test the low end (i.e. linearity) of a given
630ES resistance range. The 0.1 ohm
resistor can be used to check the 630ES’s
zero offset. The AMPTEC 630ES’s zero
adjust knob can be adjusted while whilt the
test leads are connected to the 0.1 ohm
resistor. The 630ES zero knob can be
adjusted until the 630ES display shows 0.1
ohms.
Refer the AMPTEC 630ES to qualified
service personnel (i.e Calibration Lab) if you
suspect (i.e large error) the 630ES
measurement display readings don’t agree
with the resistor values labeled on 630ES
Function Test Section.
AMPTEC 630ES Front Panel Diagram
1.
Calibration/Maintenance access screws
,
also can be easily protected with a tamper
proof calibration sticker or seal.
2.
Purge Valve
provides air pressure
equalization to open the 630ES case after a
transit envolving an altitude change if unit
will not easily open.
3.
Handles
for lifting front plate, once the
access screws have been removed, for
calibration access
4
.
Single Access
Multi-purpose Notched
Main Connector
- 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.
