Fluke 12, Руководство по обслуживанию, Страница: 16 / 51

Introduction and Specifications
Specifications
1
1-5
Table 1-1. Specifications (cont)
Function Overload
Protection* Input Impedance
(Nominal) Common Mode
Rejection Ratio
(1 k
Ω
Unbalance)
Normal Mode
Rejection
Volts DC 600V rms >10 M
Ω
<100 pF
k
CHEK
& LoZ = >2 k
Ω
<200 pF**
>100 dB at dc, 50 Hz,
or 60 Hz >50 dB at 50 Hz
or 60 Hz
Volts AC 600V rms >5 M
Ω
<100 pF
k
CHEK
& LoZ = >2 k
Ω
<200
pF** (ac-coupled)
>60 db, dc to 60 Hz
Resistance Open Circuit
Test Voltage Full Scale Voltage To
4.0 M
Ω
40 M
Ω
Short Circuit
Current
600V rms <1.5V dc
dc
<450 mV 1.5V dc <500 uA
Diode 600V rms 2, 4-3. 0V dc 2,400V dc 0.95 mA typical
* 3 x 106 V Hz Maximum
** Models 11 and 12 only
MIN MAX Recording with Elapsed Time (Model 12 Only)
Specified accuracy of the measurement function ± 12 digits for changes >200 ms in duration (±40 digits in
ac). Typical 100 ms response to 80%.
Elapsed Time Resolution Accuracy
0 to 100 hours 1 minute 0.3% typical
(99:59)
Continuity Capture (Model 12 Only)
Detects opens or shorts of 250
µ
s or longer.