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Dwyer HHT-EU-LCD | Explosion-Proof Humidity Transmitter | 4-20 mA, ±2% RH, LCD
Adding an LCD to the explosion-proof design, the Dwyer HHT-EU-LCD transmits humidity as a 4-20 mA signal and shows readings locally in hazardous locations. The two-line display shows RH to 0.1% and temperature in °F or °C, with a supply of 16.5 to 28 VDC.
- FM approved explosion-proof, Class I, II and III Div. 1
- RH accuracy ±2% (10-90% RH)
- Polymer capacitance RH sensor with 15 s response time
- Aluminium enclosure rated NEMA 4X (IP66)
- Two-line LCD, 8 characters per line, °F/°C selectable
- Specifications
- Features
- Downloads
| Part Number | HHT-EU-LCD |
| Brand | Dwyer |
| Protection | Explosion-proof |
| Measures | Relative humidity |
| Output | 4-20 mA (humidity) |
| Power | 16.5 to 28 VDC |
| Display | 2-line alphanumeric LCD, 8 characters/line, °F/°C selectable |
| RH Range | 0 to 100% RH |
| Accuracy | ±2% (10 to 90% RH) |
| Sensor | Capacitance polymer |
| Enclosure | Aluminium, NEMA 4X (IP66) |
| Hazardous Area Rating | FM explosion-proof Class I Div. 1 Groups B, C, D; Class II Div. 1 Groups E, F, G; Class III Div. 1 |
| Operating Temperature | -40 to 140°F (-40 to 60°C) |
| Approvals | FM, CE |
- Explosion-proof and fundamentally safe models with FM approval.
- LCD option integrated.
- Two-way output models for relative humidity and temperature.
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