• Multi-use, Wide Dynamic Range, Low Noise Signal Conditioner
• PE, ISOTRON® and Remote Charge Converter Inputs
• AC, Servo and DC Outputs
• Isolated Input
• Optional Filter or Integrator

SPECIFICATIONS

INPUTS

Piezoelectric (PE) Input
Single-ended with one side connected to input common.

• Input Charge: 3000 to 110 000 pC maximum depending on gain for instantaneous recovery

Isotron® Input
Single-ended with one side connected to input common.

• Constant Current Excitation Supply: Adjustable from 0.5 to 20 mA DC with control located on main circuit board, factory set at 4 mA
• Compliance Voltage: 21V maximum (AC + DC components)

Grounded Input Mode
The input common is connected to output common

Isolated Input Mode
The input common is isolated from output common by 50 Mohm minimum resistance in shunt with 600 pF maximum capacitance.

• Common Mode Voltage: 6V pk maximum to meet all specifications; 500V pk absolute maximum without damage

Test Input
This input allows the insertion of a signal in series (transformer coupled) with the cable and the PE transducer.

External Calibration Input
An external calibration signal may be applied to the charge converter input through an internal capacitor of 1000 pF ± 0.5%

OUTPUTS
All Outputs are short-circuit protected, single-ended with one side connected to output common.

AC Output

• Full Scale Voltage: 1V pk to 10V pk adjustable.  Linear to 12V pk.   Factory set at 10Vpk
• Output Current: 85 mA pk maximum
• Output DC Offset: 20 mV maximum, < 5mV typical

DC Output
This output is proportional to the peak average of the AC output signal.

• Full Scale Output Voltage: 10 VDC
• Output Current: 3 mA DC maximum
• Output Offset Voltage: 30 mV DC maximum < 5mV DC typical

Servo Output

• Output Sensitivity: Internally selectable 10mV/g, 100mV/g
• Linear Output: 12V pk maximum from 1Hz to 20KHz
• Output Current: 3mA pk maximum over specified frequency range
• DC Offset: 17mV maximum, < 5mV typical

TRANSFER CHARACTERISTICS

Gain Range: .03 to 1000

Full Scale Ranges

FREQUENCY RESPONSE
The gain is flat within its bandwidth.

Piezoelectric Mode

• Lower Cutoff Frequency, AC and DC Outputs:
  * Low frequency switch set at < 0.5 Hz; 0.5 Hz ± 0.1 Hz
  * Low frequency switch set at 2 Hz; 2.1 Hz ± 0.5 Hz
• Upper Cutoff Frequency, AC and DC Outputs
  The upper cutoff frequency depends on the full scale settling as follows:

  Full Scale	1	3	10	30	100	300	1k	3k	10k	30k
  -5% f (kHz) minimum	25	30	25	30	40	30	50	50	50	50

Remote Mode

• Lower Cutoff Frequency, AC and DC Outputs
  * -5% at 0.5 Hz maximum
  * -3 dB at 0.2 Hz maximum
• Upper Cutoff Frequency, AC and DC Outputs
  The upper cutoff frequency depends on the full scale settling as follows:

  Full Scale	1	3	10	30	100	300	1k	3k	10k	30k
  -5% f (kHz) minimum	24	24	24	24	30	35	70	70	70	70

POWER

Input Voltage - Selectable through a switch located on the main board

• 90 - 110 V rms
• 105 - 125 V rms
• 210 - 250 V rms

CONNECTORS

• PE Input: 10 - 32 Microdot®
• Remote Input and Outputs: BNC, UG, 1094/U or equivalent

OPTIONAL ACCESSORIES

• 35771 - Filter Card
• 35818 - Integrator Card