Dwyer德威尔 WHT-310 WHT-311 WHT-320 WHT-322 全天候温湿度变送器
Dwyer德威尔 WHT-310 WHT-311 WHT-320 WHT-322 全天候温湿度变送器
Relative Humidity Range: 0 to 100% RH.
Temperature Range: -40 to 140°F (-40 to 60°C).
Accuracy, RH: ±3% 20 to 80% RH, ±4% @ 10 to 20%, 80 to 90%.
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: ±0.4°F @ 77°F (±0.22°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).
4-20 mA Loop Powered Models: Power Requirements: 10 to 35 VDC; Output Signal: 4 to 20 mA.
0 to 10 V Output Models: Power Requirements: 15 to 35 VDC or 15 to 29 VAC; Output Signal: 0 to 10 V @ 5 mA max.
0 to 5 V Output Models: Power Requirements: 10 to 35 VDC or 10 to 29 VAC; Output Signal: 0 to 5 V @ 5 mA max.
Response Time: 15 seconds.
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.
