Transmitter LKM114 for Pt100/Pt1000
The LKM114 is a digital, configurable transmitter for mounting in the connection head type B and is designed for Pt100 and Pt1000 measuring resistors according to DIN EN 60751. The sensor is recognized automatically. It converts the temperature-dependent resistance value of the sensor into a standard signal of 0...10V. 12 different measuring ranges can be set via four DIP switches. Lead resistances are largely compensated by means of a three-wire circuit. A two-wire circuit can also be implemented. Due to the complete encapsulation with polyurethane, the components are particularly protected.
With a zero point controller, a small correction can be made on site.
The following measuring ranges can be configured:
| -100...100°C** | -20...150°C | 0...300°C | |
| -50...50°C** | 0...50°C* | 0...400°C** | |
| -40...60°C** | 0...100°C | 0...500°C** | *Preset |
| -30...70°C** | 0...200°C | 0...600°C** | **Pt100 only |
| Feature | Value | Remark |
|---|---|---|
| Input | Pt100 / Pt1000 | self-detecting |
| Total measurement range | -100 – 600 °C | Pt1000 up to 300 °C (selectable via DIP switches) |
| Number of ranges | 12 | |
| Linearity error | 0.1 % FS | |
| Measurement current | 0.25 mA | |
| Supply current | max. 10 mA | |
| Supply voltage | 15 – 35 VAC | reverse polarity protected |
| Resolution | 0.1 °C | |
| Measurement accuracy | 0.3 % | of 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 | 0.13 – 1.5 mm² |
| Temperature coefficient | < 0.015 K/°C | for range set to 0 – 100 °C |
| Operating temperature | -40 – 85 °C | |
| Dimension | 44.5 × 27 mm | D x H |
| Weight | 32 g | |
| EMC | EN 61326-1 EN 61326-2-3 |
emission and immunity |
Documents
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM114 Technical specification |
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| Operating Instructions – LKM114 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 | |
Responsible Person in the EU:
LKM electronic GmbH
Elgersburger Straße 1
99331 Geratal
Germany
info@lkmelectronic.de
https://lkmelectronic.de/
