eDAQ-lite Bridge Layer

Overview

The SoMat eDAQ-lite Bridge Layer (ELBRG) offers four simultaneously sampled low level differential analog inputs through independent connectors. An extremely versatile layer; the Bridge Board works with both amplified and unamplified transducers including: strain gauges, accelerometers, pressure transducers, load cells, and other general analog signals. The ELBRG provides excellent strain gage conditioning with support for 1/4-, 1/2-, and full-bridges. Automatic balancing and gain settings as well as software selectable sample rates, excitation, and digital filtering; simplify the set-up of a strain channel. There are several calibration options including; defined value, external, multipoint, and shunt calibrations with embedded software tools. Four shunt calibration resistors per channel are also included, with software selectable shunt direction.

Product Specifications

Physical

Size: 6.875inW x 5.625in L x 0.694in H (175mm W x 143mm L x 1.76mm H)
Weight: 0.91lbs (0.42kg)
Temperature: -20° to 65° C
Connectors: (4) SoMat M8 Female Bulkhead Connectors

Inputs

Range:

Minimum full-scale: ±625μV
Maximum full-scale: ±10V

Resolution: 16-bit ADC, across specified full scale range
Sample Rates: Independently Set

100kHZ Master Clock= 0.1Hz to 100kHz
98.3kHz Master Clock= 0.1 Hz to 98,304Hz

Filtering:

Analog: 25kHz, 8-pole Butterworth low-pass filter
Digital: Software selectable; 8-pole Butterworth and Linear Phase

Strain Gage Conditioning:

Supports: 1/4, 1/2, and Full Bridge Gages
Excitation: 5V (Bipolar ±2.5) or 10V (Bipolar ±5)
Bridge Resistance:

1/2 and Full Bridge: 100 to 10,000Ω.
1/4 Bridge: Completion Resistor; specified 350Ω (ELBRG-350) or 120Ω (ELBRG-120)

Four shunt calibration resistors per channel:

50k Ω
100k Ω
200k Ω
500k Ω

Selectable shunt direction:upscale (-Sig to -Ex), downscale (-Sig to +Ex)

Includes

(4) SoMat SAC-TRAN-MP-2 Transducer Cables (2 m)

Product Options

Part Number Code

The following part number scheme is used to identify the layer configuration.

ELBRG - XXX

eDAQ-lite Layer ELBRG

1/4 Bridge Completion Resistor

120 Ω
350 Ω

Cables and Accessories

Accessories

M8 Hex Nut Wrenches

M8 Hex Nut Wrenches The SoMat M8 Hex Nut Wrenches (HDW-0034-00) work with the SoMat M8 transducer and extension cables for both the eDAQ and eDAQ-lite.

Cables

Extension Cable (0.4 m)

Extension Cable (0.4 m) The SoMat SAC-EXT-MF-0.4 Extension Cable (SAC-EXT-MF-0.4) is a high-quality 0.4 meter pre-molded cord set with Male/Female SoMat M8 connectors.

Extension Cable (10 m)

Extension Cable (10 m) The SoMat SAC-EXT-MF-10 Extension Cable (SAC-EXT-MF-10) is a high-quality 10 meter pre-molded cord set with Male/Female SoMat M8 connectors.

Extension Cable (15 m)

Extension Cable (15 m) The SoMat SAC-EXT-MF-15 Extension Cable (SAC-EXT-MF-15) is a high-quality 15 meter pre-molded cord set with Male/Female SoMat M8 connectors.

Extension Cable (2 m)

Extension Cable (2 m) The SoMat Extension Cable (SAC-EXT-MF-2) is a high-quality 2 meter pre-molded cord set with Male/Female SoMat M8 connectors.

Extension Cable (5 m)

Extension Cable (5 m) The SoMat SAC-EXT-MF-5 Extension Cable (SAC-EXT-MF-5) is a high-quality 5 meter pre-molded cord set with Male/Female SoMat M8 connectors.

Transducer Cable (10 m)

Transducer Cable (10 m) The SoMat Transducer Cable (SAC-TRAN-MP-10) is a high-quality 10 meter pre-molded cord set with tinned pigtail wires for transducer wiring.

Transducer Cable (2 m)

Transducer Cable (2 m) The SoMat Transducer Cable (SAC-TRAN-MP-2) is a high-quality 2 meter pre-molded cord set with tinned pigtail wires for transducer wiring.