CM4 Four-Point Continuous Monitor
CM4 Technical Manual
6-2
6.1 Introduction
The Review Menu contains eight functions which permit viewing
data. It is not possible to change the CM4 configuration with these
functions.
2 REVIEW MENU
2.1
ALARM HISTORY
2.2
FAULT HISTORY
2.3
CURRENT TWA
2.4
LAST POWER DOWN
2.5
CUSTOMER DATA
2.6
PRINT CONFIGURATION
2.7
INST. SER. NUMBER
2.8
PRINT MENU
Figure 6-1: Review Mode Menu
The following is an overview of each of the eight options. The following
sections describe each of these options in detail:
• 2.1 ALARM HISTORY displays and prints up to 16 gas alarms
with the most recent alarm shown first (see Section 6.2)
• 2.2 FAULT HISTORY displays and prints up to eight faults with
the most recent shown first (see
)
• 2.3 CURRENT TWA displays and prints the current Time
Weighted Average (TWA) for each point that has been
monitored since the start of the current 8-hour TWA (see
)
• 2.4 LAST POWER DOWN displays the most recent power-
down and power-up date and time (see
• 2.5 CUSTOMER DATA displays customer name and location
• 2.6 PRINT CONFIGURATION prints the programmed
configuration for the system (see
)
• 2.7 INST. SER. NUMBER displays CM4 serial number (see
• 2.8 PRINT MENU prints the CM4 menu options (see
6.2 Function 2.1 – Alarm History
Use the alarm history function to print or display up to a maximum of
16 gas alarms with the most recent alarm shown first.
6.2.1 Print Alarm History
If the CM4 is equipped with a printer, see
of a typical alarm history printout.
Purpose
The printout of the alarm history shows the most recent alarm first for
up to 16 total alarms. The printout shows:
• Instrument serial number
• Current date and time
• Customer name and location
• Point number
• Alarm date and time
• Concentration in ppb or ppm
• Alarm levels
Instructions
1. Press PROGRAM to exit Monitor Mode.
2. At the REVIEW MENU display, press 1 or RIGHT ARROW and
ENTER to select alarm history.
The display reads:
1 – ALARM HISTORY
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