home 66050-a Digital SMART Multimeter Instruction Manual

SMA SMART2
**Instruction manual

**

66050-a Digital SMART Multimeter

lighting
7| mA current input
8| COM common input
9| (non current) input
10| voltage sensor
11| LED light

WARNINGS

• Before use of the product, please read this instructions manual and keep it for future reference. The original document was prepared in Hungarian language. This appliance can be used by children aged 8 years or above and persons  with reduced physical, sensory or mental capabilities or lack of experience and knowledge, provided that they are supervised or have been given instructions concerning the use of the appliance and understand the hazards involved.  Children may not play with the appliance. Children may perform the cleaning or user maintenance of the appliance subject to supervision. After removal of the packaging, inspect the product for possible damage during shipment.
  Keep the packaging away from children if it contains plastic bags or other potentially hazardous items.

• Never use a damaged measuring lead or an instrument with a damaged casing. If the lead is damaged, it must only be replaced  with an original model.
  Always keep fingers positioned behind the finger guard ring of the measuring tip.

• When measuring, first connect the black lead ( GND (-) ) to the circuit to be measured, and then the red lead ( live ). When you finish the measurement, first remove the red lead from the circuit.

• Depending on the measurement, a stable reading may require a few seconds.

• Due to the sensitivity of the instrument, the display may already show data while the measuring leads are loose. This is not a defect, the true value is displayed after connection to the circuit.

• Special care must be taken when  working with live circuits.

• Incorrect use may result in risk of electric shock and fire. The measuring instrument may malfunction and cause damage to the connected device.

• The connections must be stable and free of short circuit.

• Make sure that no foreign objects are inserted through the openings!

• When out of use, turn off the appliance and disconnect it from the circuit.

• When routing the connecting cables, make sure that their insulation is not damaged.

• In case of a malfunction, immediately disconnect the appliance and contact a specialist.

• Do not use in humid, damp or explosive environments, in combination with flammable gases or other similar substances.

• Protect the device from dust, humidity, liquids, high temperatures, moisture, frost and shocks, as well as from direct heat and sunlight.

• Do not dismantle, modify the device, as it may cause fire, accidents or electric shock.

• With consideration to the presence of supply voltage, observe the general rules of contact protection.

• Do not touch the device or the connecting cable with wet hands.

• Improper use of connecting cables may cause electric shock, fire or accidents.

• If the connecting cable is damaged, turn off the power immediately.

• Do not place objects filled with liquids, such as a glass on the appliance.

• Do not place sources of open flame, such as candles on the device.

• The appliance is intended for use in a dry environment.

• This product is for general use, not for industrial or commercial purposes.

• Remove the protective film if there is one on the front side.

• After the useful life of the product, it is to be considered as hazardous waste. Dispose of the product according to local legislation.

• Incorrect installation or unprofessional use will void the product warranty.

• Due to continuous development, the technical specifications and design of this product may change without prior notice. The most recent instructions manual is available for download from the www.somogyi.hu website.

• However we regret such inconvenience, we do not take any responsibility for possible printing errors.

ATTENTION!

• NEVER CONNECT THE INSTRUMENT TO MORE THAN 600V DC OR 600V ACrms VOLTAGE OR MORE THAN 600mA AC/DC CURRENT.

• DO NOT CONNECT MORE THAN 600V DC OR 600V ACrms BETWEEN THE GROUNDING ( GND (-) ) AND ANY INPUT CONNECTION.

• ATTENTION! DANGER OF ELECTRIC SHOCK!
  THE MEASURING INSTRUMENT MAY MALFUNCTION!

• DO NOT TOUCH THE
  PROBE TIP! DO NOT PLACE YOUR FINGERS NEAR IT!

• LEAVE THE REMOVABLE INSULATING CAP ON THE END OF THE PROBE TIP!

• NEVER CONNECT A VOLTAGE SOURCE TO THE INSTRUMENT IN RESISTANCE, DIODE, TEAR TEST MODE!

