175, 177, 179 
Users Manual 
22 
 
Function Range
 [1]
 Resolution 
Accuracy ±( [ % of Reading ] + [ Counts ] ) 
175 177  179 
Temperature 
[10]
 
-40 °C to +400 °C 
-40 °F to +752 °F 
0.1 °C 
0.1 °F 
NA NA 
1 % + 10 
[11]
 
1 % + 18 
[10]
 
MIN MAX AVG  
For dc functions, accuracy is the specified accuracy of the measurement function ±12 counts for changes longer than 350 ms in 
duration. 
For ac functions, accuracy is the specified accuracy of the measurement function ±40 counts for changes longer than 900 ms in 
duration. 
[1]  All ac voltage and ac current ranges are specified from 5 % of range to 100 % of range. 
[2]  Crest factor of ≤3 at full scale up to 500 V, decreasing linearly to crest factor ≤1.5 at 1000 V. 
[3]  For non-sinusoidal waveforms, add -(2 % reading + 2 % full scale) typical, for crest factors up to 3. 
[4]  In the 9999 μF range for measurements to 1000 μF, the measurement accuracy is 1.2 % + 2 for all models. 
[5]  Amps input burden voltage (typical): 400 mA input 2 mV/mA, 10 A input 37 mV/A. 
[6]  400.0 mA accuracy specified up to 600 mA overload. 
[7]  >10 A unspecified. 
[8]  Frequency is specified from 2 Hz to 99.99 kHz in Volts and from 2 Hz to 30 kHz in Amps. 
[9]  Below 2 Hz, the display shows zero Hz. 
[10]  In RF field of 3 V/m specified accuracy ±5 °C (9 °F). 
[11]  Does not include error of the thermocouple probe.