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Right Choice. Right Price. Right NOW.
Take accurate measurements in the harshest environments with this explosion-proof humidity transmitter that features a 4 to 20 mA output for humidity and an LCD. Suitable for process monitoring, offshore HVAC monitoring, and dust and grain handling.
Take accurate measurements in the harshest environments with this explosion-proof humidity transmitter that features a 4 to 20 mA output for humidity and an LCD. Suitable for process monitoring, offshore HVAC monitoring, and dust and grain handling.
Features
Applications
| Relative Humidity | 0 to 100% RH |
| Accuracy | ±2% 10 to 90% RH, ±0.9 at 72°F (±0.3 at 25°C) |
| Hysteresis | ±1% |
| Repeatability | ±0.1% typical |
| Temperature | Limits: -40 to 140°F (-40 to 60°C) Storage: -40 to 176°F (-40 to 80°C) Compensated: -40 to 140°F (-40 to 60°C) |
| Output Signal | 4 to 20 mA |
| Response Time | 15 seconds |
| Connections | Electrical: Screw terminal block Conduit: ½ female NPT |
| Drift | <1% RH/year |
| RH Sensor | Capacitance polymer |
| Power Requirements | For explosion-proof models HHT-EX, 16.5 to 28 V DC |
| Housing Material | Aluminum |
| Enclosure Rating | NEMA 4X (IP66). Models HHT-EX: FM explosion- proof, class I division 1 group B, C, D, class II division 1 group E, F, G, class III division 1 |
| Agency Approvals | CE, FM |
| Dimensions | 13.7 x 3.9 x 4.28" (347.98 x 99.22 x 108.74) |
| Weight | 2.5 lbs (1134 g) |
Click on a category to view a selection of compatible accessories with the Dwyer HHT Hazardous Area Humidity Transmitter with LCD.
| Relative Humidity | 0 to 100% RH |
| Accuracy | ±2% 10 to 90% RH, ±0.9 at 72°F (±0.3 at 25°C) |
| Hysteresis | ±1% |
| Repeatability | ±0.1% typical |
| Temperature | Limits: -40 to 140°F (-40 to 60°C) Storage: -40 to 176°F (-40 to 80°C) Compensated: -40 to 140°F (-40 to 60°C) |
| Output Signal | 4 to 20 mA |
| Response Time | 15 seconds |
| Connections | Electrical: Screw terminal block Conduit: ½ female NPT |
| Drift | <1% RH/year |
| RH Sensor | Capacitance polymer |
| Power Requirements | For explosion-proof models HHT-EX, 16.5 to 28 V DC |
| Housing Material | Aluminum |
| Enclosure Rating | NEMA 4X (IP66). Models HHT-EX: FM explosion- proof, class I division 1 group B, C, D, class II division 1 group E, F, G, class III division 1 |
| Agency Approvals | CE, FM |
| Dimensions | 13.7 x 3.9 x 4.28" (347.98 x 99.22 x 108.74) |
| Weight | 2.5 lbs (1134 g) |
Click on a category to view a selection of compatible accessories with the Dwyer HHT Hazardous Area Humidity Transmitter with LCD.
