Owner manual

ManualsBrands3B Scientific ManualsHealth and hygieneAnalog Multimeter AM51

U17451 Analog Multimeter

1 Rotary switch to select

measurement range

2 Rotary knob to set full-scale

deflection for 0 Ω

3 Connection for voltage

measurement

4 Connection for current and

resistance measurement

5 Connection for ground

6 Adjustment screw for

mechanical zero-point

setting

7 Nub to latch the housing

shut

Instruction sheet

10/04 MC/ALF

Handheld meter used to measure

current, voltage and resistance as

well as gain levels or attenuation e.g.

in chains of quadripoles.

1. Safety instructions

• Before using the analog multime-

ter, make sure you read the oper-

ating instructions carefully and

that you comply with them com-

pletely.

• The safety of the multimeter and

the person operating it can only

be guaranteed if it is used in ac-

cordance with the instructions. Do

not operate or handle this unit

incorrectly or inappropriately.

• The device may only be used by

persons, who are aware of the haz-

ards of contact (for voltages over

30 V rms) and can undertake the

appropriate safety precautions.

This also includes the appearance

of unforeseen voltages e.g. in de-

fective units or charged capacitors.

• In the case of voltage and current

measurements the nominal volt-

age between the phase and neu-

tral conductor may not exceed 300

V according to CAT II (in circuits

that are directly connected to the

mains) and CAT III (in building wir-

ing installations) 300 V.

• The analog multimeter may not be

used for measurements in circuits

with corona discharge (high volt-

age).

• In measurements involving RF cir-

cuits special care must be taken

due to the existence of dangerous

hybrid voltages.

• The appropriate permissible mea-

surement range may not be ex-

ceeded. Always change from a

Summary of content (5 pages)

PAGE 1
U17451 Analog Multimeter Instruction sheet 10/04 MC/ALF 1 Rotary switch to select measurement range 5 2 Rotary knob to set full-scale 43 7 deflection for 0 Ω 3 Connection for voltage measurement 4 Connection for current and 2 1 6 resistance measurement 5 Connection for ground 6 Adjustment screw for mechanical zero-point setting 7 Nub to latch the housing shut Handheld meter used to measure current, voltage and resistance as well as gain levels or attenuation e.g. in chains of quadripoles.
PAGE 2
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 disconnected from the device. Meas. range 10 V 30 V 100 V 300 V 600 V AC Int. resistance 66,7 kΩ 200 kΩ 667 kΩ 2 MΩ 4 MΩ Current measurement: DC Meas.
PAGE 3
Ambient temperature: + 23° C Frequency:50...60 Hz Waveform: Sinusoidal Electrical safety: Safety stipulations: EN 61010-1 Overvoltage category: CAT III max. 300 V; CAT II max. 600 V Degree of pollution: 2 Overload protection: F3 fuse, 15 A/ 500 V (IEC127) Electromagnetic compatibility: Jamming: EN 500081-2 Interference immunity: EN 500082-2 Power supply: 1 x 1.5 V Batterie IEC R6 Dimensions: 98x138x35 mm Ground: approx. 0,25 kg the full scale deflection by turning the knob (2).
PAGE 4
• Connect the multimeter and take a reading from the V, A DC scale. • Using the rotary switch (1) select the corresponding measurement range “3 A,...,3 mA AC”. • Connect the multimeter and take a reading on the V, A, AC scale. 3.3.3 AC voltage up to 600 V ~ COM AΩ 3.5 Measuring resistance V + • Using the rotary switch (1) select the corresponding measurement range “600,...,10 V AC”. • Connect the multimeter and take a reading from the V, A AC scale. COM 3.4.
PAGE 5
4 Maintenance 3.6 Attenuation and gain measurement 4.1 Cleaning • Only use a paintbrush or soft towel to clean the multimeter. If static electrical charging occurs on the view window this can be eliminated using a damp rag or an antistatic agent. ~ COM AΩ V • In communications engineering the gain or attenuation of a signal is specified in decibels as the logarithm of the ratio between the measured voltage and a defined reference voltage.