Gossen MetraWatt METRISO 1000 IR, Руководство по эксплуатации, Страница: 21 / 28

GOSSEN-METRAWATT 21
5)
By hand „
Ω →
" up to 300
Ω
6)
Generally:
Lamp automatically on = measured values are
within the permissible range (good); buzzer on = warning
7)
0.2
Ω
... 4.0
Ω
Measuring
function
Measuring
range
Nominal
voltage
U
N
Nominal/
Meas.
current
Open-circuit
voltage
U
O
Short-circuit
current
I
K
Internal
resistance
R
i
Lamp
switching
point
6)
Buzzer
6)
1000 V 0 ... 1000 V — — — — 880
±
50 k
Ω
— U > 1200 V
ISO-
Ω
U
N
=
250 V
0 ... 30 K
Ω
0 ... 300 K
Ω
0 ... 3 M
Ω
0 ... 30 M
Ω
0 ... 300 M
Ω
0 ... 3 G
Ω 1)
250 V
I
N
1.0 mA
≤
275 V
≤
2.0 mA —
on:
R
X
> 550 k
Ω
off:
R
X
< 500 k
Ω
on:
R
X
< 2 k
Ω
off:
R
X
> 6 k
Ω
ISO-
Ω
U
N
=
500 V
0 ... 30 k
Ω
0 ... 300 k
Ω
0 ... 3 M
Ω
0 ... 30 M
Ω
0 ... 300 M
Ω
0 ... 3 G
Ω 1)
0 ... 30 G
Ω 1)
500 V
I
N
1.0 mA
≤
550 V
≤
2.0 mA —
on:
R
X
> 1.1 M
Ω
off:
R
X
< 1.0 M
Ω
on:
R
X
< 2 k
Ω
off:
R
X
> 6 k
Ω
ISO-
Ω
U
N
=
1000 V
0 ... 30 k
Ω
0... 300 k
Ω
0 ... 3 M
Ω
0 ... 30 M
Ω
0 ... 300 M
Ω
0 ... 3 G
Ω 1)
0 ... 30 G
Ω 1)
1000 V
I
N
1.0 mA
≤
1100 V
≤
2.0 mA —
on:
R
X
> 2.2 M
Ω
off:
R
X
< 2.0 M
Ω
on:
R
X
< 2 k
Ω
off:
R
X
> 6 k
Ω
Ω
0 ... 3
Ω
, analog
0 ... 30
Ω
, digital
—
I
m
7)
≥
200 mA
4.5 V 250 mA — R
X
< 0.3
Ω
—