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SAVE THESE INSTRUCTIONS
Operations Guide for
EDM Electronic Water Meters
Install your meter in-line either horizontally or
vertically or at the end of the hose adjacent to
the nozzle. Installation to metal connections is
not recommended. Install as follows:
1. Plan to install turbine with a minimum
straight pipe length as follows:
– Upstream from the turbine, allow a mini-
mum straight pipe length of 10 times
the internal diameter of the turbine.
TABLE OF CONTENTS
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ENGLISH
–Downstream from the turbine, allow a
minimum straight pipe length of 5 times
the internal diameter of the turbine.
2.
For Soc Fittings use only primer and solvents approved for PVC gluing.
For NPT Fittings wrap all connections with
3 to 4 wraps of PTFE tape. Make sure the
tape does not intrude into the flow path.
3. Attach meter with arrow pointed in the
direction of flow.
For NPT Fittings - Hand tighten the meter at
4.
the housing ends. Do no use a wrench or
similar tool to tighten. This can damage the
housing.
INSTALLATION
IMPORTANT NOTICE
Use EDM Series meters with water and other
chemicals compatible with wetted components
(see Specifications Section). Do not use to
meter fuel or chemicals. EDM Series meters
measure in gallons or litres. Refer to the Calibration Section for details.
These meters are not legal for trade applications.
EDM Series meters are very sensitive to electric
noise if operated within one to two inches of
some electric motors or other sources of electronic noise.
09/06
Verify Meter Accuracy
Before using, check the meter’s accuracy and
verify calibration.
1. Make sure there is no air in the system by
starting the flow until it runs steadily. Then,
stop the flow using a valve or nozzle.
2. If desired, hold down DISPLAY for 3 seconds to zero the meter’s Batch Total. When
zeros appear, release the button.
3. Meter an exact known volume into an accurate container. For best results, meter
with one continuous full stream.
Manual Number 92175901
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4. Check the readout. If the amount metered
is accurate, field calibration is not necessary. If not, refer to the Calibration Section
for further instructions.
OPERATION
Batch and Cumulative Totals
The meter maintains two totals. The Cumulative Total provides continuous measurement
and cannot be manually reset. The Batch Total
can be reset to measure flow during a single
use. The Cumulative Total is labeled with TOTAL 1 LOCKED indicating that this total is
locked and cannot be manually zeroed. Batch
Total is labeled with TOTAL 2.
When the Cumulative Total reaches a maximum reading of 999,999, it will automatically
reset to zero.
Press the DISPLAY button briefly to switch
between the batch, cumulative total, and
flowrate.
NOTE: Totalization counts total units without
differentiating between gallons, litres or
field calibrated units.
Flowrate Feature
When this feature is activated, the word FLOWRATE displays to the left on the bottom line.
When FLOWRATE is displayed, the numbers
on the middle line reflect the rate of flow, for
example, the current gallons per minute (GPM)
or litres per minute (LPM).
Display FLOWRATE
To use this feature, press and release DISPLAY
until FLOWRATE appears to the left of the
bottom line.
Activate the Meter
Turn the meter ON by starting water flow or
briefly pressing the DISPLAY button. The meter
will display the Batch or Cumulative Total from
last use.
Press DISPLAY briefly to display the Batch
Total. Hold the DISPLAY button down for 3
seconds to reset the Batch Total to zero.
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The meter is programmed to turn off automatically if not used for 4 minutes.
Factory and Field Calibration Curves
All calibration information is visible to the user
as words in the upper part of the display, above
the numeric digits.
All units are configured with a “factory” calibration curve. Both gallons and litres are available
(“GAL” or “LTR” will be displayed). Use the
CALIBRATE and DISPLAY buttons to switch
between gallons and litres. This curve is NOT
user adjustable: the word “PRESET” is displayed to show this. (The factory calibration is
stored permanently in the computer’s memory.)
The “field” calibration curve 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
visible when the field calibration setting is selected (“CAL B” will be visible on the top line).
Selecting a Different
Calibration Setting
You can switch between GAL and LTR modes
at will without “corrupting” totalizer contents.
For example, the computer can totalize 10.00
gallons. If the user switches to LTR mode, the
display will immediately change to “37.85 the
same amount in units of litres). GAL / LTR
switching also works in FLOWRATE mode.
To select a different calibration setting, first
press and hold the CALIBRATE button. Continue to hold it while also pressing and releasing
the DISPLAY button. (You may then also release the CALIBRATE button.) The flag indicators in the top line of the display will change to
show the newly selected calibration setting.
Calibration settings change in this order: GAL,
LTR, CAL B, GAL, etc. While fluid is flowing,
only the GAL and LTR selections may be made.
However, when NO fluid flow is occurring, any
setting may be selected.
Field Calibration
Factory calibration settings are custom-programmed into each flowmeter during production, using water at 70°F (21°C). Readings using the standard factory calibration curves may
not be accurate in some situations – for example, under extreme temperature conditions.
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You can field calibrate the meter if you are using
fluids other than water.
