Details of unit operation LM OG-A approved Page 15/28
LM_OG_BA_98_1105
Example:
Quantity dispensed: 4,2 litres, Quantity displayed: 4,0 litres, Correction factor k:
4,2/4,0 = 1,05
Pressing the TOTAL and the RESET button simultaneously in this sequence will
cause the programmed correction factor to be displayed, as long as both buttons are
depressed.
As soon as volume signals come in, all keyboard commands will be ignored!
As soon as pulses are totalized, the keypad is out of function!
9.6 LM OG-A: Monitoring of false pulses
During measurement, the microprocessor controls the phase position of both reed
switches (30° to 150° phase shift).
Errors caused by incorrect phase sequence:
If more than two (2) phase errors are noted after a RESET, the LCD display is
flashing slowly (1 second interval). This type of error is resettable by depressing the
RESET button.
If it is nor possible to stop the flashing, there is another fault and the register has to
be exchanged.
The flashing can e. g. also be caused by a short-time reverse flow when starting up
the oil dispense system, or by an insufficiently areated oil pipe (pressure shocks).
This can be prevented by installing an appropriate non-return valve.
Errors in stored variables
: (i.e. correction factor, unit of measure, direction of rotation)
These errors are indicated by a series of dashes across the display and are not
resettable. The register has to be removed from service.
Installation procedure LM OG
The meter series LM OG is equipped with a (1/2", 3/4", 1”) BSP female thread on the
inlet side. In order to obtain a leakage free connection from the meter to the hose, the
hose end must have an appropriate BSP male thread.
We recommend to proceed as follows before screwing in:
1. Clean both threads from fat.
2. Brush the male thread at the hose with liquid sealant (e.g. Eurolock 310100 or
equivalent selaing of other manufacturers). Please be careful that no sealing gets
into the meter.
3. Screw both parts together.
Do not overtighten the screw connection, otherwise the swivel of the meter could
be damaged.
4. The instruction of the sealing manufacturer should be absolutely followed.
5. The meter mounting should only be carried out by authorized specialist staff.
The right selection of the components as well as the mounting in accordance with the
regulations is in the responsibility of the user.
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