ETC A-1885-06211S-GEOXSEARTHM730ERKIT

Earth / Ground Testers
UNILAP GEO / GEO X
UNILAP GEO
Automatic determination of auxiliary earth electrode- and proberesistance
● Displays all measuring results for as long as desired
● Programmable LIMITS - optical and acoustical warning at limit
infringement
● Long battery service-life because of short-time-measuring method
and automatic switch-off
● Operator quick reference on rear of instrument
● Splashproof case IP56 (outdoor application)
● Developed, designed and manufactured as per DIN ISO 9001
UNILAP GEO X
Additionally:
● Measurements with current clamps: Selective, stakeless
● Resistance measurements with 250mA short circuit current
● Output of measured values via interface on printer or PC
● Measuring protocol via PC-software
●
Description
At the locations involving the generation, distribution and consumption
of electrical energy, certain safety measures must be met in order to
protect human life. In many cases, these safety measures are
national and international regulations which must be checked regularly.
Earthing, the connection of exposed conductive parts to the earth in
case of a fault, represents the most fundamental safety measure.
Real life requires the earthing of transformers, high and medium voltage
power pylons, railway tracks, tanks, vats, foundations and lightning
protection systems. Large fields of applications, the seasonal variations
of the earth resistance, variations from weather and ground conditions,
require test instrument able to collect and document additional
information in order to ensure that the conditions under which the
measurement was taken are known and that the results are
reproducible. Finally, the device must provide all of this information
reliably with the greatest possible simplicity and ease of use.
The UNILAP GEO and UNILAP GEO X provide the perfect solution
by combining the latest technology and years of LEM experience into
a compact, field-rugged and extremely easy to use instrument. In
addition to performing standard 3- and 4-pole earth resistance
measurements, an innovative process accurately measures individual
earth electrode resistances in single and meshed earthed systems
without disconnecting any parallel electrodes! One specific
application of this capability is quick and accurate measurement of
power pylon grounds. The UNILAP GEO (X) also incorporates the
first truly automatic frequency control (AFC) to minimise interference.
Before measuring, the instruments identify existing interference and
select a measurement frequency to minimise its effect. The UNILAP
GEO (X) incorporates microprocessor controlled automatic
measurements including checking probe hookup to ensure
measurements are taken correctly and measuring all probe ground
resistances to ensure reliable, repeatable results. Probe resistance
and auxiliary earth resistance are also measured and displayed. All
measured data, as well as the time-of-day the measurement was
taken, can be sent to computer or directly to the retrofitable DOCUPACK with built-in memory, printer and RS232 interface.
ELMES · HEME · NORMA
In real life situations this means:
- Select function
- Press START button
- Read measured value
UNILAP GEO and UNILAP GEO X also offer extra features:
●
●
●
●
Earthing resistance 3-pole and 4-pole of 0.001W...300kW,
with voltages of 20 V/48 V AC,
with frequencies of 94, 105, 111, 128 Hz or AFC (Automatic
Frequency Control), with automatic test of test lead connection
and adjustable limit values
Resistance 2-pole AC 0.001W...300 kW
Noise voltage up to 50 V, noise frequency
Measurement of the earthing impedance of electricity pylons
UNILAP GEO X additionally offers:
Selective measurement of individual earth electrode
resistance in interlinked or parallel ground systems (i.e.
power pylons, grounding grids, lightning protection
systems) without influence from other grounds.
