Instruction manual

SM425 INSTRUCTION MANUAL 8.0 DETAILED DATA SETTING
Figure 8-14 Clock Display
8.6.2 Setting Periods for Averaging and Maximum-Minimum Values
The SM425 monitors maximum, minimum, and average oxygen concentrations over intervals
programmable from 1 to 255 hours. The average, maximum, and minimum values are displayed on the
Detailed-Data display screen (see Section 1.53.1). Use the following procedure to program these
intervals.
8.6.2.1 Procedure
1. Press the Setup key in the Basic Panel display screen.
2. Select “Setup” in the Execution/Setup display screen.
3. Select “Others” and then select “Averaging” in the “Others” display screen. The averaging display
screen shown in Figure 8-15 appears.
4. Select “Set period over which average is calculated” and enter the desired numeric value from the
numeric-data entry display screen. Type in 003 to enter three hours. The period over which
average values can be calculated ranges from 1 to 255 hours.
5. Select “Set period over which maximum and minimum is stored” and enter the desired numeric
value from the numeric-data entry display screen. To enter 48 hours, type in 048. The allowable
input ranges from 1 to 255 hours.
8.6.2.2 Default Average, Maximum, and Minimum Period Settings
The default averaging period is 1 hour. The default period for storing maximum and minimum values is 24
hours.
Figure 8-15 Setting Average, Maximum, and Minimum Periods
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