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3.3 Secure earthing
Secure the clamp against being pulled off! Use the safety rope for this.
The grounding clamp for the earth connection can be live during the test!
The risk of electric shock is prevented by the protective elements in the device.
3.4 Self-test
The self-test checks the function of the voltage warning device, the line and the ground connection.
If a display fails even partially during the self-test or if there is no display, the voltage warning
device must no longer be used!
In accordance with EN 50110-1 voltage testers must be checked if they function correctly, briefly before
and whenever possible after the use.
Step 1 - Test the display
The device must be switched off for the self-test. Press and hold
button . All display segments light up on the display, the
backlight switch between red and white. Additionally all LEDs
lights up as well as a buzzer sound can be heard.
Release the button
, „TEST“ is indicated on the display and the
function test is required.
Step 2 - Test the test circuit and protective resistors
Contact earth potential with the ball electrode.
When „Rdy“ is displayed and the green LEDs light up, the DSP-HW 2
is ready for use and the connection to earth has been checked.
Note:
If the function test was not successful, the following must be checked:
• Ball electrode and earth connection connected to earth potential?
• Battery empty?
• Switch device off and on again, repeat self-test!
