DUTEST pro - Multimeter BENNING - Free user manual and instructions

USER MANUAL DUTEST pro BENNING

Attention!Magnetsmightaffectthecor- rect functioning of cardiac pacemakers andimplanteddefibrillators.Asauserof such medical devices, keep a sufficient distancetothemagnet. - During the tests, touch the device at the insulated test probes

only and do not touch the testing electrodes

- Check the device for correct functioning immedi- ately before and after using it (see chapter 3)! Do not use the device, if one or more indications are not working or if it does not seem to be ready for operation! - If it is assumed that safe operation is no longer possible, the device must be switched off immedi- ately. - Absolutely prevent the device from getting wet and avoid any water condensation at the device. Moreover, the device must be protected against contamination and damaging! - The device does not work with the battery being exhausted! - The device must be used within the stated nomi- nal voltage range and in electrical installations of up to 400 V AC/DC only! - The device must be used only in electric circuits of overvoltage category CAT III with max. 300 V for phase-to-earth measurements. For measure- ments within measuring category III, the protrud- ing conductive part of a testing electrode

the measuring line must not be longer than 4 mm. Before carrying out measurements within measur- ing category III, the enclosed attachable protective caps marked with CAT III must be pushed onto the testing electrodes

for user protection pur- poses. - Please observe that work on live parts and elec- trical components of all kinds is dangerous! Even low voltages of 30 V AC and 60 V DC may be dangerous to human life! - Do not operate the device with the battery com- partment being open. - The device is designed for being used by qualified electricians and under safe working conditions. - Do not dismantle the device! Attention! Immediately before use, make absolutely sure that the system part to be tested is free of voltage! For this pur- pose, use a two-pole voltage tester. Attention! The device is provided with a high-power LED torch. Do not look directly or indirectly via reflecting surfaces into the LED beam. An LED beam might cause irrepa- rable damage to your eyes. Symbols on the device: Symbol Meaning

Attention! Please observe documenta- tion! This symbol indicates that the informa- tion provided in the operating manual must be complied with in order to avoid risks. Direct and alternating voltage (DC/AC)

Earth (voltage to earth) This symbol shows the orientation of the batteries for inserting them with correct polarity. Warning! Potentially dangerous optical radiation! Do not look directly into the light beam! Danger to your retina! Attention! Magnets might affect the cor- rect functioning of cardiac pacemakers and implanted defibrillators. As a user of such medical devices, keep a sufficient distance to the magnet.

YellowLEDforcontinuitytestsuptoR≤100Ωto 200Ω

YellowLEDforcontinuitytestsuptoR≤1kΩ

YellowLEDforcontinuitytestsuptoR≤10kΩ

Red (+) LED of the external-voltage indication (lights up), + positive pole of the polarity indication (lights up), external conductor test (phase) and cable break detector (flashes)

Red (-) LED of the external-voltage indication (lights up), - negative pole of the polarity indication (lights up)

Testing electrodes with attachable protective caps

(+) test probe (red)

Measuring line High-power LED torch Push-button Catch of the battery compartment cover Battery compartment cover with magnet, belt clip and technical data Sensor of the cable break detector

- Check the device for correct functioning immedi- ately before and after using it! - Press and hold the push-button for approx. 5 seconds to check all LEDs, the LED torch and the buzzer for correct functioning. - Short-circuit the test probes

to test the internal measuring circuit, the measuring lines and the batteries. The buzzer must sound and the LEDs

for continuity test must light up. - Please replace the batteries as soon as the LEDs

are flashing during the continuity test. - Test the LEDs

of the external-voltage indication as well as the correct functioning of the single-pole external conductor test (phase)

with familiar voltage sources, e.g. with a 230 V socket. - Do not use the device, if not all functions are working properly!05/ 2018 DUTEST

- The continuity and diode test must be carried out on system parts which are free of voltage. If nec- essary, capacitors have to be discharged. - Apply the two test probes

to the system parts to be tested. - Incaseofcontinuity(resistancevalueR≤100Ω to 200 Ω),an acousticsignal isemitted andthe yellow LEDs

light up. - The resistance value can be roughly estimated by means of the LED step indicator

Resistance (R) ≤100Ω

LED10kΩ ● ● ● 3.●↓ - To determine the conducting direction of a diode, apply the black (-) test probe

to the cathode and the red (+) test probe

to the anode of the diode. The conducting direction has been deter- mined as soon as the yellow LEDs

light up (running light). - If a voltage is applied to the test point, the device warns the user of an external voltage applied by means of the red LEDs

lighting up. In this case, stop the test immediately and ensure the absence of voltage! Settingthebuzzervolume The buzzer volume can be set in four steps. Step 1 (low), step 2 (medium), step 3 (high) and step 4 (very high). In step 5, the buzzer is OFF and the LED torch is ON. To set the volume, short-circuit the test probes

and press and hold the push-button until the desired volume is set. The buzzer volume set remains stored until it is changed the next time.

to the system parts to be tested. - The LEDs

for external-voltage indica- tion detect DC ( ) and AC voltages () within a range from 6 to 400 V. - AC voltages () are displayed by the (+) LED

lighting up simultaneously. - DC voltages ( ) are displayed by the (+) LED

lighting up. The (+) LED

lights up, if the positive pole of the voltage source is applied to the red (+) test probe

and the neg- ative pole of the voltage source is applied to the black (-) test probe

