Temperature and Humidity Transmitter -HTX-441
₹4,725
Prices are inclusive of Delivery Charges.
HTX-441 – Wall Mount Humidity + Temperature or only Humidity Sensor cum Transmitter with dual Isolated Output (SS Stem Size = 12.5 Dia. x 60 mm)
Size (mm): 76 x 70 x 38 (H x W x D)
Libratherm offers rugged, and reliable T + RH sensor cum Transmitter Model HTX-441 for sensing Temperature and RH simultaneously in the environment or in the air duct and transmitting the proportional analogue value in the form of (4-20) mA or (0-10) VDC.
Usually, the signal generated by T+RH sensors is low in strength and hence cannot be transmitted over long distances. If done so, the signal will likely to drop over a very long cable, resulting in the inaccurate measurement of Temperature and %RH value.
The transmitter featured here converts these low-level signals from the Temperature and RH sensors to the equivalent signal of 4-20mA/0-10VDC, which can be transmitted over a very long distance without losing measurement accuracy. Dual 4-20mA proportional to T and %RH can be used for remote measurement and control.
This transmitter typically operates on a 24VDC power supply (offers a wide range of 18 to 36VDC) and is housed in an IP-65 ABS plastic enclosure with a suitable length of the SS stem for inserting the sensor in the duct area. The 24VDC supply and 4-20mA/0-10V are electrically isolated from each other. They prevent ground line interferences or loading effects while connecting to external measuring/controlling devices like DCS, PLC, BMS controller, DDC, PID or On/Off controllers. HTX-441 can be used in 4 wire or two wire loop powered configuration. A standard 2-meter cable with end terminal lugs is attached to the transmitter for ease of connection and wiring.
Key Feature:
- Highly accurate (T+RH) integrated sensor.
- Sensing range (0 to 60) oC and (0 to 100) %Rh
- Operates on 18- 36VDC
- Duct type and Wall mount models
- 4-20mA / 0-10V analogue output for Temperature and RH
- 4-20mA / 0-10V output and power supply grounds are electrically isolated
- IP-65 ABS plastic enclosure with SS Stem and micro-porous Bronze sintered filter
- Standard 2-meter cable for power supply and output signals
Applications:
- HVAC / AHU / Humidifiers /Foggers and De-humidifiers
- Pharma Labs / Manufacturing Plants
- Data Centre / Server rooms, Green Houses, Ware Houses, etc…
- Textile Industries
- Green House
Technical Specification
| Parameters | Description |
|---|---|
| Item | T + RH sensor cum Transmitte |
| Models | HTX-440, HTX-440-DM, HX-440 and HX-440-DM |
| Built in Sensors | 4th Generation High- accuracy Industrial grade Integrated Relative Humidity and Temperature sensor – embedded inside the bronze sintered micro porous air filter and SS stem. |
| Temp. Range | 0 to 60 °C (Std. range for HVAC applications) |
| Temp. Output | (4-20) mA / (0-10) VDC is proportional to 0 to 60 °C. |
| RL max = 500 Ohms for (4-20) mA, RL min = 100K for (0-10) VDC | |
| Temp. Accuracy | ± 0.3 °C |
| RH Range | 0 to 100% (Std. range for HVAC applications) |
| %RH Output | (4-20) mA / (0-10) VDC proportional to 0 to 100%Rh |
| RL max = 500 Ohms for (4-20) mA, RL min = 100K for (0-10) VDC | |
| RH Accuracy | +/- 2.5% @ 25°C and 50% Rh |
| Output Configuration | 4 wire or 2 wire as shown in the wiring diagram. |
| Isolation Voltage | Greater than 1.5KV (4-20mA/0-10VDC Output and 24VDC Supply voltage are electrically isolated) |
| Supply Voltage | Typical 24VDC @ 100mA max. (Wide range of 18 to 36VDC @ 100mA) |
| Type | Wall mounted or Duct mounted in the Duct hole of 14 mm. +/- 1 mm. |
| Enclosure / SS Stem Size | As given in Table1 and Diagram 1 |
| Enclosure / Box type | IP-65 ABS Plastic with duct/wall mounting clamps |
| Cable | 6-core PVC/PVC insulated 2 meters long with standard colour code. An extra length of cable can be provided against the requirement. |
| Precautions for use | Avoid condensation and drenching. Avoid exposure to saline, inorganic and organic gases. |
| CE Certification | Low Voltage Directives - 2014/35/EU and EMC Directives – 2014/30/EU |
Ordering Information
| Sr. No. | Model | Product Description | Part No. |
|---|---|---|---|
| 1.1 | HTX-441 | Wall Mount Humidity + Temperature Sensor cum Transmitter with 2 x 4-20mA output | 3207-1 |
| 1.2 | HTX-441 | Wall Mount Humidity + Temperature Sensor cum Transmitter with 2 x 0-10V output | 3207-2 |
