HMT310紧凑型温湿度变送器

Six models for demanding applications:
- HMT311 for wall mounting
- HMT313 for duct mounting and tight spaces
- HMT314 for high pressures up to 100 bar and vacuum conditions
- HMT315 for high temperatures
- HMT317 for high humidity applications, warmed probe option
- HMT318 for pressurized pipelines up to 40 bar
Next-generation Vaisala HUMICAP® Sensor for excellent accuracy and stability
Full 0 ... 100 % RH measurement, temperature range up to +180 °C
Small size, easy to integrate
Insensitive to dust and most chemicals
NIST traceable

Technical Specifications

Relative humidity measurement
Measurement range ​0 ... 100 % RH
​Accuracy at +20 °C (68 °F) ​± 1.0 % RH (0 ... 90 % RH)
​ ​± 1.7 % RH (90 ... 100 % RH)
​ ​Vaisala HUMICAP® 180R
​ ​Vaisala HUMICAP® 180RC

Temperature measurement

​Measurement range ​
​depending on probe model ​-70 ... +180 °C (-94 ... +356 °F)

Electronics

​Two analog outputs, ​0...20 mA or 4...20 mA
​selectable and scalable ​
​Serial output ​RS-232C
​Operating voltage ​12 ... 35 VDC, 24 VDC
​Power consumption ​30 mA with RS-232

General

​Operating temperature range ​-40 ...+60°C (-40...+140°F)
​for electronics ​
​Operating pressure ​
​HMT314 ​0...100 bar
​HMT318 ​0...40 bar
​HMT315, HMT317 ​vapor tight
​Storage temperature range ​-55...+80°C (-67...+176°F)
​Transmitter housing material ​G-AlSi10Mg
​Transmitter base material ​ABS/PC
​Housing classification ​IP65
​Sensor protection ​
​ ​PPS grid with stainless steel net
​ ​PPS grid, Sintered filter

​Membrane stainless steel filter