True RMS Multimeters
Specifications
5
Accuracy ± ( [ % of Reading ] + [ Counts ] )
Function Range
1
Resolution Model 175 Model 177 Model 179
AC Volts
2,3
600.0 mV
6.000 V
60.00 V
600.0 V
1000 V
0.1 mV
0.001 V
0.01 V
0.1 V
1 V
1.0 % + 3
(45 Hz to 500 Hz)
2.0 % + 3
(500 Hz to 1 kHz)
1.0 % + 3
(45 Hz to 500 Hz)
2.0 % + 3
(500 Hz to 1 kHz)
1.0 % + 3
(45 Hz to 500 Hz)
2.0 % + 3
(500 Hz to 1 kHz)
DC mV 600.0 mV 0.1 mV 0.15 % + 2 0.09 % + 2 0.09 % + 2
DC Volts 6.000 V
60.00 V
600.0 V
0.001 V
0.01 V
0.1 V
0.15 % + 2
0.09 % + 2
0.09 % + 2
1000 V 1 V 0.15 % + 2 0.15 % + 2 0.15 % + 2
Continuity 600 Ω 1 Ω Meter beeps at < 25 Ω, beeper turns off at > 250 Ω; detects opens or shorts
of 250 μs or longer.
Ohms
600.0 Ω
6.000 kΩ
60.00 kΩ
600.0 kΩ
6.000 MΩ
50.00 MΩ
0.1 Ω
0.001 kΩ
0.01 kΩ
0.1 kΩ
0.001 MΩ
0.01 MΩ
0.9 % + 2
0.9 % + 1
0.9 % + 1
0.9 % + 1
0.9 % + 1
1.5 % + 3
0.9 % + 2
0.9 % + 1
0.9 % + 1
0.9 % + 1
0.9 % + 1
1.5 % + 3
0.9 % + 2
0.9 % + 1
0.9 % + 1
0.9 % + 1
0.9 % + 1
1.5 % + 3
Diode test 2.400 V 0.001 V 1 % + 2
Capacitance
1000 nF
10.00 μF
100.0 μF
9999 μF
4
1 nF
0.01 μF
0.1 μF
1 μF
1.2 % + 2
1.2 % + 2
1.2 % + 2
10 % typical
1.2 % + 2
1.2 % + 2
1.2 % + 2
10 % typical
1.2 % + 2
1.2 % + 2
1.2 % + 2
10 % typical
AC Amps
5
(True RMS)
(45 Hz to 1 kHz)
60.00 mA
400.0 mA
6.000 A
10.00 A
0.01 mA
0.1 mA
0.001 A
0.01 A
1.5 % + 3
1.5 % + 3
1.5 % + 3
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.
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