GF Signet 8150 Battery-Powered Flow Totalizer - Manual (Page 9)

9 8150 Flow Totalizer
9. AutoCAL Calibration
The AutoCAL feature allows theTotalizer to be adjusted to match the fl ow rate to any external reference.
• Flow in the pipe should be as stable as possible for best results.
• If the fl ow rate display is erratic, set the SPEED (section 14) to 120 seconds during the AutoCAL procedure.
• The timebase on the reference meter must be the same as the 8150 Totalizer.
Example: The Totalizer fl ow rate shows 60 GPM, while an external reference indicates a true fl ow rate of 70 GPM.
Change the fl ow rate from 60 GPM to 70 GPM using AutoCAL.
1. Hold the ENTER key for 2 seconds, then enter the SECURITY CODE.
AutoCAL
is the fi rst item in the menu.
2. Press the ► key to select the AutoCAL function.
The display will show AutoCAL and the current fl ow rate will be fl ashing.
3. Press the ► key again to change the fl ow rate. The display shows "Set Flo" and the fi rst digit of the fl ow rate will begin fl ashing.
4. Press the ► key to advance the fl ashing element to the "6".
5. Press the ▲ key one time to change the "6" to "7".
6. Press the ENTER key to complete the automatic calibration process.
The display shows a new K-Factor with the fi rst digit fl ashing. This K-Factor is based on the change in fl ow rate.
7. Press the ENTER key again to accept the new value.
NOTE: If the display shows "ERR SetFlo" the procedure was unsuccessful because the calculated K-Factor is less than 0.001 or
greater than 999999. Verify the fl ow rate and start the AutoCAL procedure from step 1.
8. Press ▲ and ▼ keys together to store the new value in the memory.
The display will show "storing" for a few seconds, then return to normal operation.
8
7
2
3 5 6 4
1
2 s
Enter security code