Amptec Research 640N, Operation & Maintenance Manual

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4. Single Access Multi-purpose Notched Main
Connector
5. Milliammeter
6. Low Battery Indicator
7. Fuse Access
8. Padlock Holes
9. Battery Charger Storage Area
10. Input jack
11. Input jack of 0.1 ohm test resistor
12. 10 ohm test resistor
13. 1 Kohm test resistor
for either test lead hookup or
connection to the battery charger. With only one
connector to the outside world, it is physically
impossible to do both at the same time. The
power switch (item #21) must also be in the
“Off/Charging” while the battery charger is
connected to recharge the batteries.
for measuring test current
coming from the AMPTEC 640N 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 640N test current (0 to 10
milliamperes full-scale). Use of the
milliammeter (+) panel jack and Common panel
jack ( _ ) in the FUNCTION TEST SECTION
with the 640N test leads provides the analog
milliammeter 640N test current measurement
connection.
- Negative sign at the
front of the digital display indicates “low battery
level” time to recharge.
required for general operation -
2 ampere fast blow type.
- the AMPTEC 640N Igniter
Tester can be locked (i.e. during transit) to help
prevent tampering and provide added security.
-Press
Battery Charger’s Velcro against the Velcro
on the 640N storage area. There is additional
room to store the cord and connector. The 640N
test leads store inside the rim of the 640N’s lid
(see the laminate diagram in the lid).
for connecting the 640N
Ohmmeter meter test lead (plug in the
banana jack) to the analog milliammeter.
for
checking the lower end or near zero accuracy of
the 20 ohm range.
for checking the
midscale functionality of the 20 ohm range.
for checking the
midscale functionality of the 2000 ohm range.
tm tm
red
14. Common Test Lead Input jack
black
15. 100 Kohm test resistor
16. 1 Megohm test resistor
17. 1.9 Megohm test resistor
18. Water Resistant O-ring
19. Tight Squeeze Flip Latch Area
20. Resistance Ranges
D-4. Fuseholder and Charging System
Fuseholder
The Charging System
for
connecting to the 640N Ohmmeter (plug in
banana jack). With the 640N test leads
(red lead into “meter” jack and black lead
plugged into the common jack) connected, the
milliammeter displays the output current level
coming from the 640N Igniter Tester.
for checking the
functionality of the 200 Kohm range.
for checking the
midscale functionality of the 2 Megohm range.
-for checking the
full-scale functionality of the 2 Megohm range.
seal(s) in lid and
under the edge of the front plate.
- pro-vides
a water resistant seal when closed. While
pressing down with palm on corner of case, flip
latch up to open.
20 , 2000 , 200 K
and 2 M silicone rubber switch boots provide
water resistance (LED indicates range).
The fuseholder is mounted on the front panel
and contains a 2 amp in-line fuse (see item 7 of
the 640 series Igniter Tester Front Panel
Diagram.). This fuse is designed to protect the
internal battery pack from excessive charging
currents. Replace blown fuses with the same
type and rating only!
The slimline AC to DC battery charger with
connector is a notched connector that mates
with only two of the 8 pin/socket mating points
on the main panel mount connector (see Main
Connector J1 Section E6 for pinout definitions).
The connection is made on the 640 series
Igniter Tester front panel (see item 4 of the