Gossen MetraWatt GEOHM C Manual De Instrucciones página 66

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Electrical Safety
Safety Class
II per IEC 61010-1
Operating Voltage
250 V
Test Voltage
2.3 kV
Measuring Category
250 V CAT II
Fouling Factor
2
Fuse
F0.1H250V
Electromagnetic
Compatibility (EMC)
IEC 61326-1/EN 61326-1
Data Interface
Type
infrared interface (SIR/IrDa)
bidirectional, half-duplex
Format
9600 baud, 1 start bit, 1 stop bit, 8 data bits,
no parity, no handshake
Range
max. 10 cm, recommended distance: < 4 cm
Mechanical Design
Display
dot matrix: 64 x 128 pixels, illuminated
Dimensions
275 mm x 140 mm x 65 mm
(without measurement cables)
Weight
approx. 1.2 kg with batteries
Protection
housing: IP 54 per EN 60529
with pressure compensating diaphragm made of
microporous ePTFE, non-aging, dia. 8 mm in battery
compartment cover
Extract of table on the meaning of IP codes
IP XY
Protection against
st
(1
digit X)
foreign object entry
0
not protected
≥ 50.0 mm ∅
1
≥ 12.5 mm ∅
2
≥ 2.5 mm ∅
3
≥ 1.0 mm ∅
4
5
dust protected
6
dust-tight
30
IP XY
Protection against the pene-
nd
(2
digit Y)
tration of water
0
not protected
1
vertically falling drops
vertically falling drops with en-
2
closure tilted 15°
3
spraying water
4
splashing water
5
water jets
6
powerful water jets
Display Values including Allowances for Measuring Error
Table for the determination of maximum display values for low earth resis-
tances by making allowances for the tester's measuring error:
Maximum
Limit Value
Display Value
1.00 Ω
0.84 Ω
2.00 Ω
1.74 Ω
5.00 Ω
4.44 Ω
10.0 Ω
8.94 Ω
20.0 Ω
17.4 Ω
Maximum
Limit Value
Display Value
50.0 Ω
44.4 Ω
100 Ω
89.4 Ω
500 Ω
444 Ω
894 Ω
1.00 kΩ
5.00 kΩ
4.44 kΩ
GMC-I Messtechnik GmbH

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