Airflow Instruments PAN300 Series, Operation And Service Manual

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11
Chapter 3
Performing a Duct Leakage Test
The PAN300 duct leakage test system includes a Model PVM620
Micromanometer and a Model TA465-P Ventilation Meter. During duct
leakage testing, the Model PVM620 Micromanometer measures the
duct static pressure while the Model TA465-P Ventilation Meter
measures the airflow rate.
Refer to the Operation and Service Manuals for the Model PVM620
Micromanometer and the Model TA465-P Ventilation Meter to use
these instruments in other applications. If you do not have the
manuals, download them from TSI
®
Incorporated
’s website
www.tsi.com .
Measuring Duct Static Pressure
1. Turn ON the Model PVM620.
2. Zero the Model PVM620 pressure sensor with both ports open to
the atmosphere.
3. Connect the (+) port on the Model PVM620 to P3 (+) to measure
the duct static pressure (see Figure 6).
4. Leave the (-) port on the Model PVM620 open to the atmosphere.
N O T E
Refer to the Model PVM620 Operation and Service Manual for
instructions on using data logging to automatically record the duct
static pressure.