9-8 Stepping and Scanning
External Stepping/Scanning
The settings for external stepping/scanning are explained as follows:
Min/Max Values — These two values specify the beginning and ending channels for the
step/scan list. Valid values for Min is 1 to 799, and valid values for Max is 2 to 800. However,
the Max value must be larger than the Min value.
Timer — The maximum timer interval is 99H:99M:99.999S (Hour:Minute:Second format).
Reading Count — This indicates the total number of measurements that will be performed
for each step/scan cycle. For example, if Min is set to 1 and Max is set to 10, the Reading Count
will automatically set to 10. For each additional step/scan cycle, simply add 10 to the Reading
Count. Therefore, to perform three step/scan cycles, set the Reading Count to 30. Reading Count
can be set from 2 to 1024.
Perform the following steps to configure external stepping or scanning:
1. Press SHIFT and then CONFIG. Use the key to display the present SCANNING type
(INTernal or EXTernal).
2. Press the or key to display EXT, and press ENTER.
3. The minimum channel (MIN CHAN) to step/scan is displayed. Use the edit keys (, ,
, and ) to specify the Min channel, and press ENTER.
4. The maximum channel (MAX CHAN) is then displayed. Use the edit keys to specify the
Max channel, and press ENTER.
5. The present state of the timer is displayed (OFF or ON). Press or to display the
desired timer state, and press ENTER.
6. If you turned the timer on, the timer interval will be displayed. Use the edit keys (, ,
, and ) to set the timer interval, and press ENTER.
7. The Present Reading Count (RNG CNT) is displayed. It will be (Max - Min) + 1. If you
wish to increase the Reading Count, use the edit keys to display the value, and press
ENTER to return to the normal display state.
Stepping/Scanning examples
Internal scanning
Settings: Control Source = Immediate (timer off)
Delay = Auto
Channel 1 Count = 4
Reading Count = 10
Overview: With Channel 1 count set to 4, each scan cycle will measure Channel 2
once and Channel 1 four times, for a total of five measurements. This
sets the Sample Counter in Figure 9-1 to 5. The Reading Count 10
indicates that the five measurement scan will be performed twice. This
sets the Trigger Counter to 2. A total of 10 measurements will be
performed. All ten readings will be stored in the buffer.
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