- Stable in the long term
- easy to assemble
- Data management with own software
- for laboratory, air-conditioning and drying technology, wood processing, food, feed, construction and paper industry
- for printing plants, agriculture, biotechnology and medicine
- Lifetime Support
LF-TD 120 Humidity transmitter up to 120 °C
LF-TD 120 Digital humidity-temperature transmitter / analog outputs / long-term stable / robust stainless steel sensor tube / lifetime support
Humidity transmitters for maximum temperatures of 120 °C are an important component in the measurement of humidity and temperature in manufacturing processes, further processing, storage and transport in various industries, such as laboratory, air conditioning and drying technology, wood processing, food, feed, construction and paper industries, printing, agriculture, biotechnology and medicine.
The LF-TD transmitter series in a robust and easy-to-mount aluminum housing is ideally suited for this purpose. With a 500mm long and robust sensor tube (Ø 12mm) made of stainless steel with screwed-on sensor cap, you can use the LF-TD 120 temperature and humidity transmitter in many ways. Various sensor caps, such as steel sinter, bronze sinter, plastic with or without filter paper, are available as optional accessories.
By default, the humidity and temperature values are output via analog 4-20mA current output. Optionally, other interfaces such as RS232, Profinet, Modbus or USB can be used. An additional extension of the application possibilities offers an optional display, on which the current humidity and temperature values can be read.
Two optional relay outputs enable direct control of e.g. alarms or ventilation. These switching outputs can be freely configured, e.g. switching points and hysteresis.
Trouble-free connection to an existing plant is guaranteed by the supplied 5 meter long connection cable including overmolded, robust sensor plug (sensor side). The second side of the cable is equipped with wire end ferrules for easy connection, e.g. in the control cabinet.
The capacitive humidity sensor used guarantees long-term stable, accurate measurement results and is resistant to normal contamination and many chemicals. The sensors installed in the humidity transducers are also characterized by very fast adjustment behavior. The high measuring accuracy of the LF-TD series is ensured by factory calibration at six humidity points. A calibration certificate is available on request.
Application area
Industrial transmitter for humidity, temperature, dew point and absolute humidity.
Humidity transmitter for maximum temperatures of 90°C for laboratory , air conditioning and drying technology, wood processing, food, feed, construction and paper industries, printing, agriculture, biotechnology and medicine.
Performance features
| Steel tube stainless | Ø12 x 500 mm |
|---|---|
| Relative humidity | 0 to 100 % |
| Calibration | +/- 2 % (10 to 90 %) |
| Output humidity | 4 to 20 mA (0 to 100 %) |
| Temperature range | -20 to +120 °C |
| Calibration | +/- 0.3 °C (+10 to +60 °C) |
| Output Temp. | 4 to 20 mA (-20 to +120 °C) |
| Supply | 12 to 29 VDC |
| Temperature electronics | -20 to +85 °C |
| Optional interfaces | RS232, USB, Ethernet |
| Dimensions electronics housing | 70 x 32 x 120 mm |
Your advantages
For more information, please click on the red boxes.
Comparison table / Extensions / Accessories
| Art.no. | Image | Extension, accessories |
|---|---|---|
| 10006 |
|
Calibration deviceCalibration device for pipe sensor
|
| 12456 |  |
Drip shieldDrip shield LF-T transmitter
|
| 10600 |  |
Factory calibration certificate Material humidityFactory calibration certificate - Calibration delivery record for material moisture meters
|
| 11235 |  |
Certified oak ampoulesCertified oak ampoules - set of 5 pieces 80% RH.
|
| 10352 |  |
Certified oak ampoulesCertified oak ampoules - set of 5 pieces 50% RH.
|
| 10005 |
|
Certified oak ampoulesCertified oak ampoules - set of 5 pieces: 2 pieces 35 % RH, 1 piece 50 % RH, 2 pieces 80 % RH.
