Lamp Functions; List Of Abbreviations And Their Meanings - Gossen MetraWatt ProFiTEST C-GB int. Operating Instructions Manual

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
multiple dot matrix display, 64 x 128 pixels, illuminated
Dimensions 275 mm x 140 mm x 65 mm (without meas. cables)
Weight approx. 1.2 kg with batteries
Protection housing: IP 52 per DIN VDE 0470 part 1/EN 60529
with pressure compensating diaphragm of
microporous ePTFE, non-aging, dia. 8 mm in battery
compartment cover
Extract from table on the meaning of IP codes
IP XY Protection against
st
(1 digit X) foreign object entry
5 dust protected
9.1

Lamp Functions

Lamp Status Measuring
Function
lights up
PE all
red
Netz lights up
I / R / Z

E Loop
Mains green
Netz
blinks green I / R / Z

E Loop
Mains
Netz
blinks red I / R / Z

E Loop
Mains
I

lights up
U
L
red
R
E
lights up
RCD/FI I

red
The Netz/Mains lamp is not activated for measurement of U
GMC-I Messtechnik GmbH
IP XY Protection against the
nd
(2 digit Y) penetration of water
vertically falling drops with
2
enclosure tilted 15
Function
Device on and potential difference  100 V between
finger contact and PE (protective contact),
frequency: f > 45 Hz
3-pole connection: line voltage approx. 170 V to
253 V, measurement enabled
2-pole connection (e.g. N conductor not connected):
line voltage approx. 170 V to 253 V, measurement
enabled
Line voltage < approx. 170 V or > 253 V,
measurement disabled
– Contact voltage U or U > 25 V or > 50 V
IN I
– Safety shutdown has occurred
– Limit value for R exceeded
E
The RCCB was not tripped, or was tripped too late
during the trip test
.
L-PE
10

List of Abbreviations and their Meanings

RCCBs
I Tripping current

I Nominal residual current
N
I Rising test current (fault current)
F
PRCD Portable RCD
R Calculated earthing resistance or earth electrode loop resistance
E
Selective RCCB
S
SRDC Socket RCD (permanently installed)
t Time to trip
T
U Contact voltage at the moment of tripping
I
U Contact voltage related to nominal residual current I
IN
U Contact voltage limit value
L
Overcurrent Protective Devices
I Calculated short-circuit current (at nominal voltage)
sc
Z Loop impedance
Loop
Earthing
R Functional earthing resistance
F
R Measured earthing resistance
E
R Earth electrode loop resistance
ELoop
Current
I Measuring current
M
I Nominal current
N
I Test current
T
Voltage
f Line voltage frequency
f Nominal frequency for nominal voltage
N
U Earth electrode voltage
E
U Voltage between two phases
L-L
U Voltage between L and N
L-N
U Voltage between L and PE
L-PE
U Nominal line voltage
N
U Highest voltage measured while
3~
determining phase sequence
N
33