Graphtec WR3-DCB Dc Strain Preamp for Wr300 Series, 2-Channel Module

Name: Graphtec WR3-DCB Dc Strain Preamp for Wr300 Series, 2-Channel Module
Brand: Graphtec
SKU: GraphtecWR3-DCB
Price: 1000.00 USD
Availability: InStock

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DC Strain preamp for WR300 Series, 2-channel module

Plug-in 2-channel WR3 series amplifiers
Adapt the system to a wide variety of input types and sensors
For use with WR300 Series Thermal Arraycorder Mainframes

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List Price: $1,000.00

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Specifications
Number of Channels	2 channels per module
Input Resistance	Approx. 10 MΩ (5M + 5M)
Input Terminals/Format	Independent balanced input for each channel (NDIS strain input connectors)
Input Coupling	DC, CAL+, CAL-, ZERO, OFF
Measurement Range	Voltage: 1,000 to 20,000 x 10-6 strain FS (1/2/5 steps)
Accuracy (23 °C ± 3 °C)	±(0.3% of F.S. +1.2 x 10-6 strain)
Insulation Resistance	Min. 100 MΩ (at 500 V DC)
Isolation Voltage	Between input terminal and casing: 1 minute at 1,000 V AC
A/D Converter	Resolution: 16-bit (14-bit effectively) Sampling Interval: 10 µs
Maximum Permissible Input Voltage	Differential input: 10 VDC (DC + ACp-p) Sync Voltage: 100 VACrms
Common Mode Rejection Ratio	80 dB typ (50/60 Hz)
Signal/Noise Ratio	Max. 50 x 10 -6 strain (2 V DC, 350 Ω)
Frequency Bandwidth	DC to 20 kHz (+1/-3 dB)
Stability	Gain: ±0.02% of F.S./°C; 0.10% of F.S./8h Zero Point: ±1.2 x 10-6 strain/°C; ±10 x 10-6 strain/8 h; ±10 x 10-6 strain/0.5 h (initial drift/from 10s after power on)
Filters	L.P.F.: 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz (-3 dB) at -12 dB/oct Line: 1.5 Hz (+1/-3 dB) at -6 dB/Q (octave)
Gauge Ratio	2.0 fixed
Gauge Resistance	120 to 1000 Ω
Bridge Voltage	Accuracy: ±0.2% Stability: ±0.01% / °C Voltage: DC 2 V
Balance Adjustment	Accuracy: ±10 x 10-6 strain (-6=microstrain) Method: Auto balance adjustment method Range: Resistance ±2% (10,000 x 10-6 strain)