Conducting testing of rated residual non-operating currents at
× 1/2 Range, measuring RCD trip time at × 1 and × 5 Ranges.
• Measurement of trip out current
Measuring trip out current by varying current automatically.
• Remote Test
Enabling a user to hold the Test Leads with his both hands
by locking the Test Button. Measurement will automatically
start when the main voltage is detected.
• Voltage Measurement
Carrying out a constant measurement of voltage in the
stand-by mode at each Range.
• Auto-detection of Contact voltage
Detecting the voltage to earth of Earth electrodes or
Protective conductors during RCD test - when applying
test currents - at measurement using EARTH in order to
prevent electrical shocks caused by the damaged earth.
Measurement will be ceased at AC50V or more.
• Dust- and Water-proof
Dust- and Water-proof construction
(designed to IEC 60529 IP54).
Facilitating working at dimly illuminated locations.
Measurement of RCD trip time - Measurement of trip out current
40% - 110% of lΔn
(goes up by 5%)
300ms × 15steps
Test Current at each step
IEC 61010-1 Pollution degree2 CAT III 300V / CAT II 400V
IEC 61557-1, 6
IEC 60529 (IP54)
1999 counts (3 1/2digits), Large LCD
Operating temperature & humidity range
0ºC - 40ºC, relative humidity 85% (no condensation)
Storage temperature & humidity range
-20ºC - 60ºC, relative humidity 85% (no condensation)
50MΩ or more / 1000V (between electrical circuit and enclosure)
(1)Automatically enters Sleep mode in 3 minutes after the last switch operation (current consumption 75µA). This function doesn't work at voltage measurements. To exit from the Sleep mode, set the Function switch to OFF position once, and re-set it to the Range at which a measurement to be conducted.
(2) Backlight turns off in 1 minute after it lights up.
DC 12V / Size AA battery R6 (SUM-3) × 8 pcs.
Approx. 965g (including batteries)
Possible number of Measurements
1200 times or more
(measure every 30 seconds at ×1/2 Range, lΔn=100mA)
7128A (Test leads)
7129A (Test lead with alligator clip)
8017 (Long pin) × 2
Cord case, 9121 (Shoulder strap), Instruction manual,
Size AA battery R6 (SUM-3) × 8pcs.
(*) Only the RCD type G (without trip out time-delay) can be tested at Auto Ramp Test,
type S (time-delay) cannot be tested.