3B SCIENTIFIC PHYSICS AM51 Hoja de instrucciones - Página 2
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Before opening the housing all measure-
ment leads are disconnected from the de-
vice.
•
Do not dispose of the battery in the regular
household garbage. Follow the local regula-
tions.
1.1 Symbol legend
Hazard, read instruction sheet
Voltage
V
Current
A
Moving coil galvanometer
AC/DC quantities accuracy class 2,5
Use in horizontal position
DC quantities
AC quantities
CAT
Measuring category as per IEC EN
61010-1
Double insulated casing
CE
EU conformity mark
Earth symbol
┴
Ground symbol
Battery symbol
2. Description
Handheld meter used to measure current, volt-
age and resistance as well as gain levels or
attenuation e.g. in chains of quadripoles.
Passive analog multimeter with a rotary switch
for selecting the measurement ranges and a
scale with mirrored background for parallaxfree
readings. The device is extremely robust in
terms of load capacity and is equipped with ex-
cellent overload protection due to its two anti-
parallel diodes as well as moving coil move-
ment, which is not sensitive to external electro-
magnetic fields. The safety connection sockets
offer protection against accidental touch contact.
The robust plastic housing and the spring-
connected bearing jewels of the movement
guarantee protection against damage caused by
mechanical stress.
3. Technical data
Measurement ranges:
Voltage measurement:
Measurement range
100 mV
1 V
10 V
30 V
100 V
300 V
600 V
Measurement range
10 V
30 V
100 V
300 V
600 V
Current measurement:
Measurement range
50 µA
1 mA
10 mA
100 mA
1 A
Measurement range
3 mA
30 mA
300 mA
3 A
Widerstandsmessung:
Rotary
Measurement range
switch
and scale centre
Ω x 1
1 Ω...35 kΩ...5 kΩ
Ω x 10
10 Ω...350 kΩ...50
Ω x 100
100 Ω...3.5 kΩ...500
Accuracy::
Influencing variables and nominal operating
ranges:
Temperature 0 – 40° C:
± 2.5% / 10 K for 100 mV/50 µA DC
Frequency (30 Hz...1 kHz): ± 2.5%
2
DC
Internal resistance
2 kΩ
20 kΩ
200 kΩ
600 kΩ
2 MΩ
6 MΩ
12 MΩ
AC
Internal resistance
66.7 kΩ
200 kΩ
667 kΩ
2 MΩ
4 MΩ
DC
Voltage drop
100 mV
500 mV
500 mV
500 mV
590 mV
AC
Voltage drop
1.5 V
1.6 V
1.6 V
1.8 V
Max. meas.
current
45 mA
4.5 mA
kΩ
0.45 mA
kΩ
Class 2.5
± 1% / 10 K for DC
± 1.5% / 10 K for AC