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 standard configuration and can be used for typical settings.
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.
| Measuring resistor | Specification limit in °C | ||
| Pt100 | -200 | ... | 850 |
| Pt1000 | -200 | ... | 450 |
| 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 |
Documents
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM453 Technical Specification |
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| Operating Instructions – LKM453 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/