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Specifications
13
Accuracy ± ( [ % of Reading ] + [ Counts ] )
Function Range
1
Resolution Model 175 Model 177 Model 179
DC Amps
5
60.00 mA
400.0 mA (600 mA for 18 hrs)
6.000 A
10.00 A (20 A for 30 s)
0.01 mA
0.1 mA
0.001 A
0.01 A
1.0 % + 3 1.0 % + 3 1.0 % + 3
Hz
(AC- or DC- coupled,
V or A
2, 3, 4
input )
99.99 Hz
999.9 Hz
9.999 kHz
99.99 kHz
0.01 Hz
0.1 Hz
0.001 kHz
0.01 kHz
0.1 % + 1 0.1 % + 1 0.1 % + 1
Temperature -40 °C to +400 °C
-40 °F to +752 °F
0.1 °C
0.1 °F
NA NA
1 % + 10
1 % + 18
MIN MAX AVG For DC functions, accuracy is the specified accuracy of the measurement function ± 12 counts for changes longer than 275
ms in duration.
For AC functions, accuracy is the specified accuracy of the measurement function ± 40 counts for changes longer than 1.2 s
in duration.
1. All AC voltage and AC current ranges are specified from 5 % of range to 100 % of range.
2. Frequency is specified from 2 Hz to 99.99 kHz in Volts and from 2 Hz to 30 kHz in Amps.
3. Frequencies < 10 kHz are not specified in 600 mV AC, 60 mA AC, and 6 A AC ranges.
4. Below 2 Hz, the display shows zero Hz.
5. Amps input burden voltage (typical): 400 mA input 2 mV/A, 10 A input 37 mV/A.
Function Overload Protection
1
Input Impedance
(Nominal)
Common Mode Rejection Ratio
(1 kΩ Unbalanced) Normal Mode Rejection
Volts AC 1000 V RMS or DC > 10 MΩ < 100 pF > 60 dB @ DC, 50 or 60 Hz
Volts DC 1000 V RMS or DC > 10 MΩ <100 pF >120 dB @ DC, 50 or 60 Hz > 60 dB @ 50 Hz or 60 Hz
Open Circuit Test
Voltage
Full Scale Voltage To:
6.0 MΩ 50 MΩ
Short Circuit Current
Ohms 1000V RMS or DC < 1.5 V DC < 600 mV DC < 1.5 V DC < 500 µA
Diode test 1000V RMS or DC 2.4 to 3.0 V DC 2.4 V DC < 1.2 mA typical
1. 10
7
V-Hz maximum.
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