Testboy TB-3000 Handheld Multimeter Instruction Manual

Testboy TB-3000 Handheld Multimeter Instruction Manual

Notes

Safety notes

WARNING
An additional source of danger is posed my mechanical parts which can cause severe personal injury.
Objects can also be damaged (e.g., the instrument itself can be damaged).

WARNING
An electric shock can result in death or severe injury. It can also lead to property damage and damage to this instrument.

WARNING
Never point the laser beam directly or indirectly (on reflective surfaces) towards the eyes. Laser radiation can cause irreparable damage to the eyes. You must first deactivate the laser beam when measuring close to people.

General safety notes

WARNING
Unauthorized changes or modifications of the instrument are forbidden – such changes put the approval (CE) and safety of the instrument at risk. In order to operate the instrument safely, you must always observe the safety instructions, warnings and the information in the “Proper and Intended Use” Chapter.

WARNING
Please observe the following information before using the instrument:

• Do not operate the instrument in the proximity of electrical welders, induction heaters and other electromagnetic fields.
• After an abrupt temperature fluctuation, the instrument should be allowed to adjust to the new temperature for about 30 minutes before using it. This helps to stabilize the IR sensor.
• Do not expose the instrument to high temperatures for a long period of time.
• Avoid dusty and humid surroundings.
• Measurement instruments and their accessories are not toys. Children should never be allowed access to them!
• In industrial institutions, you must follow the accident prevention regulations for electrical facilities and equipment, as established by your employer’s liability insurance organization.

Please observe the following five safety rules:

1. Disconnect.
2. Ensure that the instrument cannot be turned back on again.
3. Ensure isolation from the main supply voltage (check that there is no voltage on both poles).
4. Earth and short-circuit.
5. Cover neighbouring parts that are under live electrical load.

Proper and intended use
This instrument is intended for use in applications described in the operation manual only. Any other usage is considered improper and non-approved usage and can result in accidents or the destruction of the instrument. Any misuse will result in the expiry of all guarantee and warranty claims on the part of the operator against the manufacturer.

Remove the batteries during longer periods of inactivity in order to avoid damaging the instrument.

We assume no liability for damages to property or personal injury caused by improper handling or failure to observe safety instructions. Any warranty claim expires in such cases. An exclamation mark in a triangle indicates safety notices in the operating instructions. Read the instructions completely before beginning the initial commissioning. This instrument is CE approved and thus fulfils the required guidelines.

All rights reserved to alter specifications without prior notice
© Testboy GmbH, Germany.

Disclaimer and exclusion of liability

The warranty claim expires in cases of damages caused by failure to observe the instruction! We assume no liability for any resulting damage!

Testboy is not responsible for damage resulting from:

• failure to observe the instructions,
• changes in the product that have not been approved by Testboy,
• the use of replacement parts that have not been approved or manufactured by Testboy,
• the use of alcohol, drugs or medication.

Correctness of the operating instructions

These operating instructions have been created with due care and attention.
No claim is made nor guarantee given that the data, illustrations and drawings are complete or correct. All rights are reserved in regards to changes, print failures and errors.

Disposal
For Testboy customers: Purchasing our product gives you the opportunity to return the instrument to collection points for waste electrical equipment at the end of its lifespan.

The WEEE directive regulates the return and recycling of electrical appliances. Manufacturers of electrical appliances are obliged to take back and recycle all electrical appliances free of charge. Electrical devices may then no longer be disposed of through conventional waste disposal channels. Electrical appliances must be recycled and disposed of separately. All equipment subject to this directive is marked with this logo.

Disposing of used batteries

As an end user, you are legally obliged (by the relevant laws concerning battery disposal) to return all used batteries.
Disposal with normal household waste is prohibited!
Contaminant-laden batteries are labelled with the adjacent symbol which indicates the prohibition of disposal with normal household waste.
The abbreviations used for heavy metals are:
Cd = Cadmium, Hg = mercury, Pb = lead.
You can return your used batteries for no charge to collection points in your community or everywhere where batteries are sold!

