Galvanic Applied Sciences 943-TGS-CE, Руководство по эксплуатации

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Revision 5 115 August 2021
7.3 Testing and Replacement of the Optical Fibres
When a High Integration Period warning is present, one of the possible causes of this warning
is that one or both of the optical fibres have been damaged and are not able to transmit
ultraviolet radiation normally. To eliminate or confirm the fibres as the source of the high
integration period, they can be tested as a pair or, if necessary, individually to observe their
transmission characteristics .
The fibre optic cables will generally only require change-out if they suffer from mechanical
damage or if they have been exposed directly to short wavelength ultraviolet radiation for
prolonged time periods, as when the analyzer has been operated for prolonged periods without
anti-solarant solution present.
The fibre optic cable ends terminate into SMA type connectors and are intended to be installed
with the seal body installed in the seal on the left wall of the control cabinet. There are two
cables – one connects the UV Source Lamp in the control cabinet to the top side of the
measurement cell in the oven cabinet; the other 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.
Remove the anti-solarant fluid holder and check if the High Integration Period warning is still
present when operating without anti-solarant solution BEFORE proceeding with the fibre test
procedure. If the High Integration Period warning clears when the anti-solarant fluid holder is
removed, this indicates that the anti-solarant solution has degraded to a non-usable level and
needs to be replaced as per the procedure described in section 6.3. Perform this replacement
prior to testing the optical fibres. To test the optical fibres, and replace if necessary, follow the
procedure below.
1. Place the analyzer in Offline mode by toggling the Online / Offline control toggle
(Section 4.3.1) on the Analysis 2 panel to Offline (red).
2. Place the analyzer in back purge mode by pressing the F6 key on the keypad OR by
placing the X in the Back Purge check box on the Analysis 1 panel.
3. 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. To open the control cabinet door
while the analyzer is energized, the purge controller box must first be
bypassed. Refer to Section 3.3.
DO NOT look at the end of disconnected fibres connected to the UV lamp or
place them in contact with skin. The intense UV radiation transmitted
through these fibres can cause eye and skin damage. Fibres should be
capped immediately after disconnection to prevent acidental exposure to
UV radiation.