Transmitter LKM426
Transmitter LKM426 for Pt100/Pt1000
The LKM426 is an analog transmitter for mounting in an IP64 housing and can be designed for the Pt100 or Pt1000 measuring resistor according to DIN EN 60751. It converts the temperature dependent resistance value of the sensor into a standard signal of 0...10V. The lead resistance of the two-wire circuit can be compensated on site with the adjustment controller. In order to compensate lead resistances to a large extent, a three-wire circuit is possible on request. The components are specially protected by dip coating.
The transmitter is supplied calibrated to customer specifications. By means of span and zero controllers, a subsequent fine adjustment can be carried out on site.
Configuration and Selection:
The selection menu is available for standard configuration and can be used for typical settings.
The selection menu is available for standard configuration and can be used for typical settings.
Custom Measurement Ranges:
These can be specified directly in the optional comment field below the selection menu.
Important Conditions: Please ensure that the measurement range falls within the specification limits of the respective sensor and has a minimum span of 20K. This guarantees that the desired range is technically feasible.
Our team will review your order for feasibility. If any issues arise, we will contact you to find a suitable solution.
These can be specified directly in the optional comment field below the selection menu.
Important Conditions: Please ensure that the measurement range falls within the specification limits of the respective sensor and has a minimum span of 20K. This guarantees that the desired range is technically feasible.
Our team will review your order for feasibility. If any issues arise, we will contact you to find a suitable solution.
| Resistance thermometer | Specified range in °C |
|---|---|
| Pt100 | -200 – 850 |
| Pt1000 | -200 – 450 |
| Parameter | Value | Remark |
|---|---|---|
| Input | Pt100 / Pt1000 | 2-wire configuration |
| Measuring current | approx. 1 mA | |
| Zero point | -200 – 600 °C | |
| Span | 50 – 850 K | |
| Linearity error | < 1% FS | depending on measuring range |
| Supply voltage | 15 – 35 VDC, 15 – 26 VAC | reverse polarity protected |
| Max. current consumption | 10 mA | |
| Output | 0 – 10 V | |
| Sensor break | > 10 V | |
| Sensor short circuit | = 0 V | |
| Response time | < 0.1 s | |
| TC | < 100 ppm/°C | |
| Operating temperature range | -40 – 85 °C | under the specified installation conditions |
| Humidity | < 95 % relative humidity | |
| Mounting | PK101 enclosure | or similar |
| Dimensions | 48 x 41 mm | |
| Terminal type | Screw terminals | |
| Wire gauge range | 0.13 – 1.5 mm² | |
| Weight | approx. 20 g | |
| EMC | EN 61326-1 EN 61326-2-3 |
emission and immunity |
Documents
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM426 Technical Specification |
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| Operating Instructions – LKM426 Installation and operating manual |
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Software
| Program / Package | Format | Language(s) |
|---|---|---|
| Program – AnalogToTemperatur Conversion of analog output values (mA or V) to temperature |
ZIP | |
