hama 00223565 Digital Multimeter Instruction Manual

hama 00223565 Digital Multimeter

Product Information

The Digital Multimeter is a versatile device used to measure different electrical values like voltage, current, and resistance. The device has a 3.5-character display, measuring range adjustment, COM port, VmA port, and 10 A port. It has a measuring range of 200 mV to 300 V for AC and DC voltages, 200 ohms to 2 M ohms for resistance, and a maximum current measuring range of 10 A. The device comes with overvoltage protection in the form of two fuses.

Product Usage Instructions

1. Controls and Displays: The Digital Multimeter has five ports and a display. The ports are for measuring voltage, current, and resistance. The display shows the measured values.
2. Explanation of Warning Symbols and Notes: The device has two warning symbols – one for safety instructions and hazards and the other for additional information or important notes. The device also has a symbol indicating parts energized with dangerous voltage.
3. Specifications: The device has different measuring ranges for AC and DC voltages, resistance, and current. It also has overvoltage protection in the form of two fuses.
4. Measuring Operation: Only connect the measuring cables required for the respective measuring operation. For safety reasons, remove all measuring cables that are not required. Before measuring the voltage or current, ensure that the device is not set to the measuring range for resistance.
5. Voltage measurement: Connect the measuring cables to the voltage port and select the appropriate measuring range. Ensure that the device is not set to the measuring range for current or resistance.
6. Current measurement: Connect the measuring cables to the current port and select the appropriate measuring range. Ensure that the device is not set to the measuring range for voltage or resistance.

Controls and Displays

1. 3.5-character display
2. Measuring range adjustment
3. COM port
4. VmA Ω Port
5. 10 A Port

Thank you for choosing a Hama product.
Take your time and read the following instructions and information completely. Please keep these instructions in a safe place for future reference. If you sell the device, please pass these operating instructions on to the new owner.

Explanation of Warning Symbols and Notes

Warning: This symbol is used to indicate safety instructions or to draw your attention to specific hazards and risks.
Note: This symbol is used to indicate additional information or important notes.

Risk of electric shock
This symbol indicates product parts energized with a dangerous voltage of sufficient magnitude to constitute a risk of electric shock.

Package Contents

1. 1x Digital Multimeter »EM393B«
2. 1x measuring cable, red
3. 1x measuring cable, black
4. 1x E block or 9 V block
5. Operating Instruction

Safety Notes

• This product is intended for private, non-commercial use only.
• Use the product for its intended purpose only.
• Protect the product from dirt, moisture and overheating, and only use it in a dry environment.
• Do not use the product in the immediate vicinity of heaters or other heat sources or in direct sunlight.
• Do not use the product in areas where the use of electronic devices is not permitted.
• Do not drop the product and do not expose it to any major shocks.
• Do not modify the product in any way. Doing so voids the warranty.
• Do not operate the product outside the power limits given in the specifications.
• Do not open the device or continue to operate it if it becomes damaged.
• Do not attempt to service or repair the product yourself. Leave any and all service work to qualified experts.
• Use the item only in moderate climatic conditions.
• Inappropriate use of this measuring device can lead to damage, electric shock, injuries or mortal danger. Please read these operating instructions carefully before using the device for the first time.
• Always disconnect the measuring cables before changing the battery or fuse.
• Before use, check the measuring cables and the measuring device for any damage. Have any damage repaired and replace defective cables before using the device.
• Take special care when handling voltages higher than AC 25 V (root-mean-square value) or DC 35 V . There is a risk of electric shock when handling devices with these voltages.
• Discharge all capacitors and disconnect the test object from the mains grid before testing diodes, resistors or circuit continuity.
• Measurement category III is intended for measurements in the building installation. Examples are measurements on distribution boards, circuit breakers, the cabling, busbars, distribution cabinets, switches, sockets of the fixed installation, devices for industrial use and some other devices as well as permanently installed motors.
• This device is not a toy and must be kept away from children.
• It contains dangerous objects and small parts; always make sure that these are not swallowed by children. If a child has swallowed a part of this device, contact a doctor immediately.
• Do not leave batteries or packaging material lying around unattended. These can put children at risk if used as a toy.
• If you do not plan to use the device for a longer period of time, remove the battery to prevent it from leaking.
• Old or damaged batteries can cause chemical burns to your skin.
• In such cases, always use protective gloves.
• A correct display is only guaranteed for temperatures between 0 °C and +40 °C and for frequencies from 40 Hz to 400 Hz.
• The clarity of the display may be impaired by unfavourable lighting (e.g. sunlight), unfavourable locations (e.g. wooden step ladders or insulating floor covering), or by improperly grounded AC grids.
• Never exceed the maximum permitted input values for current and voltage.
• TAKE SPECIAL CARE when handling high voltages.
• DO NOT measure the voltage at the “COM” input socket if the voltage is higher than 300 V above earth connection.
• NEVER connect the measuring cables to a voltage source if the function selection switch is set to current, resistor or diode test.
• Not following these instructions can result in damage to the measuring device.
• ALWAYS discharge the filter capacitors in the power supplies and disconnect the voltage source if you want to measure resistance or test diodes.
• ALWAYS disconnect the power and remove the measuring cables before opening the cover to change the fuse or battery.
• NEVER use the measuring device unless you have safely locked the cover on the back of the device again.

