CM4 Four-Point Continuous Monitor
CM4 Technical Manual
7-9
Continuous
Summary
Compressed
Zero Readings
X
Non-Zero
Readings
X
X
Alarm
Readings
X
X
X
Fault Readings
X
X
X
Table 7-1: Report Options
The display shows:
PRINT FORMAT UPDATED
4. The CM4 automatically returns to the Output Options menu.
7.4.4 Relay State (3.3.4)
Purpose
Use the relay state function to:
• Select the state of the relay contacts to either energized or
de-energized and latching or non-latching
• Set the alarms to nonlatching, which clears the alarm
automatically (without pressing RESET) once the concentration
decreases below the alarm level threshold or the fault is
cleared
NOTE:
The default condition is de-energized for all relay contacts
except the watchdog relay, which remains energized as a fail-
safe precaution in the event of power loss.
Instructions
1. Press PROGRAM to exit Monitor Mode.
2. From the 3–SET-UP MENU, choose the subfunction 3–OUTPUT
OPTIONS, then 4–RELAY STATE.
3 – SET-UP MODE
3 – OUTPUT OPTIONS
4 – RELAY STATE
The display reads:
SELECT RELAY STATE
The display then reads:
1=ENRGZD 0=DE-ENRGZD
The cursor is flashing over the current set-up.
3. Press either:
• 1 to energize relay contacts
or
• 0 to de-energize relay contacts.
Pressing 1 displays:
CONFIRM ENERGIZED
followed by the display:
1=ENRGZD 0=DE-ENRGZD
4. Repeat Step 3 to confirm the entry. The relay state confirmation
display reads:
RELAY DE-ENERGIZED
or
RELAY ENERGIZED
CAUTION
Selecting the energized state changes all relay states, except the
watchdog. If power is lost, energized relays change state if they are
selected to be energized. Be sure that this will not initiate a false
alarm condition in your facility.
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