Graco EM5 238457, Instructions-Parts List Manual

Page: 13 / 24

308487 13
Setup
Calibrating the Meter
NOTE: This unit has been calibrated at the factory to
dispense lubricating oils; it should not require addi-
tional 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 recom-
mended that you use a calibration factor of 7230.
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.
CAUTION
This is the procedure for calibrating the meter and
setting whether the display counts up from zero or
down from the predetermined amount in Auto Alarm
mode.
NOTE: All units count up from zero in Standard mode.
See Calculating the Calibration Factor on page 12
for instructions on assessing the accuracy of the meter
and calculating the proper calibration factor.
1. Remove the six screws (21) (see the Parts Draw-
ing on page 21) that hold the two halves of the
cover together, and open the unit to gain access to
the Calibration button.
2. Locate the calibration button inside the unit, as
shown in Fig. 5.
calibration
button
Fig. 5 06186
3. Press the Calibration button.
The calibration factor is shown on the display, as
shown below.
06044
CAL
Maximum Working Pressure: 70 bar (1000 PSI)
Min. Dispense Volume 0.5 liter (0.13 gal)
Minimum Flow Rate 1.0 l/min. (0.26 gpm)
Maximum Flow Rate 15.0 l/min. (3.26 gpm)
4. Press the Calibration button again.
The first digit blinks, which indicates that you can
change it.
5. Press the 10, 1.0, and 0.1 buttons to advance the
blinking digits until the calibration factor is set to
the desired amount. Pressing any other button will
clear the calibration display without saving.
6. Press the Calibration button again.
The next digit blinks, which indicates that you can
change it.
7. Repeat steps 5 and 6 until all the digits are set.
Steps 8 through 10 are the the UP On / UPOFF
Selection Procedure .
When all the digits are set in step 7, above, either
UP On or UPOFF is shown on the display. In UP On
mode, the unit counts up from zero during an Auto
Alarm dispense cycle. In UPOFF mode, the unit
counts down from the predetermined amount during an
Auto Alarm mode dispense cycle.
8. Press the 10, 1.0, or 0.1 button to toggle between
UP On mode and UPOFF mode.
9. Press the Calibration button again.
The unit returns to Standard mode.
10. Press the Calibration button again.
After about 15 seconds, the unit makes an audible
beep to indicate that the changes have been saved.
NOTE: You can view the calibration factor at any time:
Press the Total button repeatedly to see the Total, the
R-Total, and the calibration factor.