Humidity Transmitter and Humidity/Temperature Transmitter - SHV11

Overview

Minco humidity and humidity plus temperature transmitters are designed using an advanced microprocessor. Digital signal processing allows these transmitters to precisely match the characteristics of the humidity sensor to a wide range of RH and temperature values found in the many applications the product serves.

The humidity sensor is comprised of an integrated circuit (IC) with a stable polymer element and platinum RTD that is used for temperature compensation. This sensor offers outstanding resistance to airborne contaminant and chemicals, and is protected by a sintered stainless steel filter which resists condensation.

  • Wall/Duct/OSA mounting configurations
  • Accuracies of 1% or 2% RH
  • Temperature compensated
  • Temperature output option
  • Two-point field calibration
  • NIST traceable calibrations
Applications

Building environmental control systems (HVAC), hospitals, food storage, warehouses, clean rooms, pharmaceutical, freezers, drying equipment, and emissions monitoring.

Specifications

Ambient Temperature:
Operating:
  Room: -10 to 150ºF (-23 to 65ºC), non-condensing.
  Wall/Duct/OSA: -10 to 185ºF (-23 to 85ºC), non-condensing.

Storage:
  Room: -58 to 150ºF (-50 to 65ºC), non-condensing.
  Wall/Duct/OSA: -58 to 185ºF (-50 to 85ºC), non-condensing.

Supply voltage: 9.5 to 35 VDC, non-polarized.
Voltage effect: ±001% of span/volt from 9.5 to 35 VDC.
Loop resistance: The maximum allowable resistance of the signal-carrying loop, including extension wires and load resistors, is given by this formula: Rloopmax = (Vsupply - 9.5)/0.02 AMPS. For example, if supply voltage is 24 VDC, the loop resistance must be less than 725 Ohm.
Adjustments: Zero and span field adjustments, non-interacting.
Time Constant: 50 seconds in slow moving air.
Connections: Screw terminals (22-14 AWG wire).
Weight:
Room: 0.19 lb (.084 kg).
Wall/Duct/OSA: 1.20 lb (0.55 kg).
Minimum output current: 3.5 mA
Maximum output current: 23 mA.

Humidity Transmitter AH429 and AH439

Output: 4-20 mA DC = 0% to 100% RH.
Sensing Element: Capacitive monolithic IC.
Accuracy: Includes temperature, linearity, hystersis, and repeatability.
±1% from 10% to 80% RH @ 25 to 35ºC or ±2% from 0% to 90% RH @ 25ºC
(±3% from 0% to 90% RH @ 15 to 50ºC)
(±5% from 0% to 90% RH @ 0 to 82ºC)
Time Constant: 50 seconds in slow moving air.

Specifications options for AH429 and AH439

AH429

Model number:
AH429 Humidity Transmitter

D Enclosure
D: Duct mount, 8" probe length
O: Outside Air/Wall mount, 4" probe length with shield, weather resistant enclosure
S: Space mount
W: Wall mount, 4" probe length, weather resistant enclosure
1 Output
4 to 20 mA DC
N10 Calibration accuracy (humidity transmitter)
N10: ±1% from 10% to 80% (25 to 35ºC) with NIST certificate
N20: ±2% from 0% to 90% (25 to 35ºC) with NIST certificate
S20: ±2% from 0% to 90% (25 to 35ºC)
T1 Sensing element cover (ommited on "S" space mount models)
T0= Sintered stainless steel; pressed on cover
T1= Sintered stainless steel; screw on cover
T2= Slotted stainless steel; screw on cover (NA on "O" outside air models)
AH429D1N10T1 = Sample part number

Temperature Transmitter AH439 only


Output: 4-20 mA DC over the specified temperature range.
Sensing element: 1000 Ī© platinum; 2 lead resistance thermometer, .00385 TCR.
Temperature: ±0.75% of span.
Calibration accuracy:
±.75% of Temptran span for 32 to 122ºF ambient.
±1.50% of Temptran span for -13 to 185ºF ambient.
Includes resistance thermometer tolerance, calibration accuracy, linearity, and ambient temperature effects.

Specification options for AH439 only

AH439 Model number:
AH439 Dual Humidity and Temperature Transmitter
D Enclosure
D: Duct mount, 8" probe length
O: Outside Air/Wall mount, 4" probe length with shield, weather resistant enclosure
S: Space mount
W: Wall mount, 4" probe length, weather resistant enclosure
1 Outputs
4 to 20 mA DC
N10 Calibration accuracy (humidity transmitter)
N10: ±1% from 10% to 80% (25 to 35ºC) with NIST certificate
N20: ±2% from 0% to 90% (25 to 35ºC) with NIST certificate
S20: ±2% from 0% to 90% (25 to 35ºC)
S Temperature transmitter range
EN: -20ºF to 140ºF
S: 0ºF to 100ºF
A: 20ºF to 120ºF
BI: 0ºF to 130ºF
KK: 30ºF to 180ºF
N: 32ºF to 122ºF
H: 40ºF to 90ºF
Consult factory for other possible rangesĀ 
T1 Sensing element cover (ommited on "S" space mount models)
T0= Sintered stainless steel; pressed on cover
T1= Sintered stainless steel; screw on cover
T2= Slotted stainless steel; screw on cover (NA on "O" outside air models)
AH439D1N10ST1 = Sample part number


Downloads

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