CM4 Four-Point Continuous Monitor
CM4 Technical Manual
B-3
Fault
No.
Description
Possible Cause
Corrective Action
Relay
Activated
Beeping
Audio
Alarm
Yellow
Status
LEDs
10
EE CSUM Error
EEPROM Error
Reset System (
)
Call Local Service Agent
Note:
If this fault appears vital, factory calibration information has
been lost. Recalibration must be performed by a Local
Service Agent.
FAULT
(RY10)
On
Solid
11
Out of Monitor
Idle Time Expired
Return to Monitor Mode or Disable Timer (
FAULT
(RY10)
On
Solid
12
HI BACKGND 4 PTS
High background on all points
Broken Tape in Carrier
Dirty Optics
Find source of gas near optics block
FAULT
(RY10)
On
Solid
13
Clock Error
Data Corrupted
Clock Failure
Set Date and Time (
)
Call Local Service Agent
FAULT
(RY10)
On
Solid
14
N/A
15
N/A
16
Optics Fail PTx
Communication problem between circuit
boards
Check Controller cables
Call Local Service Agent
FAULT
(RY10)
On
Solid
17
Voltage Fail PTx
Ribbon cable unplugged
Power Supply problem
External short-circuit on 24 VDC
Check cable from CM4 to customer I/O module
Call Local Service Agent
Correct short and replace fuse (F15) on customer I/O
board
FAULT
(RY10)
On
Solid
Table B-1: CM4 Fault Listings (cont’d)
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