115C and 117C 
Users Manual 
22 
Table 1 Accuracy Specifications (cont.) 
Function Range Resolution 
Accuracy 
± ([% of Reading] + [Counts]) 
Model 
AC Amps True-
rms
[1]
 
(45 Hz to 500 Hz) 
6.000 A  
10.00 A
[3]
 
20 A for 30 seconds max., 
10 minutes rest min. 
0.001 A 
0.01 A 
1.5 % + 3 
115, 117 
DC Amps 
6.000 A 
10.00 A
[3]
 
20 A for 30 seconds max., 
10 minutes rest min. 
0.001 A 
0.01 A 
1.0 % + 3 
115, 117 
Hz (V or A input)
[2]
 
99.99 Hz 
999.9 Hz 
9.999 kHz 
50.00 kHz 
0.01 Hz 
0.1 Hz 
0.001 kHz 
0.01 kHz 
0.1 % + 2 
 115, 117 
Notes: 
[1]  All ac ranges except Auto-V LoZ are specified from 1 % to 100 % of range. Auto-V LoZ is specified from 0.0 V. 
Because inputs below 1 % of range are not specified, it is normal for this and other true-rms meters to display non-
zero readings when the test leads are disconnected from a circuit or are shorted together. For volts, crest factor of 
≤3 at 4000 counts, decreasing linearly to 1.5 at full scale. For amps, crest factor of ≤3. AC volts is ac-coupled. Auto-
V LoZ, AC mV, and AC amps are dc-coupled. 
[2]  AC Volts Hz is ac-coupled and specified from 5 Hz to 50 kHz. AC Amps Hz is dc-coupled and specified from 45 Hz 
to 5 kHz. 
[3]  >10 A unspecified.