26
GMC-I Messtechnik GmbH
9
Characteristic Values
1)
Display:
4¾ places in the range of 300 m
Ω
, 3
Ω
, 30
Ω
,
3¾ places in the range of 30 m
Ω
,
A different sampling rate can be selected in the rAtE menu for saving and
transmitting measured values.
2)
at 0
° …
+ 40
°
C
3)
In the event of an overload (connections I+, I–), the integrated 500 mA/600V
fuse is triggered.
4)
applies as from 10% of the measuring range
EX parameters: Vo = 6 V, Co = 559 μF, Io = 576 mA,
Lo = 300 μH, Po = 0,785 W
Key
rdg. = measured value, d = digit, 4 L = 4-wire measurement
Influencing Quantities and Influence Error
1)
With zero balancing
1)
With zero balancing
Real-Time Clock
Accuracy
±
1 min/month
Temperature Influence
50 ppm/K
Reference Conditions
Ambient temperature
+23
°
C
±
2 K
Relative humidity
40 ... 60%
Battery voltage
5.0 V
±
0.1 V
Measuring
Function
Measuring
Range
Resolution at Upper
Range Limit
4¾ 30000 / 3¾ 3000
1)
Open-circuit
voltage approx.
Meas. cur-
rent approx.
m
Ω
(4 L)
30 m
Ω
0.01
m
Ω
4
…
6 V
100 mA
300 m
Ω
0.01
m
Ω
100 mA
3
Ω
0.1
m
Ω
10 mA
30
Ω
1
m
Ω
10 mA
Measuring
Function
Intrinsic Error at Max. Resolution
under Reference Conditions
Overload Capacity
2)
±
(...% rdg. + ... d)
Value
Time
m
Ω
(4 L)
30 m
Ω
2 + 20
±
0.6 V
3)
cont.
300 m
Ω
1 + 20
4)
3
Ω
1 + 10
30
Ω
1 + 10
Influencing
Quantity
Sphere of
Influence
Measuring Range
1)
Influence Error
±
(... % rdg. + d)/10 K
Temperature
0
…
+21
°
C
and
+25
…
+40
°
C
m
Ω
,
Ω
1 + 10
Influencing
Quantity
Sphere of
Influence
Measuring Range
1)
Influence Error
Relative
humidity
90 %
3 days
instrument off
All measured
quantities
1 x intrinsic error