- temperature
- relative humidity
- dew point temperature
- absolute humidity
- specific humidity
- mixing ratio
- specific enthalpy
Programmable temperature and humidity transmitters are equipped with temperature and relative humidity sensors. Measured values are also converted to other humidity interpretation - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy. Degrees Celsius and Fahrenheit are user selectable. Transmitters are available in wall-mount, duct-mount and bar types. Also types with T+RH probe on a cable are available. Transmitter contains a microprocessor based control circuitry in a durable plastic case with connection terminals and sensors in a filter with stainless steel mesh. Humidity transmitters are also available with two galvanic isolated 4-20mA outputs. Configuration of outputs and output range are user adjustable. Large dual line LCD for simultaneous display of T+RH or other humidity interpretation is an advantage. Display is possible to switch off. Computerized design ensures temperature compensation of the humidity sensor and fail indication. State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitters are designed for use in non-aggressive environment.
APPLICATIONS - measuring and control of air humidity at:
- warehouses
- glasshouses
- manufacturers
- museums, archives, galleries
- air-conditioned rooms
- weather stations
| COMMON TECHNICAL PARAMETERS | |
|---|---|
| Air 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: | ±1,5°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: | ±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 of case with electronics: | -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 |
| Range of humidity sensor temperature compensation: | -30 to +125°C |
| Current outputs - two-wire connection: | 4-20mA, galvanic isolated with dual-output models |
| Configuration of outputs and output range: | user adjustable from the PC |
| Filtering ability of sensor cover: | 0.025mm |
| Protection of the case with electronics: | IP65 electronics, IP40 sensors |
| Power: | 9-30Vdc |
| Warranty: | two years |
Humidity transmitters are available in the following types:
| Type | Measured value | Maximum range of temperature measurement | Length | Output 1** | Output 2** | Note |
|---|---|---|---|---|---|---|
T1110
|
RH | -30 to +80°C | 75mm | 0 to 100%RH | - |
Outdoor, indoor use. Only relative humidity output. |
T3110
|
RH+T | -30 to +80°C | 75mm | 0 to 100%RH | -30 to +80°C | outdoor, indoor |
T3111
|
RH+T | -30 to +105°C* probe including cable | probe cable 1,2,4m | 0 to 100%RH | -30 to +105°C | T+RH probe with 1m cable. Cable lengths 2m or 4m available. |
T3113
|
RH+T | -30 to +125°C* | 150mm | 0 to 100%RH | -30 to +125°C | duct mount |
T3117
|
RH+T | -30 to +125°C* | 700mm | 0 to 100%RH | -30 to +125°C | bar type |
T0110
|
temperature | Thermometer |
* Maximum temperature only at the measuring end with sensors. Maximum temperature +105°C for T3111 with cable probe is allowed also for the cable. Relative humidity at temperature over +85°C is limited in accordance with the graph. Near plastic case with electronics maximum temperature is +80°C.
** 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 transmitters. Also identical value can be assigned to both outputs. Outputs are adjusted to maximum range from the manufacturer. Output range is user adjustable from the PC by means of the optional cable SP003 - see below. Free configuration program for transmitter adjustment is ready to download anytime. If different adjustment of outputs and output ranges are required, please specify required output values (RH, T, Tdp, ..) and required ranges.
Ordering example: Transmitter T3110, output 1: RH 10 to 90%, output 2: temperature 0 to 35°C
Figure: Working range of humidity probe
Typical application wiring of single output nad 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.
| OPTIONAL ACCESSORY | ||
|---|---|---|
|
SP003 | cable for humidity transmitter adjustment via USB port |
|
F5200 | grey sensor cover with filter from stainless steel mesh, filtering ability 0,025mm for transmitters T1110, T3110, T3113, T3117 |
|
F5200B | black sensor cover with filter from stainless steel mesh, filtering ability 0,025mm for transmitter T3111 |
|
F0000 | sintered bronze sensor cover. Filtering ability 0.025mm. |
|
PP4 | flat plastic circular flange for duct mounting |
|
PP90 | right-angled stain-less steel flange for wall mounting |
|
SP004 | plastic gland for direct mounting of the humidity probe to a 29 mm diameter hole |
|
MD036 | self adhesive Dual Lock for easy installation |
|
SP005 | Tool for easy wire connection to terminals |
|
Solar radation shield | |
|
accessory for calibration and adjustment of humidity transmitter by the user | |
Transmitters are directly compatible with sixteen channel Comet data acquisition system MS.