4-15
How to Change Orifice Plate
Use one of the following procedures when changing an orifice plate.
Taking Run Out-of-Service Procedure (Simplex Fitting)
Step Procedure
1. Take meter run out of service.
2. Replace the orifice plate.
3. If you would like to record a Volume Calculation, go to the Entry screen,
select the measurement tube, and move to the Commands tab. Change
the value for the Reset Log Period to Yes. This forces a new record to be
written based on the old orifice plate size. If you would also like to
simultaneously zero the accumulated volume, you may use the Reset
Volume command instead.
While seemingly unnecessary, if the Volume Calculation Period is set to
anything less than 60 minutes, Totalflow recommends performing either
the Reset Log Period or the Reset Volume command to enhance the audit
trail created by the event.
4. In PCCU, enter the new orifice plate diameter.
5. Return meter to service.
Leaving Run In-Service Procedure (Senior Fitting)
Step Procedure
1.
Place
µ
FLO in HOLD, by entering the calibration mode, so constant SP,
DP and Temperature values are used, while the orifice plate is being
changed.
2. Replace the orifice plate.
3. Exit the Calibration mode, releasing the Hold of the SP, DP and
Temperature.
4. If you would like to record a Volume Calculation, go to the Entry screen,
select the measurement tube, and move to the Commands tab. Change
the value for the Reset Log Period to Yes. This forces a new record to be
written based on the old orifice plate size. If you would also like to
simultaneously zero the accumulated volume, you may use the Reset
Volume command instead.
While seemingly unnecessary, if the Volume Calculation Period is set to
anything less than 60 minutes, Totalflow recommends performing either
the Reset Log Period or the Reset Volume command to enhance the audit
trail created by the event.
5. In PCCU, enter the new orifice plate diameter.
At top of next Volume Calculation Period, the
µ
FLO will do calculations based on
new orifice plate diameter for the part of the period after the log was reset.
Summary of Contents for uFLO
Page 1: ...2100890 001 AB TOTALFLOW µFLO Computer User s Manual ...
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Page 16: ...1 2 FLO 6213 Figure 1 1 µFLO 6213 Dimensions ...
Page 18: ...1 4 Figure 1 3 Bottom View µFLO 6213 9 367 9 992 8 647 Figure 1 4 Bottom View µFLO 6210 ...
Page 39: ...2 9 FLO 6213 Figure 2 7 µFLO 6213 Wall Mounted ...
Page 50: ...2 20 Figure 2 13 Mounting AC Charger ...
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Page 70: ...4 6 11 9 5 4 1 13 3 FLO 6210 12 8 7 10 2 Figure 4 2 µFLO 6210 Component Cable Locations ...
Page 71: ...4 7 1 6 FLO 6213 5 13 3 2 4 7 8 10 9 12 11 Figure 4 3 µFLO 6213 Component Cable Locations ...
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