FarmChem APX DPM10G User manual

Manual
800.247.1854 | www.FarmChem.com
DPM10G
Digital Preset Meter

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2
GENERAL SAFETY REGULATIONS
WORK AREA
• Keep work area clean, free of clutter and well lit. Cluttered and dark work
area can cause accidents
• Do not use your meter where there is a risk of causing a re or an explosion;
e.g. in the presence of ammable liquids, gases, or dust. Power tools create
sparks, which may ignite the dust or fumes
• Keep children and bystanders away while operating this meter. Distractions
can cause you to lose control, so visitors should remain at a safe distance from
the work area
• Be aware of all power lines, electrical circuits, water pipes and other mechan-
ical hazards in your work area, particularly those hazards below the work sur-
face hidden from the operator’s view that may be unintentionally contacted
and may cause personal harm or property damage
• Be alert of your surroundings. Using tools in conned work areas may put you in
danger
PERSONAL SAFETY
• Stay alert, watch what you are doing and use common sense when operating
this meter. Do not use this meter while you are tired or under the inuence of
drugs, alcohol or medication. A moment of inattention while operating this
meter may result in serious injury
• Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep
you hair, clothing and gloves away from moving parts. Loose clothes, jewelry
or long hair can get caught in moving parts. Air vents often cover moving parts
and should be avoided
• Use safety apparel and equipment. Use safety goggles or safety glasses with
side shields which comply with current national standards, or when needed, a
face shield. This applies to all persons in the work area. Also use non-skid safety
shoes, hardhat, gloves, dust collection systems, and hearing protection when
appropriate
• Do not overreach. Keep proper footing and balance at all time
• The meter is for professional use only
• Read all instructions, tags and labels before operating the meter
• Use the meter only for its intended purpose
• Do NOT stop or deect leaks with hands, body, gloves or rags
• Do NOT dispense valves toward any person or any part of the body
• Do NOT place hands or ngers over the end of or into the dispense valve
WARNING: e warnings, cautions, and instructions discussed
in this instruction manual cannot cover all possible conditions or
situations that could occur. It must be understood by the operator
that common sense and caution are factors that cannot be built
into this product, but must be supplied by the operator.

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INTENDED USE
Oil preset meter can be used to dispense motor oil. With the pre-selected function,
the nozzle automatically closes the valve and stops dispensing.
TECHNICAL DETAILS
Item no. DPM10G
Flow range 0.3-9.2 GPM
Operating pressure range 7-1000 PSI
Operating temperature Max. 140°F
Accuracy ±0.5%
Viscosity 8-5000 mPas
5-digital LCD display (3/8”H x
3/16” W)
1.65”
Inlet connection 1/2”
Power source 1 alkaline cell 9V
*Tested with DTE-25 motor oil at ambient temperature. Min.-Max. ow range will
vary with uid viscosity.
FACTORY SETTINGS
• Each meter is preprogrammed and calibrated at the factory. Unless otherwise
specied at the time of order, each meter is programmed in quarts for use with
motor oil as standard. The meter is shipped in the manual mode
• The factory preset cannot be changed; if special requirements are needed,
please contact an authorized service center
TOOL USE
• DO NOT modify or alter the meter
• DO NOT leave the meter unattended while dispensing
• Check the meter daily. Worn or damaged parts should be repaired or re-
placed immediately
• DO NOT exceed the maximum working pressure level of the lowest rates sys-
tem component
• Use only extensions and nozzles that are compatible with this meter
• Use only uids and solvents that are compatible with the equipment. Notice
the warnings for uids and solvents
• Tighten all uid connections before operating the meter
• Comply with all local, state, and federal re, electrical and safety regulations
• Use of the product in a manner other than specied in this manual may result
in bodily injury or impaired operation or damage to the meter

