Boge base control Operating Instructions Manual page 20

base control
Page 14
1.4
In order to obtain a precise value it is imperative that no operational com-
pressed air consumption take place during measurement, viz. production is to
be shut off for at least six hours. If measurement is actuated by means of the
control system, measurement will be deferred by six hours. This allows you to
activate the leakage function already in the afternoon causing the measuring
operation to start in the evening (six hours later) to continue over
Unlike continuous value measurement, single value measurement is also pos-
sible if several compressors are being operated in the basic load mode at the
same time. Starting separate single value measurement of each compressor
enables you, after a six-hour measurement period, to read and to add up all
of the single values of the compressor control
sponds to the anticipated annual number of hours of operating load times as
a result of leakage in your compressed air network.
Continuous leakage measurement is designed to continuously calculate
operating load values for one week at six-hour intervals.
Unlike single leakage measurement, continuous leakage measurement can
also be started during current daily production with measurement starting at
once. The first value obtained after a six-hour period will probably be distorted
since any operational compressed air production will be added to any potential
leakage related operating load. Most probably, however, no operational pro-
duction will be in effect during any subsequent value measurement. The then
obtained value, which is exclusively due to leakage, will be smaller than the
first obtained value. The control system is designed to always display the
smallest value of all measurements, in this case, however, the last obtained
value. This means that any distorted calculation of production operating loads
will be excluded.
In order to determine exact leakage measurement values make sure that,
within a time frame of 12 hours, there will in all probability be no operational
compressed air production.
Start single leakage measurement
Single leakage measurement will not start but six hours after actuation of this
process. Therefore, make sure
– that, after the deferred start of the measurement process no operational
compressed air production will take place over a period of six hours.
– that the compressor is set into the "ready" mode by means of the control
unit and that the green LED of the control is lit.
– when using the "external output release": The external flow release may
neither be shut off manually nor by the switch clock.
In order to start single measurement:
1. Call up „Single Leakage Measurement" in the display (see "Single leakage
measurement" on page 9.).
2. Press Enter key
The number 9999 appears and single value measurement will start in six
hours. After a period of twelve hours, the single measurement value will be
displayed. This value will be saved until a new measurement process is
carried out.
If, after having started measurement, a power failure takes place the number
9980 will be displayed. In such case it is recommended to repeat the meas-
urement process at a later
Parameterization of the control
units.
.
stage.
BOGE base control for screw compressors
night.
Their total value corre-