Emerson 20/20 ユーザーズマニュアル
13 – 3
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.8.5153
Analog Inputs
This section of the Calibration screen allows the opera-
tor to defi ne the parameters of an installed auxiliary ana-
log instrument. These instruments are usually not part
of a typical compressor setup but Vission 20/20 provides
a way for the operator to add additional capabilities. The
layout of this screen is typical to the pressure and tem-
perature calibration screens.
tor to defi ne the parameters of an installed auxiliary ana-
log instrument. These instruments are usually not part
of a typical compressor setup but Vission 20/20 provides
a way for the operator to add additional capabilities. The
layout of this screen is typical to the pressure and tem-
perature calibration screens.
Device Calibration:
• These setpoints allow the operator to defi ne what the
• These setpoints allow the operator to defi ne what the
input from the auxiliary instrument means in terms
of units and range. If a temperature measuring in-
strument is connected, then the operator would se-
lect temperature from the Unit drop-down box then
set the maximum and minimum value for the scale.
of units and range. If a temperature measuring in-
strument is connected, then the operator would se-
lect temperature from the Unit drop-down box then
set the maximum and minimum value for the scale.
Offset:
• Once the two-point calibration is completed, it is not
• Once the two-point calibration is completed, it is not
uncommon for there to be a small error. By entering
the value of the error from the calibrated value and
the actual value into the adjustment entry box, that
error will be added/subtracted from the total offset.
The offset is applied to the calibrated value which
should correct the error.
the value of the error from the calibrated value and
the actual value into the adjustment entry box, that
error will be added/subtracted from the total offset.
The offset is applied to the calibrated value which
should correct the error.
Range:
• Here the operator defi nes the signal type and range
• Here the operator defi nes the signal type and range
transmitted by the instrument. The operator can
choose from several predefi ned ranges in the drop-
down box or enter a value.
choose from several predefi ned ranges in the drop-
down box or enter a value.
Section 13 • Instruments Calibration