PRODUCT DETAILS
  • PRODUCT:3-Way AFE (designed for use with the A4 air quality sensors)

  • MODEL:AFE
  • PRODUCT MANUFACTURER:Alphasense
  • DETAILS:
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DETAILS:
3-Way AFE (designed for use with the A4 air quality sensors),Features: 2 sensor, 3 sensor or 3 sensor plus PID versions are available. The AFEs are analogue potentiostat circuits with on-board power regulation and reference voltages: there is no digital circuitry on the AFEs.
DETAILS:
Name: 3-Way AFE
Pattern:  AFE 
Brand: Alphasense

Categories: Electrochemical Gas sensors

Information:3-Way AFE (designed for use with the A4 air quality sensors)
Features: 
(1)  2 sensor, 3 sensor or 3 sensor plus PID versions are available. The AFEs are analogue potentiostat circuits with on-board power regulation and reference voltages: there is no digital circuitry on the AFEs.
(2)  Power requirement: 650uA per channel; for example, 3 sensor AFE with sensors requires only 2 mA.
(3)  Although electrochemical sensors require + and – power supplies, the negative supply is generated on the AFE so you need only supply 3.4 to 6.4 V and analogue ground.
(4)  Each AFE includes a Pt1000 with separate circuit board, located next to the centre sensor for correct temperature compensation. Pt1000 output is 1mV/ºC. Offset needs room temperature software calibration.

 

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