Reference Conditions; Dc Voltage - Metrix MX 1 Notice De Fonctionnement

Reference conditions

• Temperature : 23°C ± 2K
Reference
conditions
•
Humidity :
• Position :
Ensure that the pointer is at zero before starting any measurements.
Zero adjustment: open the device. Mechanical zero adjustment is carried
out by turning the transparent cover on the back of the null meter.
Ensure that the switch is correctly positioned.
When an estimated measurement is unknown, place the switch at the
highest calibre, then gradually reduce it until the appropriate calibre is
achieved: the reading should preferably be in the upper 2/3 of the range.
Specifications
• Connect the leads to the multimeter (be careful of switch position, see

DC voltage

below) and connect to the circuit to be controlled.
•
When an estimated measurement is unknown, place the switch at the
highest calibre, then gradually reduce it until the appropriate calibre is
achieved.
• To obtain voltage in V, multiply the appropriate range value by the
reading coefficient indicated in the table.
V DC
Range
(indication)
Reading
coefficient
Internal
resistance
(2)
Accuracy (3)
Admissible
overload
(1) Inputs between "COM" and "A" terminals, the other calibres between "COM" and "V Ω" terminals.
(2) specific R: 20kΩ/V
(3) in % of end of range
(4) for 1 minute
(5) for 20 seconds
16
45% RH ± 5%
horizontal ± 2°
150mV 0.5V 1.5V 5V
(1)
15 (a) 50 (b) 15 (a) 50 (b) 15 (a)
x 10 x 0.01 x 0.1 x 0.1
3kΩ 10kΩ 30kΩ 100kΩ 300kΩ
440V (fus.) 320V (4) 500V
440V (5)
English
15V 50V 150V 500V 1500V
50 (b) 15 (a) 50 (b) 15 (a)
x 1 x 1 x 10 x 10 x 100
1MΩ 3MΩ 10MΩ 30MΩ
2%
1000V 1500V
Multimeter MX1