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Measurements Group Strain Gauge Instrumentation

2300 System Signal Conditioning Amplifier

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The 2300 System conditions and amplifies low-level signals to high-level outputs for multiple-channel, simultaneous dynamic recording and display on external devices.
Among its features, each 2310/2311 Module includes a built-in power supply, active filtering, three simultaneous outputs, playback mode, wide frequency response, and electronic bridge balance. Socket-mounted integrated circuits and discrete components achieve the demanding specifications listed while providing ease of serviceability.
Up to ten 2310/2311 Modules can be mounted in a Model 2350 Rack Adapter; or up to four modules in a Model 2360 Portable Enclosure; or, a single 2310/2311 can serve as a stand-alone unit.

Features

Selectable bridge excitation, 0.5 to 15 Vdc (0.4 to 15 Vdc for Model 2311).
Fully adjustable calibrated gain from 1 to 11 000.
Dual-range (+5000 and +25 000 microstrain) automatic bridge balance, with "keep-alive" power to preserve balance for months without external power.
All bridge completion built in, including 120- or 1000- and 350-ohm dummies.
Dual polarity two-step double shunt calibration.
Bandpass:
2310: 25 kHz (-0.5 dB)
65 kHz (-3.0 dB)
2311: 50 kHz (-0.5 dB)
125 kHz (-3.0 dB).
Switchable active filter - up to six poles.
Three simultaneous buffered outputs.
Playback mode to filter and observe or re-record previously recorded magnetic tape data.
Input impedance above 10 megohms at all times.

Configuration
The 2310/2311 Signal Conditioning Amplifier Modules can be used as stand-alone single-channel units or can be plugged into racks for multi-channel testing.

Signal Conditioning Amplifiers
Model 2310
Model 2311

Digital Display
Model 2331 (With Peak-Hold)

Mounting Hardware
Model 2350 Rack Adapter
Model 2355 10-Channel Enclosure
Model 2360 4-Channel Enclosure