Flomec TM Serie Mode D'emploi page 5

Switching between different units will not corrupt
the Total's contents. For example, in GL mode,
the computer totalizes 10.00 gallons, if the user
switches to LT mode, the display will read 37.85
litres (the same volume, different unit).
The "field" calibration may be set by the user, and
can be changed or modified at any time using
the calibration procedure described below in the
Calibration Section. Totals or flowrate derived
from the field calibration are invoked when the
FAC icon is no longer visible on the top line of
the display.
CALIBRATION
Verify Accuracy Before
Beginning Field Calibration
For the most accurate results, dispense at a
flowrate which best simulates your actual oper-
ating conditions. Avoid "dribbling" more fluid or
repeatedly starting and stopping the flow. This
can result in less accurate calibrations.
Make sure you meet the meter's minimum flowrate
requirements:
TM Series Meters
3 inch meter
4 inch meter
The use of a uniformly dependable, accurate
calibration container is recommended for the
most accurate results. Due to high flowrate, it
is strongly recommended that calibration be
completed with a combination of volume and
weight using fine resolution scales.
For best results, the meter should be installed
and purged of air before field calibration.
Field Calibration with
Computer Display
Field Calibration and Factory Calibration are de-
fined in the Operation Section. Factory calibration
settings are programmed into each computer
during manufacturing, using water at 70° F (21°
C). Readings using the Factory Calibration (FAC)
may not be accurate in some situations, for ex-
ample, under extreme temperature conditions,
non-standard plumbing configurations or with
fluids other than water.
30 GPM (113.6 LPM)
40 GPM (151.4 LPM)
Field Calibration Procedures
(Correction Factor Method)
1. To calibrate, press and hold the CALIBRATE
and DISPLAY buttons for about 3 seconds
until you see FLdCAL. Release both buttons
and you will see CF - 00.0. You are now in
the field calibration mode and values from
-99.9% to +99.9% can be entered.
+
2. The
/– position appears either as an "under-
score" character for plus, or as a "hyphen"
character for minus. The DISPLAY button
selects the position and the CALIBRATE
button toggles this character.
3. The DISPLAY button can then be pushed to
select the numeric positions. Press the CALI-
BRATE button to scroll from 0 to 9. Enter the
percentage of change you want the display
to correct. When satisfied with the value,
press both CALIBRATE and DISPLAY buttons
simultaneously. CALEnd will be displayed
and unit will go back to normal operation,
less the FAC (factory calibration) icon.
4. All enabled units-of-measure remain visible
and selectable – the entered correction will
be applied to all enabled units.
5. To return to factory calibration (FAC), press
and hold both CALIBRATE and DISPLAY
buttons for about 3 seconds until FAcCAL is
displayed. Then release buttons. Unit should
return to normal operation and FAC icon is
visible.
Calibration with Conditioned
Signal Output Module
The K-factor of your meter appears on the
calibration report as the number of pulses per
gallon. The factor is determined during produc-
tion using water at 70° F (21° C). This K-factor
may be used for "single point" calibration and
provide acceptable accuracy. However, readings
may not be accurate when using this calibration
method in some situations. For example, extreme
temperature conditions, non-standard plumbing
configurations or with fluids other than water.
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