(i.e. linearity) of a given 620A 4R resistance
range.
D-3. AMPTEC 620A 4R 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 620A 4R case after a
transit involving 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.
Test Lead Connection Panel Jacks
- The
48” long dual banana Alligator Test Leads plug
directly into the Voltage High and Voltage low ,
and Current high and Current low panel jacks.
The spacing of the panel jacks only allows
vertical connection of the dual banana jack test
leads to prevent mis-connection.
5. Battery Charger Jack
- When the low
battery indicator (negative sign in the front of
the display) comes on , plug in the mating jack
1
1
8
1
1
1
1
1
1
2
3
3
4
6
-
7
12
9
10
13
10
620A 4R
WATER-RESISTANT
IGNITER TESTER
Battery
Charger
V
HI
VOLTAGE
V
LO
HI
CURRENT
LO
5
Summary of Contents for 620A 4R
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