|
| 14733 |  |
HumiSenseWareHumimeter Standard License: Live Trend - Visualization Software
|
| 10249 |  |
Sensor capStainless steel sintered sensor cap, stainless steel sintered filter: for use at high temperatures and in harsh operating environments
|
| 12011 |  |
Special request flat rateSpecial request flat rate for humidity transmitter series per order, independent of quantity
|
| 13738 |
|
Ethernet interfaceEthernet interface for LF-TD
|
| 13731 |  |
Option display with keyboard for LF-TDOption display with keyboard for LF-TD
|
| 13612 |  |
Mounting bracketMounting bracket LF-TD
|
| 12808 |
|
USB interfaceUSB interface for LF-TD
|
| 12806 |  |
Relay outputRelay output humidity for LF-TD
|
| 12807 |
RS232 interfaceRS232 interface for LF-TD
|
| Properties | LF-TD-TA | LF-TD 60 | LF-TD 90 | LF-TD 120 | LF-TD 150 | LF-TD 180 |
| Item no. | 14771 | 12609 | 12665 | 12655 | 12667 | 12938 |
| Application | Humidity transmitters for maximum temperatures of 60 °C for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. | Industrial transmitter for humidity and temperature. Humidity transmitter for maximum temperatures of 60 °C for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. | Humidity transmitters for maximum temperatures of 90 °C for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. | Humidity transmitters for maximum temperatures of 120 °C for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. | Humidity transmitters for maximum temperatures of 150 °C for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. | Humidity transmitters for maximum temperatures of 180 °C for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. |
| Steel tube stainless | - | - | Ø12 x 125 mm | Ø12 x 500 mm | Ø12 x 750 mm | - |
| Relative humidity | 0 to 100 % | 0 to 100 % | 0 to 100 % | 0 to 100 % | 0 to 100 % | - |
| Calibration humidity | +/- 3 % (10 to 90 %) | +/- 2 % (10 to 90 %) | +/- 2 % (10 to 90 %) | +/- 2 % (10 to 90 %) | +/- 2 % (10 to 90 %) | - |
| Moisture output | 4 to 20 mA (0 to 100 %) | 4 to 20 mA (0 to 100 %) | 4 to 20 mA (0 to 100 %) | 4 to 20 mA (0 to 100 %) | 4 to 20 mA (0 to 100 %) | - |
| Temperature range | -20 to +60 °C | -20 to +60 °C | -20 to +90 °C | -20 to +120 °C | -20 to +150 °C | -20 to +180 °C |
| Temperature calibration | +/- 0.6 °C (+10 to +60 °C) | +/- 0.3 °C (+10 to +60 °C) | +/- 0.3 °C (+10 to +60 °C) | +/- 0.3 °C (+10 to +60 °C) | +/- 0.3 °C (+10 to +60 °C) | - |
| Temperature output | 4 to 20 mA (-20 to +60 °C) | 4 to 20 mA (-20 to +60 °C) | 4 to 20 mA (-20 to +90 °C) | 4 to 20 mA (-20 to +120 °C) | 4 to 20 mA (-20 to +150 °C) | 4 to 20 mA (-20 to +180 °C) |
| Supply | 12 to 24 VDC | 12 to 29 VDC | 12 to 29 VDC | 12 to 29 VDC | 12 to 29 VDC | - |
| Temperature electronics | -20 to +60 °C | -20 to +85 °C | -20 to +85 °C | -20 to +85 °C | -20 to +85 °C | -20 to +180 °C |
| Optional interfaces | - | RS232, USB, Ethernet | RS232, USB, Ethernet | RS232, USB, Ethernet | RS232, USB, Ethernet | - |
| Dimensions electronics housing | 70 x 32 x 120 mm | 70 x 32 x 120 mm | 70 x 32 x 120 mm | 70 x 32 x 120 mm | 70 x 32 x 120 mm | - |
| Scope of delivery | LF-TD-TA with 1.9 meter connection cable | LF-TD 60 with 1.9 meter connection cable | LF-TD 90 incl. 1.9 meter connection cable with overmoulded 5-pin sensor plug | LF-TD 120 with 1.9 meter connection cable with overmolded 5-pin sensor plug | LF-TD 150 with 1.9 meter connection cable with overmolded 5-pin sensor plug | LF-TD 180 with 1.9 meter connection cable with overmolded 5-pin sensor plug |
