Fluke 79 III Calibration Information Manual page 5

Function Range
?
(45 Hz to 1 kHz) 4.000 mA
40.00 mA
4 A
10.00 A*
A
4.000 mA
40.00 mA
4 A
10.00 A*
Frequency** 99.99
(1 Hz to 20 kHz) 999.9
9.999 kHz
20.00 kHz
* Overload, 20 A for 30 seconds
For rectangular waveforms 25 % ≤ duty cycle ≤ 75 % . V ac ≤ 1 kHz.
**
Input Range*
400 mV ac
4 V ac
40 V ac
400 V ac
1000 V ac
* Maximum input for specified accuracy = 10 x Range or 600 V.
** Display rattle for sine waves below 500 Hz = 5 counts.
Function Overload
Protection*
L
1000 V dc
1000 V ac rms (sine)
L
1000 V dc
m
1000 V ac rms (sine)
K
1000 V dc
1000 V ac rms (sine)
e
1000 V dc,
1000 V rms (sine)
G
1000 V dc,
1000 V rms (sine)
7
*10 V-Hz max.
Table 1. Specifications (cont.)
Resolution
0.001 mA
0.01 mA
0.001 A
0.01 A
0.001 mA
0.01 mA
0.001 A
0.01 A
0.01 Hz
0.1 Hz
0.001 kHz
0.01 kHz
Frequency Counter Sensitivity and Trigger Level
Minimum Sensitivity (RMS Sine Wave)
500 Hz to 20 kHz
Not Applicable
0.3 V
3 V
30 V
300 V
Input Impedance
(Nominal )
>10 MΩ,
<100 pF
10 MΩ,
<100 pF
>10 MΩ,
<100 pF
(ac-coupled)
Open Circuit
Test Voltage
<1.3 V dc
<3.1 V dc
Accuracy Burden Voltage (Typical)
±(1.5 %+4)
11 mV/mA
±(1.5 %+2)
11 mV/mA
±(1.5 %+4)
0.03 V/A
±(1.5 %+2)
0.03 V/A
±(0.5 %+5)
11 mV/mA
±(0.5 %+2)
11 mV/mA
±(0.5 %+5)
0.03 V/A
±(0.5 %+2)
0.03 V/A
±(0.01 %+1)
±(0.01 %+1)
±(0.01 %+1)
±(0.01 %+1)
1.0 Hz to 500 Hz**
Not Applicable
0.7 V
7 V
70 V
Not Applicable
Common Mode
Rejection Ratio
(1 kΩ Unbalance)
>120 dB at dc,
50 Hz, or 60 Hz
>120 dB at dc,
50 Hz, or 60 Hz
>60 dB, dc to
60 Hz
Full Scale Voltage
<4.0 MΩ <40 MΩ
<450 mV dc <1.3 V dc
2.45 V dc
Series III Multimeter
Specifications
Not Applicable
Normal Mode
Rejection
>60 dB at 50 Hz
or 60 Hz
>60 dB at 50 Hz
or 60 Hz
Short Circuit Current
<250 µA
600 µA typical
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