Selection of the various protective conductor cross-sections is performed using the selecting
button MODE (7). After its pressing and holding for approximately 1 second are successively
elected various protective conductor cross-sections. Selection of different cross-sections is
signaled acoustically.
If the value of the voltage drop on the protection circuit for set protective conductor cross-
section exceeds permitted value by STN/ČSN 60 204-1 (see table), the device with an audible
alarm warns the illegal value of voltage.
Voltage value greater than the highest value of the measuring range, i.e. higher than 5,000 V
is indicated on the display by illumination of eights –8888.
Basic Technical Parameters
Supply Voltage: 230 V, 50 Hz
Measuring current: min. 10 A, AC
Input power: 70 –250 VA
Output Voltage: max. 6V, 50 Hz
Measuring time: app. 10 seconds
Resistance measuring range: 0,000 –1,999 Ω
The resolution when measuring resistance: 0,001 Ω
Resistance measuring accuracy: 1,5% + 4 digits
The measuring range of the voltage drop: 0,000 –5,000 V
The resolution at voltage drop: 0,001 V
Voltage drop measuring accuracy: 1,5% + 4 digits
Weight of the device: app. 1,2 kg
