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COPYRIGHT 2008, ALL RIGHTS RESERVED, Original Instructions
PERMA PURE LLC
Model 3300 User’s Manual
Doc. #532: Revision: 000
Page 11 of 14
Troubleshooting and Maintenance Guide
Symptom
Diagnostic
Fix
No LED display
Not plugged in
Power switch is off
Fuse blown
Power supply defect
12 VDC red-black
Check jumper JP1
Ribbon cable loose
Defective control board
Plug in instrument
Turn on power
Replace fuse
Replace power supply
Jumper 1-2; 3-4; 5-6
Tighten ribbon cables
Replace control board
Manual Control
(Local)
Switches have no effect
Inadequate sample flow
No system cal gas flow
No direct cal gas flow
Remote/Local switch in remote
Low sample pressure
No cal gas from bottle
Cal gas solenoid not operating
Flow drawer regulator set <10psig
Cal gas Flowmeter closed
Block/bleed solenoid constantly
vents
System cal gas solenoid valve
defective
Direct cal gas solenoid valve
defective
Select local
Adjust sample pressure
Cylinder to 15 psig
Check cabling
Replace cal gas solenoid
Replace control board
Set regulator to 10 psig
Adjust Flowmeter
Replace solenoid SV9
Replace solenoid SV10
Replace solenoid SV11
Check cables and connector
boards for good connections
Computer Control
(Remote)
Computer control has
no effect
No computer sense
Remote/Local switch in local
Computer control wiring to
terminal block is wrong
Ribbon cable is loose
Defective control board
Computer sense wiring to terminal
block is wrong
Ribbon cable is loose
Select remote
Check cables.
Replace control board
See computer control wiring
section in manual
Check cables
