Datasheet

2300 System
Vishay Micro-Measurements
Document Number: 11255 [e-mail] www.vishaymg.com
Revision 18-Oct-06 25
Signal Conditioning Amplifier
Manual vernier balance range: 100µε (0.050mV/V).
Interaction: essentially independent of excitation and
amplifier gain.
Storage: non-volatile digital storage without line power for
up to two years.
SHUNT CALIBRATION:
Circuit (two-level, dual polarity): Single-shunt (for
stress analysis) across any bridge arm, including dummy
gage.
Double-shunt (for transducers) across opposite bridge
arms.
Provision for four dedicated leads to shunt external arms.
CAL circuit selected by switches on p.c. board.
Standard factory-installed resistors (±0.1%) simulate:
±200 and ±1000µ
ε @ GF=2 across dummy half bridge;
±1000µ
ε @ GF=2 across dummy gage (120Ω
and 350Ω).
±1mV/V (double shunt) for 350Ω transducer
Remote-operation relays (Option Y): four relays (plus
remote-reset relay for bridge balance and relay for
excitation on/off). Each relay requires 10mA @ 5Vdc,
except excitation on/off 25mA.
AMPLIFIER:
Gain: 1 to 11 000 continuously variable. Direct reading,
±1% max. 10-turn counting knob (X1 to X11) plus decade
multiplier (X1 to X1000)
Frequency response, all gains full output:
dc coupled: dc to 145kHz, -3dB max.
dc to 60kHz, -0.5dB max.
ac coupled: 1.7Hz typ. to 150kHz, -3dB max.
Frequency response versus gain, full output:
GAIN -0.5dB -3dB
1-11 130kHz 300kHz
10-110 110kHz 250kHz
100-1100 80kHz 160kHz
1000-11000 76kHz 155kHz
Slew rate: 7.8V/μs typical
Input impedance: 100mΩ, min, differential or
common-mode, including bridge balance circuit.
Bias current: ±40nA, typical max., each input.
Source impedance: 0 to 1000Ω each input.
Common-mode voltage: ±10V.
Common-mode rejection (gain over X100):
Shorted input: 100dB, min, at dc to 60Hz;
90dB, min, dc to 1kHz;
350Ω balanced input: 90dB, typical, dc to 1kHz.
Stability (gain over X100):
±2µV/°C, max, RTI (referred to input).
Noise (gain over X100, all outputs):
0.01 to 10Hz: 1µV p-p RTI.
0.5 to 125kHz: 6µVrms, max, RTI.
FILTER:
Characteristic:
Low-pass active six-pole Butterworth standard.
Frequencies (-3 ±1dB): 10, 100, 1000 and 10 000Hz and
wide-band.
Outputs filtered: either one or both (switch-selected on
printed circuit board).
AMPLIFIER OUTPUTS:
Standard output: ±10V @ 5mA, min.
Slew Rate: 7.8V/μs (typical)
Low-level output: ±1.414V (1Vrms) @ 5mA, min.
Linearity @ dc: ±0.02%.
Either output can be short-circuited with no effect on the
other.
PLAYBACK:
Input: ±1.414V full scale; input impedance 20kΩ.
Gain: X1 to low-level output; X7.07 to standard output.
Filter selection: As specified above.
Outputs: Both as specified above.
OPERATING ENVIRONMENT:
Temperature: 0° to +50°C.
Humidity: 10 to 90%, noncondensing.
POWER:
105 to 125V or 210 to 250V (switch-selected), 50/60Hz,
10 watts, max.
Keep-alive supply (for bridge balance): Lithium 3.6V,
1/2AA or equal. Shelf life approximately two years.
SIZE & WEIGHT:
Panel: 8.75 H x 1.706 W in (222.2 x 43.3mm).
Case depth behind panel: 15.9 in (404mm).
Weight: 6lb (2.7kg).