• THE SERIAL CONNECTION OF MEASURING LEADS (E.G. WHEN MEASURING CURRENT) MUST ONLY BE PERFORMED IN A VOLTAGE-FREE CIRCUIT. ONLY THEN APPLY POWER TO THE CIRCUIT.

• THE GROUNDING ( GND (-) ) LEAD IS TO BE CONNECTED TO THE CIRCUIT FIRST, FOLLOWED BY THE ACTIVE (RED) LEAD. WHEN YOU FINISH THE MEASUREMENT, FIRST REMOVE THE ACTIVE WIRE.

• BEFORE MEASURING, CHECK THAT THE CORRECT SOCKETS AND, IN MANUAL MODE, THE QUANTITIES TO BE MEASURED ARE CORRECTLY SELECTED.

• ONLY SWITCH FUNCTION DURING MEASUREMENT AFTER THE MEASURING LEADS HAVE BEEN REMOVED FROM THE MEASURED CIRCUIT.

• BE CAREFUL WHEN WORKING WITH 60V DC OR MORE OR 30V AC TRUE RMS (42V AC PEAK). THIS LEVEL CAN GIVE AN ELECTRIC SHOCK.

• BE AWARE THAT CERTAIN EQUIPMENT OR COMPONENTS MAY EMIT DAMAGING VOLTAGE SURGES TO THE INSTRUMENT. FOR EXAMPLE: TV, SWITCHM MODE POWER SUPPLY, CAPACITOR…

• THIS PRODUCT IS INTENDED FOR USE BY PROFESSIONALS. SAFE USE ALSO REQUIRES KNOWLEDGE THAT CANNOT BE PRESENTED IN THIS MANUAL.

• THE DESIGN AND MANUFACTURING OF THE INSTRUMENT IS BASED ON INTERNATIONAL SAFETY REGULATIONS AND STANDARDS. IT IS IN ACCORDANCE WITH THE IEC 61010-1 STANDARD. IT IS DOUBLE  INSULATED. ONLY THE ORIGINAL MEASURING LEADS MAY BE USED.

CAT III 600V
CAT IV: measurements for low voltage power supplies E.g.: power meters, switchgear cabinets, primary surge protection devices
CAT III: measurements in buildings, premises E.g.: fixed equipment, distribution board, cabling, busbar, switches, overcurrent protecting box, etc.
CAT II: measurements in circuits that are directly connected to low-voltage circuits. E.g.: household articles, portable devices and similar equipment
CAT I: measurements in circuits that are directly not connect electric network

Caution: Risk of electric shock! Do not attempt to disassemble of modify the unit or its accessories. In case any part is damaged, immediately power off the unit and seek the assistance of a specialist.
THE PRODUCT IS NOT A TOY. KEEP OUT OF REACH OF CHILDREN.
THIS PRODUCT INCLUDES A BUTTON BATTERY. IT IS FORBIDDEN TO SWALLOW THE BATTERY, RISK OF CHEMICAL BURN. IN CASE OF INGESTION, IT MAY CAUSE STRONG INTERNAL BURN WITHIN 2 HOURS AND  MAY LEAD TO DEATH. KEEP THE NEW AND USED BATTERIES OUT OF REACH OF CHILDREN. IF THE COVER OF THE BATTERY COMPARTMENT CANNOT GET CLOSED SECURELY, DO NOT CONTINUE TO USE THE PRODUCT AND KEEP IT AWAY FROM CHILDREN. IF YOU THINK THAT A BATTERY HAS BEEN SWALLOWED OR GOT INTO ANY BODY PARTS, SEEK MEDICAL ATTENTION IMMEDIATELY.
DISPOSAL
Waste equipment must be collected and disposed separately from household waste because it may contain components hazardous to the environment or health. Used or waste equipment may be dropped off free of charge at the point of  sale, or at any distributor which sells equipment of identical nature and function. Dispose of product at a facility specializing in the collection of electronic waste. By doing so, you will protect the environment as well as the health of others  and yourself. If you have any questions, contact the local waste management organization. We shall undertake the tasks pertinent to the manufacturer as prescribed in the relevant regulations and shall bear any associated costs arising.
DISPOSING OF ALKALINE AND RECHARGEABLE BATTERIES
Batteries, whether alkaline or rechargeable, must not be handled together with regular household waste. It is the legal obligation of the product’s user to dispose of batteries at a nearby collection center or at a retail shop. This ensures that the batteries are ultimately neutralized in an environment- friendly way.

