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Major tech MT255 Instruction Manual

Ac power data logger
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INSTRUCTION MANUAL
MT255
AC POWER DATA LOGGER

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Summary of Contents for Major tech MT255

  • Page 1 INSTRUCTION MANUAL MT255 AC POWER DATA LOGGER...
  • Page 3 Page no Contents...

  • Page 4: Safety Warnings

    1. SAFETY WARNINGS Ÿ 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 inspection. Ÿ This instruction manual contains warnings and safety rules which must be observed by the user to ensure safe operation of the instrument and to keep the instrument in a safe operating condition.
  • Page 5 • Disconnect all the cords and cables from the object under test and power off the instrument before opening the Battery Cover for Battery replacement. • Use only the correct supplied current clamp and voltage lead. 1.3. DANGER • Never make a measurement on a circuit with voltage over AC 1000V. •...
  • Page 6 • 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. •...
  • Page 7 3. DESCRIPTION 3.1. Meter Description 1 - LCD Display 8 - Current LED Indicator 2 - External Power Interface 9 - Voltage Sensor Interface 3 - Power/Status Button 10 - Current Sensor Interface 4 - Clock/Date, Recording Start/Stop 11 - USB Interface Button 12 - Mounting Bracket 5 - Current/Frequency Switching,...
  • Page 8 3.2. Symbols Used on LCD Display 10 - Record Mode: Normal, Trigger, 1 - Minimum Capture 2 - Maximum 11 - lnstantaneous Peak Mode 3 - Date 12 - Record: Indicates recording is active 4 - Time 13 - Set to stop recording when the 5 - Time/Date Area: Indicates recording capacity is full Time, Date and Time Interval...

  • Page 9: Recording Procedures

    4.1. Recording Data The following describes the operational flow: from preparation to completing recording. 4.1.1. Boot • Press and hold the Power/Status Button to switch on MT255. • If the LCD shows “ ” please replace the batteries. 4.1.2. Sensor Connection •...
  • Page 10 4.1.3. Set The Recording Mode 1. To set recording functions and parameters, press and hold the A/HZ/Menu button to enter the set up mode. Press the Time/Date/Start/Stop button or Peak/Min/Max/Bluetooth button to adjust the LCD display until if shows “SET 1”. 2.
  • Page 11 4.1.6. Set the Date and Time 1. Push and hold the Max/Min/Peak/Bluetooth button to scroll down to the setup screen “SET 4”. 2. Press the Power/Status button to enter the time setting. 3. Press the Power/Status button to move through Year/Month/Day and Time.
  • Page 12 4.1.9. Start Recording • Settings cannot be changed during recording, check settings before initiating a recording. • reviously recorded data will be cleared before starting recording (in this case, the LCD will display “ ” when you press and hold the Time/Date/Start/Stop button).

  • Page 13: Recording Modes

    • See Chapter 7 (page 14) for data viewing and PC software operations. 4.2. Clearing Record Data • Press and hold the A/Hz/Menu Button to enter the setting mode, turn on PEAK/MAX/MIN/Bluetooth Button to adjust the LCD display “ ”, press the Power/Status Button to enter the data clear. •...
  • Page 14 • During installation you can choose whether to install drivers. • After installing, connect the MT255 via the PC n which the Software has been installed. Transfer the recorded data on the logger to the PC. • For more help, see the software manual for details.
  • Page 15 Adapter are compatible, and then connect the Power Cord. • Disconnect the Power cord of the AC Adapter from the outlet when the MT255 is not in use. • Do not put any heated objects on the AC Adapter or Power Cord.

  • Page 16: Specifications

    Battery lndicator (3 levels) Over-range Indication “OL” mark is displayed when exceeding a measuring range Auto Power Off Power-off function turns the MT255 off automatically after 10 minutes with no input while not recording. Location For Use Indoor use, Altitude up to 2000m Temperature &...
  • Page 17 10.2.3. Active Power Range Resolution Tolerances 9.999kW 0.001kW ±(4% + 10 digit) 99.99kW 0.01kW ±(4% + 1 digit) 400.0kW 0.1kW Accuracy defined for: Sine wave, AC V RMS <1000.0V and AC A RMS <400.0A, Frequency 45-65Hz, PF=1.00. When the power factor is closer to 0, the error margin is greater. To ensure effective measurement, ensure that the absolute value of the power factor is greater than 0.90.
  • Page 20 MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com www.majortech.com.au sales@major-tech.com info@majortech.com.au...

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