Technical Data - HMT120

HMT120 Quick Guide

Document code
M211247EN
Revision
E
Language
English (United States)
Product
HMT120
Document type
User guide
Table 1. Relative Humidity Measurement Specifications
Property Description/Value
Measurement range 0 ... 100 %RH
Accuracy (including non-linearity, hysteresis, and repeatability) at 0 … +40 °C (+32 … +104 °F):

0 … 90 %RH

90 … 100 %RH

±1.5 %RH

±2.5 %RH

Accuracy (including non-linearity, hysteresis, and repeatability) at -40 … 0 °C, +40 … +80 °C (-40 … 32 °F, 104 … 176 °F):

0 … 90 %RH

90 … 100 %RH

±3.0 %RH

±4.0 %RH

Factory calibration uncertainty at +20 °C (+68 °F):

0 … 90 %RH

90 … 100 %RH

±1.1 %RH

±1.8 %RH

Humidity sensor Vaisala HUMICAP® 180R
Table 2. Temperature Measurement Specifications
Property Description/Value
Measurement range -40 … +80 °C (-40 … 176 °F)
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751
Accuracy over temperature range:
At +15 … +25 °C (59 … 77 °F) ±0.2 °C (±0.36 °F)

At 0 … +15 °C and at +25 … +40 °C

(at 32 … 59 °F and at 77 … 104 °F)

±0.25 °C (±0.45 °F)

At -40 … +0 °C and at +40 … +80 °C

(at -40 … 32 °F and at 104 … 176 °F)

±0.4 °C (±0.72 °F)
Table 3. Operating Environment Specifications
Property Description/Value
Operating temperature of transmitter body, no display -40 … +60 °C (-40 … 140 °F)
Operating temperature of transmitter body with display -20 … +60 °C (-4 … 140 °F)
Operating temperature, HMP110 probe -40 … +80 °C (-40 … 176 °F)
Storage temperature -50 … +70 °C (-58 … 158 °F)
EMC compliance EN 61326-1 and EN 55022
Table 4. Inputs and Outputs
Property Description/Value
Current output signals 4 … 20 mA
External loop voltage

10 … 30 VDC (RL = 0 Ω)

20 … 30 VDC (RL < 500 Ω)

Max. additional error caused by the analog outputs after calibration at +20 °C (68 °F) ambient temperature ±0.1 % of FS output signal
Temperature dependence of the analog outputs ±0.005 % of FS output signal
Table 5. Mechanical Specifications
Property Description/Value
Material
Transmitter housing PBT plastic
Display window PC plastic
Probe body Stainless steel (AISI 316)
Probe grid filter Chrome coated ABS plastic
IP rating IP65
Connections
Inputs and outputs Screw terminals 0.5 … 1.5 mm2
Probe interface 4-pin M8 female panel connector
Probe cable lengths

3 m, 5 m, 10 m, 20 m: cables can be cascaded up to 50 m

Display (optional) LCD display without backlight
Weight (wall model, including probe) 270 g
Weight (10 m cable model) 540 g