Description
The EKME measures with a thermocouple and gives the value as 4 … 20 mA in a two-wire current loop. Type K is the standard; type J, B, N, R, S, T, E, C, A and L are available to order, together covering −270 to +1820 °C. The measuring range is freely configurable, the smallest span 50 K with type K, J, N and T, 150 K with R and S and 200 K with B. The cold junction is compensated in the device with an error of at most ± 1.5 K. Two housings with identical electronics are available: the head version of Ø 44 × 22.5 mm for DIN connection heads of form B, fully potted and rated IP00, and the rail version of 99 × 113.6 × 17.5 mm for standard rails to IEC 60715, rated IP20. Sensor break and range violation are monitored and signalled to NAMUR NE43; a drag pointer keeps the highest ambient temperature the device has seen.
Measurement and output
- Type K −270 … +1300 °C, standard
- Type J · B · N · R · S · T · E · C · A · L
- Smallest span 50 K, type-dependent
- Cold junction error ≤ ± 1.5 K
- Deviation type K 0.6 K + 0.06 % of value
- Output 4 … 20 mA, 3.8 … 20.5 mA to NE43
- Fault signal configurable to NAMUR NE43
- Damping 1 … 60 s, configurable
Device and environment
- Head version Ø 44 × 22.5 mm, IP00, 50 g
- Rail version 99 × 113.6 × 17.5 mm, IP20, 200 g
- Case PBT, glass-fibre-reinforced
- Supply DC 10 … 35 V, two-wire loop
- Ambient −40 … +85 °C
- Option −50 … +105 °C, head version
- Terminals 0.14 … 2.5 mm², 0.5 Nm
- Option Ex ia to ATEX and IECEx
All technical data, dimensions and available versions are listed in the datasheet for download.