Transmitter LKM146 for resistance sensors
The LKM146 is a digital, programmable transmitter for mounting in the connection head type J (MA) and can be set for various resistance sensors according to DIN EN 60751. It converts the temperature dependent resistance value of the sensor into a standard signal of 4...20mA or inverse 20...4mA. Due to the complete encapsulation with polyurethane, the components are particularly protected.
The transmitter is supplied configured to customer specifications. Subsequent changes of the sensor and measuring range can be made with our communication interface "LKM S1" with adapter A2 and a PC. For this purpose, the optional ribbon cable must be connected to the transmitter. The required program is available free of charge in the tab "Downloads".
For a small correction an offset can be set by software.
For configuration the selection menu is available.
When entering your individual measuring range, please note the measuring range of the selected sensor. This can be found in the technical data. The minimum span is 20K.
| Input: | Pt100/Pt1000 Ni100/Ni1000 TK6180 Ni100/Ni1000 TK5000 Widerstand |
-200…850°C, -60…250°C -60…260°C 0…4000Ω |
| Measuring ranges: | In the definition area freely selectable |
|
| Measuring current: | 0.25mA | |
| Loop voltage: | 10...35 VDC | reverse polarity protected |
| Zero point: | -200...600°C | programmable |
| Span: | 20...850 K | programmable |
| Resolution: | 16 bit input | 14 bit output |
| Linearity error: | <0.1% FS | |
| Output: | 4...20mA | current loop |
| Probe break: | >20mA | |
| Short circuit: | <4mA | |
| Measurement rate: | 1/s | |
| TC: | <0.015 K/°C | measuring range 0...100°C |
| Operating temperature range: | -40...85°C | |
| Humidity: | <95% | |
| Mounting: | J-head | |
| Dimension: | 25x14.5 mm | D x H |
| Potting compound: | Polyurethane, black | |
| Clamping type: | Screw terminals | |
| Clamping range: | 0,13...0,75mm² | |
| Weight: | approx. 10g | |
| Vibration: | 5g/10...200Hz | |
| EMC: | EN 61326-1 EN 61326-2-3 |
Emission and noise immunity |
Operating instructions in PDF-format
Software for LKM145/ LKM146 / LKM400
Program for converting analog output values (mA or V) of transmitters to the corresponding temperature