Johnson Controls Humidity Sensors

Johnson Controls Humidity Control Module

The W351 Humidity Controller is an automatic reset electronic humidity control with an SPDT relay output and LED indication. Features field adjustable humidification/dehumidification mode, differential and setpoint. Can be surface or DIN-rail mounted.

Applications:

  • computer rooms
  • clean room
  • pharmaceutical manufacturing process
  • space humidity
  • humidity monitoring and display
  • high/low humidity alarm indication

Part # Range Differential  
W351AB-2 10-90% RH 2-10% RH Call... Add to Order

Johnson Controls Humidity Staging Module

The S351 Humidity Stage Module is used in conjunction with the W351 Humidity Control to add multiple staging capability. Up to five S351’s can be added to the W351 via the 5-pin plug-in connector.

Applications:

multiple staging for humidification/dehumidification of clean rooms, computer rooms, or space humidity control

Part # Output Differential Offset  
S351AA-1 SPDT, 10A 2-10% R.H. 2-30% Call... Add to Order

Johnson Controls Humidity Display Module

The S351 Humidity Stage Module is used in conjunction with the W351 Humidity Control to add multiple staging capability. Up to five S351’s can be added to the W351 via the 5-pin plug-in connector. Optional cables allow for remote display.

Part # Display Range Cable Length  
D351AA-1 10-90% R.H. - Call... Add to Order
WHA29A-600R - 3 ft. Call... Add to Order
WHA29A-603R - 25 ft. Call... Add to Order
WHA29A-604R - 50 ft. Call... Add to Order

Johnson Controls Humidity Sensors for W351

These Humidity Transmitters are used in conjunction with the W351 Humidity Control to provide on/off action for humidification and/or dehumidification equipment.

Part # Mount Descr  
HE-67N3-0N00P Duct Humidity Sensors for W351 Call... Add to Order
HE-67S3-0N0BT Mount Humidity Sensors for W352 Call... Add to Order

Johnson Controls TrueRH® Controllers

This new series of controller provides proportional humidity control. They are available in wall or duct mount versions. The patented All-Polymer‰ construction of the humidity sensor provides improved resistance to chemical corrosion. The output is jumper-selectable (RA or DA) and has an adjustable set point and proportional band.

Features
• TrueRH‚ circuitry and calibration techniques
• All-Polymer humidity sensor
• Jumper-selectable RA or DA and 0-10 or
• 6-9Vdc output

Power Supply: 14-30Vdc at 10mA or 30Vac

Control Action: Jumper-selectable, RA or DA (factory set for RA)

Output Range: Jumper-selectable, 0-10Vdc (factory set) or 6-9Vdc

Sensing Range: 0 to 100% RH, non-condensing

Set Point: Adjustable from 20-80% RH

Proportional Band: Adjustable from 2-20% RH

Operating Temperature: 32-122˚F

Part # TrueRH Controllers  
HC-6703-4N00W Wall Mount Humidity Controller Call... Add to Order
HC-6703-6N00P Duct Probe Humidity Controller Call... Add to Order

Johnson Controls TrueRH® Transmitters

These new transmitters utilize the same sensing technologies as the TrueRH‚ Controllers above. They are available in wall or duct mount versions, and have a typical output signal of 4-20 mA or 0-10 Vdc corresponding to 0-100% RH. Depending upon your need they are capable of measuring RH within either +2% or +3% accuracy.

Features

  • TrueRH‚ circuitry and calibration techniques
  • All-Polymer humidity sensor
  • Jumper-selectable 0-10 Vdc or
  • 4-20 mA output

Power Supply:
0-10 Vdc output
20-30 Vac, 50/60 Hz at 15 mA or
14-30 Vdc at 6 mA, Class 2

4-20 mA output
16-30 Vdc at 20 mA, Class 2

Output Range:
Jumper-selectable, 0-10 Vdc (factory set)
or 6-9 Vdc

Part # TrueRH Transmitters Accuracy  
HT-6702-0N00P Duct Mount Humidity Transmitter Duct Mount Humidity Transmitter Call... Add to Order
HT-6702-0N00W Wall Mount Humidity Transmitter Wall Mount Humidity Transmitter Call... Add to Order
HT-6703-0N00P Duct Mount Humidity Transmitter Duct Mount Humidity Transmitter Call... Add to Order
HT-6703-0N00W Wall Mount Humidity Transmitter Wall Mount Humidity Transmitter Call... Add to Order