
Bridge/Strain Gage Data Logger 
Part of the NOMAD
®
 Family
OM-CP-BRIDGE120
†
Optional 
U Store up to 32,767 
Readings
U Ideal for High Speed 
Applications
U Real Time Operation 
U Programmable Start Times 
U Miniature, Stand-Alone 
Design
U Reusable, Battery Powered
OM-CP-BRIDGE120-25 high 
speed data logger shown 
larger than actual size.
The OM-CP-BRIDGE120 Series are 
battery-powered, stand-alone data 
loggers that measure and record 
voltage signals from strain gages, 
load cells and other low level dc 
sources. These compact units are 
perfect for monitoring stress, torque, 
strain, pressure and data from many 
other sensors/transducers. 
OM-CP-BRIDGE120 Series data  
loggers are available in ranges from 
±10 to ±1000 mV, and are capable 
of storing up to 32,767 readings, 
and up to 20 readings/sec.
The OM-CP-BRIDGE units feature 
non-volatile solid-state memory, and 
can store readings even when the 
battery is discharged. 
Data retrieval is quick and easy – 
simply plug into an available USB 
port. The OM-CP-IFC software 
displays your data in an easy to use 
graph, so you can analyze your data 
quickly.
A variety of powerful tools allow  
you to examine, export and print 
professional looking data with just  
a click of the mouse.
Specifications
Input Connection: 6-position 
removable screw terminal 
Input Impedance: 1 MΩ during  
acquisition, low impedance when 
inactive 
Reference Voltage Output: 
2.5 Vdc, 2.5 mA (1 kΩ) max load
Maximum Input Signal 
Impedance: 5 kΩ (350 Ω sensors 
can be used with series resistors to 
produce >1 kΩ; 120 Ω gages can  
be used in half and quarter bridge 
configurations) 
Specified Accuracy: Nominal 
range @ 25°C
Temperature Effect on Span and 
Offset: <25 µV over -40 to 80°C 
Engineering Units: Stored in 
device; user may define any desired 
scale and offset from ±1.000E-31 to 
±9.999E+31 
Start Modes: Software 
programmable immediate or delay 
start up to 1 day 
Real-Time Recording: Device can  
be used with PC to monitor and 
record data in real-time 
Memory: 32,767 readings; software 
configurable memory wrap
Reading Rate: 20 Hz to 12 hr 
Calibration: Digital calibration 
through software 
Calibration Date: Automatically 
recorded within device to alert user 
when calibration is required 
Power: 3.6V lithium battery 
(included); user replaceable
Battery Life: 25 days 
Power: 3.6V lithium battery 
included 
Data Format: Date and time 
stamped: %, ppm; e, µe, V, mV, µV 
engineering units specified through 
software 
Time Accuracy: ±1 min per/month  
(20 to 30°C) 
Computer Interface: PC serial,  
RS232C COM or USB (interface 
cable required); 57,600 baud 
Software: XP SP3/Vista and  
7 (32 and 64-bit) 
Operating Environment: 
-40 to 80°C (-40 to 176°F)  
0 to 95% RH non-condensing 
Dimensions: 42 H x 68 W x 20 mm D  
(1.7 x 2.7 x 0.8") 
Weight: 60 g (2 oz)
† Refer to next page for NIST 
calibration ordering information.
Input Ranges OM-CP-BRIDGE120 Nominal Range
 Nominal Range  ±10 mV  ±25 mV  ±100 mV  ±1000 mV 
 Measurement Range  ±15 mV  ±37.5 mV  ±150 mV  ±1200 mV 
 Resolution  1 µV  2.5 µV  5 µV  50 µV 
 Calibrated Accuracy ±0.25% FSR ±0.10% FSR ±0.05% FSR ±0.01% FSR
1
To Order, Call  or Shop Online at omega.com
SM
 

OM-CP-IFC200 Windows 
software displays data in 
graphical or tabular format, 
sold separately.
Laptop not  
included.
To Order 
  Range  Measurement   
 Model No.  Nominal  Range  Resolution  Accuracy
 OM-CP-BRIDGE120-10  ±10 mV  ±15 mV  1 µV  ±0.25% FSR
 OM-CP-BRIDGE120-25  ±25 mV  ±37.5 mV  2.5 µV  ±0.10% FSR 
 OM-CP-BRIDGE120-100  ±100 mV  ±150 mV  5 µV  ±0.05% FSR 
 OM-CP-BRIDGE120-1000  ±1000 mV  ±1200 mV  50 µV  ±0.01% FSR
Visit omega.com/om-cp-bridge120 for Pricing and Details
ACCESSORIES
 Model No.  Description 
 OM-CP-IFC200  Windows software and 3.7 m (12') USB interface cable     
 OM-CP-BAT105  Replacement 3.6V lithium battery    
 OM-CP-CONNECTOR-6  Replacement 6 position terminal block connector
Comes complete with terminal block connector, and 3.6V lithium battery. Operator’s manual and interface cable are included with the        
OM-CP-IFC200 software (required for data logger operation and sold separately). 
†
 To order with NIST-traceable calibration certificate, add suffix “-CERT” to model number for additional cost. 
Ordering Example: OM-CP-BRIDGE120-10, bridge/strain gage data logger, and OM-CP-IFC200, software with USB cable.
To Order, Call  or Shop Online at omega.com
SM
2