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4

HT20, HT20IoT -TEMPERATUREANDHUMIDITYMONITOR

RATED OPERATING CONDITIONS

Supply voltage

6 V d.c.

or PoE IEEE 802.3af

Power concumption

< 2 VA

Preheating time

15 minutes

Ambient temperature

– 20...23...60 °C

Relative humidity

< 95%

Protection grade ensured by housing

IP 20

Fixing way

on a wall

Weight

<0.3 kg

Dimensions (W x H x D)

150(W)x100(H)x30(D)mm

Operating position

sensor down

SAFETY AND COMPATIBILITY REQUIREMENTS

Electromagnetic compatibility

Noise immunity

acc. to EN 61000-6-2

Noise emissions

acc. to EN 61000-6-4

Pollution grade

2

acc. to EN 61010-1

Installation category

III

acc. to EN 61010-1

Maximal phase-to-earth operating voltage

50V

acc. to EN 61010-1

Altitude above sea level

< 2000 m

PARAMETERS OF DC ADAPTER (OPTION):

Voltage

6 V d.c. ± 5%

Max. power

6W*

Input voltage

90...253 V a.c.

Operating temperature

0...40 oC*

External dimensions

63.6 x 29.5 x 45.6 mm*

Cable length

1.4 m ± 10%*

Plug

ɸ 5.5 / 2.1 mm

* adapter parameters can be changed

BASIC PARAMETERS

Relative humidity (RH)

0...95 % condensation inadmissible

Basic error of humidity processing

±3% of the range for RH = 10...90% ; ±5% in other range

Hysteresis of humidity measurement

± 1% RH

Basic range of temperature measurement (T)

– 20...60 °C

Basic error of temperature processing

±0.6 oC in range 10...40 °C; ±1.0 °C in other range

Calculated values

absolute humidity (a) [g/m3]

dew point temperature (Td)  [°C]

DIGITAL INTERFACE

Interface type

Transmission protocoll

Remarks

Ethernet 10/100 Base-T

MQTT (HT20IoT)

Modbus TCP, HTTP, FTP

max. number of simultaneous connections - 10