产品名称：MRP-200 系列RCD测试仪

• Testing the RCD breakers of AC, A and B types.
  - testing of standard and selective RCDs for the rated current values I_Δn=10, 30, 100, 300 and 500 mA,
  - measurement of tripping current I_A  ,
  - measurement of disconnection time tA, for currents 1, 2, 5 x I_Δn,
  - the waveform of the test current selected by the user:
    a) sinusoidal (initial phase 0° or 180°),
    b) unidirectional pulsating (positive and negative),
    c) single-direction pulsating with the DC current offset (positive and negative),
    d) DC current (positive and negative),
  - ability to measure touch voltage U_B and earth resistance R_E,
  - measurement of the contact voltage (U_B) using an auxiliary lead connected to the reference earth,
  - select safe voltage value threshold at 25V and 50V and additionally at 12.5V for selective RCDs,
  - protection against exceeding the safe voltage setting during a measurement,
  
• Approximate short-circuit loop resistance RS and short-circuit current I_K measurements.
  
• AC voltmeter function in the range 0...250V.
  
• Rapid check of PE lead connection using a touch electrode.
  
• Memory to store up to 999 cels of measurement results with an ability to transfer the data to a PC.
  
• Backlit LCD.
  
• Meter meets the requirements of the standard EN 61557.

Electric security:
- type of insulation: double, according to  EN 61010-1 and IEC 61557
- measurement category: CAT III 300V acc. to EN 61010-1
- protection class acc. to EN 60529: IP40

Other technical data:
- power supply: alkaline batteries LR6 (AA) (2 pcs.)

Rated operational conditions:
- operating temperature: 0...+40°C
- voltage range for RCD testing: 187...250V
- rated mains frequency: 50Hz

RCD disconnection test and the response time measurement t_A 

accuracy of setting of the residual current: 0...+5%

RCD disconnecting current measurement for a sine AC test current (I_A)

• start of measurement from the positive or negative half sine period of the test current
• test current flow time - max. 3200ms

RCD disconnecting current measurement for unidirectional pulsed residual
current and unidirectional pulsed current with a 6mA DC offset (I_A)
 

• start of the measurement from the positive or negative half sine period of the test current

RCD response time measurement for the residual DC current (I_A)

Touch voltage measurement referred to the rated residual current (U_B)
Measurement range in accordance with IEC 61557: 10...50V
 

Earthing resistance measurement (R_E)

Measurement of the short circuit loop resistance (R_S)
Measurement range in accordance with IEC 61557: 1,1Ω...1,99kΩ

„m.v.” - measured value.