Connecting The Static Pressure Port To The Micromanometer; Attaching The Micromanometer To The Capture Hood Base - Alnor Airflow Proood PH731 Owner's Manual

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The pitot velocity needs a valid temperature to perform the standard or actual velocity correction. This

is accomplished in the "Actual/Std Setup" menu. If no probe capable of measuring temperature (plug

in probe) is connected, the "Temp Source" must be set to "Entered". The duct air temperature must

then be manually inputted by the user using the "Entered Temp" setting. If the "Temp Source" is set

to Probe, and no probe is connected, dashes (------) will appear on the display.

For more information on entering the temperature manually, refer to the

section of this manual.

Do not use the instrument or probes near hazardous voltage sources since

serious injury could result.

Connecting the Static Pressure Port to the Micromanometer

The static pressure port on the static pressure probe will be connected to the (+) port on the

micromanometer. The (-) port on the micromanometer will be open to atmosphere (see Figure 9). The

Static Pressure probe is used to measure the duct static pressure and features a magnet which holds the

probe to the ductwork.

1. Tilt the meter forward and align the tabs in the base of the meter with the two matching slots in the

bottom of the recessed area at the front of the base (see Figure 10).

2. When the tabs are engaged in the slots, press firmly on the face of the meter above the display until

the tab in the top center of the meter "clicks" into the bent metal retaining clip in the base.

3. Attach the temperature cable and the back pressure flap switch cable to the right side of the meter.

4. To remove the meter from the base, first disconnect the temperature cable and the back pressure

flap switch cable, then press upward on the metal retaining clip to release the meter from the base.

Chapter 2: Unpacking and Setting Up

Note

C A U T I O N

Magnet

Figure 9: Static Pressure Probe

Actual/Standard Setup

Static Pressure Port

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