Figure 4. DC accuracy, low ranges

TB 9-6625-2185-24

(8) Ensure control board bit switches are in OPERATE MODE (fig. 3).

Figure 4. DC accuracy, low ranges - equipment setup.

(9) Press pushbuttons as listed in (a) through (e) below:

1, SELECT CHNL.

(a)

MODE PWR.

(b)

0, CAL FAC dB.

(c)

0, REF LVL dB.

(d)

ZERO (display will indicate cccc while zeroing and cc03 when complete).

(e)

NOTE

TI will require zeroing often on most sensitive ranges. To zero

TI, set calibrator to 0 mV dc and OPR. Press TI ZERO

pushbutton.

(10) Set control board bit switches to CALIBRATE MODE 1 (DC CAL) (fig. 3).

(11) Press pushbuttons as listed in (a) through (c) below:

(a) 1000, RANGE AUTO.

(b) 0, RANGE HOLD.