CM4 Four-Point Continuous Monitor
CM4 Technical Manual
2-3
2.2.2 LEDs and Point ID Labels
Each of the four detection points includes two LEDs:
• Point status LED
• Point alarm LED
Point Status LED
The monitoring status LEDs indicate the following conditions:
• Green for the specific point when the CM4 is monitoring that
point
• Yellow, steady or flashing indicating fault
• Red, steady or flashing indicating alarm
• Off when the CM4 is not monitoring that point
Alarm LED
To indicate gas alarm condition, the LEDs:
• Light steady red when Level 1 alarm (low level gas alarm)
occurs for any monitored point
• Flash red when Level 2 alarm (high level gas alarm) occurs
for any monitored point
Point ID Labels
Identify each point using the write-on surface provided. Use a fiber-
tipped permanent marker. You can remove any marks with acetone
without damaging the panel.
2.2.3 Keypad
The keypad consists of:
• Numeric keys
• Function keys
• Cursor Arrow Left/Right keys
Numeric Keys
Use the numeric keys, 1 through 9 and 0, to:
• Enter programming values
• Display and select specific detection points
Function Keys
Function keys access menus and functions. Function keys include:
• MONITOR
• PROGRAM
• RESET
• ENTER
Functions are described in detail later in this manual, Sections 4
through 8.
Cursor Arrow Right/Left Keys
Cursor Arrow Left/Right keys scroll the display backwards and forwards
to program and view information. Pressing the cursor arrow keys twice
while monitoring also advances the tape.
2.2.4 Power Indicator LED
The power indicator LED is:
• On steady green during operation
• Flashes yellow to indicate the keypad is locked
See
Section 7.1.1
to activate the keypad using the passcode. See
for passcode information.
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