TECHNO VIETNAM 8128 Load Current Clamp Sensors Instruction Manual

TECHNO VIETNAM 8128 Load Current Clamp Sensors Instruction Manual

1. Safety warnings

○This instrument has been designed, manufactured and tested according to IEC 61010: Safety requirements for Electronic Measuring apparatus, and delivered in the best condition after passing quality control tests.
This instruction manual contains warnings and safety rules which have to be observed by the user to ensure safe operation of the instrument and to maintain it in safe condition. Therefore, read through these operating instructions before using the instrument.

WARNING

• Read through and understand instructions contained in this manual before using the instrument.

• Keep the manual at hand to enable quick reference whenever necessary.

• The instrument is to be used only in its intended applications.
  The operating instructions described in the manual must be observed.

• Understand and follow all the safety instructions contained in the manual. It is essential that the above instructions are adhered to. Failure to follow the above instructions may cause injury and or
  instrument damage.
  Kyoritsu is by no means liable for any damage  resulting from the instrument in contradiction to this cautionary note

The symbol # indicated on the instrument, means that the user must refer to the related parts in the manual for safe operation of the instrument. It is essential to read the instructions wherever the # symbol appears in the manua

DANGER

• Never make measurement on a circuit in which the electrical potential exceeds AC300V.
• Do not make measurement when thunder rumbling. If the instrument is in use, stop the measurement immediately and remove the instrument from the measured object.
• Do not attempt to make measurement in the presence of flammable gasses. Otherwise, the use of the instrument may cause sparking, which can lead to an explosion.
• The transformer jaws are made of metal and their tips are not completely insulated. Be especially careful about the possible shorting where the measured object has exposed metal parts.
• Never attempt to use the instrument if it’s surface or your hand are wet.
• Do not exceed the maximum allowable input of any measuring range.
• Use insulated protective gears, such as insulated gloves, for your safety when possible electric shock hazards are concerned.
• Keep your fingers and hands behind the barrier during a measurement.

WARNING

• Never attempt to make any measurement, if any abnormal conditions are noted, such as broken case, and exposed metal parts.
• Do not install substitute parts or make any modification to the instrument. Return the instrument to the distributor from who you purchased this instrument for repair or re-calibration in case of suspected faulty operation.
• Always keep your fingers and hands behind the barrier on the instrument to avoid the possible shock hazard.

CAUTION

• Do not step on or pinch the cord to prevent the jacket of cable from being damaged.

• The output connector shall be removed or connected without clamping a conductor.
  Otherwise, it may cause a failure.

• Do not expose the instrument to direct sunlight, high temperatures, humidity or dew.

• Never give shocks, such as vibration or drop, which may damage the instrument.

• Use a damp cloth and detergent for cleaning the instrument. Do not use abrasives or solvents.

Safety symbols

Measurement categories(Over-voltage categories)
To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as o to CAT IV, and called measurement categories. Higher-numbered categories correspond to electrical environments with greater momentary energy. So a measuring instrument designed for
CAT III enviroments can endure greater momentary energy than one desined for CAT II.
O(None, Other): Circuits which are not directly connected to the mains power supply.
CAT Ⅱ: Primary electrical circuits of equipment connected to an AC electrical outlet by a power cord.
CAT Ⅲ: Primary electrical circuits of the equipment connected directly to the distribution panel, and feeders from the distribution panel to outlets.
CAT Ⅳ: The circuit from the service drop to the service entrance, and to the power meter and primary overcurrent protection device (distribution panel).

2. Features

• This is a clamp sensor for our Power meter.
• Designed to international safety standard IEC 61010-2-032
  CAT Ⅲ 300V (Pollution Degree 2)

3. Instrument layout

Barrier : It is a part providing protection against electrical shock and ensuring the minimum required air and creepage distances.

4. Din plug pin assignment

3: GND pin
5: Output signal pin
6: Sensor signal pin
（Resistance between 3Pin and 6Pin : 91kΩ）

1, 2 and 4: No use
*Above figure shows the pin assignment seeing the Clamp sensor from output connector part. The figure of the pin assignment of connection terminal is symmetrical to above figure.

5. Specifications

6. Operating instructions

DANGER

• Never make measurement on a circuit in which the electrical potential exceeds AC300V in order to avoid possible shock hazard.
• The transformer jaws are made of metal and their tips are not completely insulated. Be especially careful about the possible shorting where the measured object has exposed metal parts.

CAUTION

• Take sufficient care to avoid shock, vibration or excessive force when handling the instrument.
  Otherwise, precisely adjusted transformer jaws will be damaged.

• When transformer jaws do not fully close, never try to close them by force, but make them free to move and try again. If a foreign substance is stuck in the jaw tips, remove it.

• When making current measurements, keep the transformer jaws fully closed.
  Otherwise, accurate measurements cannot be taken. Maximum conductor size is 24mm in diameter.

• Hold the inserting part (except for the cable) and disconnect the Output connector from the measuring instrument so as not to cause a break in the cable.

6-1 Measurement procedures

(1) Connect the Output connector to the Input terminal of  the measuring instrument.
(2) Press the Trigger to open the transformer jaws andclamp onto one conductor. In this case, the measured conductor shall be at the center of the jaws.
When connecting a sensor with a Power meter (our Power meter, MODEL6300, etc.) match the arrow mark (Power source to load), which is indicated on the transformer jaws, with the current flowing
direction in 0order to synchronize the phases of measured current and output voltage.
(3) Ensure that the tips of transformer jaws are firmly closed.

6-2 Setting for MODEL6300 Power meter

(MODEL 6300 is a discontinued product.) Refer to the table below when using these clamp sensors with MODEL6300, It shows the settings for clamp sensor and available current ranges on MODEL6300. For further details on the settings, see the instruction manual for MODEL6300.

This instrument satisfies the marking requirement defined in the WEEE Directive (2002/96/EC).
This symbol indicates separate collection for electrical and electronic equipment.

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