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manufacturer of measuring instruments
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Remote CO2 concentration thermometer hygrometer with Ethernet interface and two relays

Temperature, humidity, CO2 level sensor with two output relays. Humidex reading.

Sensor H6520 is designed for online monitoring of temperature, relative humidity and CO2 of air without aggressive substances. 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 CO2 measurement is based on a 2-source, 2-beam process. CO2 measurement with long-term stability is guaranteed thanks to the proven non-dispersive infrared (NDIR) CO2 measurement cell. The unique patented auto-calibration procedure compensates for aging of the infrared source and guarantees high reliability, long term stability and eliminates the need of periodical recalibration in the field.

 

Green LED shines - CO2 concentration 0 to 1000 ppm

Yellow LED shines - CO2 concentration 1001 to 1200 ppm

Red LED shines - CO2 concentration 1201 ppm and more

 

  • code
    H6520
  • Warranty
    3 years

Technical data

Measured value

Temperature
Relative humidity
Counted values (dew point…)
CO2

TEMPERATURE SENSOR

Measuring range -30 to +80 °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

CO2 SENSOR

Measuring range 0 to 2000 ppm
Accuracy ±(50ppm +2% from reading) at 25°C and 1013hPa
Resolution 1 ppm

RELAY OUTPUTS

Quantity 2
Maximal voltage 50 V
Maximal current 2 A
Maximal power 60 VA

GENERAL TECHNICAL DATA

Operating temperature -30 to +60 °C
Channels internal temperature, humidity and CO2 sensor
Counted values dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy
Acoustic alarm from built-in beeper - switchable
Output Ethernet
Measuring interval 2 s; CO2 15 s
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 IP30
Dimensions 136 x 213 x 45 mm; stem length 75mm
Weight approx. 340 g
Warranty 3 years

WebSensor "H" Online Demo