Associated Research HYPOTULTRA III 7620, Operation And Service Manual, Page: 132 / 148

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10.2. Calibration Initialization
Press and hold the calibration key on the rear panel with a pen, pencil, or small screwdriver
while powering ON the HypotULTRA III. The HypotULTRA III enters calibration mode after
the power on sequence is complete. The Initial Calibration screens will appear as follows:
C A L I B R A T I O N
^
A C 5 0 0 0 V A C R 2 0 W / 3 0 m A
D C 5 0 0 0 V A C R 2 0 W / 3 . 5 m A
v
I R 1 0 0 0 V A C R 2 W / 3 . 5 m A
A C T 3 0 . 0 0 m A D C 9 . 9 9 m A
< >
A C T 3 . 5 0 0 m A D C 3 . 5 0 0 m A
A C R 2 0 0 W / 3 0 m A < M o r e >
S e l e c t
C A L I B R A T I O N
^
D C 3 5 0 . 0 u A C O N T 2 0 0 0
Ω
I R 9 9 9 . 9 9 M
Ω
v
I R 9 9 9 9 . 9 M
Ω
I R 5 0 0 0 0 M
Ω
< >
C O N T 2 0 . 0 0
Ω
C O N T 2 0 0 . 0
Ω
S e l e c t
10.3. Selecting Specific Calibration points
When the calibration is initialized, the first calibration point is automatically selected. The
calibration is set up so that as each calibration point is completed the highlighted area will
automatically scroll to the next calibration point.
To manually select calibration points, use the up and down arrows to scroll the highlighted area
to the desired calibration point.
10.4. Calibration of Parameters
From the Calibration screens, use the arrow keys to scroll the Cursor to the parameter you wish
to calibrate. Once the cursor is pointing to the parameter you wish to calibrate, press the
“Select” soft key. A calibration prompt screen will now appear that describes the necessary
load and connection information for the parameter being calibrated.
The following is a list of the calibration parameters and an example of the prompt screen with
the details that will be displayed for each parameter (screen shown at top). Once you press
TEST, the Calibration data entry screen will appear for the selected parameter (screen shown at
bottom). Read the measurement from your standard and enter it using the numeric keypad.
You may now store the new calibration number by pressing the ENTER key or escape by
pressing the EXIT key or the RESET button.