Galvanic Applied Sciences 943-TGX, Руководство по эксплуатации

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Revision 4 80 August 02, 2019
7.4 Changing the Fibre Optic Cable (s)
The Fibre Optic Cables will generally only require change-out if they suffer from mechanical
damage or if they have been exposed directly (in the absence of Anti-Solarant Solution) to
the UV Source radiation for definite time periods.
The Fibre Optic Cable ends terminate into SMA type connectors and are intended to be
installed with the Seal body at the control cabinet. There are two cables:
•
The shorter of the two fibres connects the UV Source Lamp in the control cabinet to the top
side of the measurement cell in the oven cabinet.
• The longer of the two (2) fibres connects the Spectrometer in the control cabinet to the
bottom side of the measurement cell in the oven cabinet.
The SMA connectors only need to be finger-tight. Do not overtighten the
connectors as this may damage the cable.
To change a Fibre Optic Cable:
a) Click the On Line / Off Line switch to indicate
Off Line
.
b) Place the analyzer in back purge mode. This can be done by navigating to the Back
Purge
field on the Analysis 1 page and pressing
Enter
to place an “x” in the box
c) Access the purged control cabinet following proper user company and/or regulatory
agency procedure.
The control cabinet door may NOT be opened while the analyzer is
energized UNLESS the area is known to be non-hazardous. Observe all the
warning labels on the analyzer enclosures.
DO NOT disconnect and/or replace Fibre Optic Cables with the UV Source
Lamp on. Intense UV radiation can result in severe eye and skin damage.
d) Turn the UV Source Lamp off by placing the UV Lamp switch to the OFF position.
e) Turn the oven heaters off by locating the Heater AC Power fuse terminal on terminal
block ACTS:25. Lift the fuse terminal tab opening the terminal block and thus
disconnecting the Heater AC Power fuse. Refer to Figure 9-2.
f) Locate the inter-cabinet seal fitting associated with the Fibre Optic Cable being replaced
and unscrew the retaining cap. Lift out the plastic retainer and pull gently outward on the
cable and rubber seal plug until free from the fitting.
Be careful that the ends of the Fibre Optic Cables do not become abraded
by contact with other surfaces. Installing a protective plastic cap onto the
end of the fibre is recommended.