Function Selection - Fluke 5320A User Manual

5320A
Users Manual
An optional high voltage divider/resistance multiplier is available to increase the
resistance range to 10 T with a maximum test voltage of 5.5 kV.

Function Selection

To set the high resistance output:
1. Press H.
2. If Short is displayed, press the Mode softkey. Then, using the cursor keys or rotary
3. The value established the last time the high resistance function was used is set and
4. If necessary, use the keypad, cursor keys, or rotary knob to set the resistance value.
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 UUT are made
through the HI HI and HI
available on the METER COM terminal. Whether or not the output is grounded is
indicated in the terminals part of the display.
3-wire resistance mode is sometimes necessary to improve calibration
stability. This is especially true for resistances over 100 M . The third
terminal is usually connected to the guard or ground terminal on the UUT.
If the UUT is equipped with a GND terminal, it should be connected to the
PE terminal.
The resistance on the Calibrator's terminals can either be floating or grounded. When
grounded, the HI
through an internal relay. See "To switch between grounded and ungrounded output"
below to change this setting.
4-6
Table 4-2. High Resistance Ranges with Maximum Voltage Rating (cont.)
Resistance range
1.0000 to 10.000 G
100 G
Notes:
[1] Maximum test voltage with the supplied banana leads is
1000 Vrms. For higher voltages, use leads rated at 1575 V
or above.
There are three selectable modes to the High Resistance Source function: Resistance,
100 G , and Short. The mode selected the last time the High Resistance function
was used is set.
The Short selection is used to short the Calibrator's output terminals to test for
maximum test current. This measured current is displayed in the PARAMETERS
area of the display as Maximum value.
knob, highlight Resistance and select it by pressing Select or pushing in on the
rotary knob.
displayed in the output area of the display.
LO terminal is connected to earth ground in the power line socket
Maximum applicable
voltage (AC+DC)PEAK
1,575 V
1,575 V
LO terminals. For 3-wire calibration, ground potential is
Note
[1]
[1]