Metrix MX 56C - Diode Threshold Voltage Measurement; dB Function; Resistive Power Function; Frequencies

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)