30
Perturbation of the signal (Disturbance Level)
Use the
keys to set its value, from Low to High. The DH symbol is then displayed.
FIXED VOLTAGE
1000 V
Input voltage
Frequency
Input current
Date 2011.05.23
10 V AC
50.0 Hz
24.6 nA
Time 10:31
ALARM
BURN
500 V
2500 V
The RANGE symbol is displayed.
FIXED VOLTAGE
1000 V
Input voltage
Frequency
Input current
Date 2011.05.23
10 V AC
50.0 Hz
24.6 nA
Time 10:31
RANGE
BURN
500 V
2500 V
FIXED VOLTAGE
1000 V
Input voltage
Frequency
Input current
Date 2011.05.23
10 V AC
50.0 Hz
24.6 nA
Time 10:31
DH
500 V
2500 V
Setting to High is recommended when you make measurements in the presence of strong electromagnetic fields at the network
frequency (for example near high-voltage lines).
If the instrument detects an interfering AC voltage that is too high, it automatically switches to High, which places an analogue
filter on the inputs.
In the U-FIXED and U-VAR modes: the alarm threshold
Use the
keys to set the alarm threshold. The alarm threshold can also be set in SET-UP (see §5.5)
The ALARM symbol is displayed if the alarm is active.
In the U-RAMP mode: the programming of the ramp (Set Ramp Function).
Use the
keys to go to Set Ramp Function; the instrument displays the voltage ramp values programming screen. This
programming can also be done in SET-UP (see §5.4).
