Get your Special Pricing!

Web Price:

$1,571.19

Availability: This product is currently available to purchase

Orders over $999 ship FREE*

*Free shipping applies within the continental US and weighing less than 50 lbs. Shipping and Returns Terms

Ship to Estimates

Are you from Chicago?

Yes / No

This item ships to

Change

Cancel

*shipping cost are estimated until you complete your order

The product is not cancelable or returnable unless found defective

Speak With a Technical Expert

Hours: 9am - 5pm CDT M-F

Call (847) 773-0645 Email Technical Expert

Documents: HHT-IT-LCD

Instruction Manual Series HHT Catalog Page More Info

HHT-IT-LCD | Intrinsically safe humidity/temperature transmitter with LCD display. | Dwyer

Intrinsically safe humidity/temperature transmitter with LCD display.

Brand: DwyerSKU: HHT-IT-LCD

The photo is for representation purposes only and may not be a photo of product being purchased.

Search products similar to HHT-IT-LCD

Jump to: Overview & Specifications Reviews

Overview Details for HHT-IT-LCD

See catalog product page for full listing

Intrinsically safe humidity/temperature transmitter with LCD display.

Series HHT Hazardous Area Humidity/Temperature Transmitter

Intrinsically Safe or Explosion-Proof Models

The Series HHT Hazardous Area Humidity/Temperature Transmitter takes accurate measurements in the harshest of environments. The explosion-proof model is offered with 4 to 20 mA output for humidity only. The intrinsically safe version is offered with 4 to 20 mA output for humidity and temperature, and do require an intrinsically safe barrier to meet hazardous area approvals.

Product Applications

Process monitoring
Offshore HVAC monitoring
Dust and grain handling

FM approved explosion-proof and intrinsically safe models
Integral LCD option
Dual temperature and relative humidity output models

Specifications

Series: HHT Hazardous Area Humidity/Temperature Transmitter
Category/Type: Air Quality
Type: Humidity / Temperature Transmitters
Series: HHT Hazardous Area Humidity/Temperature Transmitter
Relative Humidity Range: 0 to 100% RH.
Temperature Range: -40 to 140°F (-40 to 60°C).
Accuracy: ±2% 10 to 90% RH; ±0.9°F at 72°F (±0.3°C at 25°C).
Hysteresis: ±1%.
Repeatability: ±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: -40 to 140°F (-40 to 60°C).
Power Requirements: For instrinsically safe models HHT-IX; 9.5 to 28 VDC. For explosion-proof models HHT-EX; 16.5 to 28 VDC.
Output Signal: 4 to 20 mA; 2 channels for humidity/temperature models (loop power on RH).
Response Time: 15 s.
Electrical Connections: Screw terminal block.
Conduit Connection: 1/2" female NPT.
Drift: <1% RH/year.
RH Sensor: Capacitance polymer.
Temperature Sensor: Solid state band gap.
Housing Material: Aluminum.
Display: Optional 2 line alpha numeric; 8 characters/line. Temperature display is °F/°C selectable.
Display Resolution: RH: 0.1%; Temperature: 0.1°F (0.1°C).
Weight: 2 lb 8 oz (1134 g).
Enclosure Rating: NEMA 4X (IP66). Models HHT-EX: FM Explosion-proof; Class I Div. 1 Group B; C; D; Class II Div. 1 Group E; F; G; Class III Div. 1; Models HHT-IX: FM Instrinsically Safe; Class I Div. 1 Group A; B; C; D; Class II Div. 1 Group E; F; G; Class III Div. 1 T4.
Agency Approvals: FM; CE.