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OPERATION
The Digital Meter requires 1 Alkaline cell 9V batteries to operate (batteries includ-
ed). For battery replacement, refer to section D, Battery Replacement elsewhere in
this manual.
1. Keypad Buttons
10 10.1
Press to enter the quantity to be dispensed.
AUTO
Press to enter and exit the AUTO
Mode.
RESET
Press in Manual or AUTO Mode to
clear the previously programmed
batch and to reset the meter.
OK/STOP
Press to conrm the valve and to
stop the ow through and me-
chanical override.
AUTO
RESET
OK/STOP
2. INSTALLATION
A. Pre-installation Procedure
1) Relieve the system pressure
a) Turn off the power supply to the pump or close the shutoff valve
b) Dispense any uid in the system into a waste container by opening the dis-
pense valve
c) Open all bleed-type master air and uid drain valve in the system
d) Leave the drain valve open until ready to pressurize the system
2) Close the shutoff valve
3) Ground hoses and reels:
Grounding reduces the risk of static sparking; ground all system components
according to local, state and federal codes. Consult the user’s manual on the
pump and other system components to ground the following:
a) Pump: follow manufacturer’s recommendations
b) Air and uid hoses: use only grounded hoses
c) Air compressor: follow manufacturer’s recommendations
d) Fluid supply container: follow the local code
WARNING: Do not use teon tape on
pipe joints: it may cause a loss of ground-
ing across the joint
B. Apply meter to hose
Close the drain valve before starting this procedure.
1. Attach swivel to meter. Apply thread sealant to
the male end of the hose.

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2. Insert the metal end of the hose into the swivel. Tighten complete with an
open ended adjustable wrench.
NOTE: The threaded end of the meter always has female threads. The meter end of the hose must have
threads. Apply thread sealant, anaerobic adhesive or equivalents, to the male end. The inlet and outlet swivel
connections are 1/2” NPT & 1/2” BSP, depending on their meter model.
1. On the opposite end, apply the sealant to the
end of the nozzle
2. Thread the nozzle onto the meter. Screw it in
tightly with an open-ended adjustable wrench
3. Open all dispense position shut-off valves. Start
the pump to pressurize system
4. Before use, to ensure accuracy, purge all air
from the uid lines and dispense valve(s)
3. OPERATING THE METER
WARNING
After using the manual anti-drip valve, it is important to discharge the
pressure between chambers (1) and the manual valve (2) of the spout.
First, the pump must be switched off. Then, unscrew the tip of the valve
(2) During this discharging operation, do not use the trigger (3).

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To access the various customizing functions and to select the desired options, two
different actions are indicated on the keys.
• This symbol indicates that it is necessary to press AUTO briey, and afterwards,
release it
• This symbol indicated that it is necessary to press OK/STOP and hold the key for
a few seconds
To exit from the customization menu, independent of the activity in progress, press
RESET. The settings displayed at that moment immediately become operational.
WARNING
The stored value total is set as a default in the factory and cannot be
changed. If you need to change it, please contact an authorized service
center
A. Display Mode
Start up the meter by selecting RESET.
The meter displays:
Last amount dispensed
Stored value total
Press and hold RESET until the counter
reads zero.
The meter displays:
Reset Batch Total
Stored value total
B. Operation Mode
B-1. Manual Mode
Program the Meter to Manual Mode
by selecting RESET.
The meter displays:
Pull the trigger to begin the ow.
When the desired amount has been
pumped, press OK/STOP to stop the
ow.
Press RESET to reset counter display
Pull the trigger to dispense.
Release the trigger to stop dispensing.
Manual Mode

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B-2. AUTO Mode
Meter stores: AUTO
1-2-3-4-last: Five different PRESET val-
ues which are frequently used.
Start up the meter by selecting RESET
Press AUTO as many times as neces-
sary to reach the desired values and
the values are repeated.
Blinking message will be:
To conrm a PRESET value, press
and hold OK/STOP until the meter
displays:
AUTO message
not blinking
Reset batch total
To start dispensing, pull the trigger com-
pletely, then release.
The trigger thus remains locked in open
position. Now dispensing can continue in
AUTO mode.
Automatic stop
The ow automatically stops wen the pre-
set value is reached.
NOTE: If you want to stop dispensing be-
fore the preset value is reached, just press
OK/STOP to stop.
WARNING
In all cases the operator must
attend to the meter while dis-
pensing in AUTO mode in order
to avoid any oil spillage.

