Transmitter LKM292 for thermocouples
The LKM292 is a digital, programmable transmitter with galvanic isolation between input and output for mounting on the standard rail. It can be set for different thermocouples according to DIN EN 60584 and DIN 43710. It converts the temperature-dependent thermoelectric voltage of the sensor into a standard signal of 0...10V or inverse 10...0V. The temperature compensation takes place in the transmitter itself.
The transmitter is delivered in a customer-specific configuration. 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 a zero point controller a small correction can be done on site. Additionally an offset can be set by software.
The selection menu is available for configuration.
When entering your individual measuring range, please note the measuring range of the selected sensor. This can be found in the technical data. The minimum span is 200°C.
Interesting for your project► Discover the LKM200 with even more functions and a USB-C interface.
| Input: | Thermocouples K, J, L, T, U, E, N, S, B, R, C |
definition range s.Tab.2 |
| Zero: | >-200...600°C | depending on the thermocouple |
| Span: | >50 K | |
| Linearity error: | <0,3K | |
| Measurement error | <0,2% | |
| Cold junction error: | <0,5°C | |
| Supply voltage: | 10...35 VDC ,10...26 VAC | reverse polarity protected |
| Galvanic isolation: | >2.5 kV | test voltage |
| Max. Current consumption: | 20mA | |
| Output: | 0...10V / 10...0V | programmable |
| Response time: | <0,5s | |
| Sensor break: | >10V | Typically 11V |
| TC: | <100ppm/°C | |
| Operating temperature range: | -40...85°C | |
| Humidity: | <95% | |
| Mounting: | 35mm DIN rail | |
| Material: | Polycarbonate | |
| Dimensions: | 75x25x53mm | H x W x D |
| Clamping type: | Screw terminals | |
| Clamping range: | 0,2...2,5mm² | |
| Weight: | approx. 60g | |
| Vibration: | 5g/10...200Hz | |
| EMV: | EN 61326-1 EN 61326-2-3 |
Emission and immunity |
Temperature measuring ranges of thermocouples:
| Type | Min. value in °C | Max. value in °C |
| B | 300 | 1820 |
| C | 0 | 2315 |
| E | -150 | 950 |
| J | -200 | 1200 |
| K | -200 | 1370 |
| L | -200 | 900 |
| N | -200 | 1300 |
| R | -50 | 1760 |
| S | -50 | 1760 |
| T | -250 | 400 |
| U | -200 | 600 |
Documents
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM292 Technical Specification |
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| Operating Instructions – LKM292 Installation and operating manual |
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Software
| Program / Package | Format | Language(s) |
|---|---|---|
| Service Program – LKM292 for Windows-PCs Parameterization Software |
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/
