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Aircrew Survival Equipmentman 1 & C - Aviation theories and other practices | Next
Differential Pressure Gage (DF-1) |
W A R N I NG
Never apply oil, grease, or any other
material not approved for use in the
presence of gaseous and liquid oxygen
systems.
CORRECTION CARD PREPARATION
AND CALIBRATION
An on-site CAL TEAM must prepare the
c o r r e c t i o n c a r d s a n d c a l i b r a t e t h e 5 9 A 1 20
f o l l o w i n g N A V A I R 1 3 - 1 - 6 . 4 p r o c e d u r e s.
H o w e v e r , b e c a u s e o f t h e o p e r a t i o n a l c o m-
mitments of today’s Navy, you may find yourself
with a test stand that needs calibration and
correction card corrections when CAL TEAM
services are not available. This chapter covers
t h e p r o c e d u r e s o u t l i n e d i n t h e N A V A I R
17-15BC-20 for correction card preparation and
calibration.
NOTE: This RTM does not authorize you to
calibrate the test stand nor does it authorize you
to make correction card corrections. These tasks
CORRECTION CARDS
Before you operate the 59A120 test stand,
individual correction cards for the following
components must be prepared: DF-1, PG-1,
PG-4, FLM-1, FLM-2, FLM-3, and FLM-4.
These correction cards must be prepared prior to
calibration of the 59A120 test stand.
To perform calibration and to prepare correction
cards, you will need the Flowmeter Calibration
Kit and the four graphs that are supplied with the
kit for that particular test stand. Each kit will be
serialized with the same number as the serial
number of the test stand.
To prepare the cards, convert the actual
l i t e r - p e r - m i n u t e ( l p m ) f l o w s t o i n d i c a t ed
millimeter (mm) flows on cards 4, 5, 6, and 7.
Refer to figure 1-2 in the following steps:
1 . U s i n g t h e a p p l i c a b l e g r a p h f o r t he
flowmeter selected, locate the desired lpm at the
bottom of the graph.
2. Trace the selected lpm lineup to where it
intersects the graph line.
3. Trace the line from point of intersection
to the left-hand edge of the graph to determine
mm. Enter this figure in the appropriate column
must be authorized by higher authority.
of the correction card.
Figure 1-2.—Conversion Example.
1-5
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