User Documentation

Purpose of the product
8 1482900000/01/11.2017
4. Purpose of the product
The ACT20X-HTI-SAO is an one channel, the ACT20X-2HTI-2SAO is a two channel temperature transducer
for transmission of signals to the safe area from temperature sensors (Pt, Ni and TC) or current sources
installed in the hazardous area.
The device can be mounted in the safe area and in Zone 2 / Division 2 and receive signals from Zone 0, 1, 2,
20, 21, 22 and mines or Class I/II/III, Division 1, Group A-G. Error events, including cable breakage, are
monitored and signaled via the individual status relay. The ACT20X-(2)HTI-(2)SAO has been designed,
developed and certified for use in SIL 2 applications according to the requirements of IEC 61508.