Portable Data Logger OM SQ2040 Series

User Manual: OM-SQ2040 Series

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Portable Data Logger
OM-SQ2040
U 16 True Differential or

32 Single-Ended Universal
Analog Inputs for Voltage,
Current or Resistance
Measurements—Plus 2 High
Voltages, 4 Pulse and 8 Digital
Event/State Inputs
U Analog Inputs Can Be Used with
Thermistors, Thermocouples,
2, 3 or 4-Wire RTD Temperature
Sensors and 4 to 20 mA Signals
U User Selectable Logging
Rates of Up to 100 Hz on
Up to 4 Channels
U Download of Internal Data to
Removable MMC/SD (Multi Media
Card/Secure Digital) Memory
U Large Non-Volatile Internal
Memory—Data Retention
is Virtually Indefinite
U Ethernet, Wi-FI (On the
OM-SQ2040-2F16-WIFI
and OM-SQ2040-4F16-WIFI)
USB and RS-232
Communication Ports
U Sensor Power and FET
Input Connections
Alarm Outputs For Use
The OM-SQ2040-2F16 data logger
With External Devices
has two analog to digital converters
(A/D’s) which increases logging
U Easy Access to Information
flexibility over the OM-2020-1F8
Using the 2 Line, 20 Character
model. The first corresponds to
LCD and Push Button Panel
inputs on blocks A, B, C and D and
U Calculated Channels Derived
the second corresponds to inputs
from Real Channels Using
on blocks G, H, J and K. Each
Advanced Mathematical
connection block will accept up
Functions
to 2 differential inputs or up to
4 single-ended inputs (it is not
The OM-SQ2040 Series combines a possible to mix single ended and
higher channel count with the same
differential inputs on a block).
high performance, comprehensive
features and universal inputs as the The OM-SQ2040-4F16 data logger
OM-SQ2020 in a neat compact and
has four analog to digital converters
portable instrument. Using multiple
(A/D’s) which increases logging
24-bit analog to digital convertors, twin flexibility over the other OM-SQ2020
processors and removable memory
and OM-SQ2040 models. The first
options provide great flexibility to
corresponds to inputs on blocks A
handle a wide range of complex and
and B, the second corresponds to
demanding multi-channel applications. inputs on blocks C and D, the third
The OM-SQ2040 series are the ideal
corresponds to inputs on blocks G
data loggers for industrial, scientific
and H and the fourth corresponds
research and quality assurance
to inputs on blocks J and K. Each
applications. The OM-SQ2040
connection block will accept up to
provides stand-alone data
2 differential inputs or up to 4 singleacquisition, advanced networked
ended inputs (it is not possible to
solutions and data analysis straight
mix single-ended and differential
out-of-the-box.
inputs on a block).

OM-SQ2040-2F16-WIFI
data logger shown smaller
than actual size.

Concurrent Sampling

The OM-SQ2040 series uses multiple
analog to digital converters that
enables true concurrent sampling
and logging. This allows the user to
configure up to 4 channels to log at a
rate of 100 Hz while retaining different
sample speeds on other channels.
This makes the OM-SQ2040 ideal
for measuring dynamic parameters
that change at different rates such as
temperature and pressure.

Communications Ethernet,
Wi-Fi (on the OM-SQ2040-2F16-WIFI
and OM-SQ2040-4F16-WIFI) USB
and RS-232 serial ports are
built-in. This allows quick connection
to either a PC based TCP/IP network,
a wireless to PC connection or to a
modem for remote data downloading.
1

This flexibility enables global data access and
retrieval as well as complete system integration of the
OM-SQ2040 series into complex
and critical applications.

You can also zoom in on areas of interest, use a
cursor to pick out exact values, times and dates, get
astatistical summary of your data, set high and low
alarm thresholds and, using the calculation function,
you can create new virtual channels from existing
channels.

Multiple Configurations Stored
in the Logger

The OM-SQ-SOFT-PLUS software also incorporates
a report generation facility, which allows you to create
custom report templates consisting of a title page
with descriptive text, headers and footers, graphs,
tabular list of data, statistics and data logger setup
information. Templates can be setup with any of these
combinations and saves time when preparing similar
presentations of data.

Up to six logger configurations (channel type,
names, logging speeds, triggers, etc.), together
with the current configuration, can be held in the
logger’s internal memory. Additional configuration
settings can also be loaded from the external
MMC/SD memory card. This allows the operator
to quickly and easily switch between logger
configurations without the need for a PC.

Comprehensive Software Configuration
The OM-SQ-SOFT software (supplied with the
OM-SQ2040 series data loggers) allows logger
configuration, data download and data export while
giving the user full control over the OM-SQ2040.

The optional OM-SQ-SOFT-PLUS software gives the
user access to many advanced data analysis and data
archiving/transfer features.
The optional OM-SQ-SOFT-PLUS software lets you
quickly and easily analyze the data from your
OM-SQ2040 data logger in a familiar Explorer style
interface. Data can be displayed with 2 different
auto scaling Y-axis. This is particularly useful when
displaying widely varying data from different sensors
on one graph.