FEATURES

large illuminated display

• rear LED flashlight
• flat, compact design
• intelligent SMART identification and manual functions
• TRUE RMS: true effective measurement for any waveform
• conventional electrical measurements (AC/DC V-A-Ω …)
• non-contact voltage tester
• phase detection function
• detection of the quantity to be measured
• automatic measurement limit switching
• warning of fuse blowing
• indication that the measuring lead is correctly connected
• recording of the measured value
• automatic switch-off (can be disabled)
• removable protective cover
• power supply: 2 x CR2032 (3 V) batteries, not included
• accessories: measuring leads, protective cover

SMART| Automatically detects the quantity to be measured and sets the appropriate measurement limit (AC/DC  Volt, Ohm, tear test) – default mode after powering on
---|---
MANUAL| diode test, DC mA, AC mA, NCV (non-contact voltage tester), LIVE (phase detector)
****| press and hold for 2s to switch on/off / the instrument switches off automatically when not in use, after  —15mins I if you press and hold the SEL/SMART and press the on/off button together before switching on, the instrument will not switch off automatically and you will not see the clock symbol in the top left corner of the display
| on/off switch for rear LED light
| switches from SMART mode to manual mode after switching on /select the quantity to be measured by  pressing repeatedly / when pressing and holding for 2s it switches back to SMART mode
| data recording during measurement (HOLD) / press and hold to switch backlight on (and off)

AUTOMATIC QUANTITY AND MEASUREMENT LIMIT CHANGE
If the display shows SMART, the instrument selects the quantity to be measured (AC/DC Volts, Ohms, tear test), as well as the ideal measurement limit. If you want to measure something else, you can switch to manual mode (and back) by pressing repeatedly Pressing for 2s will also switch back to SMART mode. The measurable quantities that can be tested and the associated measurement limits are shown in the tables provided in this manual.

RECORDING OF THE MEASURED VALUE
By pressing the (HOLD) button, you can keep the value currently displayed on the display for easy reading until the next measurement is taken. By pressing the button again, the result of the current measurement appears once more.

AUTOMATIC POWER-OFF
To preserve the life of the batteries, the instrument will switch off, giving a long beep, if no operation is performed for approximately 15 minutes. A short beep will warn you one minute before switching off. This service is indicated by the  clock symbol in the top left corner. If you need to observe the display for a longer period during a measurement, you can deactivate the automatic switch-off. Before switching on, first press and hold the button and then press and hold the button. A warning beep is heard and the auto power off symbol disappears from the display. Switch the device off and on again to revert to automatic switch-off.

DC VOLTAGE MEASUREMENT

1. Connect the measuring leads to the instrument (red: ”VΩLive”, black: ”COM”).
2. SMART mode should be active.
3. Now you can connect the leads (in parallel) to the circuit to be measured.
4. Place the circuit to be measured under voltage and read the display. If the measuring leads are reversed, the negative polarity (-) line appears on the left side of the display.
5. The display should read DC when measuring direct voltage.

SMART 0.8 V – 600.0 V
Input impedance: 10 MO • Maximum measurable voltage: 600 V

AC VOLTAGE MEASUREMENT

1. Connect the measuring leads to the instrument (red: ”VΩLive”, black: ”COM”).
2. SMART mode should be active.
3. Now you can connect the leads (in parallel) to the circuit to be measured.
4. Place the circuit to be measured under voltage and read the display.
5. The display should read AC when measuring alternating voltage.

