Equipment Setup

zero - adjustment on TI.

b. Items of equipment used in this procedure are

b. Set POWER switch to OFF.

referenced within the test by common name and item

c. Turn BLEED VALVE fully counterclockwise.

identification number as listed in tables 2 and 3. For the

identification of equipment referenced by item numbers

Connect power cable connector to 115-volt,

prefixed with A, see table 2, and for prefix B, see table

60 Hz receptacle.

e. Set POWER switch to ON. Motor should

7. Equipment Setup (fig. 2). a. Adjust mechanical

operate.

Allow TI to operate for at least 10 minutes.

Figure 2. Location of TI controls and instruments used during calibration.

the PRESSURE gage scale.

PRESSURE Gage. a. Performance Check.

CAUTION

(1) Connect the test equipment as shown in figure

Since a sudden change in pressure could

(2) Close BLEED VALVE.

damage the TI, do not disconnect the

(3) Slowly adjust AIR FLOW valve on TI until the

equipment before returning the TI to

PRESSURE gage pointed indicates "1" on the scale.

atmospheric pressure.

The manometer (A2) must indicate as shown in table 4.

(5) After the performance check is completed,

(4) Repeat (3) above for each major division on

slowly open the BLEED VALVE to return the TI and