Metrix MX 59HD - Diode Threshold Voltage Measurement; Frequencies; Duty Cycle

Chapter II
34 Portable digital multimeter
5.7. Diode
threshold voltage measurement
Measurable voltages : 0 to 2 V
Measurement current : 1 mA typical
Resolution : 1 mV
Protection : 600 V
RMS, can be reset automatically
5.8. Frequencies
Selector switch setting : V
AC
, mV, V
DC
, mA, 10 A
Measurement range : 0.62 Hz to 500 kHz
Accuracy : 0.03 %
Protection : 600 V
RMS 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 counts
SENSITIVITY
Ranges 500 mV
5 V to 500 V
500 µA to 500 mA
600 V
10 A
0.62 Hz to 5 kHz∗
2 % of range 100 V
5 kHz to 50 kHz 5 % of range 250 V
50 kHz to 500 kHz ///////////// 10 % of range /////////////
2 A
∗ rectangular signal
Additional positive limit in DC : + 3 % of range, except in 600 V
DC
range (150 V additional)
and in 10 A
DC
(1.5 A additional)
5.9. Duty cycle %+, %-
θ
T
θ
T
% - =
θ
T
x 100
% + =
θ
T
x 100
Resolution :
0.01%
Minimum duration for θ or T - θ : 2 µs
Maximum duration for T : 0.8 s
Minimum duration for T : 100 µs
Absolute error on duty cycle as a % :
310
4
.
−
T
Sensitiv
ity : refer to sensitivity in frequency measurement mode
Absolute additional error on θ, due to the zero crossing slope : 0.1 x 0.1 x
C
P
with C :
V or A range (C = 5000 V for 600 V
DC
or 600 V
AC
ranges
and C = 50 A for 10 A ranges)
with P : slope in V/s or in A/s