General Catalogue Chemistry - BECO Internacional LTDA.

The Original:
Leybold Demo-Multimeter
Adjustable scales
531 900
Demo-multimeter
Electronic pointer instrument for current, voltage
and resistance. This device is equipped with a
patented automatic socket blocking system to
prevent unintentional switching of measurement
types. This instrument is ideal for demonstrations
thanks to the extremely large display scale
and the controls provided on both the front and
rear. Analog instrument with scale for monitoring
measured value and battery on rear of
device. Direct display of measured values on
seven switchable scales in 1 – 3 gradation;
including zero-point-middle scale. Large display
fields for type and range of measurement.
Moving-coil meter (core magnet) with built-in
battery-powered measurement amplifier and
effective overload protection in all measuring
ranges. Low amplifier power consumption and
automatic battery cut-out when left on for
longer periods (approx. 55 min.) without scale
change. Includes carrying handle, batteries
and hook for mounting the instrument in the
demonstration-experiment frame (> 301 300).
Measuring ranges:
1/3/10/30/100/300 mV AC/DC
1/3/10/30/100/300 V AC/DC
1/3/10 kV AC/DC
1/3/10/30/100/300 µA AC/DC
1/3/10/30/100/300 mA AC/DC
1/3/10/30 A AC/DC
Currents > 30 A to 300 A DC/200 A AC with
clip-on ammeter (> 531 901)
DC voltages up to 300 kV with high-voltage
probe (> 531 93)
± 10 µA/± 10 mA/± 10 A
± 10 mV/± 10 mV/± 10 kV
1/3/10/30/100/300 kΩ
Internal resistances:
100 kΩ for measuring function mV
10 MΩ for measuring function V
1 GΩ for measuring function kV, without probe
30 GΩ for measuring function kV, with probe
Voltage drops:
120 mV for measuring function µA, mA
200 mV for measuring function A
Accuracy: class 1.5
7 different scales: 1/3/10/30/100/300 division
1x scales: 105 scale divisions
3x scales: 66 scale divisions
Zero-point middle scale: 42 scale divisions
Length of scale arcs: 200 mm each
Numeral height: 25 mm
Overload capacity (sustained):
250 V in mV range (AC/DC)
600 V in V range (DC), 400 V in V range (AC)
15 kV in 10 kV range
20 A in range up to 300 mA (AC/DC)
30 A in 30 A range (AC/DC)
Power supply: 3 batteries 1.5 V type IEC R 20
or rechargeable battery 1.2 V IEC HR 20.
Automatic battery cut-out after 50...60 minutes
Battery life for Ni-MH rechargeables:
approx. 100 h
Dimensions: 34 cm x 39 cm x 23 cm
Weight: 5.1 kg
measuring equipment – electricity
531 901
Clip-on ammeter
Accessory for connection to
demo-multimeter > 531 900.
Measuring ranges:
I DC 0-30 A / 0-300 A; Uout max 3 V DC
I AC 0-20 A / 0-200 A; Uout max 2 V AC
Frequency: DC - 400 Hz (20 kHz)
Error: ± (1 % from mean + 0.03 A @ 20 A resp.
+ 0.3 A @ 200 A)
Working temperature 0 - 50 °C
Temperature sensitivity: 0.1 % / °C
531 93
High-voltage probe
High-voltage proof series resistor with insulted
handle for measuring nonharzardous DC voltages
from high-voltage sources normally used
in schools.
Measuring ranges: 30/100/300 kV DC
Internal resistance: 30 Ω
Accuracy: class 5
Output: 4-mm safety plug
Length of probe: approx. 32 cm
Length of cable: 2 m
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