12
3. Putting into operation
3.1 General information
The DSP HS11
does not
switch on automatically. For voltage tests of the self-test must be performed (see 3.3)
first.
Switch-off:
Press button until „oFF“ is indicated. When no voltage is applied, the device switches off auto-
matically after 90 s. The display illumination switches off after approximately 5 s when no voltage is applied.
3.2 Battery
Your instrument is already supplied with a 9 V block battery in accordance with IEC 6LR61 / 6LF22 / 6LP3146.
The battery status is indicated by a battery symbol on the display (see section 5).
You need to change the battery of the device before continuing with testing when the empty battery symbol
on the display flashes.
3.3 Testing correct display and function (self-test)
In accordance with EN 50110-1 (VDE 0105-1) voltage testers must be checked if they function correctly,
briefly before and whenever possible after the use, for determining absence of voltage.
Step 1 – Test of 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 changes between red and white and the 2 LEDs lights up and an acoustic signal
occurs. Release button „TEST“ is indicated on the display.
Step 2 – Check test circuit and protective resistors
Hold the test electrodes together for about 5 seconds until „Rdy“ appears and the green LED lights up, then the
MultiSafe DSP HS11 is ready for operation.
Note!
In case the function test has not been successful, check the following:
Test electrodes short-circuited? Test electrode screwed tightly? Battery empty?
Repeat the function test: Switch on the device and hold the test electrodes together (short-circuit).
Attention!
If one of the displays fails during the self-test – even if only partial failure occurs – or if the instrument does not
indicate a function standby, the voltage tester may not be placed into operation!
4. Measuring and testing
4.1 Testing voltage
Attention!
The function test (see 3.3) has to be performed successfully. Connect both test electrodes securely with the
test points.
The following indication appears:
No voltage:
Voltage >50 V AC/120 V DC:
Green LED lights up
Red LED lights up
Display illumination white or off
Display illumination red
Display 000V
Indication value for voltage level and
frequency and
symbol appears on the
illuminated display, acoustic signal appears
Attention!
With voltage of more than 11 kV AC / 16 kV DC „OL“ without numerical value appears and an acoustic signal
accurs. In this case the test must be canceled immediately!
Display illumination white, off after 5 s
Display illumination red
