3B Sientific U17450 Instruction Sheet - Page 3

Browse online or download pdf Instruction Sheet for Multimeter 3B Sientific U17450. 3B Sientific U17450 5 pages. Analog multimeter with zero-point center/left

Print Page

Overload protection:

F3 fuse, 15 H/250 V in accordance

with DIN VDE 0820 Section 22/EN 60

127-2 as circuit protection in the

case of overload; movement protect-

ed by 2 antiparallel-connected di-

odes

Protection class:

IEC 1010-1/EN 61010-1/ VDE 0411-1

Overvoltage category: CAT III

Nominal voltage: 300 V

Degree of pollution: 2

Test voltage: 3.7 kV~

EMV: Electromagnetic compatibility

Jamming: EN 50081-1:1992

Interference

immunity: EN 50082-1:1992

Power supply: 1 x 9 V flat cell bat-

tery, IEC 6F22

Dimensions: 98 x 138 x 35 mm

Weight: approx. 0.3 kg

3. Operation

3.1 Readying for use

• Insert battery into the battery

compartment. To do this remove

the section of housing by pressing

in the nub (6), e.g. using a screw-

driver. Then insert the battery and

connected it to the battery clip.

Replace the housing section and

snap it into place.

• Check the mechanical zero-point.

The measuring instrument may

not be connected at this time. Set

the sliding switch (4) to the "0"

position. 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. To do this set

the slide switch (4) to "

then adjust the rotary switch (1)

to"

". If the needle does not de-

flect into the battery test zone des-

ignated "

" the battery must be

replaced.

3.2 General instructions

• When performing measurements

always set the rotary switch (1) to

the highest measurement range.

Then turn the switch to lower rang-

es until you obtain optimum nee-

dle deflection.

• When the power supply is inter-

rupted by the automatic battery

switch-off (after approx. 45 min.)

switch the slide switch (4) on and

off again.

• When the multimeter is not in use,

disconnect all measurement leads

from the meter, reset the rotary

switch (1) to the highest range, set

the slide switch (4) to the "0" set-

ting and, if necessary, remove the

battery.

3.3 DC voltage measurement

_ +

" , and