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B-3 User Mode
If the meter is off, press RESET to restart
it.
The value is last amount dispensed, the
meter will display:
To select a new PRESET value (for ex-
ample, 12.3), press the numeric keys as
many times as needed; this value will
be last mode automatically.
The meter displays:
Select value
Press OK/STOP and hold until the count-
er turns to zero.
Reset batch total
Selected value
To start dispensing, pull the trigger
completely, then release. The ow
automatically stops when the preset
value is reached.
NOTE: If you want to stop dispensing
before the preset value is reached, just
press OK/STOP to stop.
B-4 Use The Trigger
Fig A: Pull the trigger completely to
start dispensing and the trigger will
lock. When the desired amount has
been pumped, press OK/STOP to re-
lease the trigger and stop the ow.
Fig B: If there is only one indicator for
the battery left, you need to pull back
the trigger manually to stop the oil
dispensing
C. Preset Values Setting
C-1. Numeric Function
Press and hold OK/STOP to set the
function
Selective key
Numeric keys
Conrm and quit key
Press and hold on OK/STOP to set the
function: it contains value setting (C-2),
unit setting (C-3), decimal digits setting
(C-4), reset setting (C-5), auto reset set-
ting (C-6), and calibrating setting (C-7).

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C-2 Value Setting
The meter allows the operator to store
ve different PRESET values (AUTO 1 ...
AUTO 5), which can be recalled with-
out having to set them each time with
numeric keys.
Press and hold OK/STOP once to set
the function.
The meter will display:
Blinking
Index of the PRESET value AUTO 1
When the value is blinking, press AUTO
to select preset 1-4, then press the
numeric buttons to set the value.
Blinking message will be:
Press RESET to conrm the value and
quit the setting mode. The setting value
will be stored.
By holding on the keys, the value con-
tinues to vary.
C-3 Unit Setting
The meter allows the user to select one
of the following measurement units:
• QTS = QUARTS
• PTS = PINTS
• LIT = LITERS
• GAL = GALLONS (U.S. Gallons)
Press and hold OK/STOP two times to
set the function.
The meter displays:
When the unit is blinking press AUTO to
select unit L, GAL, PT or QT.
Press RESET to conrm the value and
quit the setting mode, the setting value
will be stored.
NOTE: The above mentioned mea-
surement units refer to the Batch total
indicators
• If you select the unit LITERS, the
TOTALS will be displayed in LITERS
• If you select the unit GALLONS,
PINTS or QUARTS, the TOTALS will be
displayed in GALLONS
• The modication of the measure-
ment unit does NOT require a new
calibration
• If the TOTAL indicates a value oth-
er than zero, this value is automat-
ically converted from one unit to
another unit
Attention: In order to preserve the unit
setting, OK/STOP must be held for two
seconds after accomplishing setting
and the program will be saved until
the start of the next function setting. If
it is necessary to preserve the setting in
ash in case of power-off, wait for 30
seconds until the screen disappears.
The setting will be written in ash then.