● Low resistance 2- and 4-pole 0.001 W...3 kW with automatic polarity
reversing and high short-circuit current as per IEC 61557-4
● Display illumination
● Serial interface (RS 232, optional)
● Option DOCU-PACK: memory, printer, interface
● PC-Software WINGEO as an option
●
UNILAP GEO X:
Technical Data
Display:
4-digit (2999), 7-segmentliquid crystal display, 18 mm high, with
fluorescent and active illumination (GEO X)
Working temperature: -10° C ... + 50° C
Operating temperature: 0° C ... + 35° C
Reference temperature: +18° C ... +28° C
Storage temperature: -30° C ...+60° C
Operating error:
refers to operating temperature range
Intrinsic error:
refers to reference temperature range
Climatic class:
JWG as per DIN 40040
Protective type:
IP 56 as per DIN 40050
Operating altitude:
max. 2000 m
Safety:
Safety class II ( ) as per IEC/EN 61010-1
Max. noise voltage:
24 V, thereon measurements are locked
Power supply:
6 x 1.5 V alkali-mangan batteries (IEC LR 6)
or 1.5 V zink-carbon-batteries (IEC R 6) or
1,2 V accus
Dimensions:
240 x 180 x 110 mm (L x W x H)
Weight:
approx. 1.5 kg incl. batteries
approx. 5.9 kg incl. 4 pcs. batteries and
accessories in carrying case
Warranty:
2 years
Calibration interval:
3 years, recomended
UNILAP GEO
Noise voltage (DC + AC) (UST)
Measuring method:
mean value rectification
measuring range display range resolution frequency range
1 ... 50 V
0.0 ... 50 V
Measuring rate:
Internal resistance:
Max. overload:
0.1 V
intrinsic error
DC/AC
±(5 % of MV + 5D)
45...400Hz sine
approx. 4 measurements/s
approx. 1.5 MW
Ueff = 250 V
measurement of period of noise voltage
measuring range display range
16...400 Hz
16.0...300...999
resolution
0.1...1Hz
v-range
Max. overload:
Current and voltage measurement with probe
20/48 V AC - switchable
250 mA
94/105/111/128 Hz manual or autom. (AFC)
switchable, 55 Hz for R*
Ueff = 250 V
switch position measuring range
RA
3pole
4pole
0.020W...300kW
resolution
intrinsic error
0.001...100W ±(2 % of MV + 2D) ±(5 % of MV + 5D)
Resistance (R~):
2-pole current and voltage measurement
20 V AC
250 mA AC
94/105/111/128 manual or autom. (AFC)
switch positon measuring range
RA 2pole
0.020W...300kW
Measuring time:
Max. noise voltage:
Max. overload:
resolution
intrinsic error
operating error
0.001...100W ±(2 % of MV + 2D) ±(5 % of MV + 5D)
typ. 6 sec.
24 V, above no measurements started
Ueff = 250 V
R* - earthing impedance with 55 Hz
For calculation of short circuit current in power distribution systems
2
1 ... 50 V
0.0 ... 50 V
Measuring rate:
Internal resistance:
Max. overload:
0.1 V
DC/AC
45...400Hz sine
intrinsic error
±(5% of MV + 5D)
approx. 4 measurements/s
approx. 1.5 MW
Ueff = 250 V
Interference frequency (FST)
Measuring method:
measurement of period of noise voltage
measuring range
display range
resolution
voltage range
operating error
16...400 Hz
16,0...300...999 Hz
0,1...1Hz
1V... 50 V
±(1 % of MV + 2D)
Earthing resistance RA (RE) as per IEC 61557-5:
Measuring method:
Measuring voltage:
Short circuit current:
Measuring frequency:
Max. overload:
current and voltage measurement with probe
20/48 V AC switchable
250 mA
94/105/111/128 Hz manual or autom. (AFC)
switchable, 55 Hz for R*
Ueff = 250 V
switch position measuring range resolution
RA
3pole
4pole
0.020W...300kW
intrinsic error
operating error
0.001...100W ±(2 % of MV + 2D) ±(5 % of MV + 5D)
automatic range selection
Measuring time:
typ. 8 sec. with fixed frequency chosen
max. 30 sec. with autom. freuency selection
Max. probe resistance: <1 MW
Max. auxiliary earth
electrode resistance:
<1 MW
Display shows warning RS resp. RH,
if ration RH/RE is too high
Max. noise voltage:
24 V, above no measurement is started
Noise voltage suppr.:
120dB (162/3 , 50, 60, 400 Hz)
switch position measuring range resolution
RA
3-pole
4-pole
0.020W...30kW
):
intrinsic error
operating error
0.001...10W ±(7 % of MV + 2D) ±(10 % of MV + 5D)
Transformer ratio:
80...1200 : 1,(adjustable)
Minimal current in single
branch to be measured: 0,5 mA with transformer 1000:1
0,05 mA with transformer 100:1
Intrinsic error:
operating error (RA) + error (clamp)
Other data see earthing resistance ( RA )
Resistance (R ... ) as per IEC 61557-4:
Measuring method:
operating error
Automatic range selection
Measuring time:
typ. 8 sec. with fixed frequency chosen
max. 30 sec. with autom. frequency selection
Max. probe resistance: <1 MW
Max. auxiliary earth res.: <1 MW
Display shows warning RS resp. RH,
if ratio RH/RE is too high
Max. noise voltage:
24 V, above no measurement is started
Noise voltage suppr.:
120dB (162/3 , 50, 60, 400 Hz)
Measuring method:
Measuring voltage:
Short circuit current:
Measuring frequency:
mean value rectification
measuring range display range resolution frequency range
operating error
1V... 50 V ±(1 % of MV + 2D)
Earthing resistance RA (RE) as per IEC 61557-5:
Measuring method:
Measuring voltage:
Short circuit current:
Measuring frequency:
Measuring method:
Selective earthing resistance (RA
with supplementary current transformer
Interference frequency (FST)
Measuring method:
Noise voltage (DC + AC) (UST)
Open-circuit voltage:
Short circuit voltage:
current and voltage measurements 2-pole and
4-pole method possible
20 V DC
250 mA DC
switch position measuring range resolution
RA ...
