3B SCIENTIFIC PHYSICS 1017895 User Manual Download

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4

4. Control elements

4.1 Front

1

Display

2

Slotted screw for zero calibration

3

Toggle switch 1
Zero point centre / left

4

Calibration trimmer for setting
centre zero point

5

Rotary switch to select the mea-
surement range

6

Ground socket

7

Current measurement socket for
up to 3 A

8

Current measurement socket for
up to 10 A

9

Voltage measurement socket

10 Toggle switch 2

AC / DC voltage measurements

11 Power switch

4.2 Rear

12 Cover plate for battery and

fuses

13 Rating plate

14 Fuse diagram

15 Lower edge

16 Feet

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Summary of Contents for 1017895

Page 1: ... and au tho rised for making measurements in circuits directly connected to the low voltage mains via plugs CAT II i e for measurements on house hold appliances for example The current measuring ranges are resistant to long term overloading up to 10 A Generous protection of all the current ranges by means of semiconductor circuit break ers prevents the fuse blowing unintentionally in many cases Sw...

Page 2: ...ges may arise due to superimposition of components The authorised measuring range is not to be exceeded If measurements are made when the magnitude of the variable is unknown al ways select a large measuring range before shifting down to lower ones Make very sure that the voltage value be tween the measured contact and earth or be tween the ground socket and the measure ment socket does not exceed...

Page 3: ...termined by forming various quotients involving simultaneous meas urements of current and voltage R U I below 1 mΩ above 10 MΩ S I U below 1 µS above 30 S Z U I below 1 mΩ above 10 MΩ 40 Hz 40 kHz Y I U below 1 µS above 30 S 40 Hz 40 kHz Overload protection Voltage ranges 600 V long term in all voltage ranges Current ranges 10 A of long term load ing in 3 A and 10 A ranges Electrical safety Safety...

Page 4: ...tre zero point 5 Rotary switch to select the mea surement range 6 Ground socket 7 Current measurement socket for up to 3 A 8 Current measurement socket for up to 10 A 9 Voltage measurement socket 10 Toggle switch 2 AC DC voltage measurements 11 Power switch 4 2 Rear 12 Cover plate for battery and fuses 13 Rating plate 14 Fuse diagram 15 Lower edge 16 Feet ...

Page 5: ...itch to If the battery is sufficiently charged the needle will point to the following range indication If this is not the case the battery will need to be replaced immediately 7 3 Zero point calibration Turn on the demo multimeter Turn the rotary switch to 600 V Connect the common ground socket and the voltage measurement socket together by means of a short connecting lead Turn the zero point trim...

Page 6: ...n set the toggle switch 1 to Select the required current measuring range to a range measured in mA or A 8 2 AC currents up to 3 A Set the toggle switch 2 to Select the required current measuring range to a range measured in mA or A 9 Current measurements up to 10 A The demo multimeter may NOT be used for direct measurements on a building s electrical wiring installation or directly at the source o...

Page 7: ...o Select the required measuring range to a range measured in V For measurements of voltage up to 100 mV set the rotary switch to the range 0 1 mA 100 mV 11 Measuring current and voltage together The demo multimeter may NOT be used for direct measurements on a building s electrical wiring installation or directly at the source of the mains voltage feed to the junction box See page 2 of Measurement ...

Page 8: ...e AA IEC LR6 Place the negative pole of the battery on the spring Close the cover again afterwards 12 3 Changing fuses Before opening the casing Turn off the demo multimeter Disconnect all measuring leads Remove the cover at the rear Check the fuses Blown fuses should be replaced with ones of the same rating Close the cover again afterwards 13 Cleaning For cleaning use a soft cloth slightly mois t...

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