PCE-ET 3000 series electric earth resistance meter
Earth and ground resistance meter (resistance / voltage) 
for houses and buildings 

Earth resistance meter is used to measure lightning-arresters or ground connection lightning-arresters for all kind of buildings. Earth resistance meter possesses a hermetic case and fulfils all the VDE 0413 safety requirements for the technical service operators. Earth resistance meter is appropriate for measuring ground electrodes, lightning-arresters or little earth resistance systems as well as for measuring power resistance, conductive elements and coupling components.
Modern switching circuits reduce the influences of  both pressure and earth resistance of the surrounding earth electrodes. Calibration of the earth resistance meter with the adjoining control mechanism avoids the loss of precision at measuring.
Frequency control of 850 Hz avoids the influence of scattered currents of the net and its harmonic elements. Besides, this meter has a filter incorporated to delete distorted signs. Earth resistance meter is delivered with the factory calibration however it can also have ISO calibration certificate. You will find an overview of all the earth resistance meter at the following link.

Characteristics:

- 3 ½ positions LCD display (máx. 1999)

- High accuracy

- Battery indicator / of range superation

- Data Hold

- Safety: IEC-1010-1 y CAT III 300 V

- Very good quality

- Components: checking cables: 15 m of red
  cable, 10 m of yellow cable, 5 m of green
  cable, ground needles, batteries and user
  manual.

- Optional ISO calibration certificate.

  View or print user manual of the  PCE-ET 3000 series.

Removing the yellow protection case of the earth resistance meter (removing the case back) you will see the connection unit to connect the different cables: "E" for the black cable, "P" for the green cable and "C" for the red one with the needles of ground.
The connection collocation (depending on the kind of measurement (earth resistance or earth tension measurement) is indicated in the user manual (upper image) 

Measuring earth resistance.

Earth resistance meter is connected with the special ground components introduced on the earth by means of the checking cables. To make accurate measurements with this meter, ground has to be wet, if not ground will be wet. Ground components will be put in a straight line (place the black cable, then the green cable, the yellow one for one ground rod and finally the red cable for the second ground rod). Now everything is ready to connect the earth resistance meter to check the earth connection of your building. This can be also used inside a building to check that water connections with earth work properly. This meter has been developed according to IEC 1010-1 standard and fulfils all the  safety conditions for  control electronic mechanism (CAT III). Bellow, you will see some examples of earth resistance measurements (lightning-arresters) at the main door of PCE Instruments office in Freienohl. 

Technical specifications

Range

Resolution

Accuracy

Earth resistance

0 ... 19.99/ 0 ... 199/
y 0 ... 1,999 Ω

10/ 100 mΩ / 1 Ω

± 2% + 2 positions

 AC Stress

0 ... 200 V AC
50/60 Hz

± 3% + 2 positions

Weight

1.5 kg 

Here you will find an overview of all the measuring instruments available at PCE Instruments.

Contact:
PCE Instruments UK Limited
Unit 11 Southpoint Business Park
Ensign Way, Southampton
United Kingdom, SO31 4RF
Phone: +44(0) 23 809 870 30
Fax: +44(0) 23 809 870 39

Contact:
PCE Americas Inc.
1201 Jupiter Park Drive, Suite 8
Jupiter 33458 FL
USA
Phone: +1-410-387-7703
Fax: +1-410-387-7714