Technical Data

Measurement Performance

Relative Humidity

Measurement range

0 … 100 %RH

Response time (90 %) at +20 °C

(+68 °F) in 0.1 m/s air flow

17 s with grid filter

50 s with grid and steel, netting filter

60 s with sintered filter

Factory calibration uncertainty

(+20 °C)

±0.6 %RH (0 … 40 %RH)1)

±1.0 %RH (40 … 97 %RH)1)

Accuracy 2) 3)

at +15 … +25 °C (+59 … +77 °F)

±1 %RH (0 … 90 %RH)

±1.7 %RH (90 … 100 %RH)

at −20 … +40 °C (−4 … +104 °F)

±(1.0 + 0.008 x reading) %RH

at −40 … +180 °C (−40 … +356 °F)

±(1.5 + 0.015 x reading) %RH

Humidity Sensor Types

HUMICAPâ 180R

Typical applications

HUMICAPâ 180RC

Applications with chemical purge/

warmed probe

HUMICAPâ 180V

Catalytic sensor for H2O2

environments

HUMICAPâ 180VC

Catalytic sensor with chemical purge

for H2O2 environments

Temperature

HMT311

−40 … +60 °C (−40 … +140 °F)

HMT313

−40 … +80 °C (−40 … +176 °F) or

−40 … +120 °C (−40 … +248 °F)

HMT314, HMT315, HMT317, HMT318

−70 … +180 °C (−94 … +356 °F)

Typical accuracy at +20 °C (+68 °F)

±0.2 °C (±0.36 °F)

Temperature sensor

Pt100 RTD Class F0.1 IEC 60751

1)

Defined as ±2 standard deviation limits. Small variations possible, see also calibration certificate.

2) Including non-linearity, hysteresis, and repeatability.

3) With HUMICAPâ 180V and 180VC sensors, accuracy is not specified below −20 °C (−4 °F) operating

temperature.

∆ °C

°C

-0.7

0.7

0.6

0.5

0.4

0.3

0.2

0.1

-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

0

0

-60

-40

-20

20

40

60

80

100

120

140

160

180

-80

Accuracy Over Temperature Range

Operating Environment

Operating temperature for electronics

−40 … +60 °C (−40 … +140 °F)

Storage temperature

−55 … +80 °C (−67 … +176 °F)

Operating Pressure

HMT314

HMT318

HMT317

0 … 100 bar

0 … 40 bar

0 … 10 bar

EMC compliance

EN61326-1, Industrial environment

Inputs and Outputs

Two analog outputs, selectable and

scalable

0 … 20 mA or 4 … 20 mA

0 … 5 V or 0 … 10 V

1 … 5 V available through scaling

Typical accuracy of analog output at

+20 °C

±0.05 % full scale

Typical temperature dependence of

analog output

0.005 %/°C (0.003 %/°F) of full scale

Serial output

RS-232C

Connections

M12 8-pin male connector with

RS-232C,

current/voltage outputs (two

channels) and Uin

Operating voltage

10 … 35 VDC

External load

RL < 500 Ω

Startup time after power-up

3 s

Minimum Operating Voltage

RS-232C output

10 VDC

Analog output

15 VDC

Probe heating and chemical purge

15 VDC

Pressures above 10 bara (145 psia)

24 VDC

Power Consumption

RS-232

12 mA

Uout 10 V (10 kΩ) channel 1 & channel 2 12 mA

Iout 20 mA (load 511 Ω) channel 1 &

channel 2

50 mA

Chemical purge at 24 VDC

+ 220 mA

Warmed probe at 24 VDC

+ 240 mA

Mechanical Specifications

Transmitter housing material

G-AlSi10Mg

Transmitter base material

PPS

IP rating

IP66

Probe cable length

2, 5, or 10 m (6 ft 7 in, 16 ft 5 in, 32 ft

10 in)

Cable feed through alternatives

M12 8-pin male connector with 5 m

cable,

or

8-pin female screw terminal

connector for cable diameter

4 … 8 mm

Sensor protection

PPS grid with stainless steel net

PPS grid

Sintered filter

Membrane stainless steel filter

H2O2 filter

Spare Parts and Accessories

Rain shield

ASM211103

USB cable

238607

PPS plastic grid with stainless steel

netting

DRW010281SP

PPS plastic grid filter

DRW010276SP

Sintered filter AISI 316L

HM47280SP

Stainless steel filter

HM47453SP

Stainless steel filter with membrane

214848SP

Catalytic H2O2 filter

231865