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Technical characteristics of the MTX 3291
50
6,000- and 60,000-count digital multimeters
Technical characteristics of the MTX 3291
Accuracy:
“n%L + nD” means
“n% of the reading
+ n Digit”
(see CEI 485)
Only values with tolerances or limits are guaranteed values.
Values without tolerances are given for guidance (standard NFC42670).
The technical specifications are guaranteed only after 30 minutes of warming up. Except
as otherwise indicated, they are valid from 10% to 100% of the measurement range.
DC voltage
In the “DC” mode, you measure a direct voltage or the DC component of an AC voltage
(filter activated).
60mV range: Measuring a strong current or measuring a current for a long time may
cause a temperature rise of some components.
Protection: 1414 Vpk
Range
Specified
measurement range
Resolution
Intrinsic error
Input impedance
60mV
1)
0 to 60.000mV
0.001mV
0.5% L+35D
10.612M
Ω
600mV
0 to 600.00mV
0.01mV
0.5% L+25D
10.9M
Ω
6V
0 to 6.0000V
0.0001V
0.05% L+25D
10.9M
Ω
60V
0 to 60.000V
0.001V
10.082M
Ω
600V
0 to 600.00V
0.01V
10.008M
Ω
1000V
2)
0 to 1000.0V
0.1V
0.07% L+25D
10.008M
Ω
1) This range is accessible only with the Range key.
Input impedance: approx. 10.6M
Ω
// 50 pF
2) The display indicates "+OL" above +1050V and "-OL" below -1050V.
Secondary measurements and displays: MAX, MIN, AVG
AC and AC+DC
voltages
With this function, the user can measure the true RMS (TRMS) value of an AC voltage
with its DC component (no capacitive coupling) or without its DC component.
V
AC
RMS
60mV range: Measuring a strong current or measuring a current for a long time may
cause a temperature rise of some components.
Protection: 1414 Vpk
Range
Operating
range
Specified
measurem.
range
4)
Resolution Uncertainty (
±
)
Additional
uncertainty
F(Hz)
1)
Pass band
@ 1kHz
Input
impedance
//<50 pF
Peak
factor
60mV
2)
0 to
60.000mV
6.000 to
60.000mV
0.001mV
1.5% L
±
35D
45<F<65Hz
0.3% L typ.
at 100Hz
0.7% L typ.
at 150Hz
1.8% L typ.
at 300Hz
30% L typ.
≈
400Hz 10.612 M
Ω
3 to
50.0mV
600mV
0 to
600.00mV
60.00 to
600.00mV
0.01mV
1%
L
+ 0.25%x
[F(kHz)-1] L
± 30D
10Hz to
50kHz
(
≈
23%
@100kHz)
10.9 M
Ω
3 to
500.0mV
6V
0 to
6.0000V
0.6 to
6.0000V
0.0001V
0.5% L
+ 0.18%x
[F(kHz)-1] L
± 25D
10Hz to
100kHz
10.9 M
Ω
3 to
5.0V
60V
0 to
60.000V
6.000 to
60.000V
0.001V 10.082 M
Ω
3 to
50.0V
600V 0
to
600.00V
60.00 to
600.00V
0.01V 10.008
M
Ω
3 to
500.0V
1000V
3)
0 to
1000.0V
60 to
1000.0V
0.1V 10.008
M
Ω
1.42 to
1000.0V