Metrix MX 230B Notice De Fonctionnement page 28

Decibelmeter Decibelmeter : Decibelmeter
Decibelmeter Decibelmeter
Compare V2 > V1
V2
Gain = dB V2 reading - dB V1 reading
V1
Not workable in the first third of the scale and in 1000 V AC range
Direct dB reading 0 to + 11 dB (3 V AC range)
(0 dB = 0.775 V
Add + 10 dB
+ 20 dB
+ 30 dB
+ 40 dB
3.3.5. mA AC Function 3.3.5. mA AC Function
3.3.5. mA AC Function 3.3.5. mA AC Function 3.3.5. mA AC Function
Leads plugged into :
- COM and mA V W (3 mA to 300 mA ranges)
- COM and 3 A (or 10 A) sockets (3 A or 10 A ranges)
Ranges Ranges
Ranges Ranges Ranges
3 mA
30 mA
300 mA
3 A
10 A
Nota Nota Nota : i f t h e p o i n t e r d o e s n o t e f f e c t :
Nota Nota
3 and 10 A ranges : check 10 A fuse
other ranges : check 0.4 A fuse
Warning Warning Warning Warning Warning : Do not overshoot the intensified red limit scale 0 - 10 A
> 3 A use leads with convenient wires
26
1 mW / 600 W )
i f
i f
i f
i f
Selector position Selector position
Selector position Selector position Selector position
3 mA AC
30 mA AC
300 mA AC
300 mA AC
300 mA AC
10 V AC range
30 V AC range
100 V AC range
300 V AC range
Red scale Red scale
Red scale Red scale Red scale
30
30
30
30
30
MX 230B
Unit/Factor Unit/Factor
Unit/Factor Unit/Factor Unit/Factor
mA : 10
mA x 1
mA x 10
A : 10
A x 1