Warning – Batteries

• When inserting batteries, note the correct polarity (+ and markings) and insert the batteries accordingly. Failure to do so could result in the batteries leaking or exploding.
• Only use batteries that match the specified type. Keep the instructions for the correct choice of batteries included with the operating instructions of devices safe for future reference.
• Before you insert the batteries, clean the battery contacts and the polarity contacts.
• Do not allow children to change batteries without supervision.
• Replace all the batteries in a set at the same time.
• Do not mix old and new batteries, or batteries of different types or from different manufacturers.
• Remove the batteries from products that are not being used for an extended period (unless these are being kept ready for an emergency).
• Do not short-circuit batteries.
• Do not charge batteries.
• Do not burn batteries or heat them up.
• Never open, damage or swallow batteries or allow them to enter the environment. They can contain toxic, environmentally harmful heavy metals.
• Remove spent batteries from the product and dispose of them without delay.
• Avoid storing, charging and using in extreme temperatures and at extremely low atmospheric pressures (such as at high altitudes).
• Ensure that batteries with damaged housings do not come into contact with water.
• Keep batteries out of the reach of children.

Replacing the battery

• Disconnect the measuring device from live components and pull off the measuring cables.
• Unscrew both screws at the back of the housing.
• Remove the rear part of the housing.
• Avoid touching the printed circuit board or any parts attached to it, as this may cause damage.
• Close the cover and firmly tighten the screws of the housing.

Warning: To avoid the risk of electric shock, proceed as follows before opening the housing:

• Remove the testing probes from the measuring points.
• Remove the testing probes from the connection sockets.
• Switch the multi-meter off.

Specifications

Overvoltage protection:
Fuse F1: 250mA/300V, fast; Fuse F2: 10A/300V fast Voltage drop during measurements: 200 mV

Measuring operation

Warning

• Never exceed the maximum permitted input values for current and voltage.
• Never grip the test prods outside of the grip area identified with tactile markings while taking a measurement.

Risk of electric shock
Only the two measuring cables required for the respective measuring operation may be connected to the measuring device. For safety reasons, remove all measuring cables from the measuring device that are not required.

Voltage measurement „V“

Warning: Before measuring the voltage, always make sure that the measuring device is not set to the measuring range for current or resistance.

• To measure DC voltages proceed as follows:
• Switch on the “EM393B” by turning the switch to the largest measuring range (300 V=, DC).
• Plug the measuring cables into the measuring sockets according to the colour coding.
• Connect the two test prods to the object to be measured (battery, circuit, etc.).
• The red test prod corresponds to the positive pole, the black test prod to the negative pole.
• The respective polarity of the measured value together with the actual measured value is shown on the display.
• Depending on the result, you can now adjust the measuring range by turning the switch.
• If you measure the DC voltage and a minus sign “-” is shown in front of the measured value, the measured voltage is negative (or the measuring cables are reversed).
• After completing the measuring process, remove the measuring cables from the object to be measured and switch off the “EM393B” (rotary switch in “OFF” position).
• To measure AC voltages (V ~), proceed as follows:
• Put the “EM393B” into operation as described for the measuring of DC voltage and select the largest measuring range (300 V~, AC).
• To measure AC voltages (V ~), proceed as follows:
• Put the “EM393B” into operation as described for the measuring of DC voltage and select the largest measuring range (300 V~, AC).
• After completing the measuring process, remove the measuring cables from the object to be measured and switch off the “EM393B” (rotary switch in “OFF” position).

