Omega Products BCM-1 User Manual
BRIDGE COMPLETION MODULE
BCM-1
BCM-1, shown
actual size.
U Internal Bridge
Balance Adjustment
for Nulling Out
Unstrained Conditions
1
⁄4 Bridge Completion
U
for 120 or 350 Ω
Strain Gages
1
⁄2 Bridge Completion
U
for Gages of Any
Resistance
U 5 ppm Temp Coefficient
Resistors for High
Temperature Stability
The BCM-1 bridge module completes
the Wheatstone bridge circuit. The
module can be used for quarter-bridge
measurements with 120 or 350 Ω
gages, or for half-bridges with gages
of any resistance. A bridge-balanceadjustment potentiometer zeros
the bridge output. Strain gage,
excitation, and output signals are
connected via screw terminals.
Quarter-bridges with 2- or 3-wire hookup
can be accommodated.
SPECIFICATIONS
Maximum Excitation:
120 Ω Bridge: 10 Vdc
350 Ω Bridge: 16 Vdc
Temperature Limits: -20 to 80°C
(-4 to 176°F)
Temperature Effects: ±1.5 µV/V/°C
Zero Adjust: ±6 mV/V
Resistor Tolerance: ±0.1%
To Order
MODEL NO. DESCRIPTION
BCM-1 Strain gage bridge completion module
Comes complete with operator’s manual.
Ordering Example: BCM-1, strain gage bridge completion module.
Visit omega.com/bcm-1 for Pricing and Details
Resistor Temp Coefficient: 5 ppm/°C
Dimensions:
50.8 W x 31.8 H x 25.4 mm D
(3 x 1.25 x 1")
Mounting Holes: 4.4 mm (0.175")
holes (2) on 63.5 mm (2.5") center
STRAIN GAGES
E
E-70
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