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 r 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 M
Ω
/1G
Ω
*
± 1100 V
PK
***
10 µV
5 V
0.025%R** + 2D
11 M
Ω
± 1100 V
PK
100 µV
V
DC
50 V
0.025%R** + 2D
10 M
Ω
± 1100 V
PK
1 mV
500 V
0.025%R** + 2D
10 M
Ω
± 1100 V
PK
10 mV
1000 V
0.025%R** + 2D
10 M
Ω
± 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
M
Ω
/1G
Ω
**
// 100 pF
±1100V
P
K
***
10 µV
5 V
11 M
Ω
// 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 M
Ω
// 100 pF
± 1100
V
PK
1 mV
V
DC
+
500 V
10 M
Ω
// 100 pF
± 1100
V
PK
10 mV
SEL/ON
750 V
///////////
/////////////
/////////////
/////////////
10 M
Ω
// 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)
