TB 9-6625-2097-35
(3) Adjust test oscillator frequency for 10 Hz and output for 30 mm pen deflection
on TI.
(4) Set test oscillator EXPAND-NORMAL switch to EXPAND and adjust REF SET
(5) Adjust test oscillator frequency to 50 Hz while adjusting amplitude as necessary
to maintain 0 reference on test oscillator. If pen deflection does not remain between 29.1
and 30.9 mm, perform b below.
(6) Repeat techniques of (2) through (5) above for SIGNAL INPUT 2.
b. Adjustments. Adjust CH. 1
R205 FREQ. COMP. (CH. 2
R205) (fig. 1) for a 30 mm
pen deflection (R).
11. Final Procedure
a. Slide all manual ink valves with tubing attached to OFF position.
b. Deenergize and disconnect all equipment and reinstall protective cover on TI.
c. When all parameters are within tolerance, annotate and affix DA Label 80 (U. S.
Army Calibrated Instrument). When the TI receives limited or special calibration,
annotate and affix DA Label 163 (U. S. Army Limited or Special Calibration). When the TI
cannot be adjusted within tolerance, repair the TI in accordance with the maintenance
manual. When repair is delayed for any reason or the TI cannot be repaired with local
resources, annotate and affix DA form 2417 (U. S. Army Calibration System Rejected
Instrument) and inform the owner/user accordingly in accordance with TB 750-25.
SECTION IV
12. Preliminary Instructions
a. The
instructions outlined in
paragraphs 12 and
13 are preparatory to the
calibration
process. Personnel should become familiar with the applicable sections before beginning
the calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name and item identification number as listed in tables 2 and 3. For the identification of
equipment referenced by item numbers prefixed with A, see table 2, and for prefix B, see
8