Certificate of quality
All aspects of the activities carried out by Testboy GmbH relating to quality during the manufacturing process are monitored permanently within the framework of a Quality Management System. Furthermore, Testboy GmbH confirms that the testing equipment and instruments used during the calibration process are subject to a permanent inspection process.

Declaration of Conformity
The product conforms to the most recent directives. For more information, go to www.testboy.de

Operation

Introduction

The Testboy® TB-3000 is a general purpose multimeter. This measuring instrument has been manufactured to the latest safety specifications, and guarantees safe and reliable use. The multimeter is a valuable aid for all standard measurement tasks in trade and industrial applications as well as for the hobby electrician interested in electronics.
Safety specifications meet IEC/EN 61010 -1 / DIN VDE 0411

Scope of supply

• TB-3000 Multimeter including safety test leads (CAT IV 600 V)
• Operation manual
• Ever-ready carrying case

Safety precautions
The TB-3000 left our factory in a technically safe and flawless condition. In order to maintain this condition, the user must observe the safety notes contained in this manual.

Caution!
Use only included safety test leads or equivalent with at least same measuring category CAT IV 600 V.

• In order to avoid an electrical shock hazard you must observe the specified precautionary measures when working with voltages greater than 120 V (60 V) DC or 50 V (25 V) eff. AC. These values represent the specified limits of safe-to-touch voltages in accordance with DIN VDE (values given in brackets apply to medical or agricultural applications).
• Before taking each measurement, ensure that the test leads and the measuring instrument are in a flawless condition.
• The test leads and test probes must only be handled using the isolated grips. Avoid touching the tips of the test probes under all circumstances.
• In order to ensure reliable use, the responsible persons, or user, should observe the operating instructions. Non-observance of the manufacturer information can influence reliable operation of the device.
• The parts or accessories of the device must only be changed or replaced in agreement with the manufacturer or their representative.
• The device must only be used in accordance with the conditions and for the purposes for which it has been developed and manufactured. Thus, strictly observe the safety instructions and technical data and the device must be used in a dry environment.

The test instrument must only be used for the specified measurement range.

Attention!
Each time before use, inspect the instrument to ensure that it is working faultlessly (for example, on known source of voltage). Please also refer to DIN VDE 0105, Part 1.

Explanation of the rotary selector switch, buttons and sockets

ON/OFF switch

(via rotary selector switch)

| The instrument is turned on by selecting a measurement range and turned off by setting the switch to ‘OFF’.
---|---
Functional button (M)| Press this button to toggle between the functions printed on the housing.
Memory log button (H)| Press this button to store the actual

measurement value.

Light button ( ☼ )| Press this button to turn the torch function on and off.
Selector switch, measurement function| Use the rotary selector switch to select the various measurement modes.
10 A socket (left)| The 10 A socket must be used for measurements above 250 mA.
Input socket (right)| Red test lead for all types of signals supported by the instrument.
Ground socket| Black test lead for all types of signals supported by the instrument.

DC voltage measurement

Set the selector switch to measurement range V=. Insert the black test lead into the ‘COM’ socket and the red test lead into the right-hand socket. Using the test probes, touch the test points of the test object. The multimeter automatically searches for the most suitable measurement range. Read measurement value on the display.

Volts DC

± 0.8 % of rdg. + 5 digits

2 V| 0.001 V
20 V| 0.01 V
200 V| 0.1 V
600 V| 1 V

Input impedance: 10 MΩ.
Max. input voltage 600 V DC.

AC voltage measurement

Set the selector switch to measurement range V~.
Insert the black test lead into the ‘COM’ socket and the red test lead into the right-hand socket. Using the test probes, touch the test points of the test object.
The multimeter automatically searches for the most suitable measurement range. Read measurement value on the display.

