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testo 755 · Current/voltage tester

Instruction manual

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Содержание 755-1

Страница 1: ...testo 755 Current voltage tester Instruction manual ...

Страница 2: ...ng measuring point illumination on off 9 7 3 Switching the instrument off 9 8 Carrying out a test 9 8 1 Preparing the test 9 8 2 Voltage testing 10 8 3 Single pole phase testing only testo 755 2 10 8 4 Current measurement 10 8 5 Continuity resistance testing 10 8 6 Rotating magnetic field direction detection only testo 755 2 11 9 Service and maintenance 11 9 1 Replacing the batteries 11 9 2 Mainte...

Страница 3: ...ranteed The fork meter must not be used while its battery compartment is open Batteries must be checked before use and changed if necessary If there is any battery leakage the instrument must no longer be used until it has been checked by our Customer Service The battery acid electrolyte is highly alkaline and electrically conductive Risk of acid burn If the battery acid comes into contact with yo...

Страница 4: ...tage type directly or indirectly 4 Intended use The instrument may only be used under the conditions and for the purpose for which it was designed Current measurement voltage testing in the AC DC range of 6 to 600 V testo 755 1 or 6 to 1000 V testo 755 2 continuity testing resistance testing Only use the instrument within the specified measuring ranges of the following overvoltage categories Volta...

Страница 5: ...l load Approx 3 5 W at 1000 V Current Is 3 5 mA at 1000 V Operating time 30 s Recovery time 240 s Automatic power on 6 V Reading memory HOLD testo 755 1 6 600 V AC DC testo 755 2 6 1000 V AC DC Overload indicator testo 755 1 630 V AC DC LC display shows OL testo 755 2 1050 V AC DC LC display shows OL Measurement category CAT III 1000 V CAT IV 600 V Single pole phase testing only testo 755 2 Featur...

Страница 6: ...30 Ω to 100 kΩ Tolerances 1 of the display value 5 digits Test current 5 μA Overvoltage protection 1000 V AC DC Automatic power on 100 kΩ General technical data Feature Values Operating ambient temperature 10 C to 50 C Storage ambient temperature 15 C to 60 C Humidity Max 75 RH Operating altitude Up to 2000 m Level of contamination 2 Protection class IP 64 Power supply 2 x 1 5 V AAA IEC LR03 Power...

Страница 7: ...w voltage exceeded Single pole phase testing 5 LC display Display Meaning AC AC voltage is applied DC DC voltage is applied HOLD Reading is recorded V Voltage in V A Current in A Safety extra low voltage exceeded 50 V AC 120 V DC Single pole phase testing only testo 755 2 phase detected Ω kΩ Resistance in ohms or kilo ohms Continuity Rotating magnetic field direction left or right ...

Страница 8: ...sockets for probe tips 6 2 Explanation of icons Icon Meaning Attention Warning about a danger spot refer to instruction manual Caution Dangerous voltage risk of electric shock Continuous double or reinforced insulation in accordance with category II DIN EN 61140 Suitable for work on live parts Conformity mark verifies compliance with the valid EU Directives EMC Directive 2014 30 EU with the EN 613...

Страница 9: ...hat the instrument is functioning perfectly for example at a known voltage source before and after every test If the safety of the user cannot be guaranteed the instrument must be switched off and secured to prevent unintentional usage Carrying out a function test Press HOLD for approx 2 s Instrument carries out a self test All segments of the LC display and the alarm along with the measuring poin...

Страница 10: ...tive equipment or other insulators Single pole phase testing is not suitable for testing for absence of voltage Two pole voltage testing is required for this Connect a probe tip of the voltage tester to the test object is illuminated to signify phase testing on the relevant conductor 8 4 Current measurement Strong interferences in the vicinity result in an unstable display and measurement errors N...

Страница 11: ...LC display 1 Fully disconnect the instrument from the measurement object 2 Using a screwdriver unscrew the two metal screws on the battery compartment until the battery compartment cover can be removed Do not unscrew the screws completely 3 Remove the spent batteries 4 Insert new batteries type AAA IEC LR03 1 5 V ensuring correct polarity 5 Put the battery compartment cover back on and screw down ...

Страница 12: ... used until it has completely dried 10 Protecting the environment Dispose of faulty rechargeable batteries spent batteries in accordance with the valid legal specifications At the end of its useful life send the product to the separate collection for electric and electronic devices observe local regulations or return the product to Testo for disposal ...

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