2-pole
4-pole
0.020W...3kW
Measuring time:
Max. noise voltage:
Max. inductivity:
Max. overload:
0.001...1W
intrinsic error
operating error
+(2 % of MV + 2D) +(5 % of MV + 5D)
approx. 4 sec. with reversing of polarity
<3 V AC/DC, above no measurement started
2 Henry
Ueff = 250 V
Resistance (R~)
Measuring method:
Measuring voltage:
Short circuit current:
Measuring frequency:
2-pole current and voltage measurement
20 V AC
250 mA AC
94/105/111/128 man./autom. (AFC) switchable
switch position measuring range resolution
RA
2-pole
0.020W...300kW
Measuring time:
Max. noise voltage:
Max. overload:
intrinsic error
operating error
0.001...100W +(2 % of MV+ 2D) +(5 % of MV + 5D)
typ. 6 sec.
24 V, above no measurement will be started
Ueff = 250 V
R* - earthing impedance with 55 Hz
For calculation of short circuit current in power distribution systems
Applications
Practical test measuring setup:
Principle of measurement:
G
UMeas
I
E
V
ES
I
S
4 pole
H
P1
ES
H/C2
E/C1 S/P2
UE
RE(A)
RS
RH
>20 m
>20 m
Probe
Earth
electrode
Earth resistance measurement at high voltage pylons:
3 pole- and 4 pole-measurements:
4 pole
4 pole
E/C1 S/P2
H/C2
E/C1
>20 m
>20 m
Earth
electrode
>20 m
Probe
Aux.
earth
electrode
Specific earth resistance according to Wenner:
E
Aux. earth
electrode
S/P2
H/C2
>20 m
Probe
Aux.
earth
electr.
Selective measurement at high voltage pylons:
H/C2
= 2 . a . RE
Probe
dist
50 Hz
60 Hz
16 2/3 Hz
S/P2
Aux. electr.
Meas
94 Hz
105 Hz
111 Hz
128 HZ
E/C1
>20 m
S/P2
H/C2
>20 m
ä
ä
>20 m
ES/P1
Stakeless measurement of earth loops:
.. .
H
S
M
black
red
Fundamental ground electrode
E
Voltage
U
Current
I
R
R1
R2
Rn-1
Rn
3
UNILAP GEO X + WIN GEO - the professional system for earth measurements
Functions WIN GEO:
4
RS232 Interface (option):
●
Data acquisition from UNILAP GEO X (support of all
measuring functions)
●
Data export of measured data (ASCII) to Windows®
applications (Winword®, Excel®, Access®)
●
Measurement protocols - the values are transfered
automatically (DDE) to forms of Windows® applications
Electrical data:
- voltage levels according to EIA RS 232C specifications
- parameters: 2400 Baud, 8 data bits, no parity, 1 stop bit
- half duplex
- lines: GND; TXD, RXD; RTS
- Test voltage: 3 kV AC
- nonvolatile memory for 48 characters of user defined text
(incl. control characters <CR>, <LF>)
●
Remote control of UNILAP GEO X - selection and initiation
of measuring functions, downloading measurement
values
Software
- setup/diagnose software on 31/2 inch disk, 1.44 MB,
for all PCs higher than DOS 3.3
●
SETUP - Setting of date/time, input of user defined text
●
DIAGNOSE - display/print settings of UNILAP GEO X
Order Codes
Order-No.
Description
Order-No.
UNILAP GEO Basic Set
UNILAP GEO
2 measuring leads 1.5 m long
2 alligator clips
1 carrying strap
6 batteries
Manual in English, German or French
delivered in carrying case
A 1885 06110
Carrying case
for UNILAP GEO / GEO X and accessories
A 6030 00520
UNILAP GEO
same as A 1885 06110 and additionally.
4 earth stakes
3 reels with 2x25m and 1x50m wire
A 1885 06111
UNILAP GEO X Basic Set
UNILAP GEO X
2 measuring leads 1.5 m long
2 crocodile clips
1 carrying strap
6 batteries
Manual in English, German or French
delivered in carrying case
A 1885 06210
UNILAP GEO X with GEO measuring set 4pole
same as A 1885 06210 and additionally:
4 earth stakes
3 reels with 2x25m and 1x50m wire
A 1885 06211
Description
UNILAP GEO X with interface and
GEO measuring set 4pole
same as A 1885 06211 additionally:
1 interface RS232
1 Set-up Software
1 RS232 cable and PC adapter
UNILAP GEO X + DOCU-PACK +
GEO measuring set 4pole
same as A 1885 06211 additionally:
1 DOCU-PACK
1 Set-up Software
1 RS232 cable and PC adapter
2 paper rolls
PC-software WINGEO for UNILAP GEO X
A 6899 00172
Windows software for setup of UNILAP GEO X,
diagnosis, data acquisition, protocol generation,
operating instructions, 3 1/2 “ disk
Current transformer 1000A, opening up to
54 mm, for selective earth resistance
measurements
A 6805 01010
Current transformer 100A, opening up to 12 mm, A 6805 01007
for selective earth resistance measurements
A 1885 06212
A 1885 06215
Adapter for stakeless earth measurements
(2 clamps necessary)
A 6403 06311
Split-core current transformer
for measurements on high voltage pylons
up to 310 mm
A 6805 06211
Accumulator set 1500 mAh
1,5 Ah NiCd-Accu, electronics, mains adapter
A 6403 04111
Accumulator set 600 mAh
0,6 Ah NiCd-Accu, electronics, mains adapter,
cable for 12 V car system, manual.
Versions GB for UK, US for USA
A 6403 06211
Earth stake 35 cm
A 6045 10350
Reel with 25 m cable
A 6045 05102
Reel with 50 m cable
A 6045 05103
3 alligator clips
A 6009 17103
3 test tips
A 6009 54300
DOCU-PACK for GEO X
RS232 interface, memory and printer.
Incl. 2 paper rolls, 1 RS232 cable,
setup/diagnosis software, mounting panels,
modified battery cover and manual
A 6412 06111
Interface RS 232 for GEO X
A 6412 06211
for data transfer to printer or PC
incl. 3 1/2“ disk with setup + diagnose software,
cable for PC, manual
Accessories
GEO-measuring set 3-pole
2 earth stakes, 1 reel with 25m wire
1 reel with 50m wire
A 6045 10302
measuring set 4-pole
4 earth stakes, 2 reels with 25m wire,
1 reel with 50m wire
A 6045 10301
GEO-Clamp set “selective”
for selective measurements
1 clamp 100A, 1 connector clamp cable
A 6045 10305
GEO-Clamp set “stakeless”
for stakeless earth resistance measurements
1 clamp 100A, 1 clamp 1000A
1 clamp connector cable
1 adapter for stakeless measurements
1 manual
A 6045 10306
Thermoprinter DPU 201 for SATURN GEO X
with interface, data printing via RS232
A 6413 06111
Paper for printer DPU 201
A 6202 46111
Adapter RS232-CENTRONICS
adapter, cable for direct printing from RS232
interface on CENTRONICS printers
A 6045 00610
5
Distributor
Printed in Austria.
Technical modifications reserved.
Publication A 99 000525
LEM NORMA GmbH
Export department
Palmersstrasse 2
A-2351 WIENER NEUDORF
TEL:
+43(0)2236 691 0
FAX:
+43(0)2236 63 080
E-mail: lno@lem.com
BELGIUM & LUXEMBURG
LEM Belgium sprl-bvba
Route de Petit-Roeulx, 95
B-7090 BRAINE-LE-COMTE
TEL: +32(0)67 55 01 14
FAX: +32(0)67 55 01 15
E-mail: lbe@lem.com
GREAT BRITAIN & IRELAND
LEM UK LTD
Geneva Court
1 Penketh Place
West Pimbo
Skelmersdale, Lancashire WN8 9QX
TEL:
+44(0)1 695 72 07 77
FAX:
+44(0)1 695 50 704
E-mail: luk@lem.com
NAFTA
LEM Instruments Inc.
23822 Hawthorne Boulevard #100
US-TORRANCE, CA 90505
TEL: +1 310 373 09 66
FAX: +1 310 373 90 56
E-mail: liu@lem.com
NETHERLANDS
LEM Nederland B.V.
Rijzendeweg 5
NL-4634 TV WOENSDRECHT
TEL: +31(0)16 46 154 62
FAX: +31(0)16 46 166 06
E-mail: lne@lem.com