Metrix MX 56C - Technical Specifications; DC Voltages; AC Voltages (AC and AC+DC)

Chapter II
Portable digital multimeter
31
5. TECHNICAL SPECIFICATIONS
Only those values assigned tolerances or limits are guaranteed values. Values without
tolerances are given for information only (French standard NF C 42-670).
{Accuracy : ‘’n% R + nD’’ means ‘’n% of the reading + n digits’’ as per IEC 485}
5.1. DC voltages
Selector
switch position
Ranges Accuracy
Input
impedance
Protection Resolution
mV 500 mV 0.025%R** + 2D 10 MΩ/1GΩ* ± 1100 V
PK
*** 10 µV
5 V 0.025%R** + 2D 11 MΩ ± 1100 V
PK
100 µV
V
DC
50 V 0.025%R** + 2D 10 MΩ ± 1100 V
PK
1 mV
500 V 0.025%R** + 2D 10 MΩ ± 1100 V
PK
10 mV
1000 V 0.025%R** + 2D 10 MΩ ± 1100 V
PK
100 mV
* Refer to § 3.4. ** at 23°C ± 2°C *** 1mn max
Number of points : 50 000 (or 5 000 - refer to § 3.4.)
Range selection : automatic or manual for the 5 V, 50 V, 500 V, 1000 V ranges
Common mode rejection : at 50 and 60 Hz, better than 120 dB
Serial mode rejection : at 50 and 60 Hz, better than 60 dB
Additional error in Pk +/- mode for a pulse of ≥ 1 ms : 1% R ± 50 D
For measurements performed on alternative signals, the selected range must tally with the
max. value of the signal peak.
5.2. AC voltages (AC and AC+DC)
Selector
switch
position
Ranges
Accuracy
Input
impedance
Protection Reso-
lution
DC* 40 Hz
to 1 kHz
1 kHz to
4 kHz
4 kHz to
10 kHz
10 kHz to
30 kHz
30 kHz to
50 kHz
from 5 % to 100 % of the range from 10 % to 100 % of the range
mV +
SEL/ON
500 mV* 7 % R
+ 30 D /////////////
10
MΩ/1GΩ **
// 100 pF
±1100V
P
K
***
10 µV
5 V 11 MΩ
// 100 pF
± 1100
V
PK
100
µV
V
AC
or 50 V 0.3% R + 30 D 1 % R
+ 30 D
2 % R + 30 D 3 % R
+ 30 D
10 MΩ
// 100 pF
± 1100
V
PK
1 mV
V
DC
+ 500 V 10 MΩ
// 100 pF
± 1100
V
PK
10 mV
SEL/ON 750 V /////////// ///////////// ///////////// ///////////// 10 MΩ
// 100 pF
± 1100
V
PK
100
mV
* AC+DC only *** 1 mn max ** Refer to § 3.4.
Number of points : 50 000 (or 5 000 - refer to § 3.4.)
Range selection : automatic or manual for the 5 V, 50 V, 500 V, 750 V ranges
Common mode rejection : at 50 and 60 Hz, better than 80 dB
Additional error according to crest factor :
0.2 % for a crest factor of 2 to 3
0.5 % for a crest factor of 3 to 6
(Specification given full scale for a squarewave signal pulse 200 µs wide)