List all tests to be performed with
this procedure, the corresponding paragraph number of the procedure,
and the corresponding paragraph number of the system/subsystem
specification (PIDS/CIDS) requirements and shall include those
tests conducted on each equipment submitted for acceptance. A
statement shall be included to indicate the applicable equipment
specification.
e.g.,
Test
Name
Specification Requirement MIL-N-0000
2.1 Transmitter Power Para. 3.3.2.1.2
2.2 Sector Sweep Par. 3.3.7
2.3 Manual Time Par. 3.7.3.6.2 and
3.7.4
Test
Name
Specification Requirement MIL-N-0000
3.1 IF Amplifier Sensitivity Para.
3.4.7.1
3.2
This list shall include all the test
equipment required to conduct the tests of this section. It shall
list the name, type number, range or spectrum required to conduct
the test, accuracy required for the test, and alternate equipment
that may be used. Schematics and block diagrams of any special
test instrumentation shall be included at the end of the procedure,
between the procedure and the data sheets.
E.g.,
TEST EQUIPMENT
CHARACTERISTICS REQUIRED
1. Signal Generator Hewlett Packard
608F
Range 140 to 180 MHZ +/- 0.1 Dial Accuracy
Output Voltage 15 MV minimum Output Impedance 50 OHMS nominal
2. Oscilloscope
Tektronics 545 or 547
5 inch screen; dual trace; sweep speed:
0.02 USECS/CM to 12.5 SEC/CM; trigger amplitude: 0.5 to 60 V PP;
vertical sensitivity: 0.02 V PP/CM; horizontal sensitivity: 0.1
to 12.5 V PP/CM
This list shall include all abbreviations
used in this test procedure and their meanings. Common abbreviations
need not be listed.
Note: General requirements shall
be to MIL-T-18303B, and MIL-STD-483A.
This Acceptance Test Procedure (ATP)
describes the procedures for formal testing of the Line Replaceable
Unit (LRU) insert Item Name, if applicable insert abbreviation,
insert Item (LRU, etc) code used on the ???? system.
State the purpose of the system,
and identify the major functions the LRU, subsystem, etc., item
performs and describe the role of the item within the system or
segment of which it is part.
The general format of this model text
will be used to establish the format for the preparation of Design
Approval, Preproduction, Acceptance, and Life Test Procedures
required for the testing of Avionic Equipment. See MIL-T-18303B
for further information.
This Acceptance Test Specification
has been produced during the HWCI Testing Phase, for compliance
with the System Test Plan.
This document has been compiled in
the following order.
Section 1 - identifies, states the purpose and introduces the
document
Section 2 - lists the applicable documents
Section 3 - defines the procedures
for the identified item to be manufactured.
Insert here any other information
to summarise any other items regarding the purpose and contents
of the document.
List by title and Identifier, any other
documents referenced by this document and not identified in any
higher level documents.
e.g., STANDARDS, SPECIFICATIONS, DRAWINGS
and OTHER PUBLICATIONS.
This section shall provide the schedule
and procedures for performing each formal test identified in the
System Test Plan and applicable Product Specification.
Provide the location and schedule for
the following activities.
All characteristics in Section 3 of
the specification shall be capable of being measured and such
measurement will be the basis for the inspections of Section 4
of the specification.
Describe the procedures necessary to
prepare the equipment for formal testing. When applicable, the
following information shall be provided for each procedure.
a. When the procedure is to be followed
(e.g., prior to all acceptance testing, prior to Acceptance Tests
X and Y, etc.)
b. The specific test equipment to be
used. The equipment shall be identified by name and if applicable,
number.
c. Any switch settings and cabling
necessary to connect the equipment.
d. Software Preparation.
Provide details if applicable of any
software to be loaded into the LRU or if any support/test software
is required for formal testing.
a. The storage medium of the CSCI or
Support Software (e.g., magnetic disk/tape, etc.,) and precise
step-by-step instructions for loading the CSCI into the computer.
b. The instructions for program initialisation
and setting of control parameters and initial data which are not
unique to a particular acceptance test (for the CSCI or support/test
software).
The tests of this section are intended
to provide sufficient data to assure that each equipment will
operate satisfactory prior to acceptance. Each test should describe:
(1) Requirement - The requirement of
the specification for the test to be performed shall be delineated.
The applicable tolerances shall be included.
(2) Conditions - The conditions shall
include pictorial diagrams of the equipment set up, and adjustment
or alignment of the test equipment and the equipment under test
to make the measurement. The pictorial diagrams shall clearly
identify each equipment to be utilised and the reference designation
of connectors and interconnecting cabling. If the diagrams are
small, they may be inserted under the description of the conditions.
If they are large, they shall be inserted at the back of the procedure
prior to the data sheets and shall be referenced in the description
of the conditions.
(3) Measurements - A step-by-step procedure
to obtain the data to determine conformance with the specification
requirement.
The following provides an example of
a typical test procedure layout:-
Unless specified otherwise all tests
shall be performed under the following conditions:
(a) Atmospheric Conditions - The tests
shall be performed at prevailing factory or laboratory atmospheric
conditions.
(b) Input Power - The input power shall
be 26.5 +/- 0.5 V DC and 115 +/- 1 V AC, 400 +/- 20 HZ.
Transmitter power.
(a) Requirement - (3.3.2.1.2) The output
power shall be at least 300 Watts.
(b) Conditions
(1) Set up equipment as shown in Figure
1.
(2) The function switch of the C-00/APS
shall be turned to standby and the equipment permitted to warm-up
5 minutes.
(3) Turn function switch of the C-OO/APS
to transmit.
(c) Measurement - The Test Bench Harness,
AN/UPM-OO, Meter select switch shall be adjusted to the "POWER"
position. Read output power on M1 of the Power Meter. Record reading.
Sector sweep test.
List requirement, conditions, and measurements
for each of the tests listed under system tests and units test
similar to the arrangement shown in 3.3.2.1.
Diagrams associated with the special
test equipment or with the conditions of testing shall be contained
in this section.
Data sheets shall be included for recording
data of each test. The data sheet shall also include specification
requirement values with tolerances wherever applicable. The paragraphing
of the data sheets should correspond to the paragraphing of the
test procedures. The use of check marks and "yes-no"
answers for data sheets should be avoided. Provisions for recording
the date the test was performed, signature of tester, signature
of inspector, and serial number of the equipment should be included.
Unit:________
Serial No:________
Date:________
Test Personnel:________
Remarks.
Information on calibration of test
equipment, as well as any general information deemed necessary
for clarification of test conditions and procedures, should be
included.
Back to Home page MANAGING STANDARDS Home page
Please send any beneficial comments or identification of errors using the following form to: kenr@wysywig.airtime.co.uk