Tektronix 213 DMM Instruction Manual page 11

Specifications-213 Service
TABLE 1-1 (continued)
Digital Multimeter Electrical Specifications
Characteristic
Performance Requirement
Settling Time
2 seconds for reading within 1 %
Max Crest Factor
1
Approximately 5
DC AND RMS CURRENT
Range 0. 1 to 1000 mA
Resolution
100 nA at 0.1 mA full scale (reading at least 10% of full
scale)
Input Shunt Resistance (Approximate)
0.1 mA
1000 n
1 mA
100 n
10mA
10.2 n
100 mA
1.2 n
1000 mA o.3n
Max Safe Input Current
2 Arms on any scale or 3 A peak
DC CURRENT
Accuracy (+20°C to +30°C, batteries only) Temp Coef is (within 0.02% of reading +0.04% of full scale)
per° C
NOTE
When operating on power-line voltage, add 10°C
to the ambient temperature for internal heating
before computing accuracy
0.1 mA Range
Within 0.5% of reading ±3 counts
1 mA to 1000 mA
Within 0.25% of reading ±3 counts
Sett I ing Ti me
1.5 seconds for reading within 0.1 %
RMS CURRENT
Accuracy (+20° C to +30° C)
Temp Coef is (within 0.05% of reading+ 0.1 % of the full
scale) per ° C
NOTE
Crest factor< 2 and reading at least 10% of full
NOTE
scale. Accuracy limits increase linearly for crest
When operating on power-line voltage, add 10° C
factor over 2; up to twice indicated limit for
to the ambient temperature for internal heating
crest factor of 5
before computing accuracy
1
Supplemental information only.
REV APR 1982
1-3