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Compact Strain Gauge Bridge Completion Module

120 Ω Resistor network
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$124.87

Item# BCM-2-120R

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $124.87
5-9 $118.63
10-24 $116.13
25-49 $111.13
50-99 $108.64
100+ $106.14

In stock

Lead Time (If not in stock): 11 weeks
120 Ω Resistor network BCM-2-120R BCM-2-120R
  • Easy to Use
  • Ultra Low TCR
  • Ultra High Precision, Accuracy, and Stability
  • Compact size

BCM-2-120R Model Options

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Resistance
Features


  • Capacitance 1 pF max
  • ESD protection >25 kV
  • Inductance 0.1 µH max
  • Matched (R1 & R2) Tolerance 0.01%
  • Operation Temperature -45 to 125°C (-49 to 257°F)
  • Outer Dimention 1.2" x 0.7" x 0.3"
  • PCR ±5ppm/watt
  • Rated Power 600 mW
  • Resistor Tolerace 0.02%
  • Solder pad Size 0.08" x 0.08"
  • Stability <50 ppm 2000hr@100mW, <150ppm after 10,000hrs
  • TCR 5 ppm
  • VCR <0.1ppm/V

An external bridge completion module must be used when instrumentation is not designed to measure a strain gauge directly. The BCM-2 Series employs metal-foil resistance elements bonded to a ceramic substrate. The packaging protects the resister circuitry and ensures long-term stability; in most cases, no additional protection is required, facilitating field use. The BCM-2 resistance elements are matched with each other and match the ceramic's thermal expansion coefficient, resulting in a low temperature coefficient of resistance (TCR).

Each module is marked with a circuit/wiring diagram for easy terminal identification and foam tape for easy attachment to the test-part surface or near the instrumentation site. Heavy, pre-tinned copper terminals facilitate the attachment of up to 22 AWG (0.64mm diameter) lead wires.

Completing a bridge circuit adjacent to the strain gage site creates a stable simple voltage differantial systme between the strain gage circuit and the instrumentation. Co-locating the strain gauges and BCM-2 also reduces the potetional for noise pickup in the lead wire system especially in situations where switch contacts, slip rings, or other mechanical connections are employed between the strain gages and instrumentation.

Cross to Vishay/Micro-Measurements MR1-350-130 & MRF-350-130

Part number Resistor Value
BCM-2-120R 120 Ω
BCM-2-350R 350 Ω

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Rated 5 out of 5 by from EZPZ Works great! Takes the guesswork out of a wheatstone bridge
Date published: 2022-11-14
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What is the pitch between the solder pads?

Asked by: tb123
Hello, I have contacted our engineering team for this information. Can you kindly email us at pressure@omega.com? I can forward you the response as soon as I hear from them. Thank you.
Answered by: SAE DVJ
Date published: 2023-08-05

If one wanted to shunt calibrate one of these devices, which terminals should the shunt resistor be placed?

Asked by: Wyman
Thank you for your inquiry, shunt calibration is usually connected across the negative excitation and the negative output terminals
Answered by: rkent
Date published: 2022-10-28
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