3B Scientific Analog Multimeter AM51 - Manual (Page 7)

7
higher measurement range to a
lower measurement range.
• Before using the device, check the
housing and the measurement
cables for any damage.
•
Do not conduct measurements in
a damp environment. Workplace,
hands, shoes and floor must be dry.
•
Before opening the housing all
measurement leads are discon-
nected from the device.
2. Description, technical data
Passive analog multimeter with a
rotary switch for selecting the mea-
surement ranges and a scale with
mirrored background for parallax-
free readings. The device is extreme-
ly robust in terms of load capacity
and is equipped with excellent over-
load protection due to its two anti-
parallel diodes as well as moving coil
movement, which is not sensitive to
external electromagnetic fields. The
safety connection sockets offer pro-
tection against accidental touch con-
tact. The robust plastic housing and
the spring-connected bearing jewels
of the movement guarantee protec-
tion against damage caused by me-
chanical stress.
Measurement ranges:
Voltage measurement:
DC
Meas. range Int. resistance
100 mV 2 k Ω
1 V 20 k
Ω
10 V 200 k Ω
30 V 600 k
Ω
100 V 2 M
Ω
300 V 6 M
Ω
600 V 12 M
Ω
AC
Meas. range Int. resistance
10 V 66,7 k Ω
30 V 200 k
Ω
100 V 667 k Ω
300 V 2 M
Ω
600 V 4 M
Ω
Current measurement:
DC
Meas. range Voltage drop
50 µA 100 mV
1 mA 500 mV
10 mA 500 mV
100 mA 500 mV
1 A 190 mV
AC
Meas. range Voltage drop
3 mA 1.5 V
30 mA 1.6 V
300 mA 1.6 V
3 A 1.8 V
Resistance measurement:
Max.
Rotary Meas. range meas.
switch and scale center current
Ω x 1 1 Ω ...35 k Ω ...5 k Ω 45 mA
Ω
x 10 10
Ω
...350 k
Ω
...50 k
Ω
4.5 mA
Ω x 100100 Ω ...3.5 k Ω ...500 k Ω 0.45 mA
Accuracy: Class 2,5
Influencing variables and nominal
operating ranges:
Temperature 0 – 40° C:
± 1% / 10 K for DC; ± 2.5% / 10 K
for 100 mV/50 µA DC; ± 1.5% / 10 K
for AC
Frequency (30 Hz...1 kHz): ± 2.5%
Reference conditions: