Calibration Constants Restoration

TB 9-6625-2341-24

(34)

Reset calibrator.

(35)

Connect equipment as shown in figure 3.

(36)

Random sampling by pressing pushbuttons sequence (a) through (c) below:

(a) Toggle

to display/highlight (

CAL 25).

or

(b) Set oscilloscope calibrator to produce an EDGE square wave, 1 MHz at .6 V p-p.

(c) Press (F5) READY, then wait till display/highlight READY is not highlighted.

(37)

Reset oscilloscope calibrator.

(38)

Connect equipment as shown in figure 8.

(39

Set calibrator to produce +12 V dc.

(40)

Press (F3) METER to display/highlight METER.

NOTE

CAL numbering sequence might not be in step.

(41)

Set calibrator to standby.

(42)

Remove +12 V dc from calibrator to TI.

(43)

Connect equipment as shown in figure 9.

(44) Select linearity calibration, zeroing ranges and ohms ranges by pressing

pushbuttons sequence (a) through (f) below:

(a) Toggle

to display/highlight (

CAL 1).

or

(b) Press (F5) READY, then wait till display/highlight READY is not highlighted.

NOTE

During this calibration step many internal calibration

constants are being set. This process can last up to 3 minutes.

(c) Toggle

to display/highlight (

CAL 2).

or

(d) Press (F5) READY, then wait till display/highlight READY is not highlighted.

CAL 10).

(e) Toggle

to display/highlight (

or

(f)

Press (F5) READY, then wait till display/highlight READY is not highlighted.

(45)

Disconnect all shorts from TI.

(46) Select INPUT A, 300 mV range and zero for open input by toggling

to

or

display/highlight ( or

CAL 3). Press (F5) READY, then wait till display/highlight

READY is not highlighted.

(47)

Connect equipment as shown in figure 5.

NOTE

The readings on the display may not show what's being applied.

35