3)
Unplug/disconnect the polarized battery wiring
plug (black and red wires go into a keyed molex
connector). Remove the old battery pack and
replace with the new battery pack .
Reconnect the
battery plug to the mating connector, align the
notch to the connector with the mating connector
to plug together
.
4)
Secure the new battery pack in place and re-
connecting the battery retaining box/cover.
5)
Replace the 630ES igniter tester front panel top
plate and re-tighten the calibration access screws,
taking care not to pinch any wiring.
Low Battery Indicator:
The variable potentiometer - trimpot RV3 is
factory adjusted to have the low battery indicator
come on at 4.50 VDC. To make this adjustment,
remove the fuse
from the fuseholder located
on
the front panel of the 630ES
. Remove the calib.
access screws on perimeter the 630ES Igniter
Tester.
With an adjustable DC power supply, set the
power supply output to be 4.60 VDC. Observe
power supply polarity. Connect the power supply
to the wiring labeled “
MAIN
” + pos. and - neg.
located in the rear section of the MAIN PCB. (i.e
po power supply output to the anode side).
Adjust trimpot RV3 to have the low battery
indicator just come on (negative sign on display)
with 4.60 VDC applied from the power supply. An
increase in power supply voltage to 4.62 VDC
should have the low battery indicator go out. The
low battery indicator adjustment is now set.
Disconnect the power supply, and return the fuse
to the fuse holder. Replace the calibration access
screws on the perimeter of the unit's top plate of
the AMPTEC 630ES Safety Igniter Tester.
F-3-4. 2 Ohm Range Full Scale Adjustment
1.
Select the 2 ohm range. Connect the
4-Wire
Kelvin leads to the 1.00 ohm standard resistor.
2.
Adjust
RV6
(on main PCB) for a display reading
of 1.0000 Ohms.
3.
Check the 200 KOhm range with the 100 Kohm
Standard Resistor. All ranges must be within the
specifications outlined in Chapter B.
There are no
adjustments necessary for the 200 KOhm and 200
Kohm ranges.
Contact AMPTEC’s customer
service department if further technical support is
necessary.
F-4.
Battery Replacement Instructions
The rechargeable NICAD battery pack (D cell 5.0
AHr each) with internal fuse used in the 630 series
Igniter Tester is durable and should provide years
of trouble-free operation. Some military
maintenance procedures may require replacement
of the 630ES NICAD batteries as part of the
overall annual calibration plan, even if the batteries
are working well every other year. As with all
batteries, replacement will eventually be necessary.
Replacement battery pack may be ordered from
AMPTEC RESEARCH as stock #630-BAT which
is a quantity of
1 complete heat shrink wrapped
pack with fuse of
4 ea "D" cell Heavy Duty
NICAD
batteries). The battery replacement
process is :
1)
Remove the 10 calibration access perimeter
screws located around the edges of the unit's top
plate.
Carefully
lift up and tilt (using the handles)
the front panel top plate. Note: ~16" of umbilical
wire cabling connects the top plate electronics to
the main PCB inside the bottom of the 630 series
igniter tester case. Delicately place the 630 series
igniter tester front panel - top plate (face side up)
on the work bench next to the 630 series igniter
tester case, with the umbilical wiring intact.
2)
Locate and unscrew the metal battery box on the
bottom of the 630 series igniter tester (next to the
main PCB).
