PAC R6000S - Page 70

Page 68 of 92 PAC L.P., All Rights Reserved, 2015
R6000S Operation Manual: Rev. G
Symptom
Probable Cause
Corrective Action
UV Lamp is OFF
Power Supply connector not
connected
Ensure power supply
connector is plugged into UV
Lamp assembly.
Defective UV/PMT Power
Supply
Check for 12 VDC. Replace
UV/PMT PS.
Defective UV Power Supply
PCB
If 12 VDC is supplied to the
UV power supply and there is
no AC voltage to the lamp, the
UV power supply is bad.
Replace UV PS PCB.
Blown Main Power Fuse or UV
Lamp Fuse
Replace Fuse.
Defective UV Lamp
If 100 VDC or greater is
supplied to lamp and it doesn’t
light, the lamp is bad. Replace
UV Lamp.
No Output From Detector
Photomultiplier tube (PMT)
Loose or defective HV PS
cable
Reconnect or replace HVPS
cable.
No High-Voltage
See symptom “Erratic or Low
Baseline”, following pages.
UV 12 VDC PS defective or
output is shorted
Check for shorted 12DCV
output and remove short or
replace supply.
Defective HV PS PCB
Replace HV PS PCB.
System Fail Alarm Activated
Low-Pressure Alarm – Low
Gas Pressures
Ensure Carrier and Oxygen
are supplied at 35psig.
Furnace Temperature
Controller Temperature Out of
Range (< 980°C or >1125°C)
Check Furnace Temperature
Settings and change settings if
necessary.
Low Total Gas flow through
analyzer
Check for gas leaks.
No Response to Standard or
Sample
Defective 12 VDC Power
Supply, fuse or cable (No PMT
high-voltage)
Replace fuse, cable or supply
as necessary. Use High-
Voltage Adjustment procedure
to check high-voltage setting.
Check UV/PMT power supply
for 12 VDC.
UV Lamp Not Lit
(UV bracket not warm to
the touch)
Check for 12 VDC at UV/PMT
power supply (DWGs B42165,
B42145 or B42146 [voltage
specific]).