SECTION I
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin
2. Calibration Data Card, DA Form 2416. Forms,
provides instructions for the calibration of Test Set TS-
records, and reports required for calibration personnel at
26/TSM, TS-26A/TSM and TS-26B/TSM which will be
all levels are prescribed by TM 38-750. DA Form 2416
referred to as the "TI" (test instrument) throughout this
(Calibration Data Card) must be annotated in accordance
bulletin.
with TM 38-750 for each calibration performed.
a. Model Variations.
Models differ slightly in
electrical and maintenance parts, but all models can be
3. Calibration Description.
TI parameters and
calibrated by this procedure.
performance specifications which pertain to this calibration
b. Time and Technique. The time required for this
calibration is approximately 1 hour, using the dc low
Table 1. Calibration Description
Test instrument
Performance
parameters
specifications
Dc Voltage:
Ranges
0 to 3,30,300,600
Sensitivity
1,000 ohms per volt
3 of full scale
Accuracy
Ranges
0 to 1K ohm (RX1, .35 ohms center scale)
0 to 10K ohm, 0 to 100K ohm, 0 to 1 megohm,
0 to 10 megohm.
Test Voltages*
0 to 10K ohm, 100K ohm, 1 megohm, 4.5 vdc
10% at midscale.
Accuracy
*This specification is for information only and is not necessarily verified In this procedure.
SECTION II
EQUIPMENT REQUIREMENTS
specifications listed in table 2. The accuracy's listed in
4. Equipment Required. Table 2 identifies the specific
table 2 provide a four-to-one accuracy ratio between the
equipment used in this calibration procedure.
This
standard and TI.
equipment is issued with secondary transfer standards
5. Accessories Required. The accessory listed in
Transfer Standards Calibration Set AN/GSM256, NSN
4931-00-525-8175, or electronic maintenance shops and
table 3 is
issued with secondary transfer standards
is to be used in performing this procedure. Alternate items
may be used by the calibrating activity when the
Transfer Standards Calibration Set AN/GSM-256, NSN
equipment listed in table 2 is not available. The items
4931-00-525-8175, or electronic maintenance shops and
selected must be verified to perform satisfactorily prior to
is to be used in this calibration procedure.
When
use and must bear evidence of current calibration. The
necessary, this item may be substituted by an equivalent
equipment must meet or exceed the minimum use
item unless specifically prohibited.
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