Graco EM5 Instructions-Parts List Manual page 10

NOTE: This unit has been calibrated at the factory to
dispense lubricating oils; it should not require
additional calibration during installation. If this unit will
be used to dispense antifreeze, and accuracy must be
greater than plus or minus 2 percent, it is
recommended that you use a calibration factor of 368
quarts or 389 liters.
CAUTION
You must ground yourself to a true earth ground
while calibrating the meter. You must keep
yourself constantly grounded when you touch
any electronic components inside the cover of
the dispense valve. To order a grounding wrist
strap, order Part No. 112190.
This is the procedure for calibrating the meter.
1. Remove the six screws (21) (see the Parts
Drawing on page 18) that hold the two halves of
the cover together, open the unit, and remove the
fluid section to gain access to the Calibration
button.
2. Press the RESET button.
NOTE: You have four minutes to complete the
calibration procedure.
3. Press the calibration button inside the unit, shown
in Fig. 7. The "CAL" indication should show on the
display (see Fig. 8).
CAUTION
Note location of battery wire to prevent damage
during reassembly
calibration
button
Fig. 7
10 309142
Calibration
4. Reassemble the two halves of cover using
screws (21).
NOTE: Number displayed on unit after assembly may
be 001 or greater.
5. Press the Total button. Output should be 000 as
shown in Fig. 8.
Fig. 8
6. If the unit of measure is liters, dispense exactly
one liter of fluid into a calibrated one liter container.
For proper calibration, you must dispense the
exact amount per the markings on the container.
7. If the unit of measure is gallons, pints, or quarts,
dispense exactly one quart of fluid into a calibrated
one quart container. For proper calibration, you
must dispense the exact amount per the markings
on the container.
NOTE: If an error has been made, pressing the
TOTAL button will zero the display. This will allow you
to perform the calibration dispense again. Pressing the
RESET button with display at zero will return the unit
to its previous calibration factor.
QTS (or LITERS)
CAL
TI0272