TB 9-6625-1918-24
Figure 4. Test instrument - left side view.
(8) Note error from 1.0 V on multimeter and adjust R8 (fig. 4) to double the error.
(For example, if multimeter indicates 0.9 V, adjust R8 until multimeter indicates 0.8 V.) (R).
(9) Repeat (4) through (8) above until no error is present.
10. Bolometer (Thermistor) Mount
a. Performance Check
(1) Set POWER RANGE (RANGE on some models) switch to 1.0 MW and zero the
TI meter, using BOLO BIAS CURRENT (BIAS CURRENT on TS-799/U) switch and
ZERO COARSE and FINE controls.
(2) Connect equipment as shown in figure 5.