Transmitter LKM408 for Pt100/Pt1000
The LKM408 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 0...10V. The lead resistance of the two-wire circuit can be compensated on site with the adjustment controller.
The transmitter is supplied calibrated to customer specifications. Optionally, it can be supplied with the Hirschmann plug type GSP as well as without plug. With this arrangement, customer-specific probes with integrated transmitter, such as our Type408, can be realized. By means of span and zero controllers, a subsequent fine adjustment can be carried out on site.
The selection menu is available for configuration.
Please request individual measuring ranges beforehand using the >>Ask about product<< button.
In the case of analog transmitters, it may occasionally be the case that the desired measuring range cannot be realized. If the individual measuring range is confirmed by us, it can be entered in the >>YOUR COMMENTS<< field at the end of the ordering process.
| Input: | Pt100/Pt1000 | 2-wire circuit |
| Measuring current: | approx. 0.8mA | |
| Zero: | -200…500°C | Value for 0V |
| Span: | 20…850 K | zero+span=10V |
| Linearity error: | <1% FS | depending on span and zero point |
| Accuracy: | approx. 0.3° (with a span of 100°C) approx. 0.7° (with a span of 200°C) |
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| Supply voltage: | 15...35 VDC, 15...26 VAC | reverse polarity |
| Max. Current consumption: | 10mA | |
| Output: | 0...10V | |
| Sensor break: | >10V | |
| Sensor short circuit: | =0V | |
| Response time: | <0,1s | |
| TC: | <100ppm/°C | |
| Operating temperature range: | -40…85°C | |
| Humidity: | <95% | rel. Humidity |
| Connection: | Hirschmann connector type GSP | Pole 1 (+24V), Pole 2 (- GND), Pole 3 (0...10V) |
| Sensor connection: | exposed solder contacts | |
| Optional Potting compound: | Polyurethane black | |
| Printed circuit board dimensions: | 26x15, 5x12,5mm | L x W x H |
| PCB deviation from solder: | 5° | |
| Weight: | approx. 10g (not poured) | |
| EMC: | EN 61326-1 EN 61326-2-3 |
Emission and immunity |
► Operating instructions in PDF format
► Program for conversion of analog output values (mA or V) of transmitters to the corresponding temperature