5.
Milliammeter
for measuring test current
coming from the AMPTEC 630ES
Ohmmeter. Plug one lead into the panel jack
labeled “meter” and the other into the
common panel jack. The Analog
Milliammeter (current meter) is for
measuring actual 630ES test current (0 to 10
milliamperes fullscale). Use of the
milliammeter (+) panel jack and Common
panel jack (-) in the
FUNCTION TEST
SECTION
with the 630ES test leads
provides the 630ES analog millammeter test
current measurement connection.
6.
Negative sign
at the front of the digital
display indicates “low battery level” - time
to recharge.
7.
Fuse Access
- required for general
operation - 2 ampere fast blow type.
8.
Zero pot
- for adjusting the shorted
resistance offset of the test lead wiring when
in the 2 wire mode.
9.
Keylock Switch
- “
Safe
” mode shorts
inputs together (locked “
SAFE
” with the key
removed), disconnects & isolates any user
inputs from all 630ES measurement
electronics. “
Measure
” mode switches user
test lead/inputs to the 630ES Explosive
Safety Igniter Tester/Ohmmeter (
the key is
required to switch 630ES to the Measure
mode
) . Again, if the key is removed the
630ES cannot measure.
10.
Input jack
for connecting the 630ES
Ohmmeter meter test lead (plug-in red
banana jack)
to the analog milliammeter
.
11.
Input jack of 0.1 ohm test resistor
for
checking the lower end or near zero
accuracy of the 2 ohm and 20 ohm range.
12.
1 ohm test resistor for checking the
mid-scale functionality of the 2 ohm range.
13.
10 ohm test resistor for checking the
mid-scale functionality of the 20 ohm range.
14.
Input jack
for connecting to the 630ES
Ohmmeter common
test lead (plug-in black
banana jack). This common jack is also
“
Chassis Ground
”. The lining of the 630ES
Explosive Safety Igniter Tester case is
completely enclosed in a conductive
shielded Faraday Cage
. The AMPTEC
630ES Faraday Cage design provides
additional electronic noise immunity,
Electromagnetic Pulse (EMP) and
Electrostatic Discharge (ESD) protection.
All measurement cabling (i.e
Current
high
,
Voltage
high
,
Current
low
,
Voltage
low
) are
sheilded. The measurement leads
conductive
sheilding is all connected
to Chassis
Ground
(
Pin G
of the
Single Access
Multipurpose Notched Main Connector
and the Faraday Cage
) when the leads are
connected to the AMPTEC 630ES
Explosive Safety Igniter Tester. This
chassis
ground common terminal
may also be
connected to earth ground at the users
discretion. Chassis Grounding the 630ES
eliminates the possibility of an electrostatic
discharge coming from the 630ES to the
resistance device under test.
15.
100 ohm test resistor
for checking the
functionality of the 200 ohm range.
16. 100K ohm test resistor
for checking the
functionality of the 200K ohm range.
17.
190K ohm test resistor
- if shunted in
parallel during an “Open Circuit” test using
the 200 K ohm range, a shift < 40 counts
means the resistance under test is >200
Megohms.
18.
Water Resistant O-ring seal(s)
in lid
and under the edge of the front plate.
19.
Tight Squeeze Flip Latch Area
- pro-
vides a water resistant seal when closed.
While pressing down with palm on corner of
case, flip latch up to open.
