Relative Humidity

Measurement range

0 … 100 %RH

Accuracy 1) 2)

at +15 … +25 °C (59 … +77 °F)

±1 %RH (0 … 90 %)

±1.7 %RH (90 … 100 %RH)

at −20 … +40 °C (−4 … +104 °F)

±(1.0 + 0.008 × reading) %RH

at −40 … +180 °C (−40 … +356 °F)

±(1.5 + 0.015 × reading) %RH

Factory calibration uncertainty 3) (+20 °C)

±0.6 %RH (0 … 40 %RH)
±1.0 %RH (40 … 97 %RH)

Humidity sensor types

HUMICAP 180
HUMICAP 180C
HUMICAP 180R
HUMICAP 180RC
HUMICAP 180VC

Response time (90 %) with HUMICAPâ 180 or 180C sensor at +20 °C (+68 °F)

in still air

with grid filter

8 s

with grid + steel netting filter

20 s

with sintered filter

40 s

Response time (90 %) with HUMICAPâ 180R, 180RC, or 180VC sensor at +20 °C (+68 °F) in 0.1 m/s air flow

with grid filter

17 s

with grid + steel netting filter

50 s

with sintered filter

60 s

Temperature

Accuracy at +20 °C (+68 °F)

± 0.2 °C (± 0.36 °F)

Cable bushing

M20 × 1.5 for cable diameter
8 … 11 mm (0.31 … 0.43 in)

Conduit fitting

1/2" NPT

User cable connector (optional)

M12 8-pin male

Option 1

Female plug with 5 m (16.4 ft) black cable

Option 2

Female plug with screw terminals

Housing material

G-AlSi 10 Mg (DIN1725)

IP rating

IP66
IP65 (NEMA4X) with local display

Weight

1.0 … 3.0 kg (2.2 … 6.6 lb) depending on selected model and options

Standard probe cable lengths

2 m, 5 m, or 10 m (6.6 ft, 16 ft, or 33 ft) (Additional lengths available

Probe Cable Diameter

HMT333 (+80 °C (+176 °F))

6.0 mm (0.24 in)

Other probes

5.5 mm (0.22 in)