• Testing RCD breakers of AC, A, B types
  • Testing of general, short delay and selective RCDs for the rated current values 10, 15, 30, 100, 300, 500 mA
  • Measurement of I_A trip current and tripping time t_A for currents 0.5 I_Δn, 1 I_Δn, 2 I_Δn, 5 I_Δn
  • R_E and U_B measurement without RCD tripping
  • Extended AUTO function of RCD measurement, with the possibility of measuring Z_L-PE with low current
  • Measurement of I_A and t_A during one RCD tripping

• Checking the correctness of PE connection using a contact electrode
• Measurement of voltage (0 … 500 V) and network frequency
• Memory of 990 results
• Wireless data transmission to a computer
• Backlit keypad

The meter enables the user to measure the parameters of residual-current devices (RCDs), such as time or operating current. The device is useful for testing electrical systems with circuits protected by RCDs of AC, A and B type.

The meter will cope well in difficult environmental conditions. Protection against penetration of dust and water is ensured by a unique housing with a level of protection IP67.

You can easily transfer measurement data to your computer via wireless communication. In order to generate a report on measurements for electric shock protection, use Sonel Reports PLUS software. Saving the downloaded data to the simplest formats and printing is provided by free Sonel Reader software

Voltage measurement

⇒ Abbreviation "m.v." used in the specification of measurement uncertainty means a standard measured value.

Frequency measurement