Total Flow Pulse Setting; Width); Totalization Processing Setting At Time Of; Error (Burnout) - Fuji Electric FSZ Instruction Manual

3.10.2. Total flow pulse setting (total rate, pulse width)
Description
●
When totaling the flow rate into the integrator, set the output pulse as follows.
●
Total rate: Total rate (volume) per pulse.
When the total volume reaches the amount set by the total flow rate, one total flow pulse is output.
Setting range: FSZ08: 0.1, 1, 10, 100, 1000 [L] (Factory default: 10 [L])
FSZ15: 0.1, 1, 10, 100, 1000 [L] (Factory default 10 [L])
FSZ25: 1, 10, 100, 1000, 10000 [L] (Factory default 100 [L])
*The unit of the total flow rate is the unit selected in the "Flow rate unit".
Note 1: Setting the total flow rate clears the total value to zero.
●
Pulse width: The pulse width of the total pulse output.
Select the pulse width from the menu according to the corresponding integrator. Setting range: 5 ms, 10 ms, 50 ms, 100 ms, 200 ms
●
Setting limits
The maximum output frequency for the total pulse output is limited according to the pulse width settings.
Pulse width Frequency range of pulse output
(At full-scale flow rate)
5 ms 100 pulses per sec
10 ms 50 pulses per sec
50 ms 10 pulses per sec
100 ms 5 pulses per sec
200 ms 2 pulses per sec
Set the pulse width and total rate so that both conditions 1 and 2 below are satisfied.
If the setting does not satisfy conditions 1 and 2, it may not perform the correct operation.
Condition 1:
Full-scale
(Note 1)
Total flow rate [L]
Condition 2:
Full-scale
(Note 1)
Total flow rate [L]
Note 2: The DO1 maximum output frequency limit also applies if the volume flow rate exceeds the setting range. Therefore, if the
volume flow rate exceeds 100% when the maximum frequency is set at 100% of the flow setting range, the total pulse output
may not be able to follow and the accurate total value may not be obtained if over-range continues for an extended amount
of time. Therefore, when the volume flow rate exceeds 100%, revise the range or the total constant and set the maximum
frequency to be below the limit.
Calculation example
Find the range where the total rate can be set for the following range and pulse width.
When the set values of the range and pulse width are as follows:
Flow full scale: 60 [L/min] (= 1 [L/s]), Pulse width: 50 [ms]
According to Condition 1
Total flow rate ≥
According to the above:
0.01 [L] =< Total flow rate ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ A
According to 2:
T
otal flow rate ≧ Full-scale [L/s] ×
The range in which the total constant satisfying both conditions 1 and 2 can be set is as follows from the calculation results A and B.
0.1 [L] ≤ Total flow rate
For specific key operations, refer to the example in
3.10.3. Totalization processing setting at time of error (burnout)
Description
Burnout timer (total value)
●
Set totalization processing for measurement errors that may occur due to such reasons as air-bubble contamination in the fluid. (same
for both total display, total pulse output)
●
Sets the time from the occurrence of an error to the time when the error is handled.
●
Setting range: 10 to 900 sec (Factory default: 10 sec)
The totalization continues until the burnout timer starts. After the burnout timer is activated, the totalization stops.
For specific key operations, refer to the example in
[L/s]
≤ 100 [Hz]
[L/s] 100
≤
2 × Pulse width [ms]
1 [L/s]
Full-scale [L/s]
=
100 [Hz]
100 [Hz]
= 0.01 [L]
2 × Pulse width [ms]
(Refer to
3.9.2
2 × 50 [ms]
= 1 [L/s] ×
1000 1000
= 0.1 [L] ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ B
0.
0.
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)