6A The LCD Display
"
"
7 Display Backlight
.
will indicate
when it is time to replace the batteries. It will
typically come on when the AMPTEC 601ES
DMM internal batteries (4 ea. 1 5VDC alkalines
Duracell Mn1500 or better) reach approx.
3.6 VDC. To change the batteries remove the
screws securing the battery compartment. The
back side of the battery compartment cover is
lined with a sponge fill neoprene gasket to help
provide a water resistant battery compartment.
Carefully pull the battery holder out and remove
the cable-tie securing the batteries. Observe
battery polarity when replacing the "AA" batter-
ies. Re-secure the four new batteries in the
holder with a new cable tie, then return it to the
battery compartment and re-secure the compart-
ment lid (screws). See section A-4 for diagram.
.
is activated when the push
button is held down. Display is back-lit with a
yellow green hue. This process aids in the visi-
bility of the digits when exterior lighting is dim.
Please note the use of this feature should be used
sparingly in order to conserve battery reserves.
LO BAT
.
-
inadvertent power loss (i.e. bumping of the
power switch and accidentally turning the meter
"OFF" .
The AMPTEC
601ES Explosive Safety DMM is factory set,
using internal PCB jumpers, to automatically
turn-off after (30) minutes of inactivity (no
range or function change) to conserve battery
power.
5.
)
:
Automatic Turn-Off
Protection Fuse
Stray Current Range
(
)
6. The LCD Display
20,000 count
, 4 ½ digit
A
V
Mk
>>> OR
(5.0 amp fast blow type)
the 2.0 ampere
measurement . The type of fuse used is a Little
fuse 3AG or equivalent.
is
(1 and
four 9’s)
design. LCD display
annunciators includes
(Amperes),
(Volt
annunciator),
(Megakilo Ohms) and the
(Over Range). Unused LCD display
annunciators include "SELF-TEST" and "OK"
which will be available for future capabilities
with AMPTEC RESEARCH safety meters.
protects
MILLAMPERES
+ HIGH
RESEARCH
AMPTEC
601ES
EXPLOSIVE SAFETY
DIGITAL MULTIMETER
STRAY CURRENT
PRESS TO MEASURE
milliammeter
0 - 10 mA DC
PRESS TO MEASURE
CASE
GROUND
2.0 KOHM
20 OHM
200 OHM
2.0 OHM
20 KOHM
LOW
V
I9999
>>> OR
LOBAT
V
A
. . . .
1
1
1
8
9
1
14
11
12
POWER
ON
OFF
STRAYCURRENT
FUSE(5AMPERE)
1
4
13
13
3
2
15
16
16
5
6A
6A
7
1
1
3
2 Wire
4 Wire
8
1
10
V
LO
V
HI
50mV - 5mA
SIGNAL
SOURCE
DISPLAY
BACKLIGHT
1
RESEARCH
AMPTEC
CALIBRATED
MODEL#.
SER NO.
DATE
DUE
TamperProofSeal/Sticker
Calibrationvoidifremoved
601ES
601ES-503
05APR2005
05APR2006
I
FUNCTION / RANGE
2 AMP
AC/DC
600VRMS
200V
AC/DC
20V
AC/DC
2.0V
AC/DC
press/hold
Battery Compartment
4each "AA"Alkaline
18
17
19
1
6
6
6
6
6
601ES EXPLOSIVE SAFETY DMM
FIG. D-3
Sect. D - Operation, Functional Self-Test and Use
11
