A-3. Opening the 601ES Explosive Safety
Digital Multimeter / Igniter Tester and
Removal of the Lid
A-4. DC Battery Power Requirements
AA
rechargeable
When closed, the 601ES DMM has two large
O-rings that provide a water resistant seal
. This makes it easier to flip up the
release latch. Repeat the palm press step on the
other corner of the safety meter. At this point the
601ES DMM lid will normally be able to be
raised, and placed in an open lid state.
The 601ES Explosive Safety DMM should open
after flipping up the release latches, even after a
change in atmospheric pressure since the unit is
fitted with an automatic purge valve. You might
need to press down of the corners of the closed
case with your palm then flip open the latch.
The AMPTEC 601ES Explosive Safety DMM can
be powered internally by a variety of heavy-duty
AA batteries. We recommend either an alkaline
battery pack (4 ea.
cell - 1500 mAHr ea.,
preferably Duracell MN1500 or better i.e. Duracell
Ultra). A
set of 4 ea “AA” heavy
duty Nickel Metal Hydride batteries such as the
. By
pressing down with your palm as shown in
Fig. A-3, you compress the O-ring in the lid of
the 601ES
1.2V
also work quite
well. Our tests show the Energizer 2500 mAHr
lasted as long as the Duracell Ultra’s Alkaline.
Since Nickel Metal Hydrides are re-chargeable,
they offer a battery life cycle a hundred times
greater than any alkaline. Be sure to charge the
Nickel Metal Hydride batteries when taken out
of their original packaging for the full charge
cycle prior to installing them in the AMPTEC
601ES Safety DMM.
The battery compartment is completely isolated
from the unit's internal electronics. The user
may replace the 4 ea "AA" batteries as needed
without effecting any internal 601ES DMM
circuitry or the unit's calibration. The AMPTEC
601ES DMM battery life is diminished the
longer the backlight (heavy power drain) is used
and the longer the unit is left
unattended.
“Low Battery level” is indicated by a “LO BAT”
display. Replacing the (4) each ‘AA’ batteries in
the separate weatherized ‘AA’ battery compart-
ment (sealed metal battery box) can be per-
formed in the field
There is no “No Access” to any
AMPTEC 601ES Explosive Safety DMM
internal electronics from the unit’s separate
internal metal box battery compartment.
Energizer 2500 mAHr
“on”
without having to re-
calibrate
.
601ES DMM
Press Down with Palm here
While opening release Latch A
Press Down with Palm here
While opening release Latch B
A. Release Latch
B. Release Latch
C. Automatic Air Pressure Equalization (Purge Valve)
Sect. A - Receiving and Initial Inspection
FIG. A-3
MADEINUSA
WWW.AMPTEC.COM
TEL1-800-350-5105
RESEARCH
AMPTEC
EXPLOSIVE SAFETY
DIGITAL MULTI-METER
MODEL NUMBER
6 ES
01
SERIAL NUMBER
601ES-501
5
