Table of Contents
Advertisement
Technical specifications
Technical specifications (cont'd)
Peak measurement
Pk+
Pk-
MTX 3281B
MTX 3282B
MTX 3283B
SURV Function
(MIN, MAX, AVG)
Resistive power W
Power calculation
V x A
MTX 3282B
MTX 3283B
Duty ratio
DC+
DC-
MTX 3281B
MTX 3282B
MTX 3283B
Pulse counting
CNT+
CNT-
MTX 3282B
MTX 3283B
100,000-count graphical multimeters
Secondary values
Peak V
t > 250 µs
100 mV to 1000 V
Peak A t > 250 µs
1000 µA to 20 A
Specifications valid from 20 % of the range in A, 10 % of the range in V
The value of the peak factor results from calculation: (Pk+ - Pk-) / 2 x Vrms
Additional error for 250 µs < t < 500 µs: 3%
Measurement zero reset: by pressing the key
Accuracy and rate: id. specifications Volt and Ampere measurements
MTX 3281B, MTX 3282B, MTX 3283B
Display of measurement in relative power in relation to a resistance reference
(W REF) adjustable from 1 to 10,000 , factory-adjusted to 50 .
The function performed is:
Ranges
Resolution
Accuracy
Protection
In AC and AC+DC voltage measurement : this calculation is limited to 400 Hz
The current measurement is always performed in AC+DC.
Accuracy (typical) : V measurement accuracy + Peak A measurement accuracy
The connection on the COM input must be short and of large diameter, in order to
limit the voltage drop which influences Volt measurement.
Display of the measurement in % of a logic signal (TTL, CMOS...)
DC+ Duty ratio
DC- Duty ratio
Resolution
Minimum duration for
Maximum duration for T
Minimum duration for T
Nominal range
Sensitivity (10 V range)
Absolute error on the duty
ratio, expressed in absolute %
Additional absolute error
(slope at switching to zero)
Protection
Depending on triggering conditions of frequency meter.
Minimum pulse duration
Counting up to
Triggering threshold
This threshold is:
Counter reset to zero
For negative events, reverse the cables.
Peak ranges
Additional error
3%of R ± 50cts
4% of R ± 50cts
2
(measured voltage)
2
(measured current)
DC and AC
100 µW
2 x accuracy in VDC or VAC (in %)
1000 Vrms
=
= T -
0.01%
10 s
0.8 s
200 s
5 to 90% typical
> 30% of the Freq range < 1 kHz
> 50% of the Freq range > 1 kHz
0.05% + 0.0001 / T [t in s] Freq < 1 kHz
0.1% + 0.0005 / T [t in s] Freq > 1 kHz
0.1 x C/P
C = range in V or in A
(for range 1000 V, C = 5000)
P = slope in V/s, A/s
1000 Vrms
5 µs
99999
10 % of range except range 1000 V
positive in
by pressing the key
Protection
1000 Vrms
or 10 Arms
.
/ W REF (unit W)
W REF(unit W)
T
AC
, negative in
.
39
Advertisement
Table of Contents
