Display Lock-On During Monitor Mode - Honeywell CM4 Technical Handbook

CM4 Four-Point Continuous Monitor

4.2.4 Display Lock-On During Monitor Mode

Normally the CM4 displays the gas concentration on all enabled points.
However, the CM4 can also be configured to display only one point
while continuing to monitor all points.
Press 1, 2, 3, or 4 during Monitor Mode to select the specific point.
The CM4 displays only the concentration for the selected point.
The display will not return to normal unless you press 0 or exit and
reenter Monitor Mode.
4.2.5 Alarm History During Monitor
Use the alarm history function to print and display up to a maximum
of 16 gas alarms with the most recent alarm shown first.
Print Alarm History
If the CM4 is equipped with a printer, see Figure 4-1 for an example
of a typical printout. The printout of the alarm history shows the most
recent alarm first for up to 16 total alarms.
To print and display the alarm history, press ENTER followed by the
point desired (1, 2, 3 or 4).
The alarm history is printed (if installed) and displayed showing the
most recent alarm first. The display will scroll through each alarm. Use
the cursor keys to advance through each alarm.
The CM4 sends the alarm history of the selected point to the printer.
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 level (1 or 2)
CM4 Technical Manual
02/29/00 14:23 CM4-851-0006 ALM HISTORY
ABC MANUFACTURING CO., KANSAS CITY, MO
PT1- CM4-851-0006
02/29/00 14:18 Level 2 Alarm
02/29/00 14:18 Level 1 Alarm
PT2-CM4-851-0006
02/29/00 14:16 Level 1 Alarm
PT3-CM4-851-0006
02/29/00 14:19 Level 1 Alarm
PT4-CM4-851-0006
NO ALARM HISTORY
END OF ALARM HISTORY
Figure 4-1: Typical Alarm History Printout
The display returns to normal ten seconds after the last keypad
entry.
Pressing RESET does not clear alarm history.
4-4
ALL POINTS
50.1 PPM NH -II
3
37.0 PPM NH -II
3
29.8 PPM NH -II
3
28.7 PPM NH -II
3