” at determined intervals (8 hours by default) to measure and transmit vibration
levels. An Echo
®
Receiver connected to a computer with the Echo
®
Data Server software
installed is required to receive and collect transmissions. For information on the setup
and installation of the Echo
®
Receiver and Echo
®
Data Server, please consult the Echo
®
Receiver System Manual.
Proper Handling
Proper handling of the Echo
®
Wireless Vibration Sensor is critical to preventing damage.
The following should be avoided:
• Dropping the unit.
• Hitting the unit against hard surfaces.
• “Slapping” the unit when mounting with a strong magnet.
• Submersing or spraying the units with fluids of any kind.
• Touching the electronic components under the cap.
• Using excessive torque when mounting the unit.
• Forcing a stud without ¼-28 UNF threads into the base.
• Twisting the isolated base and housing of transmitter.
• Exposing the unit to temperatures above 170° F.
• Exposing the cap to any reactive chemicals.
The sensor cap is easily cross threaded. To avoid cross threading the
sensor cap, turn the cap counter-clockwise until a click is heard. When
a click is heard, begin turning the cap clockwise slowly and carefully. If
the cap does not easily thread on do not force it.
Caution
Page 5 of 14
The Magnet Switch and LED Status Indicator
The Echo
®
Wireless Vibration Sensor is activated by a magnet switch located on the side
of the housing. The exact location of the magnet is etched on the sensor housing. If a
fairly strong magnet is held near the location of the magnet switch, the blue LED light
will begin blinking quickly. If the sensor was previously deactivated it will become
active and immediately take its first measurement. If the sensor was previously active it
will deactivate and no longer take measurements. The blue LED light allows the user to
quickly.
LED Status Messages
Blue LED Message Current Sensor Status
Fast continuous blinking Magnet switch is currently being activated.
4 second intermittent blink Sensor is turned on and waiting for the next transmission.
8 second intermittent blink Sensor is turned off and will not make measurements.
Dim illuminated LED Sensor is currently measuring vibration levels.
Bright illuminated LED Sensor is currently transmitting information to receiver.
Page 6 of 14
Programming the Echo
®
Wireless Sensor
The Echo
®
Wireless Vibration Sensor can be programmed with a computer running the
Echo
®
Data Server software through a serial port.
If your computer is not equipped with a serial port, a USB to RS232
adaptor can be used. These are readily available from computer
electronics vendors.
Attaching the Programming Cable
To begin programming the Echo
®
Wireless Vibration Sensor, unscrew the cap carefully
to expose the USB port inside the sensor. Carefully attach the programming cable to the
sensor and your computer’s serial port (use the USB to RS232 adaptor if necessary).
Connecting to the Sensor with the Echo
®
Data Server Software
Launch the PCB Echo
®
Data Server and click Echo
®
EchoPlus
®
Sensors under the
Configuration drop down menu in the upper left hand corner of the screen.
Tip
Page 7 of 14
The program will then ask if you wish to set up a Echo
®
Wireless Sensor or an EchoPlus
®
Wireless Junction Box. Select “I want to add, update, or view an Echo
®
Wireless
Sensor’s Parameters”.
Select the receiver that you would like this specific sensor attuned to. If you are using a
single receiver select the default setting.
The software will then ask if you would like to set up the sensor, the database, or both. If
this is the first time you are activating this sensor you must do both. Installing a new
sensor and configuration of the database is covered in the Echo
®
System Setup Manual.
We will continue by only changing the programming of the Echo
®
Sensor. Select “I will
only configure the Echo
®
device at this time” button and click Next.
Make sure the sensor is connected to the computer through the USB to RS232
programming cable and hit OK.
Page 8 of 14
The connection window will appear. Select the appropriate COM port to which the cable
is connected.
Reading the Current Programmed Parameters
Click “Link to Echo
®
” and the green light will illuminate indicating the connection has
been made. The fields at the right of the window will populate with the current
programmed parameters.
The Sensor ID is set at the factory and CANNOT be changed. This ID is
unique to each sensor we manufacture. The factory default the
Transmission Interval is 8 hours, RVL is 0 (off), and the CF Report
Threshold is 0.15.
