4
Note
Always fix the plug with seal (17) to avoid leakage because
the O Ring on the calibration screw (16) does not have
any sealing function (The O Ring in this case only avoids
accidental loosening of calibration screw).
OPERATION
After installation, turn the reset knob (2) until the batch total is
completely reset. The totalizer cannot be reset in any way.
USE BY GRAVITY
This meter can also be used without pump pressure in a system
where flow is generated due to difference in height between fuel
level and dispensing point.
INSTRUCTION
Longer pipes or nozzles reduce the flow by causing higher pres-
sure losses.
Use By Gravity is not recommended where the height of fuel is
lower than 4 feet as the flow rate will be reduced, resulting in
inaccurate measurement.
On field calibration is always advisable in case of Gravity
installations.
The meter is pre-calibrated in factory under standard conditions.
A new calibration is necessary whenever
• The meter is disassembled for maintenance
• The media used is different from Diesel oil.
CALIBRATION
Calibration procedure
1. Remove the plug and seal (17).
2. Vent the air from pump, pipelines and meter by dispensing
until the flow stream is full and steady.
3. Stop the flow by shutting off the nozzle, but let the pump run.
4. Reset the Batch Total using reset knob (2).
5. Dispense at the desired flow rate into a graduated container
whose capacity should not be lower than 20 litres (5 gallons).
6. The Meter Value should be matched with the Container Value
as given below.
• If the Meter Value is higher than Container Value,
loosen the Calibration screw (16).
• If the Meter Value is lower than the Container Value,
tighten the Calibration screw (16).
7. Repeat steps (4 - 6) until accuracy is satisfactory.
8. Tighten the plug with seal (17) again.
Instruction
Do not reduce the flow in order to reach a preset value
of the calibration container. The right method is to start
and stop the full flow repeatedly until the required level is
obtained.
5. Rotate the register base (8) in the desired position. Tighten
the base with screws (7) and refit the Meter Unit (6) in the
new position. Make sure that the Total gears are moving
smoothly.
RECOMMENDED USE
Diesel, Biodiesel, Low to medium viscosity oils
DO NOT USE WITH
Water based media, Gasoline etc.
WETTED COMPONENTS
Aluminium, Butyl Terephthalate, Nitrile Rubber
Generally this flow meter does not require any special
maintenance other than the cleaning of measuring chamber
(It may get clogged sometimes due to insufficient filtration).
Note
• The meter can be easily disassembled into its main
parts without removing the body from the pipes.
• Never remove meter label from the meter.
• Cleaning is done with a soft brush or small tool
(i.e. a screwdriver).
• During cleaning, be careful not to damage the
measuring chamber or nutating disk.
• A new calibration is always necessary after
disassembling the measuring chamber.
MAINTENANCE
Before disassembling always make sure that the line pressure
is released and all fluid is drained from the meter.
Reset
Knob
Meter
Label
6. Refit the meter cover
(3) and fix the meter
label (1). Fix reset
knob by pushing it
firmly on to the reset
shaft.
7. The display can be chosen from one among the following
positions.
