CM4 Four-Point Continuous Monitor
CM4 Technical Manual
10-4
A schematic of the circuit using the CM4 monitor’s internal 24 VDC power supply is shown in Figure 10-2.
T.B.
15
PT. 1
T.B.
16
PT. 2
T.B.
17
PT. 3
T.B.
18
PT. 4
Figure 10-2: Using the CM4 Monitor Internal Power Supply
1
RY1
LEVEL 1
RY2
LEVEL 2
RY4
2
RY3
3
RY5
4
RY7
GENERAL ALARMS
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
PT.1
PT.2
PT.3
PT.4
TB
18
TB
17
TB
16
TB
15
TB20
• 2A 125 VAC MAX.
CONT
ACT RA
TING
• FUSES BELOW FLAPS
TB19
LEVEL 1 POINT ALARMS
WARNING
EXTERNALLY APPLIED
VO
LTAGES MAY BE PRESENT AT ALARM TERMINAL BLOCK
WITH
INSTRUMENT DISCONNECTED. DISCONNECT AT SOURCE PRIOR
TO
SERVICING.
REFER
TO
USER MANUAL
1
RY9
2
RY11
3
RY13
4
RY14
CAUTION
REPLACE FUSES WITH SAME
TYPE AND RATING SPECIFIED
LEVEL 2 POINT ALARMS
REMOTE INPUTS
NO C NC
NO C NC
NO C NC
NO C NC
NO C NC
NO C NC
NO C NC
NO C NC
PT.
1
2
3
4
CURRENT LOOP
MAINTENANCE
RY8
FAULT
RY10
WATCH DOG
RY12
RY6
N.O.
SW.
INSTRUMENT STATUS
!
!
!
Ground Lug
Figure 10-3: CM4 I/O Panel
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