Additional note - Main switch Power “O
.
n”
When
the 620A-4 Igniter Tester is first turned on, the
unit briefly draws more internal power then cuts
back to less than 100 mA, after a few seconds.
The initial Power “On” battery drain is to heat up
the unit’s ovenized zener voltage reference. If the
“Low Battery” Indicator only comes on (i.e. 10 to
15 seconds) for a few seconds (i.e. when the
620A-4 is first turned on), then goes out, the
battery levels are starting to indicate the charge
level is starting to get low
.
A-4.
Setup and Use
Once the AMPTEC 620A-4 has had its batteries
charged for 12 to 24 hours it is ready for use. The
620A-4 only draws a little electrical power
(internal battery based) and generates virtually no
heat. Consequently, it may be used in any area
where the environment does not exceed the
specifications of Table B-2.
You may also have a test procedure or technical
order (T.O.) that has you inspect the calibration
sticker on the AMPTEC 620A-4 Igniter Tester to
determine that it is still valid, or within its
calibration interval. Avoid exposing the 620A-4 to
extreme temperatures, hot or cold which will affect
accuracy and shorten battery lifespan.
A-5 Serial Number, Revision and Safety Board
Approvals
The AMPTEC 620A-4 Igniter Tester represents
the latest in ultra-safe Igniter Tester resistance
measurements. The AMPTEC 620A-4 (serial
numbers 620A4-800 and higher) Igniter Testers
use the same main printed circuit board (PCB)
referred to as “Revision D”. This manual is
specific for the “Rev D” versions of the 620A-4.
The AMPTEC 620A-4 Igniter Tester is Mil Std
810 Method 511 Compliant for use in Explosive
Atmospheres Use to +50 degrees C.
This product is also
certified for Use in Explosive Fuel Air Mixtures per
Mil Standard 810 Method 511.
