H7531 | Ethernet Interface & Relay Outputs

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

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 1m cable. Cable lengths 2m or 4m available optionally.

Processing and analysis of measured data:

• online in COMET Cloud
• COMET Database software
• integration into 3-party systems

INCLUDED IN DELIVERY:

• H7531
• Instruction Manual
• Traceable Calibration Certificate
• FREE software TSensor for Configuring of the Transmitter
• COMET Cloud for 3 Months

POWER SUPPLY IS NOT INCLUDED IN DELIVERY

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 1 meter
Weight approx. 360 g
Warranty 3 years