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TE-WILBUR OPERATIONS MANUAL REV 002.15 06/11/2015
Tisch Environmental 1-TSP-AND-PM10 sales@tisch-env.com www.tisch-env.com Page 68 of 183
7.7 Flow Calibration Audit / Verification
The flow system can be verified for audit purposes by these keystrokes:
MAIN MENU
CALIBRATION
FLOW CALIBRATION
CHECK
To verify the flow calibration
1. Each flow setpoint has a corresponding START button below it. Press
each start button to have the flow system reach that flow setpoint.
2. Let the flow stabilize at that setpoint and compare the reading with a
calibrated flow device such as a Tisch FRM-CAL low volume
calibrator.
3. Press the STOP button or press the Calibration Main Menu return
button to stop the flow verification.
Flow Calibration Check Screen
NOTE: Calibration should be checked and verified at a minimum every 4
weeks. If the flow system is off by more than ± 4%, a full
calibration should be performed.
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