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: | Pt100, Pt1000, Ni100, Ni1000 ,Resistors | programmable |
| entire measuring range: | -200...850°C | Pt100 |
| -200...300°C | Pt1000 | |
| -60...250°C | Ni100 (TK6180, Tk5000) | |
| -60...200°C | Ni1000 (TK6180, Tk5000) | |
| 0...400Ω, 0...2000Ω | Resistors | |
| Connection type: | 2-/3-/4-wire | programmable |
| Measuring current: | 0.25mA | |
| Current consumption: | max. 10mA | |
| Supply voltage: | 15..35 VDC, 15..26 VAC | reverse polarity protected |
| Zero point: | programmable | |
| Span: | programmable | |
| Resolution: | 14 bit | |
| Linearization accuracy: | 0,1% | |
| Measurement accuracy: | 0,2% | from measuring range |
| Measurement rate: | 2/s | |
| Output: | 0...10V | other output voltage possible |
| Sensor break: | >10V | . |
| Short circuit: | 0V | |
| Clamp type: | Screw terminals | 0,2...2,5mm2 |
| Temperature coefficient: | 0.015 K/°C | adjusted temperature range 0...100°C |
| Operating temperature: | -25...70°C | . |
| Dimension: | 75x25x53mm | H x W x D |
| Weight: | 60g | . |
| EMC: | EN 61326-1 EN61326-2-3 |
Emission and noise immunity |
► 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