Volts AC

Input impedance: 10 MΩ.
Max. input voltage 600 V AC RMS, frequency range: 40-400 Hz.

The red test line can be used for checking single pole phases by pressing the “M” button. The display flashes and a signal sounds. Before measurement, it is imperative that all other test lines are removed. This measurement is not suitable for detecting hazardous mains voltage. Thus, also if the display does not flash during the check and no signal is emitted, a hazardous high voltage (>33 V AC or 70 V DC) can nevertheless be present.

Attention!
Before touching current-carrying parts, using direct, two-pole contact measurement of the AC current range, check that no hazardous voltage is applied.

CABLE BREAK DETECTION

Cable break detection is determined for non-contact detection of cable breaks on non-exposed, current-carrying lines.
Set the selector switch to the function CABLE BREAK DETECTION.

If the sensor at the upper end of the multimeter is routed through a current- carrying line (100 – 300 V AC) at the supply point whilst the “M” button is pressed, the display flashes and a signal sounds upstream of the break point.
If the display does not flash whilst carrying out the cable break detection and no signal is emitted, a hazardous high voltage (>33 V AC or 70 V DC) can nevertheless be present. The non.contact sensor can only detect voltage that is generated due to sufficiently strong voltage fields (electricity grid, >100 V AC). For weaker field strengths, it is possible that the device does not detect the voltage applied and, thus, cannot correctly locate the cable break. If the device does not detect a voltage, it can, amongst other things, be a result of the following factors:

• Screened lines/wires
• Thickness and type of insulation
• Distance from the source of voltage

Attention!
Be careful with voltages of more than 30 V, because there is a risk of electric shock.

Caution!
The function for non-contact detection of cable breaks is not suitable for the detection of hazardous mains voltage.

Attention!
Before touching current-carrying parts, using direct, two-pole contact measurement of the AC current range, check that no hazardous voltage is applied.

DC current measurement

Set the selector switch to measurement range A. Use the ‘M’ button to set the device to DC. Insert the black test lead into the ‘COM’ socket and the red test lead into the right-hand socket (up to max. 250 mA).

You must use the ‘10 A’ socket when measuring currents above 250 mA.

Using the test probes, touch the test points of the test object. The multimeter automatically searches for the most suitable measurement range. Read measurement value on the display.

To protect against overheating, measurements should not be taken for more than 30 seconds. Following this the device should be allowed to cool down for at least 30 minutes.

Direct current

Overload protection: F 250mA/690V fuse protection for µA and mA ranges.
10 A range is protected by 10 A/690V.
On 10A-range pay attention to maximum ON/OFF time!

To protect against overheating, measurements should not be taken for more than 30 seconds. Following this the device should be allowed to cool down for at least 30 minutes.

AC current measurement

Set the selector switch to measurement range A. Use the ‘M’ button to set the device to AC. Insert the black test lead into the ‘COM’ socket and the red test lead into the right-hand socket (up to max. 250 mA).

You must use the ‘10 A’ socket when measuring currents above 250 mA.

Using the test probes, touch the test points of the test object. The multimeter automatically searches for the most suitable measurement range. Read measurement value on the display.

To protect against overheating, measurements should not be taken for more than 30 seconds. Following this the device should be allowed to cool down for at least 30 minutes.

Alternating current

Overload protection: F 250 mA / 690 V fuse protection for µA and mA
ranges.
10 A range is protected by F10 A / 690 V.
On 10A-range pay attention to maximum ON/OFF time!

To protect against overheating, measurements should not be taken for more than 30 seconds. Following this the device should be allowed to cool down for at least 30 minutes.

Resistance measurement

Set the selector switch to measurement range ‘Ω’. Insert the black test lead into the ‘COM’ socket and the red test lead into the ‘V Ω A’ socket. Using the test probes, touch the test points of the test object. The multimeter automatically searches for the most suitable measurement range. Read measurement value on the display.

Resistance

Measurement voltage: 0.25 V.
Over-range protection: 600 V AC / DC < 30 s.