Tip
Page 9 of 14
Explanation of Echo
®
Wireless Sensor Parameters
Sensor ID – The Sensor ID is a unique ID programmed and etched onto each sensor at
the factory. This number cannot be changed.
Transmission Interval – The Transmission Interval is the time between transmissions.
The factory default level is 8 hours, that is the sensor will “wake up” and make a
measurement every 8 hours (3 times per day). At the default 8 hour transmission interval
the primary lithium-ion batteries are expected to last 5 to 10 years.
Decreasing the Transmission Interval will provide data more often;
however, transmitting more often will decrease battery life. Keep in
mind “more data is not better data” and may be more than you can
process and manage.
RVL (Residual Vibration Level) – This is the minimum Residual Vibration (that is,
vibration that is currently present) for the sensor to wake up and make a measurement. If
the current vibration is below the RVL, the sensor will assume the equipment is turned
off and will not waste battery power transmitting unusable data. If the value is set to “0”
this feature is disabled and will always make a measurement.
CF Report Threshold – Because crest factor is the ratio of true peak divided by RMS
vibration, in some instances where the RMS value is extremely low (such as slow speed
equipment) the crest factor will appear exceptionally high. This report factor is the
minimum RMS level in g for the Crest Factor to be reported.
Saving Changes to the Echo
®
Sensor
Click the “Set” button next to each field you wish to update. The new value will be
saved in the Echo
®
Sensor. To verify the programming has been saved click “Link to
Echo
®
” and verify the desired values re-populate the fields.
When you are satisfied with the programming of the sensor, click the X close button in
the upper right hand corner of the window.
Tip
Page 10 of 14
Updating the Database to Match Sensor Programming
If this is the first time you are putting the sensor in the database the following dialog will
appear. This dialog will indicate the standard template has been assigned to this sensor.
If this is the case, refer to the Echo
®
System Manual for instructions on setting up the
database.
When a sensor programming has been changed the database will automatically update to
match the current programming.
Page 11 of 14
Changing the Transmission Interval, RVL, or CF Report Threshold
manually in the Database is NOT recommended. These values determine
what the software expects the sensor to do, not what the sensor will
actually do. For example, if you change the Database from 8 hours to 1
hour, the sensor will still transmit every 8 hours, but the Database will expect
transmissions every 1 hour. The software will think the transmitter is late or
missing transmissions.
The values below should only be changed in the sensor programming.
Tip
Page 12 of 14
The RV (Raw Vibration) Option
Sensors ordered with the RV prefix including the optional raw vibration output feature.
These sensors are easily distinguished due to the small connector located on the side of
the unit. This connector is not present on the standard unit.
A special cable can be used to connect to the sensor’s 4 pin connector and a standard
BNC connector on your data collector. To collect data, treat the sensor like a standard
ICP
®
or IEPE 100 mV/g accelerometer. Your data collector should provide 18-30VDC
2-20mA constant current excitation power. The output will be a 5 VAC dynamic signal
from -50 to +50 g.
Ensure the shorting cap is replaced after raw vibration data is collected.
The transmitter will not be able to collect data without it!
Caution
Page 13 of 14
Mounting
The Echo
®
Wireless Vibration Sensor should be stud mounted on a clean, flat surface.
The sensor is sensitive in the axis that passes through the mounting hole in the base of the
unit. It is not recommended to mount the sensor with a magnet or adhesive due to the
size and mass of the sensor.
Outline Drawing
Spot Face Tool
If a clean and flat spot is not available, it is recommended to prepare a flat machined
surface with IMI model 080A127 1” spot face tool. This tool will prepare a flat surface
and drill the appropriate pilot hole for a ¼-28 UNF thread. The tap is not included in the
kit.
Page 14 of 14
Replacing the Battery Pack
To replace the battery pack, carefully slide the battery pack out and disconnect the small
power connector on the circuit board.
DO NOT ATTEMPT TO RECHARGE BATTERIES.
DO NOT REPLACE WITH STANDARD AA SIZE BATTERIES.
The Echo
®
Sensor is equipped with primary lithium-ion batteries that
are not rechargeable. Please consult the factory or your local
distributor for replacement battery packs.
Caution

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