Fluke 87V Ex, Руководство по калибровке

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87V EX
Calibration Manual
8
Electrical Characteristics of the Terminals
Function
Overload
Protection
[1]
Input Impedance
(nominal)
Common Mode
Rejection Ratio
(1 k
Ω
unbalance)
Normal Mode Rejection
L 1000 V rms
10 M
Ω
< 100 pF > 120 dB at dc, 50 Hz or
60 Hz
> 60 dB at 50 Hz or 60 Hz
F
mV
1000 V rms
10 M
Ω
< 100 pF > 120 dB at dc, 50 Hz or
60 Hz
> 60 dB at 50 Hz or 60 Hz
K
1000 V rms
10 M
Ω
< 100 pF
(ac-coupled)
> 60 dB, dc to 60 Hz
Open Circuit Full Scale Voltage Typical Short Circuit Current
Test Voltage
To 6.0 M
Ω
50 M
Ω
or
60 nS
600
Ω 6 k 60 k 600 k 6 M 50 M
e 1000 V rms < 7.9 V dc < 4.1 V dc < 4.5 V
dc 1 mA 100
µA 10 µA 1 µA 1
µA 0.5
µA
G 1000 V rms < 3.9 V dc 3.000 V dc 0.6 mA typical
[1] 106 V Hz max
MIN MAX Recording
Nominal Response Accuracy
100 ms to 80 %
Specified accuracy
±
12 counts for changes > 200 ms in duration
(
±
40 counts in ac with beeper on)
100 ms to 80 %
(dc functions)
120 ms to 80 %
(ac functions)
250 µs (peak)
[1]
Specified accuracy
±
12 counts for changes > 200 ms in duration
Specified accuracy
±
40 counts for changes > 350 ms and inputs > 25 % of range
Specified accuracy
±
100 counts for changes > 250 µs in duration
(add
±
100 counts for readings over 6000 counts)
(add
±
100 counts for readings in Low Pass mode)
[1] For repetitive peaks: 1 ms for single events.
Basic Maintenance
XW
Warning
To avoid possible electric shock or personal injury:
•
Remove the test leads and any input signals before opening
the case or replacing the battery or fuses.
•
Repairs or servicing covered in this manual should be
performed only by qualified personnel.
Cleaning the Meter
XW
Warning
To avoid possible electric shock, personal injury, or damage to
the meter, never allow water inside the case.
W
Caution
To avoid damaging the Meter, never apply abrasives, solvents,
aromatic hydrocarbons, chlorinated solvents, or methanol-
based fluids to the Meter.
Periodically wipe the Meter case with Fluke “MeterCleaner
TM
” or a damp cloth and mild
detergent.