Technical Specifications; General; Characteristics; Dc Voltages - Metrix MX 23 Notice De Fonctionnement

5.

TECHNICAL SPECIFICATIONS

5.1.

General

Only the values assigned tolerances or given limits are guaranteed values. Values
without tolerances are given for information only, without guarantee (standard NFC
42670). The measurement errors must be considered in an environment of reference
temperature (refer to § 5.2.10).
It is essential that all measuring instruments are regularly calibrated.
5.2.

Characteristics

Accuracy is ± [% reading (R) + number of digits (D)].
{Accuracy : ''n % R + n D'' means ''n % of the reading + n digits'' }

5.2.1. DC voltages

Selector switch
Ranges
position
ADP 500 mV
DC DC
5 V
DC
50 V
DC
V
DC
500 V
DC
(∗∗)
600 V
DC
(∗) Acceptance permanent max. voltage
(∗∗) The range can be exceeded by up to 1000 V
the 600 V range. This multimetre can not be used on power distribution networks with a nominal
voltage higher than 600 Vrms.
Number of points : 5000
Range selection : automatic or manual for the 5 V, 50 V, 500 V, 1000 V ranges
Common mode rejection (500 mV range) : at 50 and 60 Hz, better than 120 dB
Serial mode rejection : at 50 and 60 Hz, better than 60 dB, in manual mode
Intermittent signal sounds and « OL » on the display in case of range overpassing.

5.2.2. AC voltages (AC and AC+DC)

Selector switch
Ranges
position
5 V
AC+DC
50 V
AC+DC
V
LOW Z
500 V
AC+DC
600 V
AC+DC
ADP 500 mV
AC+DC AC+DC
5 V
AC+DC
50 V
AC+DC
V
AC+DC
500 V
AC+DC
(∗∗)
600 V
AC+DC
(∗) Acceptance permanent max. voltage
(∗∗) The range can be exceeded by up to 1000 V
the 600 V range. This multimetre can not be used on power distribution networks with a nominal
voltage higher than 600 Vrms.
Specifications applicable from 5 to 100% of range for a sinusoidal signal in band 40 Hz to 1 kHz.
Number of points : 5000
Range selection : automatic or manual for the 5 V, 50 V, 500 V, 600 V, 750 V ranges
Common mode rejection : at 50 and 60 Hz, better than 60 dB
26
Accuracy Input impedance
11 MΩ
11 MΩ
0.3 % R + 2 D
10 MΩ
or 750 Vrms with the same accuracy as with
DC
Accuracy Input
40 Hz to 1 kHz impedance
1.5 % R + 2 D 500 kΩ
1.5 % R + 3 D 11 MΩ // 100 pF
11 MΩ // 100 pF
1.5 % R + 2 D
10 MΩ // 100 pF
or 750 Vrms with the same accuracy as with
DC
Chapter II
Protection
Resolution
(∗)
600 V 0.1 mV
RMS DC
1 mV
DC
10 mV
DC
750 Vrms
± 1100 V
100 mV
DC
DC
1 V
DC
Protection
Resolution
(∗)
1 mV
AC
10 mV
AC
600 V
RMS
100 mV
AC
1 V
AC
600 V 0.1 mV
RMS AC+DC
1 mV
AC+DC
750 Vrms 10 mV
AC+DC
± 1100 V
DC 100 mV
AC+DC
1 V
AC+DC
Portable digital multimeters