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CM4 Four-Point Continuous Monitor
Fault
Description
No.
Pump Failure
26
Flow Failure PTx
27
Lock On Time Out
28
Unable to Print
29
Print Overflow
30
Gas Table Error
31
CM4 Technical Manual
Possible Cause
Pump Malfunction
Set Pump Limits procedure not performed
Pump inlet vacuum high, indicating filters
clogged
Pump exhaust pressure high, indicating
blocked exhaust line
Low line voltage
Point flow set incorrectly
Chemcassette
not installed correctly
®
Sample line kinked or obstructed
Internal tubing, filter or valve clogged
kinked or obstructed
Point lock on exceeded idle time for
remaining points
Printer not connected
Printer not online
Printer out of paper
Data overload caused by "letter quality"
selection on the printer
Print mode set to continuous
Print mode set to "letter quality"
Invalid gas table stored in EEPROM
Table B-1: CM4 Fault Listings (cont'd)
Corrective Action
Cycle power
Check pump limits
(Section
8.9)
Change internal filters
(Section
Check operation with exhaust line disconnected to isolate
problem
Reset flow in Set Flow
(Section
Reinstall Chemcassette
carrier
®
Disconnect sample line if unable to flow balance
Change internal filters
(Section
Disable points not desired
(Section
Reprogram idle time out
(Section
Make sure printer is connected
Make sure printer is online
Reload printer
Make certain the printer is set on "draft quality" mode
Change printer format to draft mode
Call Local Service Agent
B-5
Relay
Activated
9.6)
FAULT
(RY10)
8.7)
(Section
9.2.4)
FAULT
(RY10)
9.6)
7.2)
FAULT
(RY10)
7.6.5)
MAINT
(RY8)
MAINT
(RY8)
FAULT
(RY10)
Beeping
Yellow
Audio
Status
Alarm
LEDs
On
Solid
On
Off
Off
Off
On
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