Table of Contents
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Contents
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1. Introduction
The Ex-Time 40 and the Ex-Time 50 are quartz movement wall clocks
designed for internal use in Ex-hazardous areas classified as Zone 1
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and 2 according IEC/CENELEC or division 1 according to NEC.
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2. Safety Advice
These Operating Instructions contain information and safety regula-
13-14
tions which must be followed to ensure safe and reliable operation of
the unit under the described conditions.
14
Failure to follow the information and instructions contained in these
Operating Instructions can have dangerous consequences or may vio-
late applicable rules and regulations.
14-15
Please take the time to carefully read through these Operating
Instructions before you start using the unit.
In the event of any doubt or discrepancies (e.g. due to errors in trans-
15-16
lation and/or printing), the original German language version of the
Operating Instructions should be referred to.
17-18
3. Faults and Damage
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If there is any reason to suspect that the safety or integrity of the unit
has been compromised, then it must be taken out of operation imme-
18
diately and removed from the Ex-zone without delay.
Precautionary measures must be taken in order to prevent any further
use of the unit in the Ex-zone. It is recommended that the unit should
19
be then sent to the manufacturer to be examined.
The safety and integrity of the unit may be compromised by,
20
for example:
- External damage is evident on the housing.
- The unit has been subjected to excessive
21-22
-
loads for which it is not designed.
- Incorrect storage of the unit.
23-24
- Damage sustained in transit.
- Correct certification is illegible.
- Functionality errors occur.
- Permitted tolerances or threshold values have been exceeded.
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