Transmitter LKM154-U
Please note: Orders placed after December 19, 2025, will be processed starting January 5, 2026. Thank you for your understanding.
LKM electronic GmbH wishes all customers a Merry Christmas.
The LKM154-U is a digital, programmable transmitter with an LCD display and is mounted in a special BUZH connection head. It can be set for various thermocouples according to DIN EN 60584 as well as for Pt100 and Pt1000 measuring resistors according to DIN EN 60751. It converts the temperature-dependent measured variable of the sensor into a standard signal of 0...10V. Lead resistances are compensated by means of a four-wire circuit. A three- or two-wire circuit can also be implemented. The temperature compensation for thermocouples is done in the transmitter itself.
The transmitter is supplied configured to customer specifications. Subsequent changes of the sensor and measuring range can be made with our communication interface "LKM S1" with adapter A1 and a PC. The required program is available free of charge in the tab "Downloads". With this additionally the measuring data can be acquired and recorded.
For a small correction, an offset can be set via software.
The selection menu is available for configuration.
When entering your individual measuring range, please note the measuring range of the selected sensor. These can be found in the technical data. The minimum span for resistance sensors is 20°C and for thermocouples 200°C.
Via the connection thread M24x1.5 this transmitter can be completed with a temperature sensor to a complete measuring assembly. We would be pleased to provide you with an individual offer for a complete measuring assembly according to your specifications. You can request this with the button >>Ask about product<<.
| Measurement rate: | 4/s | |
| Resolution: | optionally 1 or 0,1°C* | |
| * | LCD 5-digit | 10mm digit height, rotatable |
| Connection head: | BUZH | |
| Weight: | approx. 290g | |
| Protection class: | IP54 | |
| Mounting: | thread M24x1,5 | |
| Interface: | USB | |
| Supply voltage: | CR123 (3,3V Lithium) | |
| Pushbutton: | on/off | |
| Operating time: | >1000 h | Automatic switch off after 10min* |
| Dimensions: | 120 x 100 mm | D x H |
| Operating temperature range: | 0…60°C | |
| Resistance sensors: | Thermocouples: | |
| Input: | Pt100/Pt1000* | J, K, T, S, N, B* |
| Circuit type: | 2-/3-/4-wire circuit | |
| Measuring range: | -200…835°C | Definition range of the thermocouple |
| Accuracy: | 0,2°C 1Digit | 0,5°C ±1Digit |
| Measuring current: | 0.2mA | |
| Cold junction compensation: | internal | |
| Cold junction accuracy: | +/- 0,5 K | |
| Temperature drift: | 0.01 K/°C | 0.01 K/°C |
| *free programmable |
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM154 Technical specification |
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| Operating Instructions – LKM154 Installation and operating manual |
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| Communication Protocol Protocol description |
| Program / Package | Format | Language(s) |
|---|---|---|
| Software – DualDevice Parameterization |
ZIP | |
| Program – AnalogToTemperatur Conversion of analog output values (mA or V) to temperature |
ZIP |
Responsible Person in the EU:
LKM electronic GmbH
Elgersburger Straße 1
99331 Geratal
Germany
info@lkmelectronic.de
https://lkmelectronic.de/
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