Attention! The external-voltage indication does not replace a two-pole voltage tester for determining the absence of voltage. Additionalindicationforexternal-voltagedetection (two-pole) If the buzzer is switched on during the continuity test, a pulsating acoustic signal warns of an external vol- tage applied. If the buzzer is switched off during the continuity test, the LED torch will flash as soon as an external voltage is applied. The additional indica- tion (pulsating acoustic signal or flashing LED torch ) can be deactivated. For this, apply the two test probes

to a voltage source (6 V to 400 V) and press the push-button for approx. 1 second. To activate the additional indication (pulsating acoustic signal or flashing LED torch ), repeat this procedure.

to the system part to be tested. During the single-pole external conductor test (phase), make absolutely sure not to touch the bare testing electrode

of the other test probe and make sure that it remains contactless. - If the red LED

flashes, the external conductor (phase) of an AC voltage is applied to this system part. Additionalindicationforexternalconductortest If required, an additional indication (pulsating acoustic signal or flashing LED torch ) can be activated for the external conductor test. To activate the additional indication, connect the black (-) test probe

to the external conductor (phase) of a socket and press the push-button for approx. 1 second. To deactivate the additional indication, press the push-button once again. The additional indica- tion (pulsating acoustic signal or flashing LED torch ) depends on the buzzer volume set for the continu- ity test (see chapter 4). Note: The single-pole external conductor test (phase) can be carried out in an earthed mains from 230 V, 50 Hz / 60 Hz (phase to earth) on.

7. Cable break detector

- The cable break detector is intended for the non-contact localization of cable breaks on exposed live lines. - Pass the detector over a live line (e.g. a cable reel or a chain of lights) from the feeding point (phase) in direction of other end of the line. - As long as the line is not interrupted, the red LED

is flashing. - The point of the cable break has been localized as soon as the red LED

goes out. Additionalindicationforcablebreakdetector An additional indication (pulsating acoustic signal or flashing LED torch ) activated for the single-pole external conductor test (see chapter 6) is also activa- ted for the cable break detector. Note: The cable break detector can be used in earthed mains from 230 V, 50 Hz/ 60 Hz (phase to earth) on.

Warning! Potentiallydangerousopticalradiation! Do not look directly or indirectly via reflecting surfaces into the LED beam! Dangertoyourretina! - The device is provided with a high-power LED torch with can be switched on and off by press- ing the push-button . - It is switched off automatically after approx. 2 min- utes. Settingtheluminosity The luminosity of the LED torch can be set in four steps. Step 1 (25 %), step 2 (50 %), step 3 (75 %) and step 4 (100 %). To set the luminosity, press and hold the push-button until the desired luminosity is set. The highest step 4 (100 %) will be confirmed by means of an acoustic signal. The luminosity set remains stored until it is changed the next time.

9. Batteryreplacement

- Do not apply voltage to the device when the bat- tery compartment is open! - The battery compartment is located on the back of05/ 2018 DUTEST

the device. - Slightly press down the catch by means of a screwdriver and push off the battery compartment cover in downward direction at the same time. - Replace the exhausted batteries by three new ones of type AA (LR06). Make sure that the new batteries are inserted with correct polarity! - Push the battery compartment cover back onto the housing until the catch locks into place with an audible click. Note: The battery compartment cover is provided with an integrated magnet and a belt clip for attachment of the device.

- Built and tested according to: DIN EN 61010-1 and -031, IEC 61010-1 and -031, DIN EN 62471 - Protection against external voltages: max. 400 V, 50 Hz / 60 Hz - Measuring category: CAT III 300 V to earth - Continuity test: acoustically by means of buzzer for measuring resistancesR≤100Ωto200Ω visually by means of three LED steps: LED100ΩformeasuringresistancesR≤100Ω to200Ω LED1kΩformeasuringresistancesR≤1kΩ LED10kΩformeasuringresistancesR≤10kΩ - Range of tolerance: ± 20 % of the maximum value of the LED step

< 3.5 mA (400 V) - Polarity indication: from ± 6 V on - External conductor test (phase): U

≥230V,50Hz/60Hz - Contamination level: 2 - Protection category: IP 40 (DIN VDE 0470-1 IEC / EN 60529) 4 – first index: protection against access to dan- gerous parts and protection against solid impuri- ties of a diameter > 1.0 mm 0 – second index: no protection against water - Battery: 3 x 1.5 V batteries of type AA (LR06) - Weight: approx. 130 g - Measuring line with test handles: approx. 1,000 mm - Operating temperature range: - 15 °C to + 55 °C - Storage temperature range: - 15 °C to + 55 °C - Relative air humidity: 20 % to 80 % - Luminosity of the LED torch: step 1 (25 %), step 2 (50 %), step 3 (75 %), step 4 (100 %)

11. General maintenance

Clean the exterior of the device with a clean dry cloth. If there is contamination or deposits in the area of the battery or the battery housing, clean these areas as well by means of a dry cloth. If the device is stored for a longer period of time, remove the batteries from the device!

12. Environmental protection

At the end of product life, dispose of the unserviceable device as well as used batte- ries via appropriate collecting facilities provi- ded in your community.05/ 2018 DUTEST

), toista menet- tely.