Thermometer hygrometer barometer with Ethernet interface and relays, cable 2 meters

Ambient temperature, relative humidity, atmospheric pressure with two relay outputs.

Sensor H7531 is designed for online monitoring of temperature, relative humidity of air without aggressive substances. Three binary inputs to detection of two-states signals are the advantage. Other devices are controlled by two relay outputs.

High precision capacitive polymer sensor ensures excellent long term calibration stability and ultimate accuracy. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy.

The device is supplied with T+RH probe with 2 meters cable.

Processing and analysis of measured data:

code

H7531-2
Warranty

3 years

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Product variants

Technical data

Measured value

Temperature

Relative humidity

Counted values (dew point…)

Atmospheric pressure

Two-state signal

TEMPERATURE SENSOR

Measuring range -30 to +105 °C

Accuracy ±0.4 °C

Resolution 0.1 °C

HUMIDITY SENSOR

Measuring range 0 to 100 % RH

Accuracy ±2.5 % RH from 5 to 95 % at 23 °C

Resolution 0.1% RH

DEW POINT

Measuring range -60 to +80 °C

Accuracy ±1.5 °C at ambient temperature T <25 °C and RH >30 %

Resolution 0.1 °C

ATMOSPHERIC PRESSURE SENSOR SENSOR

Measuring range 600 to 1100 hPa

Accuracy ±1.3 hPa at 23 °C from 800 to 1100 hPa

Resolution 0.1 hPa

RELAY OUTPUTS

Quantity 2

Maximal voltage 50 V

Maximal current 2 A

Maximal power 60 VA

BINARY INPUTS

Quantity 3

Signal for binary inputy dry contact, open collector or two-state voltage signal.
Inputs are not galvanically isolated.

Minimum pulse duration on binary input 500 ms

Voltage across open contact < 3,3 V

Low voltage level 0 to +0,5 V

High voltage level +3,0 to +30 V

GENERAL TECHNICAL DATA

Operating temperature -30 to +80 °C

Channels internal atmospheric pressure sensor, 1x connectable temperature+humidity probe

Acoustic alarm from built-in beeper - switchable

Counted values humidex, dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy

Output Ethernet

Measuring interval 2 s

Range of humidity sensor temperature compensation all temperature range

Available temperature units degrees Celsius, degrees Fahrenheit

Communication protocol WWW, ModbusTCP, SNMPv1, SOAP, XML

Alarm protocols E-mail (SMTP authentication is supported), SNMP Trap, Syslog

Power 9-30 Vdc

Protection class IP40

Dimensions 136 x 213 x 45 mm; stem length 75 mm

External probe cable length 2 meters

Weight approx. 360 g

Warranty 3 years

Reference

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