Chapter II
Portable digital multimeter
34
5.7.
Diode threshold voltage measurement
Measurable voltages :
0 to 2 V
Measurement current :
1 mA ± 20 %
Resolution :
1 mV
Protection :
600 V
RMS
, can be reset automatically.
5.8. dB
function
Displays measured values in dBm relative to a resistance reference which can be adjusted
from 1 to 9999 ohms and backed up in non-volatile memory (factory-set to 600 ohms, refer
to adjustment procedure in § 4.6).
Resolution :
0.01 dB
Absolute error in dB :
0.09 x V
AC
relative error as a percent
Additional computation error :
± 0.01 dB
Measurement range :
10 mV
AC
to 750 V
AC
Protection :
± 1100 V
PK
5.9.
Resistive power function
Displays resistive power relative to a resistance reference which can be adjusted from 1 to
9999 ohms and backed up in non-volatile memory (factory-set to 600 ohms, refer to
adjustment procedure in § 4.6.).
Measured function is :
(measured voltage)
2
/ Rref
Resolution :
100 µW
Accuracy :
2 x V
AC
accuracy (%)
Measurement max. voltage :
750 V
AC + DC
Protection :
± 1100 V
PK
Display unit :
VA
5.10. Frequencies
Selector switch setting :
V
AC
, mV, V
DC
, mA, 10 A
Measurement range :
0.62 Hz to 500 kHz
Accuracy :
0.03 %
Protection :
1100 V
PK
in V
AC
, mV, V
DC
modes
600 V
RMS
(F1 + F2) in mA mode
600 V
RMS
(F2) in 10 A mode
Display :
50 000 points
SENSITIVITY
Range
500 mV
5 V to 500 V
500 µA to 500 mA
750 V
10 A
0.62 Hz to 5 kHz*
2% of range
100 V
2 A
5 kHz to 50 kHz
5% of range
250 V
50 kHz to 500 kHz
/////////////
10% of range
/////////////
* rectangular signal
Additional positive limit in DC : + 3 % of range, except in 1000 V
DC
range (150 V additional)
and in 10 A
DC
(1.5 A additional)
