5322A
Operators Manual
36
Output Selection
To set the high resistance output:
1. Push .
The selectable modes to the high-resistance source function are:
• 5322A: Resistance, 100 GΩ, Open, Short, Help
• 5322A/5: Resistance, 100 GΩ, Open, Short, Help
The Short selection is used to short the output terminals to test for the
maximum test current up to 10 mA. This measured current is displayed in the
PARAMETERS area of the display as Maximum value. The Open selection is
used to test the open circuit maximum test voltage. This measured parameter
is shown in the PARAMETERS area of the display. The 100 GΩ resistance
value is internally connected to the output terminals in this case.
2. If Short or Open is selected, push the Mode softkey. Then, use the cursor
keys or rotary knob to highlight Resistance and select it by pushing Select or
pushing in the rotary knob.
3. The value established the last time the high resistance function was used is
set and displayed in the OUTPUT area of the display.
4. Use the keypad, cursor keys, or rotary knob to set the resistance value.
5. For this function, the resistance is output through the terminals with either a
2-wire or 3-wire connection. For 2-wire resistance calibration, connections to
the DUT are made through the HIΩ HI and HIΩ LO terminals.
Note
3-wire resistance mode is sometimes necessary to improve
calibration stability. This is especially true for resistances over
100 M
Ω
. The third terminal is usually connected to the guard or
ground terminal on the DUT. If the DUT is equipped with a GND
terminal, it should be connected to the PE terminal. See Types of
Megohmmeters for more details.
6. The resistance on the Product OUTPUT HI and LO terminals can either be
floating or grounded. When grounded, the HIΩ LO terminal is connected to
earth ground in the power line socket through an internal relay.
7. Using the Terminals part of the display as a guide, connect the DUT terminals
to the Product OUTPUT HI and LO terminals.
8. After confirming all settings and connections are correct, push to connect
the DUT to the selected resistance.
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