Charge Amplifiers

DESIGNED FOR USE WITH HIGH TEMPERATURE CHARGE PRESSURE AND VIBRATION SENSORS

Charge amplifiers convert the high impedance output signal (pC) of charge-mode sensor into a low impedance output signal (mV) and are capable of operating with high-temperature (+500 °F) charge-mode sensors’ lower insulation resistance values.  There are two types:

  • Single-Ended Charge Amplifiers: Single-ended charge amplifiers are designed to operate in conjunction single-ended, charge-mode accelerometers and pressure sensors.  Single-ended sensors use coaxial connectors and cable where the connector pin/ cable conductor carries the signal and the connector shell/ cable shield carries the ground.  Single-ended sensor chains depend on shielding and a good ground to reject common-mode noise.
  • Differential Charge Amplifiers: As a charge amplifier designed to operate with differential sensors, these models can accept the simultaneous positive and negative signals output by the differential sensor that are equal in amplitude but opposite in phase.Differential sensors output these simultaneous signals on the premise that common-mode noise will affect both signals equally.The charge amplifier can effectively identify and reject the noise while still passing though the valid signal.This methodology lessens the system’s dependence on a good ground for noise rejection.

APPLICATIONS

  • Gas Turbine Bearing Health Monitoring
  • Commissioning of Nuclear Power Plants
  • Condition Monitoring of Power Generation Turbines
  • Machinery Protection in Extremely High Temperature Environments
  • Turbine Health Management
  • Structural Damages on Gas Turbines
  • Combustion Dynamics Monitoring

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Model Number

Model:422E35

  • Sensitivity: (Charge Conversion)(±2%)1 mV/pC
  • Sensitivity: (Charge Conversion)(±2%)1 mV/pC
  • Output Voltage: (at specified measurement range)±2.5 V
  • Output Voltage: (at specified measurement range)±2.5 V
  • Temperature Range: (Operating)-65 to +250 °F
  • Temperature Range: (Operating)-54 to +121 °C
  • Housing Material: Stainless Steel
  • Housing Material: Stainless Steel
$320.00 USD
(Pricing valid in US only)
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Model Number

Model:422E36

  • Sensitivity: (Charge Conversion)(±2%)10 mV/pC
  • Sensitivity: (Charge Conversion)(±2%)10 mV/pC
  • Output Voltage: (at specified measurement range)±2.5 V
  • Output Voltage: (at specified measurement range)±2.5 V
  • Temperature Range: (Operating)-65 to +250 °F
  • Temperature Range: (Operating)-54 to +121 °C
  • Housing Material: Stainless Steel
  • Housing Material: Stainless Steel
$320.00 USD
(Pricing valid in US only)
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Model Number

Model:422E38

  • Sensitivity: (Charge Conversion)(±2%)0.1 mV/pC
  • Sensitivity: (Charge Conversion)(±2%)0.1 mV/pC
  • Output Voltage: (at specified measurement range)±2.5 V
  • Output Voltage: (at specified measurement range)±2.5 V
  • Temperature Range: (Operating)-65 to +250 °F
  • Temperature Range: (Operating)-54 to +121 °C
  • Housing Material: Stainless Steel
  • Housing Material: Stainless Steel
$320.00 USD
(Pricing valid in US only)
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Model Number

Model:422E65/A

  • Sensitivity: (Charge Conversion)(±2%)1 mV/pC
  • Sensitivity: (Charge Conversion)(±2%)1 mV/pC
  • Output Voltage: ±5 V
  • Output Voltage: ±5 V
  • Temperature Range: (Operating)-65 to +250 °F
  • Temperature Range: (Operating)-54 to +121 °C
  • Housing Material: Stainless Steel
  • Housing Material: Stainless Steel
$387.00 USD
(Pricing valid in US only)
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Model Number

Model:422E66/A

  • Sensitivity: (Charge Conversion)(±2%)10 mV/pC
  • Sensitivity: (Charge Conversion)(±2%)10 mV/pC
  • Output Voltage: ±5 V
  • Output Voltage: ±5 V
  • Temperature Range: (Operating)-65 to +250 °F
  • Temperature Range: (Operating)-54 to +121 °C
  • Housing Material: Stainless Steel
  • Housing Material: Stainless Steel
$387.00 USD
(Pricing valid in US only)
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Model Number

Model:422M182

  • Sensitivity: (Charge Conversion)(±5%)4 mV/pC
  • Sensitivity: (Charge Conversion)(±5%)4 mV/pC
  • Output Voltage: (at specified measurement range)±5 Vpk
  • Output Voltage: (at specified measurement range)±5 Vpk
  • Temperature Range: (Operating)-60 to +185 °F
  • Temperature Range: (Operating)-51 to +85 °C
  • Housing Material: Aluminum
  • Housing Material: Aluminum
$1010.00 USD
(Pricing valid in US only)
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Model Number

Model:EX682A40

  • Sensitivity: (+/-5%)10 mV/pC
  • Sensitivity: (+/-5%)10 mV/pC
  • Output Voltage: +/-2.5 Vpk
  • Output Voltage: +/-2.5 Vpk
  • Temperature Range: -40 to +176 °F
  • Temperature Range: -40 to 80 °C
$1125.00 USD
(Pricing valid in US only)
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