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8013741/16LH/V1-7/2020-04| SICK
O P E R A T I N G I N S T R U C T I O N S | MCS300P Ex
Subject to change without notice
OPERATION
4
4.3
Commissioning of MCS300P Ex
4.3.1
Check before commissioning
●
Enclosures are closed (enclosure cover, cable inlets, enclosure openings).
●
Permanent protective gas feed is ensured (
).
4.3.2
Commissioning procedure
Commissioning procedure for MCS300P Ex category 3G
1
Switch the main power supply of the pressurized enclosure system on (at an external
source).
2
The pressurized enclosure system will start pre-purging the enclosure with protective
gas.
The Ex control unit will signal the end of the pre-purge phase.
3
Switch the main power supply of the MCS300P Ex on (at an external source).
▸
Commissioning procedure for MCS300P Ex category 2G
1
Switch the main power supply of the pressurized enclosure system on (at an external
source).
2
The pressurized enclosure system will start pre-purging the enclosure with protective
gas.
3
The MCS300P Ex will be switched on automatically after a few minutes.
4
The
green
“
POWER
” LED on the MCS300P Ex display will signal that supply voltage is
present.
5
“SICK
” will appear on the screen.
6
The Measuring screen will then be displayed (
see “Display (example: Menu “Diagno-
7
Until the measuring system reaches its measuring operating state (e.g., the operating
temperature has not yet been reached):
– Only the green “
POWER
” status LED will light.
– Display will read: “
Status: Heating
”
– Classification “
Uncertain
” (all measured values blink).
8
Measuring operating state reached:
– Only the green “
POWER
” status LED will light.
– Display will read:
“Status: Measuring
” (
see “Display (example: Menu “Diagnosis”)”,
– No measured value blinks (If a measured value blinks: Measured value invalid,
“Malfunction messages”, page 65
).
9
Set a new zero point after an adequate run-in phase of the device (min. 4 hours) (
).
See also System Documentation.
Further information on the pressurized enclosure system
→
see pressurized enclosure
system Manual delivered with the system.