Tisch Environmental PUF+, Operator'S Manual

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PUF+ Operator’s Manual Tisch Environmental
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Edit Calibration Constants (F3)
Pressing the F3 key (EDIT) allows the A1 (gain) and A0 (offset) calibration constants for the
sensor to be manually entered. This feature is useful in trouble shooting the unit or
recovering from the incorrect calibrations. Past values for A1 and A0 for each sensor can be
found in the calibration log.
Exit Calibration (F4)
Pressing the F4 key (EXIT) will exit the calibration process and prompt the user save the data
the sensor was calibrated. If the user chooses not to save the calibration values, the original
calibration values will be restored.
Automatic Flow Calibration
Because of the tedious and complex nature of the manual flow calibration, the unit
incorporates a pressure sensor (Pcal) specifically for automatic the flow rate calibration using
the standard calibration orifice. The Pcal sensor replaces the standard slack tube manometer
that is typically used for calibration. To start the automatic flow calibration process, answer
yes to the Auto Calibrate question asked at the beginning of the ADD calibration point for
Qsys. The following steps outline the Automatic Flow Calibration process. The process
typically takes a few minutes to complete.
1. The first set is to verify that all other sensors are accurate and working properly. The
Automatic Flow Calibration depends on these sensors for measurements required by
the calculations made during the flow calibration.
2. Attach the standard calibration orifice to the unit inlet.
3. Attach the calibration port of the orifice to the Pcal pressure port on the control unit.
4. Press the F1 (ADD) soft-menu function key from the Qsys main calibration screen.
5. Select “YES” to the “Auto Calibrate” query and press the “ENT” key.
AUTO CALIBRATE:
► YES
NO