TB 9-6625-2208-35
IDENTIFICATION AND DESCRIPTION
1. Test Instrument
Identification. This bulletin provides instructions for the
Model 6V7070. The manufacturers' manuals and/or technical manuals were used as the
prime data source in compiling these instructions. The equipment being calibrated will be
referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. Variations among models are described in text, tables, and figures.
b. Time and Technique. The time required for this calibration is approximately 1
hour, using the dc and low frequency technique.
2. Forms,
Records, and
Reports.
a.
Forms, records, and
reports required for calibration personnel at all
levels are
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
3. Calibration
Description. TI
parameters and
performance specifications which
pertain to this calibration are in table 1.
Test instrument
parameters
Performance specifications
Range: 0 to 1500 V in 5 ranges
Dc voltage
Accuracy: (0.25% of reading + 1 digit)
Range: 0 to 10 A in 6 ranges
Dc current
Accuracy: 0 to 2 A ( 0.75% of reading + 1 digit)
10 A ( 1.5% of reading + 1 digit)
Range: 0 to 1000 V in 5 ranges
Ac voltage
Accuracy: All ranges, 45 Hz to 2 kHz (0.75% of reading + 3 digits)
310
All ranges, 2 kHz to 5 kHz (1.5% of reading + 5 digits)
All ranges, 5 kHz to 10 kHz (2.5% of reading + 9 digits)
6V7070
Range: 0 to 1000 V in 5 ranges
Accuracy: 200mV, 2V, 20V, 45 Hz to 5 kHz (0.75% of reading + 3 digits)
200V, 45 Hz to 1 kHz (0.75% of reading + 3 digits)
1000V, 45 Hz to 500 Hz (0.75% of reading + 3 digits)
1000V, 500 Hz to 1 kHz (1.5% of reading + 5 digits)
Ac current1
Range: 0 to 10 A in 6 ranges
Accuracy: 0 to 2 A, 45 Hz to 2 kHz (1.5% of reading + 3 digits)
10 A range, 45 Hz to 400 Hz (2.0% of reading + 3 digits)
Range: 0 to 20 MΩ in 6 ranges
Accuracy: 200 Ω to 2 MΩ (0.5% of reading + 1 digit)
20 MΩ range (1.5% of reading + 1 digit)
1Ac
current specifications are for information only (not checked in this procedure).