Transmitter LKM262 for thermocouples
The LKM262 is a digital, programmable measuring transducer for mounting on the standard rail and can be adjusted for different thermocouples 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 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.
| Input: | Thermocouple K, J, L, T, U, E, N, S, B, R, C |
Definition range s.Tab. 2 |
| Zero: | >-200...600°C | depending on thermocouple |
| Span: | >50 K | |
| Linearity error: | <0,3K | |
| Measurement error | <0,2% | |
| Cold junction error: | <±0,5°C | |
| Supply voltage: | 15..35 VDC , 15..26 VAC | reverse polarity protected |
| Max. Current consumption: | 20mA | |
| Output: | 0...10V / 10...0V | programmable |
| Measuring rate: | 2/s | |
| Sensor break: | >10V | typical 11V |
| Short circuit: | Voltage value for room temperature | |
| Response time: | <0,5s | |
| 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 | |
| EMC: | EN 61326-1 EN 61326-2-3 |
Emission and immunity |
Temperature neasuring range of thermocouples:
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► Operating instructions in PDF-format
► Service program for LKM26X / 28X
► Program for converting analog output values (mA or V) of transmitters to the corresponding temperature