Data logger setup - channel
configuration screen

Input Channels
Analog Input Channel Options

OM-SQ2040-2F16

OM-SQ2040-4F16

Analog to Digital Converters

2

4

Differential
Single ended
3 or 4 wire

16
32
0

16
32
8

Additional Channels		
Pulse
Event/Digital
High Voltage
Internal Channels
		
Logging Speeds
		

(2x fast—64 kHz) and (2 x slow—100 Hz)
8 state inputs of 1 x 8 bit binary
2
2 temperature
1 sec to 1 day in sec increments
2, 5, 10, 20 or 100 Hz
(20 or 100 HZ only on 2 channels)

(2x fast—64 kHz) and (2 x slow—100 Hz)
8 state inputs of 1 x 8 bit binary
2
2 temperature
1 sec to 1 day in sec increments
2, 5, 10, 20 or 100 Hz
(20 or 100 HZ only on 4 channels)

Standard Ranges for Temperature
Channels Each channel can be individually set to

any of the ranges listed; Pt100 to IEC751 and JIS1604
and Pt1000 to IEC751
Input Type

Range °C

Range °F

Y & U: Thermistor **
Pt100/P1000*

-50 to 150
-200 to 850

-58 to 302
-328 to 15620

* 2-wire only on OM-SQ2040-2F16, 3- or 4-wire on OM-SQ2040-4F16
** or user-defined thermistor (enter Steinhart-Hart coefficients or
RT pairs)

Thermocouple
Type

Range °C

Range °F

/

-200 to 1372
-200 to 400
-200 to 1200
-200 to 1300
-50 to 1768

-328 to 2501
-328 to 752
-328 to 2192
-328 to 2372
-58 to 3214

2

16 to 32 universal
analog inputs
for recording
temperature,
current, voltage and
resistance

OM-SQ2040 data
logger, rear view,
shown smaller than
actual size.

USB, Ethernet and
RS232 connectivity for
quick and easy PC and
remote communication
and networking

Power output for
sensor excitation/
external devices

Easy to use,
removable
connector system

2 high voltage
channels (20,
40 or 60V) for
automotive
applications

Power supply–
internal alkaline
batteries or
external DC power
supply

Range of trigger
functions via 8
digital inputs;
4 pulse rate/
counter inputs

4 alarm
outputs for
triggering
external
devices

Standard Ranges for dc Voltage

Each voltage channel can be any of the voltage ranges below.
Mixed differential and single ended configurations are permitted.
Voltage Range
Voltage Range
High Voltage Input Ranges*
-0.075 to 0.075V
-0.15 to 015V
-0.3 to 0.3V
-0.6 to 0.6V
-0.6 to 1.6V
-0.6 to 2.4V

-3.0 to 3.0V
-6.0 to 6.0V
-6.0 to 12.0V
-6.0 to 25.0V

4.0 to 20.0V
4.0 to 40.0V
4.0 to 60.0V

* Max of 2 may be selected

Standard Ranges for Current
and Resistance Channels

Each current channel can be any of the current ranges below.
Current ranges use differential input channels.
Current Range
(External 10 Ω Shunt)
-30.0 to 30.0 mA
4 to 20 mA
		
		

Resistance Range
2 Wire
0.0 to 1250.0 Ω
0.0 to 5000.0 Ω
0.0 to 20000.0 Ω
0.0 to 300000.0 Ω

Specifications
Analog Inputs
Accuracy: See table
Common Mode Rejection: 100 dB
Input Impedance: >1MΩ
Linearity: 0.015%
Series Mode Line Rejection:
50/60 Hz 100 dB

Resistance Range
Input Ranges
0.0 to 500.0 Ω
0.0 to 4000.0 Ω

Analog Input Connections:
Detachable screw terminal blocks
Analog—Digital
Conversion
Type: Sigma-Delta
Resolution: 24-bit
Sampling Rate: Up to 10, 20* or
100* readings per second per ADC
* With mains rejection off

Alarm Outputs
4 x open drain FET (18 V 0.1 A)
Digital I/O Connections:
DB25F connector
Calculated Channels
Up to 16 virtual channels derived
from physical input channels
Resolution
Up to 6 significant digits
Programming/Logger Setup
OM-SQ-SOFT or
OM-SQ-SOFT-PLUS software
Software compatible
with XP/VISTA
(32-bit & 64-bit)/7 (32-bit & 64-bit)
Communication
Standard: RS232 (automatic
baud rate selection to 115200
baud) Ethernet 10/100 base TCP/IP
USB 1.1 and 2.0 compatible
Wireless Ethernet:
(Wi-Fi); 802.11b, 2.4GHz,
1 to 14 channels
Security: Open, WEP (64 or 128bi
encryption), WPA or PA2/802.11i
Network: Infrastructure only with
specified SSID (external power pack
required for Wi-Fi connection)

