CHAPTER E - GENERAL OPERATION AND DESIGN
E-1. General
All diagrams and
information disclosed in this chapter is
proprietary
E-2. Troubleshooting
The AMPTEC RESEARCH 601ES Explosive
Safety DMM Igniter Tester is shown in block
diagram form in Figure E-1.
and is included in order to make
troubleshooting to component level possible.
The AMPTEC 601ES Explosive Safety DMM
Series uses modern solid-state semiconductors
exclusively and digital CMOS circuits exten-
sively to minimize power requirements and
make battery operation useful and practical.
AMPTEC RESEARCH also maintains a spare
parts inventory of all components found in the
601ES Explosive Safety DMM tester and it’s
customer service department can also provide
additional assistance in the trouble shooting
process.
Since the AMPTEC 601ES Explosive Safety
DMM Igniter Tester is used to test potential
deadly explosive force detonators and warheads
of missiles etc.,
.
Apparent AMPTEC 601ES
alfunctions can sometimes be the result
of bad test lead/connection wiring, wrong
connections, misinterpretation of specifications,
low battery levels and in rare cases due to an
incomplete understanding of the instrument and
how to use it. A thorough review of the operat-
ing instructions for this instrument is recom-
mended prior to any component replacement.
Check to be sure that cables and other test
equipment are in good working order before
attempting to troubleshoot the
601ES
series.
the AMPTEC 601ES Explosive
Safety DMM
,
it may indicate the batteries need changing.
personnel that are not qualified
to make such electrical repairs on the 601ES
Explosive Safety DMM should not even
attempt to remove the calibration access screws
or open the main panel or effect any repair
whatsoever
If you turn on
display does not come on
Explosive Safety
DMM m
AMPTEC
Explosive Safety DMM
and the
If the AMPTEC 601ES Explosive
Safety DMM exhibits problems
that cannot be eliminated by
reviewing Chapters B and D, the following
guidelines have been established to help solve
the problem.
The key to successful troubleshooting is to
localize the problem to a general electronic
parameter as much as possible before trying to
pin the problem down to a specific component.
Certain questions should be asked such as "Does
the problem occur on all ranges or on a specific
range only?" If the AMPTEC 601ES Explosive
Safety DMM does not come "on" when powered
up, did you check the obvious items such as
dead batteries? Is there 5 mA of test current
coming out of the units 20 ohm range? The
power supplies for both the current source and
the digital voltmeter electronics are also one of
the first things that should be tested.
Explosive Safety
DMM
as corrosion of
components leads and PCB etch loss can occur.
E-3. Localizing the Problem
As it is not possible to anticipate all possible
failure modes of the AMPTEC 601ES Explosive
Safety DMM series igniter tester, service
personnel should become familiar with this
section to gain a complete understanding of the
internal workings of this safety meter.
If the malfunction is a faulty component, the
accuracy of the AMPTEC 601
igniter tester
and the
following precautions are taken:
Use only the specified component or its exact
equivalent. Spare parts can be ordered from
AMPTEC RESEARCH by referring to the
AMPTEC Stock Number listed in the Parts Lists
section at the back of this manual.
The highest quality 63/37 grade rosin core
electronic grade solder with a 50W or lower
maximum power soldering iron should be used.
E-4. Component Replacement
can be maintained only if
the
601ES is re-calibrated following
component replacement
AMPTEC
a
(repair)
Never use an acid core solder
16
