Description
The EKMB sits in the connection head and turns the voltage of a thermocouple into an impressed current of 4 to 20 mA. Eight thermocouple types are supported — K, S, R, J, T, N, B and E — and together they cover −260 to 1820 °C. The output is galvanically isolated against the input with 1 kV AC and is linearised in the device; the transmission error is at most 0.1 % of full scale or 0.2 °C, the resolution 16 bit. The device is supplied out of the current loop with 6 to 32 V DC and needs no auxiliary energy of its own. It is set without contact over RFID: type of thermocouple and measuring range can be changed at any time with the EKMH configurator and its software. The black PA66 case measures Ø 45 × 23 mm, weighs about 35 g and is rated IP20 for mounting inside the connection head.
Input and output
- Type K −260 … 1360 °C
- Type S and R −40 … 1760 °C
- Type J −200 … 1200 °C · Type B 40 … 1820 °C
- Type T −260 … 400 °C · Type N −260 … 1280 °C
- Type E −260 … 940 °C
- Output 4 … 20 mA, isolated, linearised
- Transmission error max. 0.1 % FS or 0.2 °C
- Isolation voltage 1 kV AC
Device and connection
- Supply 6 … 32 V DC out of the current loop
- Configuration over RFID (NFC)
- Case synthetics PA66, black
- Dimensions Ø 45 × 23 mm, approx. 35 g
- Terminal screws, conductor to 1 mm²
- Protection class IP20
- Operating temperature −40 … 85 °C
- EN 61000-6-4 and EN 61000-6-2
All technical data, dimensions and available versions are listed in the datasheet for download.