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C-4. Decimal Digits Setting
Press and hold OK/STOP three times to
set the function.
The meter will display:
Blinking point
When the number point is blinking,
press AUTO to select the location of the
point to conrm the number of deci-
mal digits setting.
Press RESET to conrm the value and
quit the setting mode. The setting value
will be stored.
NOTE:
• The meter displays the FLOATING
POINT Batch total dispensed
• Independent of the selection
carried out (two or three decimal
digits), as soon as the amount
dispensed exceeds 10 units, the
meter displays only two decimal
digits
• As soon as the amount dispensed
exceeds 99 units, the meter dis-
plays only one decimal digit
C-5 Reset Setting
Press and hold OK/STOP four times to
set the function.
The meter displays:
Blinking
When YES is blinking, press AUTO to
select YES or NO. If YES, the batch total
will be set to zero after hold OK/STOP
button for 10 seconds, NO to cancel.
Press RESET to conrm the value and
quit the setting mode. The setting value
will be stored.
NOTE: Independent of the selection
carried out, the Batch total supplied is
never reset if the dispensing operation
has been carried out in AUTO mode
C-6. Auto Reset Setting
The function described in this paragraph concerns only those who want to obtain
the maximum dispensing stop precision in AUTO mode.
If a slight excess of the pre-set value (a few hundredths of a quart) dos not cause
any problem, the following paragraphs can be ignored.
The meter in AUTO mode allows the user to obtain a highly precise stop, thus dis-
pensing exactly the pre-set amount without exceeding the PRESET value.
To guarantee this high stop precision, especially when the unit operates at the
maximum allowed ow rates, dispensing does not stop when the PRESET value is
reached, but instead when the PRESET value reaches a few Unit hundredths.
To guarantee the stop precision, this pre-stop value must not be xed, but is de-
pendent on the ow rate used. To allow the operator to obtain the highest stop
precision, the unit is equipped with a Stop Precision factor, or PS factor.
The operator can customize the meter to select a PS factor between ZERO and
FOUR.

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Why calibrate?
If the meter is used:
• With uids having the viscosity close to the limits of the allowed range (such as
low-viscosity antifreeze uids or high-viscosity oils for gear boxes)
• In extreme ow rate conditions (close to the minimum and maximum value of
the allowed range), it may be necessary to carry out an on-site calibration
How to calibrate
The meter allows the user to carry out a rapid electronic calibration by modifying
the calibration factor (K factor)
At delivery all meters are given the same calibration factor:
K factor = 1.000
This calibration factor guarantees the best accuracy in the following operating
conditions:
Fluid: Motor oil type 10W 30 Temperature: 68°F Flow-rate: 2.8 GPM
The calibration can be done either as:
• An on-site calibration by dispensing into a calibrated container or
• A direct modication of the calibration factor
On-site calibration by dispensing into a
calibrated container:
Press and hold OK/STOP six times to set
the function.
The meter will display:
Blinking point
Press AUTO; start the calibration by
dispensing the uid into a calibrated
container.
During dispensing the meter displays:
Batch Total dispensed
Blinking
The dispensing operation may be inter-
rupted and resumed.
The calibrated dispensing is complete
when the level of the uid reaches
the graduated area of the calibrated
container.
The meter displays:
Indicated value
Carry out the calibration dispensing at
a steady ow rate by pulling the trigger
completely and keeping it in the open
position until the container is nearly full
is nearly full. Do not reduce the ow
rate to reach the graduated area of
the calibrated container. Instead, to
complete the nal stages of the lling
operation into the calibrated contain-
er, top-off in small increments. This is
achieved by rapidly pulling the trigger
of the meter and then releasing it very
quickly.
WARNING In order to get a correct
Calibrated K Factor from the meter,
ensure calibration capacity is set
to more than 5 quarts. Purge all air
from the unit before carrying out the
calibration.
Blinking

