MNL000425.doc
Revision 0
08/26/2016
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
Page
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9
1.
Check Probe Not Installed alarm. Remove temperature probe from bubbler. The
green START lamp should turn off shortly afterwards and the alarm should be
display on the LCD screen. If the green START lamp does not turn off, the
VaporGuard® is not operating correctly.
2.
Check Thermal Trip. From the model number, determine the thermal cutout
temperature (see section 5.9).Tape the thermocouple to the Temperature Probe
bulb end. For the lowest trip temperature, hold the probe ends between thumb
and forefinger to slowly approach the cutout temperature. Use a hot air gun to
test the higher trip temperatures. The main display will show “Thermal Trip”
alarm on the LCD display. If this does not occur the VaporGuard® is not
operating correctly. Place probe back in bubbler and clear alarms. Press the
START switch, however dependent on the temperature reading, the unit may
need to cool down.
3.
Check cooling fan. Visually check that the fan is running and that air is being
exhausted at the outlet side of the unit. Also, nothing should be obstructing the
fan inlet and exhaust outlet.
7.4
Maintenance Schedule
The VaporGuard® is designed to have minimal maintenance activity associated with its
temperature control and level detection electronics. Calibration and testing, and any
resulting maintenance, should be performed at regular intervals. Refer to table 7-2
below.
Table 7‐2
Recommended Maintenance Schedule
Check/Calibration
Interval
Procedure
Temperature Control
Check
24 Months (or when temp
setpoint is changed)
Section 7.2.2 & 7.2.3
Analog Output Calibration
24 Months
Section 7.2.4 & 7.2.5
Level Sense Control Check
(Quartz Bubbler)
12 Months
Section 5.5.4
Safety Test
12 Months
Section 7.3
