Vatell AMP-10

Sensor Amplifier for HFM 6+7s with 5 gain settings

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Key Features
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For use with HFM-6 and HFM-7 series of Heat Flux sensors - 5 gain settings


  • Continous operation
  • Captures the full range and bandwidth of heat flux signals
  • AC Powered

The rest of the specification of the AMP10 is the same as the AMP-6 and AMP-12.

Principle of Operation

The AMP-10 Signal Conditioning Amplifier is designed for use with the HFM series. Heat Flux signals of the transducer are amplified by a low noise, wide-band differential amplifier whose gain may be set at one of five discrete values between 1 and 5000. The Resistance Temperature Sensor (RTS) is driven by a constant current of 100 mA. The resulting voltage is amplified by a low noise differential amplifier whose gain may be set at one of four discrete values between 1 and 500.


All signal connections are at the rear panel of the amplifier. A four-pin female Lemo connector is provided for leads from the Heat Flux Microsensor. Male connectors are provided for amplified heat flux and temperature output signals. The amplifier has a power switch on the front panel. Gains for heat flux and temperature signals are selected by multiple position switches. Ten-turn potentiometers are provided for screwdriver adjustment of the heat flux amplifier offset and setting of the temperature reference point. A battery test switch, state of charge, and charging indicator allow checking of the battery state and monitoring of the recharge process.



  • Height: 1.7 inches
  • Width: 7.5 inches
  • Depth: 11 inches
  • Weight: 46oz
Heat Flux Channels Temperature (RTS) Channel
Gain Settings 1, 100, 500, 1000, 5000 1, 100, 200, 500
Gain Accuracy (%)
Gain = 1 +/-0.6% +/-0.6%
Gain = 100 +/-1.5% +/-1.5%
Gain = 200, 500 +/-1.5% +/-1.5%
Gain = 1000 +/-2.1%
Gain = 5000 +/-3.6%
Gain = 1 1 MHz 1 MHz
Gain = 100 150 kHz 150 kHz
Gain = 200 100 kHz
Gain = 500 50 kHz 50 kHz?
Gain = 1000 25 kHz
Gain = 5000 5 kHz
Input Impedance 1000 MOhms 1000 MOhms
Input Noise 0.2 uV 0.2 uV
Full Scale Output 6 Volts 6 Volts
  • AMP-10
  • AMP-10 front
    AMP-10 front
  • AMP-10 back
    AMP-10 back
  • AMP-10 Back
    AMP-10 Back
  • AMP-10 top
    AMP-10 top
  • AMP-10 bottom
    AMP-10 bottom
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