Current measurement „A“

Warning

• The maximum permissible voltage must not exceed 300 V.
• Measurements above 200 mA may only be carried out for a maximum of 10 seconds and with a subsequent break of at least 15 minutes between measurements.
• To measure direct currents , proceed as follows:
• Plug the red measuring cable into the 10 A measuring socket (blue, for currents >200 mA) or into the red measuring socket (for currents <200 mA). Plug the black measuring cable into the COM measuring socket.
• Select the largest measuring range, i.e., 200 mA for low direct currents; for larger currents, set the selection switch to 10 A.
• Connect the two test prods in series to the object to be measured (battery, circuit, etc.); the respective polarity of the measured value together with the actual measured value is shown on the display.
• Depending on the result, you can now adjust the measuring range by turning the switch (in this case: direct current less than 20 mA).
• After completing the measuring process, remove the measuring cables from the object to be measured and switch off the “EM393B” (rotary switch in “OFF” position).

Warning

• Never measure currents in excess of 10 A in the 10 A range, as this can result in damage to the “EM393B”. Also, never measure currents in excess of 200 mA in the mA range, as this would trip the internal microfuse.
• Alternating currents cannot be measured with the “EM393B”!

Resistance measurement „Ω“

Warning: Always make sure that all circuitry components, circuits and parts to be measured as well as other objects to be measured are disconnected from the power supply and discharged.

To measure the resistance “Ω”, proceed as follows:

• Switch on the “EM393B” by turning the switch to the largest measuring range (2 M).
• Plug the measuring cables into the measuring sockets according to the colour coding.
• Check the measuring cables for continuity by connecting the two test prods to one another. This must result in a resistance of about 0.5 ohm (inherent resistance of the measuring cables).
• Then connect both test prods to the object to be measured. Unless the object has a high\ resistance or is discontinuous, the measured value appears on the display. Wait until the display has stabilised.
• Depending on the result, you can now adjust the measuring range by turning the switch.
• After completing the measuring process, remove the measuring cables from the object to be measured and switch off the “EM393B” (rotary switch in “OFF” position).

Diode test and continuity check

Warning: Always make sure that all circuitry components, circuits and parts to be measured as well as other objects to be measured are disconnected from the power supply and discharged.

Switch on the “EM393B” by turning the switch to the diode symbol.

• Plug the measuring cables into the measuring sockets according to the colour coding.
• Check the measuring cables for continuity by connecting the two test prods to one another. This must result in a value of about 0, and a humming tone must be audible. A measured value of about < 50 ohm is recognized as representing continuity and a continuous tone is emitted.
• Connect both test prods to the object to be measured.
• After completing the measuring process, remove the measuring cables from the object to be measured and switch off the “EM393B” (rotary switch in “OFF” position).

Test signal TTL (Transistor-Transistor Logic)

• Function check for transistor control (logic control in digital technology).
• Output as 0 (no current) or 1 (current).

Replacing the fuse

The multimeter is protected by two fuses (F1 250mA/300V fast, Ø 5x20mm and F2 10A/300V, fast, Ø 5x20mm). To replace it, proceed as follows:

• Disconnect the measuring device from live components and pull off the measuring cables.
• Unscrew both screws at the back of the housing.
• Remove the rear part of the housing.
• Lift the fuse from its socket with tweezers or a screwdriver.
• Insert a new fuse with the same specifications into the socket.
• Avoid touching the printed circuit board or any parts attached to it, as this may cause damage.
• Close the cover and firmly tighten the screws of the housing.

Cleaning

Before cleaning the device, it is essential that you observe the following safety instructions:

When opening covers or removing parts (unless these can be opened or removed by hand), live parts may be exposed. Before carrying out any cleaning or repair work, the connected cables must be disconnected from the measuring device and all objects to be measured. Switch off the “EM393B”. Do not use carbon-containing cleaning agents, benzines, alcohols or the like for cleaning. These substances have a damaging effect on the surface of the measuring device. Moreover, the vapours are hazardous to health and explosive. Do not use any tools with sharp edges, screwdrivers, metal brushes or the like for cleaning. To clean the device or the display and the measuring cables, use a clean, lint-free, antistatic and slightly moist cleaning cloth.

Warranty Disclaimer

Hama GmbH & Co KG assumes no liability and provides no warranty for damage resulting from improper installation/mounting, improper use of the product or from failure to observe the operating instructions and/or safety notes.

Hama GmbH & Co KG 86652 Monheim / Germany
All listed brands are trademarks of the corresponding companies. Errors and omissions excepted, and subject to technical changes. Our general terms of delivery and payment are applied.

Service & Support
www.hama.com
+49 9091 502-0

References

• hama.com

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