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HHT-IU | Intrinsically safe humidity transmitter. | Dwyer Instruments

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Overview

Details for HHT-IU

Dwyer Instruments HHT-IU Intrinsically Safe Xmtr Dwyer Instruments HHT-IU is an intrinsically safe transmitter designed for hazardous environments. With its ODIS (Optical Data Interface System), it provides safe and reliable data transmission. Key Features: * Intrinsically safe for Class I, Division 1, Groups A-D and Class II, Division 1, Groups E-G hazardous locations * ODIS (Optical Data Interface System) for non-contact digital communications * Rugged construction for harsh industrial environments * Compatible with HHT Series handheld meters * Easy-to-use interface and intuitive programming Benefits: * Ensures safety in hazardous areas by eliminating the risk of electrical sparks * Facilitates remote monitoring and data retrieval * Withstands extreme temperatures and harsh conditions * Complements HHT handheld meters for comprehensive monitoring capabilities * Simplifies setup and operation Applications: * Monitoring pressure, temperature, and other parameters in hazardous environments * Industrial plants and facilities with explosive atmospheres * Petrochemical and chemical industries * Oil and gas exploration and production Contact our HVAC supply store today for the best prices and fast shipping on Dwyer Instruments products. Upgrade your hazardous area monitoring with the HHT-IU intrinsically safe transmitter!

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
freeship
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.