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* Continued from the previous page
Clear (reset) the totalizer. (Note1)
Press
switch to clear the count.
If you have changed the count rate, clear (reset) the count before you start the
totalizer.
Start the totalizer. (Note1)
•
Press
to start the totalizer.
Check that “C” is shown on the display indicating that counting is in progress.
Note 1: The LF232 converter has the function to start/stop the totalizing operation or clear the
internal totalizer.
For details of how to operate the totalizer, see 7.3.4 “Totalizer Operation.”
Note 2: Example of count rate setting range
Count rate can be set in the range of minimum value (3,600,000 pulses/h) to maximum
value (3.6 pulses/h) with respect to the set range
Example:
When the range is 3,600m
3
/h (1m
3
/s), settable count rate is as
follows:
Minimum value: 3,600m
3
/h
÷
3,600,000 pulses/h = 0.001m
3
= 1 l (liter)
Maximum value: 3,600m
3
/h
÷
3.6 pulses/h = 1,000m
3
Note 3: Example of pulse width setting range (in the case of manual setting)
Pulse width can be set within the range of 0.3ms to 500ms in increments of 0.1ms.
However, the pulse width must be 40% or less of the full-scale period.
Example 1:
In the case of the following:
Range: 3600m
3
/h (1m
3
/s)
Count rate: 0.001m
3
Since the count rate is 3,600 m
3
/h
÷
0.001(m
3
) = 3,600,000 pulses/h (1000
pulse/s), the full scale period is 1s
÷
1000 = 1ms.
Therefore, pulse width can only be set to 1ms x 0.4 = 0.4ms.
Example 2:
In the case of the following
Range: 3,600m
3
/h (1m
3
/s)
Count rate: 1000m
3
Since the count rate is 3,600m
3
/h
÷
1000m
3
= 3.6 pulses/h (0.001 pulse/s),
the full scale period is 1s
÷
0.001 = 1000s.
Therefore, pulse width becomes 1000s
×
0.4 = 400s.
However, since the maximum value is 500ms, pulse width becomes 500ms.
Example 3:
In the case of the following
Range: 3,600m
3
/h (1m
3
/s)
Count rate: 1m
3
Pulse width is set to 0ms
Since the count rate is 3,600m
3
/h
÷
1m
3
= 3600 pulses/h (1 pulse/s), the
full scale period is 1s
÷
1 = 1s.
Therefore, pulse width becomes 1s
×
0.4 = 400ms.
However, since the maximum value is 100ms, pulse width becomes 100ms.
