Functional Test Of The Shutdown Module - ABB HART Industrial IT enabled TZIDC Operating Instructions Manual

3.5.1 Functional test of the shutdown module

!
WARNING
Proceed as described below:
1. Remove the cover
2. Alternately set the slide switch (1) from the "On" position in the middle to the
top and bottom position ("Off1" or "Off2") and check that the actuator is depres-
surized properly.
Fig. 21
3. Set the slide switch to the "On" position in the middle again.
4. Replace the cover.
30
If the optional shutdown module is used, it must be subject to a functional
test every two years at the latest to ensure full operational reliability in
compliance with DIN V 19250. Otherwise, the AK4 approval will lapse.
1
Slide switch (service switch) of the shutdown module
Electro-pneumatic positioner TZIDC
Off1
On
Off2
41/18-79 EN