20
US
Operating instructions - digital oval gear meter and pulse meter
8.3.4 Changing the K FACTOR directly
This procedure is helpful for the correction of a mean error that may occur as a result of many output
operations. In the event you observe a mean percentage error during normal meter operation you may
carry out a correction by changing the valid User K Factor by that percentage. In order to calculate the
correction of the USER K FACTOR, proceed as follows:
New calibration factor = old calibration factor x
Example:
Observed mean percentage error E % -0,9 %
Current K Factor 1.000
New USER K FACTOR 1.000 x 100-(-0,9)÷100=
1.000 x (100+0,9)÷100=
1.009
If the meter displays less than the actual amount of liquid output (negative error), the new K Factor must
be greater than the old one (see example). The opposite is true if the value indicated is greater than the
actual amount (positive error).
Operation Display conguration
1 NONE
Meter is in default standby mode, not counting.
2 PRESS RESET SEVERAL SECS
Meter changes to calibration mode displaying the valid K
Factor instead of the partial volume. FACT or USER indicates
whether valid calibration factor is Factory K Factor or User
K Factor.
3 PRESS RESET SEVERAL SECS
Meter shows TOTAL display and the resettable total register
displays zeroes. Meter is now ready for simulated operation
calibration.
4 PRESS RESET SEVERAL SECS
Changing valid K Factor directly: The word DIRECT is dis-
played, together with the calibration factor currently in use.
An arrow at the bottom left of the display (pointing up or
down) indicates the direction in which the displayed value
is changed. Increase or decrease when actions 5 or 6 are
carried out.
5 PRESS RESET SHORTLY
Direction of arrow ips. This may be repeated as often as
necessary in order to set the correct direction.
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