Metrix MTX 3281 User Manual

Technical specifications
34 100,000-count graphical multimeters
Technical specifications (cont’d)
Frequency
measurement
Main frequency (Hz)
MTX 3281
MTX 3282
MTX 3283
In this position, you measure the frequency of a voltage.
AC Signals
(∗) Freq [kHz] limited to: 15,000 / U applied [V]
U applied [V] limited to: 15,000 / Freq [kHz]
(∗∗) limited to 200 kHz
The measurement is performed by capacitive coupling.
Selection of the manual frequency range < 900 kHz (default) or > 900 kHz,
via a short pressing of the key opposite.
Selection of voltage range in manual mode possible, via a long pressing of the
key opposite.
Input resistance: ≈ 10 MΩ (Freq < 100 Hz)
Maximum permanent acceptable voltage: 1000 Vrms. See (∗).
Protection by varistors at the voltage input
Parallel
voltage or current
or frequency
(secondary
function)
MTX 3281
MTX 3282
MTX 3283
You measure the frequency and value of a voltage or a current.
(∗) Freq limited to [kHz]: 15,000 / U applied [V]
U applied [V] limited to [V]: 15,000 [V ∗ kHz] / Freq [kHz]
(∗∗) limited to 20 kHz MTX 3281 ; at 50 kHz MTX 3282, MTX 3283 for the
"Ampere" range
Measurement is performed by capacitive coupling
Input resistance: ≈ 10 MΩ (Freq < 100 Hz)
Protection by varistors at voltage input
Range Resolution Protection Accuracy
0.8 to 10 Hz 0.0001 Hz
10 to 100 Hz 0.001 Hz
100 to 1000 Hz 0.01 Hz
1000 Hz to 10 kHz 0.1 Hz
10 to 100 kHz 1 Hz
100 to 1000 kHz 10 Hz
1 MHz to 2 MHz 100 Hz
1450 Vpk 0.02 % ± 8D
Sensitivity (applicable on rectangular signals only)
Range
100 mV 1 V 10 V 100 V 1000 V
0.8 Hz to 10 Hz 15 % of range 25 % of range 15 % of range 15 % of range 15 % of range
10 Hz to 100 kHz 10 % of range 20 % of range 10 % of range 10 % of range
10 % of range (∗)
100 to 500 kHz
(∗∗)
20 % of range typ. 20 % of range
20 % of range (∗) 20 % of range (∗)
500 to 1000 kHz typ. 30 % of range
1 MHz to 2 MHz
-
-
typ. 50 % of range
- -
Range Accuracy Resolution Admissible overload
0.8 to 10 Hz 0.001 Hz
10 to 100 Hz 0.01 Hz
100 to 1000 Hz 0.1 Hz
1000 to 10 kHz 1 Hz
10 to 100 kHz 10 Hz
100 to 200 kHz
0.02 % + 8D
100 Hz
1450 Vdc
(1 min max.)
on 500 mV range
Sensitivity (applicable on rectangular signals only) Vrms
Range
100 mV 1 V
10 V to 1000 V (∗) 1000 µA to 20 A (∗∗)
0.8 Hz to 5 kHz 15 % of range 20 % of range 15 % of range 20 % of range
5 kHz to 50 kHz 10 % of range 20 % of range 10 % of range 20 % of range
50 kHz to 100 kHz 15 % of range 25 % of range 15 % of range
100 kHz to 200 kHz - 30 % of range 30 % of range
-

Metrix MTX 3281 Specifications

General

Resistance Measurement	Yes
Capacitance Measurement	Yes
Frequency Measurement	Yes
Continuity Test	Yes
Diode Test	Yes
Backlight	Yes
Data Hold	Yes
Min/Max Mode	Yes
Relative Mode	Yes
Type	Digital
Max Voltage	1000 V
Max Current	10 A
Current Range (AC)	600 μA to 10 A
Frequency Range	10Hz to 10MHz
Safety Rating	CAT III 600V