Commissioning
Ex p Control unit
APEX
py
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01-37A2-7D0006_py_Manual_Exp-Control-Unit_20210923_a_en.docx
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8
Commissioning
General
The following sections describe the initial commissioning of the Ex p control unit.
This means that it is described in detail how the Ex p control unit is set to the Ex
p equipment created.
COMMISSIONING
The operating instructions for the Ex p equipment must be
used for commissioning a set and certified Ex p equipment.
Sequence for the settings
The following procedure is recommended when setting the function parameters:
*
= Setting is to be performed in case of automatic flushing
Parameterization of purge gas valve
For the Ex p control unit, purging gas valves are available in the "Proportional" or
"Digital" version. The difference between the two purging gas valve types is the
mode of operation:
Digital purging gas valve = on/off valve. Leakage air compensation takes place
via the setting of the manually adjustable leakage air needle.
Proportional valve = regulating valve. During the purging phase, the internal
pressure is regulated to 87.5% of p5 and during the operating phase to po.
Start
Ex p settings
Valves
Purge mode
Pressure parameter
Characteristics
*
Enclosure parameter
*
Options
Settings
Temp.-Sensors
Extended
Network
Functional test
Language
Settings backup
Parameter
Ex p parameters
