TB 9-6625-2802-35
cable assembly (B2) to digital voltmeter (A2) so as to
Army Calibration System). When the TI cannot be
adjusted within tolerance, annotate and affix DA Form
2417 (Unserviceable Equipment) tag.
b. Adjustments. No adjustments can be made.
c. If the TI can be used for certain maintenance
14. Final Procedure.
functions, even though not meeting all calibration
specifications, affix DA Label 163 (Limited or Special
a. Deenergize and disconnect all equipment and
Calibration) to identify equipment which can be used for
reinstall protective cover on TI.
some specific procedures.
b. In accordance with TM 38-750, annotate and
affix DA Label 80 (U.S.
Table 4. Power Supply Voltage Checks
Source
Minimum
Nominal
Maximum
Q10 emitter
+35.7
+36.5
+37.3
CR6 cathode
-0.6
-0.7
-0.8
CR13 anode
-6.06
-6.19
-6.32
CR14 anode
-22.1
-23.1
-24.1
Q13 emitter
-30.1
-31.6
-33.1
SECTION V
CALIBRATION PROCESS, OSCILLOGRAPHIC RECORDER
(4)Position pens on center lines numbered 1
NOTE
and 2.
All performance checks are made with
(5) Set INPUT to OPR and run about 100 mm
both preamplifiers installed.
(four divisions) of paper.
15. Paper Speeds.
(6) Measure distance between first and
eleventh time mark.
Chart speed
a. Performance Check.
accuracy is number of marks multiplied by
chart rate (1 mm = 0.0394 in.). The
(1) Connect time mark generator (A7) to
distance measured should be accurate to
either preamplifier input using cable (B3)
+0.05% and the accuracy can be
and adaptor (B1). Set generator to 1 SEC.
calculated from the following formula:
(2) Turn LINE switch to ON and preamplifier
Ddiff
INPUT to ZERO.
Error = DT X 100 DT
(3) Set CHART SPEED to 1 mm/SEC.
10