For improved accuracy under such conditions,
the Kobold flow computer allows for “field”
calibration, that is, user entry of custom calibration parameters. A “single point” calibration
may yield acceptable accuracy in the middle of
the flow range, but 5 or more calibration points
may yield a higher level of accuracy, especially
at the lower end of the flow range. Up to 15
custom calibration points can be entered.
The use of a uniformly dependable, accurate
calibration container is highly recommended
for the most accurate results. Due to high
flowrate, it is strongly recommended that Field
Calibration be completed with a combination of
volume and weight using fine resolution scales.
Before Beginning Field Calibration
For the most accurate results, dispense at a
flowrate which best simulates your actual operating conditions. Avoid “dribbling” more fluid or
repeatedly starting and stopping the flow –
these actions will result in less accurate calibrations.
Make sure you meet the meter’s minimum
flowrate requirements:
EDM Series Meters
1/2 inch meter 1 GPM (3.8 LPM)
3/4 inch meter 2 GPM (7.5 LPM)
1 inch meter 5 GPM (18.8 LPM)
1-1/2 inch meter 10 GPM (37.85 LPM)
2 inch meter 20 GPM (75 LPM)
For best results, the meter should be installed
and purged of air before field calibration.
Dispense/Display Field
Calibration Procedures
1. Hold down CALIBRATE while pressing and
releasing DISPLAY until the field calibration curve appears (“CAL B” message will
be displayed). Release both buttons.
2. To calibrate, press and hold the CALIBRATE button. While continuing to hold
CALIBRATE, also press and hold the DISPLAY button. Hold both buttons for about
3 seconds until you see a blinking “dd CAL”
message. Once the “dd CAL” message
appears, release both buttons. You are
now in field calibration mode.
3. Once the buttons have been released from
Step 2, the display will show the blinking
message “run 01”. If you want to exit the
calibration now before dispensing any fluid,
go to Step 11.
4. If you want to continue with the calibration,
but have not dispensed any fluid yet, make
your final preparations to your pumping
system, but don’t start pumping yet.
5. Start your pumping system so that fluid
flows through the meter. The display will
stop blinking and show the “run 01” message. Dispense into a container that allows
you to judge the amount of fluid pumped.
When you have pumped the desired amount
(for example, 10 gallons), stop the fluid flow
quickly.
6. Once the flow has stopped, briefly press
and release both buttons. At this point the
computer display will change to “0000.00”
with the left-hand digit blinking.
7. Enter the volume (amount) of fluid that you
dispensed (for example, if your 10-gallon
container is full, enter “10.0” for gallons or
“37.85” for litres). To enter numbers, use
the CALIBRATE button to change the value
of the digit that is blinking and use the
DISPLAY button to shift the “blink” to the
next digit.
8. Once the correct number is entered, briefly
press and release both buttons. The display will now change to a blinking “run 02”
message. You have installed the new calcurve point. You are ready to end calibration (Step 10) or enter another new calibration point (Step 9).
9. To enter another calibration point, go back
and repeat Steps 3 through 8. It is possible
to set up to 15 cal-curve points, and the
“run ##” message will increment each time
you repeat the calibration process (run 01,
run 02, run 03, etc., up to run 15).
10. To end calibration, press and hold both
buttons for about 3 seconds until you see
the “CAL End” message. After you release
the buttons the computer will resume normal operations with the new cal point(s)
active.
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11. If you HAVE NOT dispensed any fluid, you
can exit calibration without changing the
cal curve. If the message “run 01” is showing and you have not dispensed any fluid,
hold both buttons for about 3 seconds until
you see a “CAL End” message. After you
release the buttons, the computer will resume normal operation and the old curve (if
you entered one in the past) is still intact.
MAINTENANCE
Proper handling and care will extend the life
and service of the meter.
Turbine Rotor
The meter is virtually maintenance-free. However, it is important the rotor moves freely.
Keep the meter clean and free of contaminants.
If the rotor does not turn freely, apply a penetrating lubricant on the rotor, shaft, and bearings. Remove any debris or deposits from the
rotor using a soft brush or small probe. Be careful not to damage the turbine rotor or supports.
! ! ! CAUTION ! ! !
Blowing compressed air through the turbine assembly could damage the rotor.
5. Reseat batteries, if necessary, and position the faceplate on the turbine housing.
To avoid moisture damage, make sure the
O-ring is fully seated. Tighten the four
screws on the faceplate.
SPECIFICATIONS
Inlet and Outlet:
EDM-8501S 1/2" Schedule 40, Soc
EDM-8502S 3/4" Schedule 40, Soc
EDM-8503S 1" Schedule 40, Soc
EDM-8504S 1-1/2" Schedule 40, Soc
EDM-8505S 2" Schedule 40, Soc
EDM-8501N 1/2" NPT
EDM-8502N 3/4" NPT
EDM-8503N 1" NPT
EDM-8504N 1-1/2" NPT
EDM-8505N 2" NPT
Design Type: Turbine
Wetted Components:
Housing: PVC
Journal Bearings: Ceramic
Shaft: Tungsten Carbide
Rotor and Supports: PVDF
Retaining Washer: Stainless Steel
Fitting Types: Slip - Schedule 40 Soc or NPT
Max. Working Pressure: 150 PSIG @ 73°F
Battery Replacement
The meter is powered by two 3-volt lithium
batteries which may be replaced while the
meter is installed. When batteries are removed
or lose power, the batch and cumulative totals
reset to zero but the field and factory calibrations are retained.
