Transmitter LKM453 for Pt100/Pt1000 and built-in power supply unit
The LKM453 is an analog measuring transducer for mounting on the standard rail 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 4...20mA. Lead resistances are largely compensated by means of a three-wire circuit. A two-wire circuit can also be implemented.
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.
The built-in power supply can be used independently of the transmitter or can actively supply it.
The selection menu is available for configuration.
Please request individual measuring ranges beforehand by clicking on the >>Ask about product<< button.
In the case of analog transmitters, it can occasionally happen 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 order process.
| MEASUREMENT: | ||
| Input: | Pt100/Pt1000 | 2-/3-wire circuit |
| Measuring current: | approx. 0.8 mA | depending on sensor resistance |
| Zero: | -200…600°C | |
| Span: | 20…850 K | |
| Linearity error: | <0.1% FS | |
| Loop voltage: | 10...35V DC | reverse polarity protected |
| Output: | 4..20mA | Current loop |
| Probe break: | >20mA | |
| Short circuit: | <4mA | |
| Response time: | <0,1s | |
| Operating temperature range: | 0..60°C | |
| TC: | <100ppm/°C | |
| POWER SUPPLY: | ||
| Input voltage: | 230VAC | 115 VAC version is possible |
| Frequency: | 50…60Hz | |
| Fuse: | 100mA flink | external |
| Output voltage: | 24VDC | |
| Rated current: | 50mA | |
| Connection type: | Schraubklemmen | |
| Clamping range: | 0,2…2,5mm² | |
| Protection class: | IP20 | |
| Housing material: | bruchfestes Polyamid | |
| Mounting: | EN-Tragschienen | 35mm |
| Weight: | ca. 100g |
► Operating instructions in PDF format
► Program for converting analog output values (mA or V) of transmitters into the corresponding temperature