Metrix MTX 3292 - Page 51

Technical characteristics
100,000 cts digital multimeters 51
Technical characteristics of the MTX 3292, MTX 3293 (continued)
AC and AC+DC
TRMS currents
Range
Input
impedance
Resolution
Protection
Accuracy
45Hz to
1 kHz
1 to 20kHz
20 to
50kHz
1,000μA
170Ω
10nA
11A
20A<30s
0.5% L
±40 D
0.5% L + 0.25%
x [F(kHz) -1] L ±30 D
-
10mA
17Ω
0.1μA
0.3% L
±30 D
0.3% L + 0.1%
x [F(kHz) -1] L ±30 D
100mA
1.7Ω
1μA
0.3% L
±30 D
0.3% L+ 0.1%
x[F(kHz) -1] L ±30 D
1,000mA
0.17Ω
10μA
0.3% L
±30 D
0.3% L + 0.1%
x [F(kHz) -1] L ±30 D
-
10A
0.03Ω ()
100μA
0.4% L
±400 D
0.4% L + 0.15%
x [F(kHz) -1] L ±40 D
100A
()
1,000μA
2.5% L
±40 D
2.5% L + 0.15%
x [F(kHz) -1] L ±40 D
() with the fuse supplied with the device
() 100A range limited to 20A
In the presence of a DC component:
Additional error: (IDC/I measured)x(0.7% L + 70 D)
A max. overload of 20A is acceptable for 30 s max. with a pause of at least 5
min between measurements.
From 7A, the measurement is limited to an ambient temperature of 40°C and a
period of 1h30m, with a pause of at least 15 minutes between measurements.
AUTO PEAK mode always activated.
Detection of peaks of which the duration exceeds 250µs
mA and µA range:
Additional error 2% for a peak factor between 2.5 and 3
Additional error 15% for a peak factor between 3 and 4
10A range: Zero up to the peak factor of 2.5 at 100%
Specifications valid from 10% to 100% of the range for a sinusoidal current.
Protection 1000 VRMS by HBC ceramic fuse
Fuse 1,000V, 11A >18kA Cos  >0.9 (10x38mm)
Voltage drop:
In 1mA Voltage drop approx. 160mVRMS
In 10mA Voltage drop approx. 180mVRMS
In 100mA Voltage drop approx. 180mVRMS
In 1,000mA Voltage drop approx. 210mVRMS
In 10A Voltage drop approx. 300mVRMS
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