Transmitter LKM264 for resistance sensors
The LKM264 is a digital, programmable measuring transducer for mounting on the standard rail and can be adjusted for different resistance sensors according to DIN EN 60751. It converts the temperature-dependent resistance value of the sensor into a standard signal of 0...10V or inverse 10...0V. Lead resistances are compensated by means of a four-wire circuit. A three- or two-wire circuit can also be implemented.
The transmitter is delivered configured according to the customer's requirements. 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".
For a small correction an offset can be set by software.
For configuration the selection menu is available.
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 20°C.
| Input | Measurement range |
|---|---|
| Pt100 | -200 – 850 °C |
| Pt1000 | -200 – 300 °C |
| Ni100 (TK6180, TK5000) | -60 – 250 °C |
| Ni1000 (TK6180, TK5000) | -60 – 200 °C |
| Resistance | 0 – 400 Ω, 0 – 2000 Ω |
| Feature | Value | Remark |
|---|---|---|
| Input | Pt100, Pt1000, Ni100, Ni1000, resistances | configurable |
| Connection type | 2-/3-/4-wire | configurable |
| Measuring current | 0.25 mA | |
| Current consumption | max. 10 mA | |
| Supply voltage | 15 – 35 VDC, 15 – 26 VAC | reverse-polarity protected |
| Zero | programmable | |
| Span | programmable | |
| Resolution | 14 bit | |
| Linearization accuracy | 0.1 % | |
| Measurement accuracy | 0.2 % | depends on measurement range |
| Measurement rate | 2/s | |
| Output | 0 – 10 V | other output voltages possible |
| Sensor break | > 10 V | |
| Short-circuit | 0 V | |
| Terminal type | Screw terminals | 0.2 – 2.5 mm² |
| Temperature coefficient | 0.015 K/°C | configured temperature range 0 – 100 °C |
| Operating temperature | -25 – 70 °C | |
| Dimensions | 75 × 25 × 53 mm | H x W x D |
| Weight | 60 g | |
| EMC | EN 61326-1 EN 61326-2-3 |
Emission and immunity |
Documents
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM264 Technical Specification |
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| Operating Instructions – LKM264 Installation and operating manual |
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Software
| Program / Package | Format | Language(s) |
|---|---|---|
| Service Program – LKM264 for Windows-PCs Parameterization Software |
ZIP |  |
| Program – AnalogToTemperatur Conversion of analog output values (mA or V) to temperature |
ZIP | |
