QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 61
DESCRIPTION:
This screen is used to view and set the
pressure calibration values.
This screen should be used anytime a vibration sensor is
found to be out of calibration. The recommended practice
for adjusting the calibration reading is to
fi
rst determine
which sensor(s) need to be calibrated. Once this is deter-
mined, you must know the actual reading that should be
showing. This can be accomplished by comparing the Cur-
rent Value shown, with the actual value using a separate
vibration measurement device (or temperature probe,
depending on the type of sensor). Determine the differ-
ence between what the Current Value for the sensor is,
and what the reading of the separate device shows. As an
example, assume that the Motor Bearing Temp. on this
screen reads 135 F, but a separate device shows a reading
of 142 F. Select either the Current Value box and enter 142
there, or enter the difference between the Current Value
and the actual reading (7) into the Offset box. The new
reading will now be 135, and should match your separate
reading.
VIBRATION CALIBRATION
Sensors
- The following sensor values are dis-
played along with the unit of measure at the left
side of the screen:
•
Compressor Vib. - Suction
•
Compressor Vib. - Discharge
•
Motor Bearing Vib. - DE
•
Motor Bearing Vib. - ODE
•
Motor Bearing Temp. - DE
•
Motor Bearing Temp. - ODE
•
Motor Stator #1
•
Motor Stator #2
•
Motor Stator # 3
[Current Value]
- This box will initially show the
actual value being read by a sensor. It is also a
setpoint box that allows the user to set the cur-
rent value that is being read by the sensor to a
different value, in the case that the calibration is
inaccurate, this new value will be added to the
actual value to update the offset (see below).
[Offset]
- A value entered here will allow the
user to compensate for calibration issues with
a sensor. This value is then added to the Cur-
rent Value, to create a new Current Value (see
above).
Low
- This will show the low end range that the
sensor is capable of reading.
High
- This will show the high end range that the
sensor is capable of reading.
Sensor Output
- This will show the current type
of sensor that is being used.
I/O Board
- This will show the current I/O board
that the sensor is assigned to.
I/O Channel
- This will show the current I/O
channel that the sensor is assigned to.
CALIBRATION
PHD Monitor
ACCESSING:
PHD Monitor
