Datasheet

www.vishaymg.com [e-mail] Document Number: 11255
24 Revision 18-Oct-06
2300 System
Vishay Micro-Measurements
Signal Conditioning Amplifier
Rear Panel
• AC Line Switch: Selects nominal 115 or 230Vac operation.
• Playback Section: Slide switch activates playback
operating mode. Connects the input to the filter circuits and
post amplifiers. BNC input connector.
• Low-level Output: Full-scale ±1.4V level available at this
BNC connector for driving various recording devices and
low-level analog-to-digital converters.
• High-Level Output: Full-scale ±10V level available at this
BNC connector for driving an oscilloscope, digital volt-
meter, analog-to-digital converter, etc.
• Input Receptacle: All sensor inputs made through this
15-pin quarter-turn connector. Pin selection determines
mode of operation (mating plug included).
• Power Connector: Main power input from the rack adapter,
portable enclosure or individual line plug. Additional pins
for optional remote operation of shunt calibration, bridge
excitation (ON/OFF), and electronic bridge balance.
SPECIFICATIONS
All specifications are nominal or typical at +23°C unless noted. Performance may be degraded in the presence of high-level
electromagnetic fields.
INPUT:
Strain gages: quarter, half or full bridge (50 to 1000Ω).
Built-in 120Ω and 350Ω dummy gages; 1000Ω dummy
capability.
Transducers: foil or piezoresistive strain gage types;
DCDT displacement transducers; potentiometers.
EXCITATION:
Eleven fixed settings: 0.7, 1, 1.4, 2, 2.7, 3.5, 5, 7, 10, 12
and 15Vdc ±1% max.
One variable setting: 0.2 to 7Vdc
Current: 0-100mA, min, limited at 175mA, max.
Regulation (0-100mA ±10% line change): ±0.5mV
±0.04%, max measured at remote sense points. (Local
sense: -5mV, typical, @ 100mA, measured at plug.)
Remote sense error: 0.0005% per Ω of lead resistance
(350Ω load).
Noise and ripple: 0.05% p-p, max (dc to 10kHz).
Stability: ±0.02%/°C.
Level: normally symmetrical about ground; either side
may be grounded with no effect on performance.
BRIDGE BALANCE:
Method: counter-emf injection at pre-amp; automatic
electronic; dual range; can be disabled on front panel.
Ranges (auto ranging):
±5000µ
ε (±1% bridge unbalance or ±2.5mV/V),
resolution 2.5µ
ε (0.0012mV/V).
±25 000µ
ε (±5% bridge unbalance or ±12.5mV/V),
resolution 12.5µ
ε (0.006mV/V).
Balance time: 2 seconds, typical.