SMART 0.5 V – 600.0 V
Input impedance: 10 MO • Maximum measurable voltage 600 V
Frequency range: 40 —1.000 Hz • True effective measurement (TRUE RMS)

DC CURRENT MEASUREMENT

1. Connect the measuring leads to the instrument (red: ”mA”, black: ”COM”).
2. SMART mode should be turned off and the mA mode selected with the button, or just plug the red wire into the mA socket.
3. Now you can connect the leads (serially) to the switched off circuit to be measured.
4. Place the circuit to be measured under voltage and read the display. If the measuring leads are reversed, the negative polarity (-) line appears on the left side of the display.
5. The display should read DC when measuring direct current.
   If you plug the red measuring lead into the wrong socket when selecting current measurement, the display will warn you by displaying – – -. When correctly inserted into the mA socket, the 0.00 mA reading is displayed and the  instrument is ready to start the measurement.

Maximum measurable current: 600 mA
Overload protection: F600(630) mA / 250 V fuse

AC CURRENT MEASUREMENT

1. Connect the measuring leads to the instrument (red: ”mA”, black: ”COM”).
2. SMART mode should be turned off and the mA ~ mode selected with the button, or just plug the red wire into the mA socket and switch from mA (DC) mode to ~ mA (AC) mode.
3. Now you can connect the leads (serially) to the switched off circuit to be measured.
4. Place the circuit to be measured under voltage and read the display.
5. The display should read AC when measuring alternating current.
   If you plug the red measuring lead into the wrong socket when selecting current measurement, the display will warn you by displaying – – -. When correctly inserted into the mA socket, the 0.00 mA reading is displayed and the  instrument is ready to start the measurement.

Maximum measurable current: 600 mA
Overload protection: F600(630) mA / 250 V fuse
Frequency range: 40 – 1.000 Hz True effective measurement  (TRUE RMS)

RESISTANCE MEASUREMENT

1. Connect the measuring leads to the instrument (red: ”VΩLive”, black: ”COM”).
2. SMART mode should be active.
3. Now you can connect the leads to the part to be measured.
4. The arrow on the screen points to the Ω (Ohm) symbol.
   If the resistance is not removed from its circuit, it is essential to disconnect the device being tested and to discharge all capacitors before starting the measurement. A similar procedure should be followed during diode and tear  testing. If the part being tested is not removed from its circuit (its device), other parts may affect the measurement result.

SMART: 0.5 Ω – 6 kΩ
Overload protection: 250 V

TEAR TEST

1. Connect the measuring leads to the instrument (red: ”VΩLive”, black: ”COM”).
2. SMART mode should be active.
3. Now you can connect the leads to the disconnected cable, switch, fuse, etc. to be measured.
4. The arrow on the screen points to the (sound alert) symbol.
5. If the measured resistance value is less than approx. 50 Ω, an audible alarm sounds and the LED indicator on the top of the instrument lights up. If the resistance of the circuit being tested is so high that it can no longer be classified  as a faulty circuit, the symbol ‘O.L’ appears on the display.

If the part being tested is not removed from its circuit, it is essential to disconnect the device and to discharge all capacitors before starting the measurement. If the part being tested is not removed from its circuit (its device), other parts  may affect the measurement result.
Measurement voltage in open circuit: approx.1.0 V • Overload protection: 250 V

DIODE TEST

1. Connect the measuring leads to the instrument (red: ”VΩLive”, black: ”COM”).
2. SMART mode should be turned off and the mode selected with the button.
3. The arrow on the screen points to the (diode) symbol.
4. Now you can connect the leads to the outputs of the diode to be measured (red to the anode, black to the cathode).
5. The display shows the approximate open-circuit voltage drop. (in case of reversed connection the display shows ‘O.L’). A typical diode has an opening voltage drop of 0.3-0.8V.
   If the part being tested is not removed from its circuit, it is essential to disconnect the device and to discharge all capacitors before starting the measurement. If the part being tested is not removed from its circuit (its device), other  parts may affect the measurement result.
   Measurement voltage in open circuit: approx.2.0 V
   Overload protection: 250 V

