Series WHT Weather-Resistant Humidity/Temperature Transmitter

Compact Housing, Sintered Filter

The compact Series WHT Humidity/Temperature Transmitter is designed to withstand the elements. A removable sintered filter protects the polymer capacitance sensor from solid objects that may come in contact with the transmitter. The transmitter is available with 4 to 20 mA or 0 to 10 VDC output signals for both temperature and humidity. This transmitter is ideal for measuring outside air temperature and humidity levels for air handling economizer applications.

Product Applications

Air handling economizers
Air environment monitoring in agriculture or livestock cultivation houses

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Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

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Model	Description	Usually Ships*	Price	Order
WHT-310 Ships: Same Day Price: $142.00	Water-resistant humidity transmitter with sintered filter, 3% accuracy, 4-20 mA humidity output.	Same Day*	$142.00	Order
WHT-311 Ships: Same Day Price: $155.75	Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 4-20 mA humidity and temperature output.	Same Day*	$155.75	Order
WHT-31A Ships: Less Than 1 Week Price: $155.75	Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 4-20 mA humidity output and 10K Ω Type III, curve A temperature output.	Less Than 1 Week*	$155.75	Order
WHT-320 Ships: Less Than 1 Week Price: $142.00	Water-resistant humidity transmitter with sintered filter, 3% accuracy, 0-10 VDC humidity output.	Less Than 1 Week*	$142.00	Order
WHT-322 Ships: Same Day Price: $155.75	Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 0-10 VDC humidity and temperature output.	Same Day*	$155.75	Order
WHT-32A Ships: Less Than 1 Week Price: $155.75	Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 0-10 VDC humidity output and 10K Ω Type III, curve A temperature output.	Less Than 1 Week*	$155.75	Order
WHT-330 Ships: Less Than 1 Week Price: $142.00	Water-resistant humidity transmitter with sintered filter, 3% accuracy, 0-5 VDC humidity output.	Less Than 1 Week*	$142.00	Order
WHT-333 Ships: Less Than 1 Week Price: $155.75	Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 0-5 VDC humidity and temperature output.	Less Than 1 Week*	$155.75	Order

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Specifications

Relative Humidity Range:: 0 to 100% RH.
Temperature Range:: -40 to 140°F (-40 to 60°C).
Sensor Accuracy, RH:: ±2% 20 to 80% RH, ±3% @ 10 to 20%, 80 to 90% RH.
Accuracy, Temp Models with 4 to 20 mA Temp. Output:: ±0.9°F @ 72°F (±0.3°C @ 25°C).
Accuracy, Temp Models with Passive Thermistor Temp Sensor:: ±0.36°F @ 77°F (±0.2°C @ 25°C).
Hysteresis, RH:: ±1%.
Repeatability, RH:: ±0.1% typical.
Temperature Limits:: -40 to 140°F (-40 to 60°C).
Storage Temperature:: -40 to 176°F (-40 to 80°C).
Compensated Temperature Range, RH:: -4 to 140°F (-20 to 60°C).
Power Requirements:: 4-20 mA loop powered models: 10-35 VDC; 0-10 V output models: 15-35 VDC or 15-29 VAC; 0-5 V output models: 10-35 VDC or 10-29 VAC.
Output Signal:: 4-20 mA loop powered models: 4-20 mA; 0-10 V output models: 0-10 V @ 5 mA max; 0-5 V output models: 0-5 V @ 5 mA max.
Response Time:: 15 s.
Electrical Connections:: Removable screw terminal block.
Drift:: <1% RH/year.
RH Sensor:: Capacitance polymer.
Temperature Sensor:: 4 to 20 mA output, solid state band gap. Passive output: 10K @ 25°C thermistor (Dwyer curve A).
Enclosure:: ABS.
Enclosure Rating:: Designed to meet NEMA 3S (IP54).
Weight:: 0.3 oz (8.5 g).
Agency Approvals:: CE.

Features

RH or RH and temperature outputs
Compact NEMA 3S construction

Model Chart

EXAMPLE	WHT	2	1	1	Series WHT-211 Humidity/Temperature Transmitter, 2% accuracy, current 4-20 mA RH output, current 4-20 mA temperature output.
SERIES	WHT				Humidity/Temperature Transmitter
ACCURACY		2 3			2% 3%
RH OUTPUT			1 2 3		Current 4-20 mA Output Voltage 0-10 VDC Output Voltage 0-5 VDC Output
TEMPERATURE OUTPUT				0 1 2 3 A B C D E	None Current 4-20 mA Output Voltage 0-10 VDC Output Voltage 0-5 VDC Output 10K Ohm TC Curve A 10K Ohm TC Curve B 3K Ohm TC Curve C 100 Ohm RTD Curve D 1K Ohm RTD Curve E

Product Literature

Manuals

Instruction Manual

Catalog Pages

Series WHT Catalog Page

Product Data Sheet

Approvals

Drawings

Questions

Question

How many wires do the RTD versions of the TE Series Temperature Sensors have?

Answer

The TE Series Temperature Sensors are all two-wire sensors for both the thermistors and RTD’s.

Related

Series TE

Series TE-A

Series TE-OND/TE-RND/TE-OSA

Series WHT

Series TE-WSS

Question

I'm looking for a dual temp. and humidity gauge for an 8" duct. I'm wanting to remote read the temp and humidity on the incoming and outgoing air to an ERV unit. The RHP-3M11-LCD was recommended to me, however, it is a direct read. What would be the correct instrument to remote read the temperature and humidity from a distance of 8 feet. The 8" duct is in the attic and I want to read the result in the down-stair hall. I don't want to record nor program the unit, just read the performance.

Answer

The sensor recommended would be the best option we have for sensing temperature and relative humidity for your application. We do not have any options with a remote display that could stretch as far as you are asking, nor are there any on the market to my knowledge. In every case, you would need to utilize a process output, in this case 4-20 mA, to transmit the readings to a remote display(s) which would accept the process signal(s). If you are just looking for a remote readout to go with the RHP sensor with no control functionality, then you could look at one of our panel meters, possibly the SPPM, DPMA, DPMW, or DPMP & DPML series panel meters. For assistance selecting an appropriate panel meter, please contact our technical support group at 219-879-8000.

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