QFM3101

Siemens QFM3101 – 4-20mA duct RH transmitter, 2%
SKU: QFM3101
$240.76

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Details

Details

QFM3101 Duct Humidity Transmitter, 4-20mA Output, 2% RH

DC power only: 13.5-35 VDC.

Sensing tip is field-replaceable with AQF3150.

Handles condensing air; housing is sealed.

Mounting flange is included; the housing can also screw directly to the duct.

Key Features

  • Signal: 4-20mA humidity only
  • RH accuracy: +/-2%

Product Specifications

ManufacturerSiemens
ModelQFM3101
Product typeDuct relative humidity transmitter
SeriesQ-Series QFM31 (2%)
RH measuring range0-100% RH (linear to accuracy 0-95% RH)
RH accuracy+/-2%, 0-100% RH at 73 deg F
RH temperature dependencyUnder 0.05% RH per deg C
RH time constantAbout 20 s in moving air
RH sensing elementCapacitive
RH output4-20mA, 0-100% RH, linear
Power13.5 to 35 VDC
Power consumptionUnder 1 VA
Input impedance (4-20mA)Less than 500 ohms
Signal wire length24 AWG 164 ft; 18 AWG 492 ft; 16 AWG 984 ft
Wire terminals1 x 14 AWG or 2 x 16 AWG
Operating humidity0-100% RH, condensing
Enclosure ratingIP65 (NEMA 4)
Operating temp (housing)-40 to 158 deg F
Probe0.6 in. OD x 7.2 in. L
Housing dimensions3.1 in. L x 2.3 in. W x 1.5 in. D
Housing materialPolycarbonate, UL 94-5VB, plenum rated
FilterPTFE, 10 micron
Agency listingsUL 873; cUL C22.2 No. 24-93
Included itemsMounting flange
Replacement partsAQF3150 sensing tip, AQF3101 filter cap

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