Aardcirduitimpedantietester catII600V

The Earth Loop Impedance Tester ELT-S has been engineered especially for measuring the phase rotation, earth loop resistance via neutral (N), earth loop impedance via phase (L) and net impedance of LV-installations, all according to the EN61557 regulation. The instrument is fully electronic and can perform line and loop impedance on single- or three phase systems. It is also possible to measure the loop resistance between neutral and earth without tripping the RCD’s.

The following tests can be performed by the ELT-S:

• Earth loop impedance.
• Earth loop resistance between neutral and earth.
• Prospective short circuit current (Ipsc).
• Net impedance between phase and neutral lines and between two phase lines on a three phase system.
• The condition of the protective earth potential (safe or dangerous).
• Voltage.
• Frequency three phase rotation field.

The ELT-S has an internal memory with 500-locations for storing the measured values. These stored values can easily be transferred to a PC (via the RS232 port) to be used in the software.

Technical Specifications

• Measurement range voltage measuring: 0 – 440 V AC.
• Measurement range frequency measuring: 25 – 199,9 / 200 - 500 Hz.
• Network impedance Phase-Zero/Phase-Phase/Phase-Earth: 0 … 1999 Ω.
• Potential short-circuit current Phase-Zero/Phase-Phase: 0.06 … 40k.
• Earthloop resistance: 0 – 199,9 Ω.
• Zero-Earth.
• Memory: 500 locations.
• Output: RS232, serial 4800 Baud.
• Over current category: CATII/ 600V CAT III/300V.
• Dimensions: 290 x 110 x 65 mm.
• Weight: ± 900 g.