| 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) |
| Sensor |
Vaisala HUMICAP® 180 |
| Temperature measurement |
Measurement range
HMT331
HMT333
HMT334/335/337/338
|
-40 ... +60 °C
-40 ... +80 °C
-70 ... +180 °C
|
| Accuracy at +20 °C (68 °F) |
± 0.2 °C |
| Sensor |
Pt100 RTD 1/3 Class B IEC 751 |
| Other variables available (depends on model) |
| Dewpoint, temperature, mixing ratio, absolute humidity, wet bulb temperature, enthalpy, water vapor pressure. |
| Operating environment |
| Temperature
for probe
for transmitter body
with display
|
same as measurement ranges
-40 ...+ 60 °C (-40 ... +140 °F)
0 ...+ 60 °C (+32 ... +140 °F)
|
Pressure
HMT334
HMT338
HMT333/335/337 |
0 ... 10 MPa (0 ... 100 bar)
0 ... 4 MPa (0 ... 40 bar)
vapor tight
|
| Inputs and outputs |
Operating voltage
with optional power supply module |
10 ... 35 VDC, 24 VAC
100 ... 240 VAC 50/60 Hz |
Power consumption @ 20 °C (U in 24 VDC)
RS-232
U out 2 x 0 ... 1 V/ 0 ... 5 V/ 0... 10 V
I out 2 x 0 ... 20 mA V |
max. 25 mA
max. 25 mA
max. 60 mA |
| Analog outputs |
0 ... 20 mA, 4 ... 20 mA, 0 ... 1 V, 0 ... 5 V, 0 ... 10 V |
| Digital outputs |
RS-232, RS-485 (optional) |
| Menu languages |
English, French, Spanish, German, Japanese, Swedish, Finnish |
| Mechanical |
| Probe cable diameter
HMT333
other probes
|
6.0 mm
5.5 mm
|
| Material (housing) |
G-AlSi 10 Mg (DIN 1725) |
| Housing classification |
IP65 (NEMA 4) |
HMT 330
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