Technical specifications
100,000-count graphical multimeters 35
Technical specifications (cont’d)
Resistance
measurement (Ω
ΩΩ
Ω)
MTX 3281
In this position, you measure the value of a resistance.
MTX 3282
MTX 3283
Automatic/manual range selection
"Active" protection via CTP thermistor
Measurement voltage: ca. 1.2 V
Maximum voltage developed on open circuit: 4 V typ
In range 50 M
Ω
, in order to avoid the influence of the network and to guarantee the
given specifications, it is advised to disconnect the multimeter from Wall Plug.
For measurements higher than 10 M
Ω
, a shielded cable is recommended.
For a 2 wire-link, use very short wires (< 25 cm) and twist them.
Continuity Mode ( )
MTX 3281
MTX 3282
MTX 3283
On this position, you can measure the value of a resistance up to 1000 Ω, with
steady audio indication at 2 kHz.
Detection threshold in continuity mode ≈ 120 Ω (response time ≈ 5 ms).
"Active" protection via CTP thermistor.
Maximum voltage on open circuit: 4 V max, 2 V typ.
Diode Test (
)
MTX 3281
MTX 3282
MTX 3283
Indication of junction voltage in the direction from 0 to 2.6 V in a single range
(10 V range)
Accuracy 2 % ± 30 D
Resolution 0.1 mV
Measuring current < 1 mA
Maximum voltage developed on open circuit 4 V max.
"Exceeded" indication in reverse direction
"Active" protection by CTP thermistor 1000 Vrms
Range
Accuracy
Measuring current
Resolution
Protection
Beeper 0.1% + 8D approx. 0.4 mA
100 mΩ
1000 Vrms
Range
Accuracy
Resolution
Protection
1000 Ω 10 mΩ
10 kΩ 100 mΩ
100 kΩ 1 Ω
1000 kΩ
0.1 % + 8D
10 Ω
10 MΩ
0.5 % + 8D
100 Ω
50 MΩ
2 % + 8D
1 kΩ
1000 Vrms
Range
Accuracy
Resolution
Protection
1 000 Ω
0.1 % + 8D
10 mΩ
10 kΩ 100 mΩ
100 kΩ 1 Ω
1000 kΩ
0.07 % + 8D
10 Ω
10 MΩ
0.5 % + 8D
100 Ω
50 MΩ
2 % + 8D
1 kΩ
1000 Vrms
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