3

Input Channels

Accuracy @ 23°C

Differential voltage		
Single-ended voltage 		
High voltage on block F		
Differential current		
2-wire and 3-wire resistance (above 500 Ω)		
4-wire resistance		
2-wire and 3-wire temperature		
4-wire temperature		
Differential J, K and N thermocouples (above -50°C) *		
Differential R, S and T thermocouples (above -50°C) *		
Single-ended J, K and N thermocouples (above -50°C) *		
Single-ended R, S and T thermocouples (above -50°C) *
Pulse count and rate		

±(0.025% of reading + 0.005% of full scale)
±(0.025% of reading + 0.005% of full scale)
±(0.075% of reading + 5 mV)
±(0.02% of reading + 0.015% of full scale)
±0.1% of reading
±(0.05% of reading + 0.15 Ω)
±(0.1% of reading + 0.1% of full scale)
±(0.05% of reading + 0.05% of full scale)
±0.075% of full scale
±0.175% of full scale
±0.1% of full scale
±0.225% of full scale
±(0.0011% of reading +1)

* Includes cold junction compensation (CJC) error.
Data logger held at constant temperature.

External Options: GSM, WIFI
and PSTN Modems
Power Supply
Internal: 6 “AA” alkaline batteries
(included)
External: 10 to 18 Vdc reverse
polarity and over-voltage protected
Power Consumption @ 9V
Sleep Mode: 600 µA
Logging: 40 to 130 mA
Display and keypad
2 line x 20 character LCD display;
battery state and external power
indicator; keypad lock
Navigate To: Arm/disarm/pause/
continue; meter any channel or alarm;
select from up to 6 x pre-stored
setups; status/diagnostics/memory/
time and date; download to MMC/SD
Operating Environment
Temperature: -30 to 65°C
(-22 to 149°F)
Humidity: 90% at 40°C
non-condensing
GENERAL
Power Output
for External Device:
Regulated 5 Vdc at 50 mA or
logger supply voltage at 100 mA
Time and Date:
Built-in clock in 3 formats
Scaling Data: Displays readings
in preferred engineering units
Internal Memory: 16 MB
(Up to 1,800,000 readings)
External Memory:
Up to 1 GB— removable MMC/SD
(for transferring internal memory
and storing setups only)
Dimensions:
175 H x 235 W x 95 mm D
(6.9 x 9.3 x 3.7")
Weight: Approx. 1.2 kg (2.6 lb)
Enclosure Material: ABS
Memory Modes
(Internal Only):
Stop when full or overwrite

OM-SQ2040-2F16-WIFI
data logger shown smaller
than actual size.
SM

Extended Warranty
Program

OMEGACARESM extended warranty program
is available for models shown on this page.
Ask your sales respresentative for full details
when placing an order. OMEGACARESM
covers parts, labor and equivalent loaners.

To Order
Model No.
OM-SQ2040-2F16
OM-SQ2040-4F16
OM-SQ2040-2F16-WIFI
		
OM-SQ2040-4F16-WIFI
		

Description
Portable data logger with 2 fast channels
Portable data logger with 4 fast channels
Portable data logger with 2 fast channels
and integrated Wi-Fi networking
Portable data logger with 4 fast channels
and integrated Wi-Fi networking

Comes complete with software, USB cable, wall bracket, 6 “AA” batteries, 10 input terminal
blocks, 4 current shunt resistors and operator’s manual.
To order data logger with calibration certificate, add suffix “-CAL” to model number.
Ordering Example: OM-SQ2040-2F16 portable data logger with 2 fast channels,
OM-SQ-SOFT-PLUS software and OCW-1 OMEGACARE 1 year extended warranty for
OM-SQ2040-2F16 adds 1 year to standard 1-year warranty.

Accessories
Model No.
OM-SQ-NET-ADAP
OM-SQ-GSM-KIT
OM-SQ-RF-ADAP
OM-SQ-UNIV-ADAP
OM-SQ-UNIV-ADAP-1
OM-SQ-CS
OM-SQ-SER-CABLE
OM-SQ-USB-CABLE
OM-SQ-TB3
OM-SQ-TB4
OM-SQ-TB6
OM-SQ-SOFT-PLUS
OM-SQ-SOFT-PLUS-LIC

Description
Serial/ethernet converter kit
GSM modem kit
Wireless network adaptor
Universal power pack
Universal power pack with 1 m (3.2') flying lead
Spare current shunts (package of 4)
OM-SQ data logger to PC serial port cable
Spare OM-SQ data logger to PC USB port cable
Spare 3-way terminal block with cable restraint
Spare 4-way terminal block with cable restraint
Spare 6-way terminal block with cable restraint
OM-SQ2040 plus software
OM-SQ2040 plus software multi-user license

4



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