CM4 Four-Point Continuous Monitor
CM4 Technical Manual
7-13
4. Use the numeric keys to enter the desired date and time.
5. Press ENTER to record the changes.
7.6.3 Set Display Cycle (3.5.3)
Purpose
Use the set display cycle function to set the amount of time the
concentration level for each point is displayed while monitoring. Default
is four seconds.
Instructions
1. Press PROGRAM to exit Monitor Mode.
2. From the 3–SET-UP MENU, choose the subfunction 5–DATE
& TIME, then 3–SET DISPLAY CYCLE.
3 – SET-UP MODE
5 – DATE & TIME
3 – SET DISPLAY CYCLE
The displays reads:
DISPLAY CYCLE 04 SEC
3. Use the numeric keypad to enter the desired display time,
between 2 and 10 seconds.
4. Press ENTER to save the display time and return to the set
date & time function.
The display shows:
DISPLAY CYCLE IS SET
DATE AND TIME
7.6.4 Set TWA Printout Time (3.5.4)
Purpose
Use the set TWA time function to set the time for printing the time
weighted average, with a printout occurring every eight hours after
the set time. The exact time of TWA printout may be as much as 45
minutes later than the value entered here. This is because the TWA
printout occurs only after a tape advance.
The valid range for TWA printout times is 00:00 to 07:59. If a TWA
printout time is entered which is outside of this range then 8 or 16
hours will be subtracted from it to make the TWA printout time in the
range 00:00 to 07:59.
Instructions
1. Press PROGRAM to exit Monitor Mode.
2. From the 3–SET-UP MENU, choose the subfunction 5–DATE
& TIME, then 4–SET TWA TIME.
3 – SET-UP MODE
5 – DATE & TIME
4 – SET TWA TIME
The display reads:
PRINT TWA 00:00
The cursor flashes over the first zero.
3. Use the numeric keys to enter the desired time interval for
printing the TWA. For example, to print at 11:59 a.m., press
1, 1, 5, 9.
4. Press ENTER. The display reads:
TWA TIME UPDATED
The CM4 returns automatically to the date and time function.
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