H3021 Transmitter for temperature and humidity with two relay outputs View larger

H3021 Transmitter for temperature and humidity with two relay outputs

Comet System

New

Humidistat, thermostat with two relay outputs. Outdoor, indoor use.

Humidity & temperature sensors on a probe cable. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy.

The device is supplied with T+RH probe with 1 meter cable.

299,00 €

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IP Classification IP65 electronics, IP40 sensors
The Sensor measures: Temp./Rel. Humidity
Output Signal: Relays
Power Supply: 9-30 Vdc

Humidistat is designed for two-state control of e.g. heating, ventilation, humidifier, dehumidifier, etc. 
Transmitter is equipped with two relay outputs for alarm indication or control of external devices. Each relay can be assigned to any measured or computed value. For each relay setting of delay, hysteresis, audible alarm is enabled. 
Measured temperature and relative humidity is recalculated to other humidity interpretations - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy. 
Parameters are easy adjustable from regulator keyboard or from the computer. Large dual line LCD for simultaneous display of temperature, relative humidity or other calculated humidity interpretation is an advantage. 
State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitter is designed for use in non-aggressive environment.

HUMIDISTAT APPLICATIONS

- temperature and humidity control
- monitoring of temperature, humidity:

  • building management and automation
  • server rooms
  • telecommunication devices
  • warehouses, glasshouses
  • manufacturers
  • museums, archives, galleries
  • air-conditioned rooms, HVAC
  • weather stations

Relative humidity range

Figure: Relative humidity operating range

Output None
Measured Value Relative Humidity + Temperature
Construction Type With T+RH Probe On Cable
Design Industrial
Temperature Measuring Range -30 to +105°C
Relay Output Yes
Two-State Input No
Lcd Display Yes
PoE No
Maximum switching voltage, current, power of relay output 50V, 2A, 60VA
Audible alarm from built-in beeper - switchable
Relative humidity range 0 to 100%
Accuracy of relative humidity measurement ±2.5% relative humidity from 5 to 95% at 23°C
Accuracy of temperature output ±0.4°C from -30 to +100°C
±0.4% from reading over +100°C
Available temperature units degrees Celsius, Fahrenheit

Accuracy and range of dew point temperature output -

for more details see graphs

±1.5°C at ambient temperature T<25°C and RH>30%
range -60 to +80 °C
Accuracy and range of absolute humidity output ±1.5g/m3 at ambient temperature T < 25°C
range 0 to 400 g/m3
Accuracy and range of specific humidity output ±2g/kg at ambient temperature T < 35°C
range 0 to 550 g/kg
Accuracy and range of mixing ratio output ±2g/kg at ambient temperature T < 35°C
range 0 to 995 g/kg
Accuracy and range of specific enthalpy output ±3kJ/kg at ambient temperature T < 25°C
range: 0 to 995 kJ/kg
Temperature operating range -30 to +80°C
Temperature operating range of LCD display readable to operating temperature +70°C, it is recommended to switch OFF the LCD over +70°C
Temperature compensation of the humidity sensor all temperature range
Filtering ability of sensor cover 0.025mm - filter with stainless steel mesh
IP protection IP65 electronics, IP40 sensors
Power 9-30Vdc, power consumption approximately 1W
Length of the probe cable 1m, 2m or 4m optionally
Dimensions 136 x 159 x 45 mm (W x H x D), probe length 88 mm, probe diameter 18mm
Weight approximately 400g - 1m probe
Warranty 2 years
Ac/dc adapter 12V/450mA stabilized
code: A1510
Ac/dc adapter 12V/450mA stabilized
cable for transmitter adjustment via USB port
code: SP003
cable for transmitter adjustment via USB port
Wall holder for external probes DIGIL
code: SP009
Wall holder for external probes DIGIL
plastic sensor protection with stainless filter (black)
code: F5200B
plastic sensor protection with stainless filter (black)
PTFE sensor protection, white
code: F5300
PTFE sensor protection, white
sintered bronze sensor cover
code: F0000
sintered bronze sensor cover
Multi-plate radiation shield
code: F8000
Multi-plate radiation shield
PP4 Flat circular flange
code: PP4
PP4 Flat circular flange
PP90 Right-angled stainless steel flange
code: PP90
PP90 Right-angled stainless steel flange
plastic gland for direct mounting of the humidity probe
code: SP004
plastic gland for direct mounting of the humidity probe
Tool for easy connection to WAGO terminals 233 for serial output transmitters
code: SP006
Tool for easy connection to WAGO terminals 233 for serial output transmitters
Humidity Standard 10%RH, set 5pcs
code: HM023
Humidity Standard 10%RH, set 5pcs
Humidity Standard 80%RH, set 5pcs
code: HM024
Humidity Standard 80%RH, set 5pcs
Vessel for adjustment and calibration of humidity
code: MD046
Vessel for adjustment and calibration of humidity

TSensor

Easy use configuration software temperature, humidity, pressure and CO2 COMET transmitters with analog, digital or Ethernet output - Series Pxxxx, Txxxx, Hxxxx.
For sensors with analog output is required SP003 communication cable and USB driver for this cable. Driver is installed automatically during setup program TSensor.
RS232 sensors communicates with the software via included connection cable with connector for RS232 interface.
For sensors with RS485 is needed RS485/232 converter – MP006.
Transmitter with Ethernet output is configured for connection of sensors and a PC using an Ethernet cable or via built-in web server device.

Sensor Reader

Freeware program for displaying and logging data from one COMET sensor. Software for sensors with serial output (RS232, RS485) or Ethernet output to store measured values to a CSV file. Records can be processed in e.g MS Excel etc. For reading values is used Modbus protocol.

Software allows acoustic signalization of exceeded limits or the malfuction of sensor.

For display or record values from several transmitters with RS232/RS485 output the software Sensor RS485/232 utility and software COMET Database must be purchased.
To display or record the values from sensors with Ethernet output the software COMET Database must be purchased.

Minimum hardware and software requirements to install the COMET software

  • Operating System: Windows 7 and later, or Windows Server 2008 R2 and later; . NET Framework 4 or 4.5, COMET Database 10.0 and higher
  • Processor speed: 1.4GHz
  • Memory: 1GB RAM

The licence is not portable and can be used only on PC where was installed.
The software on CD is sent on request, as an optional accessory.

Download Software: Tsensor (3-3-9-0)

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