CONTACTLESS AC VOLTAGE TESTER

1. Remove the measuring leads from the instrument.
2. SMART mode should be turned off and the NCV mode selected with the button.
3. Gradually move the NCV (Non Contact Voltage Sensor) sensor closer to the test point, which is connected to the mains voltage, e.g. to a mains power line. It is located above the LED light in the top centre of the instrument, as  indicated by the NCV symbol on the casing.
4. When a low AC voltage is detected, a red light will illuminate, a slow beep will sound, and the display will show – – L (Low) low voltage.
5. When a higher AC voltage is detected, a red light will illuminate, a fast beep will sound and the display will show – – H (High) high voltage.
   The distance of the instrument from the point under voltage and the coverage of the point also affect the indication of high or low voltage. Thus, the two types of signal are usually not indicative of the magnitude of the voltage, but of  its distance. Dangerous voltage levels may be present even if not indicated by the display or audible signal.
   Use a specifically designed device to detect voltage, this device only provides indicative information.

PHASE DETECTOR

1. Remove the measuring leads from the instrument.
2. SMART mode should be turned off and the LIVE mode selected with the button.
3. Connect only the red measuring lead to the VΩLive socket. (Do not connect the black lead.)
4. Use the red wire to locate the phase point of the mains cable or mains connection, switch, etc. by touching it.
5. When a low AC voltage is detected, a red light will illuminate, a slow beep will sound, and the display will show – – L (Low) low voltage.
6. When a higher AC voltage is detected, a red light will illuminate, a fast beep will sound and the display will show – – H (High) high voltage.
   The correct contact of the measuring tip with the point under voltage affects the indication of high or low voltage. Thus, the two types of signal are usually not indicative of the magnitude of the voltage, but of a possible contact fault.  Dangerous voltage levels may be present even if not indicated by the display or audible signal. Use a specifically designed device to detect voltage, this device only provides indicative information.
   • THIS PRODUCT CONTAINS A BUTTON CELL. DO NOT SWALLOW THE BATTERY, RISK OF CHEMICAL BURNS! IF SWALLOWED, IT WILL CAUSE SEVERE INTERNAL BURNS AND DEATH WITHIN 2 HOURS! KEEP  NEW AND USED BATTERIES AWAY FROM CHILDREN! IF THE BATTERY COVER DOES NOT CLOSE SECURELY, STOP USING THE PRODUCT AND KEEP IT AWAY FROM CHILDREN! IF YOU THINK A BATTERY HAS  BEEN SWALLOWED OR HAS GOT INTO ANY PART OF YOUR BODY, SEEK MEDICAL ADVICE IMMEDIATELY!
   • Remove depleted batteries immediately.
   • Do not mix batteries of different makes or states.

A blown fuse always indicates a malfunction (misuse!). The fuse will not be triggered when used as prescribed. In the event of a fault, the warning is shown on the FUSE display. Stop using the instrument. Only a qualified professional can replace it with the original type. The operation requires disassembly after removing the rear screws (F600(630) mA / 250 V).

CLEANING, MAINTENANCE

First switch off the instrument and remove the measuring leads. Clean the casing with a dry cloth. Do not use aggressive cleaning agents! Do not let liquids get inside the unit or on its connectors. To avoid scratching, wipe the display with  a slightly damp, soft cloth without applying pressure. If dust or other dirt gets into the sockets, measurements may be distorted. Clean the connectors with a cotton swab and isopropyl alcohol. Afterwards, apply a thin layer of good quality lubricant oil to a clean cotton swab and apply to the affected surfaces. Regularly check the intactness of the measuring leads and the device.

SPECIFICATION

Producer
SOMOGYI ELEKTRONIC®
www.somogyi.hu

References

• Zed d.o.o.

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