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3B SCIENTIFIC

3B SCIENTIFIC

3B SCIENTIFIC

3B SCIENTIFIC

3B SCIENTIFIC

® 

PHYSICS

PHYSICS

PHYSICS

PHYSICS

PHYSICS

U17450 

Analog Multimeter with Zero-point Center/Left

1

Rotary switch to select the
measurement range

2

 Rotary knob to set the

electrical zero-point in the
center of the scale

3

Safety connection sockets

4

 Slide switch to select the

operating mode

5

 Adjustment screw to set the

zero-point mechanically

6

 Nub to latch the housing

shut

3

2

1

4

5

6

Instruction Sheet

10/04 MC/ALF

Handheld meter for current and
voltage measurement.

 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 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
higher measurement range to a

Summary of Contents for U17450

Page 1: ...d 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 vol...

Page 2: ...ing coil movement which is not sensitive to external electromagnet ic fields The safety connection sock ets offer protection against acciden tal touch contact After approx 45 mins the battery is automatically switched off The power can be re established by turning off and on using the slide switch for the oper ating mode The robust plastic hous ing and the spring connected bear ing jewels of the m...

Page 3: ...n The needle must be lo cated in the OFF position when the multimeter is in a hori zontal position If necessary make the corresponding adjustments with the adjustment screw 5 Check the electrical zero point Set the slide switch 4 into the position Select the measurement range the needle must be set to zero point in the center of the scale otherwise correct using the rotary knob 2 Check the battery...

Page 4: ...ended 4 7 µF 630 V it is possi ble to isolate DC voltage compo nents in an amplifier output stage for example The resultant mea surement error is less than 0 2 at a measurement frequency of 50 Hz Proceed with the measurement as stated in point 3 4 Measurement of the DC voltage components is performed as de scribed under 3 3 To avoid overloading the set mea surement range must be greater than the i...

Page 5: ...ake a reading from the lower scale 3 6 3 Measuring AC current Set the slide switch 4 to the setting Use the rotary switch 1 to select the corresponding measurement range A Connect the multimeter and take a reading from the upper scale 4 Maintenance 4 1 Cleaning Only use a paintbrush or soft tow el to clean the multimeter If stat ic electrical charge builds up on the view window this can be elim in...

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