Table of Contents
Advertisement
With this parameter, you can fine tune your calibration to meet your
applications needs. If you find that the meter is off by a certain percentage,
you can modify the detector factor to achieve the desired accuracy.
Even though all meters are calibrated at the factory, sometimes your
specific installation and fluid parameters make it necessary to
recalibrate a meter under actual operating conditions with the liquid
being metered.
The following instructions are provided to assist in performing an on-
site calibration check and adjustment. This procedure may require
either a test tank or vessel of known capacity or a second flow meter
installed in the same line.
ACCURACY TEST
1.
Place a test tank of calibrated volume at the output of the meter.
2.
Operate meter until test tank is filled to the appropriate calibrated
level. Since meter accuracy can vary somewhat with flow rate,
we recommend making test run at the same flow rate used in
actual operation.
3.
Record quantity indicated on display totalizer.
4.
Repeat run three times and calculate an average for the (4) tests.
5.
Perform the following calculation to determine the percent of
accuracy of the meter.
Qty. Delivered in vessel
Average Meter Reading
Example 1.
100 Gallons
x 68.85 = 72.47
95 Gallons
In this example, the meter accuracy is low and must be increased
by a calibration correction.
Example 2.
100 Gallons
x 68.85 = 66.20
104 Gallons
In this example, the meter accuracy is high by 4% and must be
reduced by a calibration correction.
When finished with detector factor parameter, hit ENTER and then
hit
key to go to the next parameter.
METER/PIPE SIZE
Place the arrow next to "change" and press the
following screen will show:
This parameter will come preprogrammed from the factory match-
ing the line size of the detector. However, if you replace the entire
amplifier in the field, you may need to reprogram this parameter.
Select the pipe diameter of your flow meter by using the
keys to match your meter size.
Old Detector
New Detector
x
=
Factor
Factor
key. The
When complete, press Enter.
Hit
key to go to the next parameter.
PASSWORD PROTECTION
This is the password protection parameter. The unit will be set at "0"
(no password required) from the factory. If activated, whenever you
want to go into any of the submenus, the unit will ask for the pass-
word number.
To activate the password, line up the > with "change" and hit
Change "0" to any desired number from 1 to 999. Hit enter and after
returning to the main screen, you will always have to enter the new
password to get into the submenus. If the password is lost or forgot-
ten, a factory "333" password value can also be used to satisfy the
password entry. If later no password is desired, change the value
back to "0", hit Enter and a password will no longer be required to
enter any of the submenus.
Hit ENTER twice and you will be back at the main screen.
LANGUAGE SELECTION
The software permits the selection of English or Spanish languages.
To change the language, switch off power to Primo Amplifier. While
holding the ENTER key down, re-power the unit. Hit ENTER to get
to the following screen:
Select desired language and hit ENTER several times until main
menu screen appears.
and
16
key.
Advertisement
Table of Contents