Press AUTO again to modify the value
to equal the volume of the calibrated
container.
Press key “10” to increase the indicat-
ed value.
Press key “0.1” to decrease the indicat-
ed value.
After correction:
Press AUTO again, the meter will calcu-
late the K Factor automatically which
is blinking.
The meter stores the new Calibration
Factor (K Factor) and displays:
Blinking New K Factor
After a few seconds, the Meter auto-
matically exits from the customization
mode and starts using the new Calibra-
tion Factor.
One dispensing operation is enough to
carry out the on-site calibration of the
meter.
If you wish to verify the result of this cal-
ibration, complete a normal dispensing
in the same Calibrated Container with-
out re-entering the calibration function
in the Customization menu.
Attention: In order to preserve the unit
setting, OK/STOP must be held for two
seconds after accomplishing setting
and program will be saved until the
start of next function setting. If setting
preservation in ash in case of pow-
er-off is needed, it is essential to wait for
30 seconds without operation until the
screen disappears and the setting will
written in ash then.
WARNING
After dispensing, wait a
few minutes to allow any
air bubbles in the calibrat-
ed container to dissipate.
Verify the actual amount
dispensed in the calibrated
container; as the air bub-
bles dissipate, the indicated
level may decrease. Do not
wait more than 15 minutes
as the meter will exit from
the menu and it will no lon-
ger be possible to complete
the calibration operation.
The meter is ready to accept the
modication of the indicated value
to correspond to the real value. A key
each time is pressed, the last digit on
the right is modied under one unit.

D. Battery replacement
9V DC battery is applied for power supply when voltage is below 6.5V, screen of
owmeter will ash and the meter cannot be used any longer, which means battery
must be replaced immediately. Battery replacement must be processed under dor-
mancy mode after screen disappears for the sake of reliable setting preservation.
Top replace batteries:
Pressing “right arrow” and slide to the right
1. To replace the battery, please open the battery cover according to the photo
shows
2. Pull out the battery electrode
3. Remove the used batteries
4. Install a new alkaline cell 9V battery
5. Put the battery electrode back into place with battery attached and replace
the cover
The meter will start automatically as soon as the battery pack is xed, carrying out a
short SELF-TEST:
• Complete lighting of LCD
• Complete stop of LCD
• Display of serial number of electronic board
• Normal operation mode
The replacement of the batteries does not cause any data loss. The customization
of the meter, previously set, remains operational.
1. If the meter does not operate for more than 30 seconds, it will return to sleep
mode
2. Please pause for more than 30 seconds between reusing AUTO mode

EXPLODED AND PARTS LIST

Code Name Quantity
1Right cover 1
2* Meter cover 1
3* Front label 1
4Main circuit board 1
6 Cross recessed pan tap-
ping screw
4
7Rod 1
8* Seat 1
9Washer 1
10 Spring 1
12 Swivel 1
14 Trigger 1
18 Mandril 1
19 Screw 2
20 Screw 1
21 Cross recessed pan tap-
ping screw
4
22 Battery cover compo-
nents
1
23 Battery cover 1
25 Cam 1
26* O-ring 2
*Wearing parts
For replacement parts and technical questions, please call 800-247-1854.
Troubleshooting
Problem Possible causes Solutions
Display is blinking 1. Meter Inactive
2. Batteries low or dead
3. Program error
4. Loose battery connection
1. Press RESET button
2. Replace batteries/Press
RESET button
3. Remove and reinsert
battery pack/Press RESET
button
4. Remove battery pack and
check battery connection/
Press RESET button
Meter does not latch for
batching
1. Meter not in AUTO mode
2. Meter not reset after prior batching
3. Low batteries
1. Press AUTO button and
program batch size
2. Press RESET button
3. Check for battery icon/
Replace batteries/Press
RESET button
Code Name Quantity
27 Cross recessed pan tap-
ping screw
2
28 Washer at 2
29 Left cover 1
30 Flexible spout 1
31* Filter 1
33 Screw 3
34 Meter holder 1
35 Body 1
36 Shaft 2
37 Magnetic rod 2
38* O-ring 1
39 Suction tube 1
40 Shaft 2
41 Rubber protector 1
42 Screw 4
44 Screw 1
45 Spring 1
46 Battery 1
If the meter has anything wrong, please contact an authorized service center. We
don’t recommend customers repair the meter themselves.