Diode

Set the selector switch to measurement range ‘Ω’. Insert the black test lead into the ‘COM’ socket and the red test lead into the right-hand socket. Use the ‘M’ button to set the device to . Using the test probes, touch the test points of the test object. Red test lead = anode, Black test lead = cathode. The forward voltage drop is displayed.

Forward biasing current: approx. 0.6 mA, backward voltage: approx. 1.5 V.
Over-range protection: 600 V AC / DC < 30 s.

Continuity test

Set the selector switch to measurement range ‘Ω’. Insert the black test lead into the ‘COM’ socket and the red test lead into the right-hand socket. Using the button ‘M’, set the device to ‘◦))’. Using the test probes, touch the test points of the test circuit. An acoustic signal is emitted if resistance below 50 Ω is measured. Read measurement value on the display.

Isolate from the power supply and discharge capacitors in the circuit to be measured.

Continutiy test

Measuring-circuit voltage: approx. 0.5 V.
Over-range protection: 600 V AC / DC < 30s.

True RMS

If measuring non-sinus wave forms, low measurement errors can occur if using the True RMS function, in comparison to using traditional measurement procedures.
Sinus-form and non-sinus form signals can be accurately measured using the True RMS function.

Maintenance

The instrument does not require special maintenance when used as specified in this operation manual.

Cleaning

Use a damp cloth and mild household cleaning agent to clean the instrument should it become soiled through daily use. Never use aggressive cleaning agents or solvents to clean the instrument.

Changing the battery

Change the battery when the battery symbol is displayed. Remove the test leads from the measuring instrument before changing the battery!

Remove the screw on the rear of the instrument, open the battery compartment and remove the used batteries. Insert new batteries (2 × 1.5 V AAA Micro). Replace battery compartment cover and screw tight.

Only use the specified batteries!
Batteries should not be disposed of in household rubbish! Please observe any relevant laws pertaining to their disposal in the country of use.

Changing the fuse

When changing the fuse, previously disconnect the test leads from the device and release all screws on the rear. Carefully remove the rear of the housing and replace the fuses with the same type (fuse F 250 mA or 10 A / 690 V or F10 A / 690 V). Close the device.

Only use the specified fuses!

Technical data

The accuracy relates to 1 year at a temperature between 18 °C-28 °C and 75% humidity (yearly calibrations are offered).
Autoranging and manual measurement range selection.
Max. voltage between the connection socket and ground: 600 V AC/DC.

Measurement Categories are used to rate test instruments on their ability to resist a voltage spike, which is applied through a specific resistance.

Measurement Category II

Measurements on the power circuits that have a direct plug connection to the low voltage network. Normal short-circuit current < 10 kA.
This category refers to local-level electrical distribution, such as that provided by a standard wall outlet (for example, 115 V AC voltage for U.S. or 230 V AC voltage for Europe). Examples of Measurement Category II are measurements performed on household appliances, portable tools, and similar modules.

Measurement Category III

Measurements within the building installation (stationary consumer devices with non-plug-in connection, distributor connection, permanently installed equipment in the distributor). Normal short-circuit current < 50 kA.
This category refers to measurements on hard-wired equipment in fixed installations, distribution boards, and circuit breakers. Other examples are wiring, including cables, bus bars, junction boxes, switches, socket outlets in the fixed installation, and stationary motors with permanent connections to fixed installations.

Measurement Category IV

Measurements at the source of the low voltage installation (meters, mains connection, primary overcurrent protection). Normal short-circuit current >> 50 kA.
This category refers to measurements on primary over-current protection devices and on ripple control units.

Testboy GmbH
Elektrotechnische Spezialfabrik
Beim Alten Flugplatz 3
D-49377 Vechta
Germany

Tel: 0049 (0)4441 / 89112-10
Fax: 0049 (0)4441 / 84536

http://www.testboy.de/
info@testboy.de

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