WIKA operating instructions attachable indicator model A-IAI-1
8
EN
14016825.04 07/2021 EN/DE
3. Safety
The skilled electrical personnel have been specifically trained for the work
environment they are working in and know the relevant standards and
regulations.
The skilled electrical personnel must comply with current legal accident
prevention regulations.
3.4 Additional safety instructions for instruments per ATEX
WARNING!
Non-observance of these instructions and their contents may
result in the loss of explosion protection.
Electrical specifications in accordance with the EC-type examination
certificate.
Input circuit:
In Ex ia/ib IIC/IIB intrinsic safety ignition protection.
Only for connection to certified intrinsically safe circuits.
Maximum values:
U
i
= 28 V
I
i
= 100 mA
P
i
= 1,200 mW
Maximum effective internal capacitance Ci < 13 nF
The maximum effective internal inductance is negligibly small.
WARNING!
Special conditions for safe operation
1. No repairs or alterations may be carried out on the instru-
ment by the customer. For maintenance or repair, the instru-
ment must be returned to the manufacturer.
2. Opening the instrument is only permitted outside of the Ex
area.
