Transmitter LKM406
Transmitter LKM406 for Pt100/Pt1000
The LKM406 is an analog transmitter and can be designed for the Pt100 or Pt1000 measuring resistor according to DIN EN 60751. Its design is ideally suited for mounting in tubular housings. It converts the temperature-dependent resistance value of the sensor into a standard signal of 4...20mA. Lead resistances are largely compensated by means of a three-wire circuit.
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, if not encapsulated.
There are three variants available:
- without casting compound and with Hirschmann plug type GSP
- with casting compound and with Hirschmann plug type GSP
- without casting compound and without plug
With this arrangement, customer-specific probes with integrated transducer, such as our Type406 or Type409, can be realized.
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- / 3-wire configuration |
| Measuring current | approx. 0.8 mA | depending on sensor resistance |
| Zero point | -200 – 500 °C | value for 4 mA |
| Span | 20 – 850 K | zero point + span value 20 mA |
| Linearity error | < 0,1% FS | |
| Loop voltage | 10 – 35 V DC | reverse polarity protected |
| Output | 4 – 20 mA | current loop |
| Sensor break | > 20 mA | |
| Sensor short circuit | < 4 mA | |
| Response time | < 0.1 s | |
| Temperature coefficient | < 100 ppm / °C | |
| Operating temperature range | -40 – 85 °C | |
| Humidity | < 95 % | relative humidity |
| Loop connection | Hirschmann connector type GSP | pins 1 (+) and 2 (-) |
| Sensor connection | exposed solder contacts | |
| Optional potting compound | black polyurethane | |
| PCB dimensions | 26 x 15.5 x 12.5 mm | L x W x H |
| PCB deviation from plumb | 5 ° | |
| Weight | approx. 10 g (unpotted) | |
| EMC | EN 61326-1 EN 61326-2-3 |
emission and immunity |
Documents
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM406 Technical Specification |
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| Operating Instructions – LKM406 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 | |