Mounting
4.4 Mounting and connecting
MicroSAM
66 Operating Instructions, 06/2012, C79000-G5376-C560-07
4.4.12 Connecting the HMI device
The gas chromatograph is operated using a PC or laptop.
WARNING
Protection against explosion
You require a fire permission certificate if you transport a PC or laptop through the
hazardous zone.
Opening the gas chromatograph in the hazardous area with the power supply switched
on is only permissible if you have a fire permission certificate.
Connect the Ethernet port of the PC to the corresponding leads of the gas chromatograph
(see table Installing the communications cable (Page 61)).
4.4.13 Connecting the HMI device on site (only for servicing purposes)
You must open the chromatograph in order to connect the HMI device for servicing
purposes.
Procedure
WARNING
Hazardous area
You require a fire permission certificate in order to carry out servicing work on the gas
chromatograph in a hazardous area.
Due to the hot components and residual electrical charges in the gas chromatograph,
explosions may occur if you open the housing prematurely. A corresponding warning
label is present on the device.
It is therefore essential that you wait for at least 65 minutes every time before you open
the chromatograph!
Breathing device
The breathing device must not be closed!
Only use tool to open the cover.
The directives for explosion protection specify that the cover of the chromatograph may
only be opened using a tool. These directives are complied with using the hexagon socket-
head bolt
②!
1. Loosen the hexagon socket-head bolt SW 1.5 ② on the securing ring of the inspection
window.
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