SECTION II EQUIPMENT REQUIREMENTS

SECTION II

EQUIPMENT REQUIREMENTS

table 2 provide a four-to-one accuracy ratio between the

4. Equipment Required.

Table 2 identifies the

standard and TI. When the four-to-one ratio cannot be

specific equipment used in this calibration.

The

met, the actual accuracy of the equipment selected is

equipment is issued with secondary transfer standards

shown in parenthesis.

calibration set, NSN 6695-00-621-7877. Alternate items

5. Accessories Required. Some of the accessories

may be used by the calibrating activity when the

listed in table 3 are issued as indicated in paragraph 4

equipment listed in table 2 is not available. The items

above, except for the one which is fabricated as shown

selected must be verified to perform satisfactorily prior

in figure 1. All are to be used in this calibration

to use and must bear evidence of current calibration.

procedure. When necessary, the items other than the

The equipment must meet or exceed the minimum use

one fabricated may be substituted by equivalent items.

specifications listed in table 2. The accuracies listed in

Figure 1. Fabrication instructions for connector (B1).

Table 2. Minimum Specifications of Equipment Required

Minimum Use

Manufacturer, Model,

Item

Common Name

Specifications

and Part Number

FLOWMETER *

Range: 3.5 cu ft/min

Shutte and Koerting, Model 18200

Accuracy: ±0.5% of reading (± 2% of full scale) Series (7920950)

Tube - H-CFB

Float - 4-BP-1

MANOMETER

Range: 0 to 4 in. of water

Wallace and Tiernan, Model 65D-

Accuracy: ± 0.5%

4C-0120X or FA145600

(7912573)

*Procedure limitations: Accuracy ± 2% of full scale.