Oldham MX62, Руководство пользователя

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Page 74
b) With a proof test interval of two years:
PFD = 5.88 x 10
-5
c) With a proof test interval of three years:
PFD = 8.89 x 10
-5
The calculated values are based on the assumption that the specified intervals for
service and maintenance of WinPro

/ MX62 and for the connected detectors are
kept. These service intervals have to be defined before operation of the detection
system.
14.6. Directions for use in safety related applications

For safety related applications it has to be observed that WinPro

/ MX62 is
not exposed to vibrations.

All remote modules and the connection lines that are part of a safety related
function have to be protected against mechanical damage and EMC
influences.

The relay basis module (RBM) has to be connected via bus cable. This is also
mandatory when installed inside the WinPro

/ MX62 cabinet.

All channel failures have to be signaled and evaluated as collective fault by
minimum one (1) relay contact. Short circuit and cable break in the lines to
the connected detectors have to be detected as failure. Corresponding
maintenance activities have to be carried out in an appropriate period.

Special conditions of detectors that are stated actively on the signal output,
e.g. ≤ 2 mA, under scale and over scale have to be detected and evaluated by
WinPro

. For detectors of Oldham this is ensured automatically.

It is not allowed to use ADVANCED relay configurations for safety related
functions.
Proof test:
The complete safety related functionality of WinPro / MX62 has to be tested
regularly in intervals of the proof test. Therefore see also Chapter 5 -
Commissioning and maintenance.
The data processing of WinPro is based on the signal inputs of the connected
detectors. The functionality of WinPro is tested by applying test gas on the
detectors or by connecting of electrical signal transducer (mA-Geber) to the
WinPro.
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