Interior temperature, humidity, barometric pressure sensor with 4-20 mA output
- temperature
- relative humidity
- dew point temperature
- absolute humidity
- specific humidity
- mixing ratio
- specific enthalpy
- barometric pressure
Temperature, humidity, barometric pressure transmitters are specially designed for use in exacting interiors in building energy management and HVAC systems. Are designed for easy installation on ordinary KU68 wiring boxes for household switches and sockets.
Large dual line LCD for simultaneous display of temperature, humidity or barometric pressure is an advantage. Display is possible to switch off.
Computerized design ensures temperature compensation of the humidity and pressure sensors and fail indication. Transmitters are designed for use in non-aggressive environment.
APPLICATIONS
- measuring of temperature, humidity and pressure at:
- residential and official buildings
- building energy management and HVAC systems
- pharmaceutical industry
- museums, archives, galleries
TECHNICAL PARAMETERS | |
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Operating temperature range: | 0 to +50°C |
Operating relative humidity range: | 5 to 95%RH |
Current output: | 4 to 20mA, two-wire connection |
Configuration of outputs and output range: | user adjustable from the PC |
Power: | 9-30Vdc |
Dimensions: | 88 x 106 x 33 mm |
Material of the case: | ABS |
Color: | white |
Protection: | IP20 |
Warranty: | 2 years |
Transmitters are available in the following models:
T0118 air temperature transmitter | |
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Output 4 to 20mA / 0 to +50°C Accuracy ±0,5 °C Display reading and temperature output are user selectable in degrees Celsius or Fahrenheit |
Measuring range of relative humidity: | 5 to 95%RH |
Accuracy of relative humidity measurement: |
±2.5%RH from 5 to 60%RH ±3.0%RH from 60 to 95%RH at 23°C |
Accuracy of temperature output: | ±0.5°C |
Accuracy and range of dew point temperature output:
- for more details see graphs |
±1,6°C at ambient temperature T<25°C and RH>30% range -60 to +80 °C |
Accuracy and range of absolute humidity output: | ±3g/m3 at ambient temperature T < 40°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: | ±2,2g/kg at ambient temperature T < 35°C range 0 to 995 g/kg |
Accuracy and range of specific enthalpy output: | ±3,5kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg |
Current outputs - two-wire connection: | 4-20mA, dual output T3118 transmitter has two galvanically isolated current loops |
Outputs are set to maximum range from the manufacturer (0 to 50°C, 0 to 100%RH).
To set other range by the user buying of SP003 cable is necessary - see Optional accessory.
Free configuration program TSensor for transmitter adjustment is ready to download anytime.
If different adjustment of outputs is required, please specify required output values (RH, T, Tdp, ..) and required ranges in the order. Adjustment is free of charge.
Any measured value - temperature, relative humidity, dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy can be assigned to each output of dual output T3118 transmitter.
Also identical value can be assigned to both outputs.
Ordering example: Transmitter T3118, output 1: RH 10 to 90%, output 2: temperature 0 to 35°C
Instruction Manual for all models
Typical application wiring of single output and dual output transmitters
Calculation of minimum power voltage Uss for proper operation:
Uss min> Uo min + Imax * Rz,
where: Uo min= 9 V
Imax... approximately 20 mA
Rz... sensing resistor (shunt)
Both current loops (I1 and I2) are connected analogically, current loop I1 must be always connected.
Included accessory:
Traceable calibration certificate from the manufacturer, instruction manual.
Calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
Example of calibration certificate.
Free program TSensor for configuring of the transmitter is ready to download. SP003 cable for barometer adjustment via USB port is necessary to buy.
OPTIONAL ACCESSORY | ||
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SP003 | cable for transmitter adjustment via USB port |
Sensors are directly compatible with sixteen channel Comet
data acquisition system MS.
Visit also Comet temperature, humidity, pressure
industrial transmitters.
Declaration of conformity in pdf format