If the meter display becomes dim or blank,
replace the batteries as follows:
1. Remove the four Phillips-head screws from
the face of the meter and lift the faceplate
from the turbine.
2. Remove the old batteries and clean any
corrosion from the terminals.
3. Install new batteries. Make sure the positive post is in the correct position.
4. When the batteries are replaced, the faceplate will power ON. Check the display to
ensure normal functions have resumed
before assembling again.
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U.S. Measurement
Unit of Measure: Gallon
Flow Range:
1/2 inch 1 - 10 GPM
3/4 inch 2 - 20 GPM
1 inch 5 - 50 GPM
1-1/2 inch 10 - 100 GPM
2 inch 20 - 200 GPM
Accuracy: ± 3.0% (Accuracy can be
improved with field calibration)
Operating Temperature:
Storage Temperature: –40° to +158° F
Product Weight:
1/2 inch .31 lbs.
3/4 inch .38 lbs.
1 inch .51 lbs.
1-1/2 inch .81 lbs.
2 inch 1.14 lbs.
* +32° to +140° F
* Do not allow fluid to freeze inside meter.
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Dimensions - inches (W x H x L):
1/2 inch 2 x 2.5 x 4.3
3/4 inch 2 x 2.7 x 5.3
1 inch 2 x 3 x 6
1-1/2 inch 2.3 x 3.6 x 7
2 inch 2.8 x 4.1 x 7.5
Computer Kits:
12550902 1/2 inch, Computer Assy Kit
12551102 3/4 inch, Computer Assy Kit
12551302 1 inch, Computer Assy Kit
12551502 1-1/2 inch, Computer Assy Kit
12551702 2 inch, Computer Assy Kit
Metric Measurement
Unit of Measure: Litre
Flow Range:
1/2 inch 3.8 - 38 LPM
3/4 inch 7.6 - 76 LPM
1 inch 19 - 190 LPM
1-1/2 inch 38 - 380 LPM
2 inch 76 - 760 LPM
Accuracy: ± 3.0% (Accuracy can be
improved with field calibration)
Operating Temperature:* 0° to +60° C
Storage Temperature: –40° to +70° C
Product Weight:
1/2 inch .141 kg
3/4 inch .173 kg
1 inch .232 kg
1-1/2 inch .368 kg
2 inch .518 kg
Dimensions - cm (W x H x L):
1/2 inch 5.1 x 6.4 x 10.9
3/4 inch 5.1 x 6.9 x 13.5
1 inch 5.1 x 7.6 x 15.2
1-1/2 inch 5.8 x 9.1 x 17.8
2 inch 7.1 x 10.4 x 19.1
* Do not allow fluid to freeze inside meter.
SERVICE
For warranty consideration, contact your local
distributor. If you need further assistance, contact the Kobold Customer Service Department:
412-788-2830
You will need to:
• Provide information from the decal on your
meter.
• Receive a Return Authorization number.
• Flush any fluid from the meter before shipping to the factory.
• If possible leave customer installed fittings
or ample length of bare pipe for reinstallation.
! ! ! CAUTION ! ! !
Do not return the meter without specific
authority from the Kobold Customer Service
Department. Due to strict regulations governing transportation, handling, and disposal
of hazardous or flammable liquids, Kobold
will not accept meters for rework unless
they are completely free of liquid residue.
PARTS
The following replacement parts and accessories are available for the EDM Series meters:
Part No. Description
113520-1 Battery Replacement Kit
901002-52 O-Ring
125508-01 1/2 inch, Soc Turbine Assy Kit
125508-02 1/2 inch NPT, PVC Turbine Assy Kit
125510-01 3/4 inch, Soc Turbine Assy Kit
125510-02 3/4 inch NPT, PVC Turbine Assy Kit
125512-01 1 inch, Soc Turbine Assy Kit
125512-02 1 inch NPT, PVC Turbine Assy Kit
125514-01 1-1/2 inch, Soc Turbine Assy Kit
125514-02 1-1/2 inch NPT, PVC Turbine Assy Kit
125516-01 2 inch, Soc Turbine Assy Kit
125516-02 2 inch NPT, PVC Turbine Assy Kit
WEEE DIRECTIVE
The Waste Electrical and Electronic
Equipment (WEEE) directive
(2002/96/EC) was approved by
the European Parliament and the
Council of the European Union in
2003. This symbol indicates that
this product contains electrical and
electronic equipment that may
include batteries, printed circuit
boards, liquid crystal displays or other components that
may be subject to local disposal regulations at your
location. Please understand those regulations and dispose
of this product in a responsible manner.
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Manual Number 92175901
09/06
Kobold Instruments, Inc.
1801 Parkway View Drive
Pittsburgh, PA 15205
Phone: 412/ 788-2830
Fax: 412/788-4890
www.koboldusa.com
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