TB 9-6670-248-50
SECTION I
GENERAL
1. Purpose and Scope. This bulletin provides information for the
periodic calibration of
Beam Indicating Scale, AAA-S-118b. It is to be used by personnel trained and qualified in
the use of calibration equipment.
2. Description Data
a. Identification
Nomenclature
BEAM INDICATING SCALE.
Reference
Fed Spec AAA-S-118b and Manufacturer's instruction
manual.
b. Specifications
Capacity:
Type I
0 to 500 lb; 0 to 1000 lb; 0 to 1500 lb; 0 to 2000 lb and 0 to
2500 lb.
Type II
0 to 10,000 lb.
Type III
0 to 300 lb; 0 to 600 lb and 0 to 1200 lb.
Accuracy
1/4 lb or one scale beam division, whichever is larger.
c. Calibration
Time required
1 hour (approx.)
Technique
Physical
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General Instructions
a. DA Form 2416 (Calibration Data Card). During the use of this bulletin,
annotate DA Form 2416 in accordance with TM 38-750.
b. Unit Under Test. Beam Indicating Scale, AAA-S-118b, will be referred to as the
UUT (unit under test) throughout this bulletin.
c. Equipment Identification. The equipment referred to throughout this bulletin is
d. Equipment Setup. Disconnect instructions are not contained in this bulletin.
4. Differences Among Models. Models of weighing beam scales, type I, II and III will
vary in platform size, shape, capacity, subdivisions of weight beams, and weight of
counterpoise weights. This calibration procedure is applicable to all models of weighing
beam scales.
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