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Environmental/Process Air Transmitters

HX80A Series

Environmental/Process Air Transmitters | HX80A Series

Environmental/Process Air Transmitters

£860.37 HX85A

  • 316 SS Housing
  • ±1% RH Accuracy
  • ±0.5°C (1.0°F) Temperature Accuracy
  • High Temperature [120°C (248°F)]
  • Removable Stainless Steel Sensor Cap
  • RS232 Standard
  • Adjustable ¾ NPT Fitting
Relative Humidity Measurement Instruments - View related products


The HX80A Series is a family of humidity probes that offer a variety of measurement parameters with precision accuracy: relative humidity and temperature, with dew point or pressure. The probe is easily adaptable for most applications via a 3/4 NPT fitting that can be adjusted to any desired position, including high temperature and high pressure conditions. This remote type transmitter comes standard with a 1.8 m (6'') cable and is ideally suited for many different applications such as environmental chambers, compressed air, and industrial applications. Models offer a stainless steel probe with a removable sinter stainless steel filter and RS232 (which allows for reading of data, scaling output, and for HX86A type units, changing the digital display and setting the alarms). All models have 3 outputs, with output 1 scaled for 0 to 100% RH, output 2 scaled for -20 to 120°C (-4 to 248°F), and output 3 determined by the model number. Output 3 for HX85A and HX86A is -60 to 40°C (-76 to 104°F) dew point, for HX85BA and HX86BA is 750 to 1100 mb, and for HX85PA and HX86PA is 0 to 200 psia. RH measurement range is 5 to 95% with an accuracy of ±1%. temperature accuracy is ±0.5°C (33°F). HX85A (probe only) models (HX85A, HX85BA, HX85PA) offer 0 to 10V signals on the outputs via a 1.8 m (6'') cable. The HX86A models (HX86A, HX86BA, HX86PA) include a display box attached to the end of the cable from the probe, and offers a 2 line digital display, 2 alarms, three 4 to 20 mA output signals, and an RS232 serial output.

RH Accuracy: ±1% RH
RH Measurement Range: 5 to 95%
Time Constant: <15 sec, air flow dependent (for 66.6% response)
Temp Accuracy: ±0.5°C (1.0°F)
Temp Measurement Range: -20 to 120°C (-4 to 248°F)
Pressure Rating: 200 psi(13.8 bar) max
Serial Output: RS232C (bi-directional) to DTE device, 19.2 kilo baud, 8 bits data, 1 stop bit, no parity
Power Requirements: 18 to 30 Vdc unregulated, 50 mA max
Sensor Dimensions:
    Probe: 19 Dia. x 203 mm (¾ x 8")
    Cable Length: 1.8 m (6'')
Filter: Sinter stainless steel (removable and cleanable)
Probe Material: Stainless steel
Fitting: Adjustable ¾ NPT
Weight: 0.9 kg (2 lb)
Display Box (HX86A, HX86BA, HX86PA Only):
    Dimensions: 130 x 94 x 56 mm (5.1 x 3.7 x 2.2")
    Mounting Centers: 115 x 79 mm (4.52 x 3.11")
    Digital Display: LCD, 2-line,br> Electrical Analog Outputs (HX85A, HX85BA, HX85PA Only): 0 to 10 Vdc (x3) @ 10 mA max
Electrical Outputs (HX86A, HX86BA, HX86PA Only):
    Analog Outputs: 4 to 20 mA (x3) into 500 O max
    Alarm Relay (x2): Form A (SPST, NO) rated at 3 A/250 Vac
Barometric Pressure (HX85BA, HX86BA Only):
    Range*: 750 to 1100 mb
    Accuracy: ±5 mb
* Although the unit is scaled 750 to 1100 mb, the unit actual measurement range is 10 to 1100 mb and can be reprogrammed in the field if the range needs to be expanded.
High Pressure (HX85PA, HX86PA Only):
    Range: 0 to 200 psia
    Accuracy: ±0.75 psi
Place Order(Specify Model Number)
Part Number/ Desc.
Availability: 2 weeks
RH/temperature/dew point transmitter, 0 to 10 Vdc outputs
Availability: In Stock
RH/temperature/barometric pressure transmitter, 0 to 10 Vdc outputs
Consult Sales  
RH/temperature/pressure transmitter, 0 to 10 Vdc outputs
Availability: 2 weeks
RH/temperature/dew point transmitter with remote display and 2 alarms, 4 to 20 mA outputs
Availability: 18 weeks
RH/temperature/barometric transmitter with remote display and 2 alarms, 4 to 20 mA outputs
Consult Sales  
RH/temperature/pressure transmitter with remote display and 2 alarms, 4 to 20 mA outputs
Availability: 18 weeks
Remote electronics module with two-line LCD digital display, three 4 to 20 mA analog outputs, RS232C, and 2 programmable alarm relays; this display module can be added to existing probes (HX86A series) in the field
Availability: 2 weeks
sensor module for RH/temperature
Availability: 11 weeks
sensor module for RH/temperature/pressure
Availability: 4 weeks
sensor module for RH/temperature/barometric pressure
Availability: 4 weeks
chamber with inlet and outlet fittings
All amounts shown in EUR, GBP, or USD
Note: Come complete with operator’s manual (on CD) and NIST certificate.
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