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Instruction Manual for Major Tech models including: MT255, 2024, MT255 AC Power Data Logger, MT255, AC Power Data Logger, Data Logger, Logger
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
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DocumentDocumentINSTRUCTION MANUAL MT255 AC POWER DATA LOGGER 2 Contents Page no 3 1. SAFETY WARNINGS Y 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. Y 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. Y Read through these operating instructions before using the instrument. 1.1. International Safety Symbols 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 manual. DANGER is reserved for conditions and actions that are likely to cause serious or fatal injury. WARNING is reserved for conditions and actions that can cause serious or fatal injury. CAUTION is reserved for conditions and actions that can cause injury or instrument damage Indicates a instrument with double or reinforced insulation. Indicates that this instrument can clamp on live bare conductors when the voltage to be tested is below circuit-ground to earth voltage against the indicated measurement category. Indicates AC. Indicates DC. 1.2. WARNING · Read through and understand the instructions contained in this manual before using the instrument. · Keep the manual on hand to enable quick reference whenever necessary. · The instrument is to be used only in its intended applications. · 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, instrument damage and/or damage to equipment under test. · Never attempt to make a measurement if any abnormal conditions, such as broken case and exposed metal parts are found on the instrument. · Do not install substitute parts or make any modification to the instrument. For repair or re-calibration, return the instrument to your local distributor from where it was purchased. · Do not try to replace the batteries if the instrument is wet or being operated. 4 · 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. · Do not make measurement during thunder and lightning, stop measurement immediately and disconnect the instrument from the circuit under test. · Do not attempt to make a measurement in the presence of flammable gasses, otherwise, the use of the instrument may cause sparks, which can lead to an explosion. · The clamp jaws are designed not to short the circuit under test. If the circuit under test has exposed conductive parts, however, extra precaution should be taken to minimize the possibility of shorting. · Never attempt to use the instrument if it or your hand is wet. · Do not exceed the maximum allowable input of any measuring range. · Never open the Battery Cover during a measurement. · Verify proper operation on a known source before use or taking action as a result of the indication of this meter. 1.4. CAUTION · Put the instrument on a stable place where it is free from vibration or live parts. · Keep Mag Cards, PCs and Displays away from the magnet, which is attached to the backside of the instrument. · Do not expose the instrument to the direct sun, high temperature and/or humidity. · Be sure to power off the instrument after use, when the instrument will not be in use for a long period, place it in storage after removing the batteries. · Use a cloth dipped in water or neutral detergent for cleaning the instrument. Do not use abrasives or solvents. 1.5. Measurement Categories (Over-voltage Categories) · To ensure safe operation of measuring instruments IEC 61010, establishes safety standards for various electrical environments, categorized as CAT I to CAT IV, called measurements categories. · Higher-numbered categories correspond to electrical environments with greater momentary energy, so a measuring instrument designed for CAT III environments can endure greater momentary energy than one designed for CAT II. · CATI: Secondary electrical circuits connected to an AC electrical outlet via a transformer or similar device. 5 · 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 over-current protection device (distribution panel). 2. FEATURES · The Data Logger is capable of measuring Load Current and Voltage, logging items include: Voltage RMS, Current RMS, Active Power, Apparent Power, Power Factor, Energy, Instantaneous Voltage Value, Instantaneous Current Value. · Built-in flash, data is not lost when meter is turned off. · Use the external power AC adapter [optional] for long-term recording. · You can view the real-time data of the meter through the Meter-X mobile app. · View the data recorded by the instrument through computer software (included). · Computer software graphically records data. · Three recording modes and two storage modes, which can be set as needed. · The LCD flashes to indicate that a recorded event has been triggered. · Record mode parameters can be set to record at time intervals or can be triggered to record at certain voltage and current parameters. · Measurement and recording of RMS values of AC current [50/60Hz] and AC voltage [50/60Hz]. · When using the meter, use the correct voltage sensor and current clamp sensor, failure to do so may result in damage to the instrument or the circuit under test. 6 3. DESCRIPTION 3.1. Meter Description 1 - LCD Display 2 - External Power Interface 3 - Power/Status Button 4 - Clock/Date, Recording Start/Stop Button 5 - Current/Frequency Switching, Menu Mode Button 6 - PEAK/MAX/MIN switching, Bluetooth Button 7 - Voltage LED Indicator 8 - Current LED Indicator 9 - Voltage Sensor Interface 10 - Current Sensor Interface 11 - USB Interface 12 - Mounting Bracket 13 - Magnet 14 - Battery Cover 15 - AC Current Clamp 16 - Voltage Sensor DAACTPAOLOWGEGRER 7 3.2. Symbols Used on LCD Display 1 - Minimum 2 - Maximum 3 - Date 4 - Time 5 - Time/Date Area: Indicates Time, Date and Time Interval 6 - Bluetooth Indicator 7 - Auto Power Off 8 - Battery 9 - Channel Number & Sensor Indication 10 - Record Mode: Normal, Trigger, Capture 11 - lnstantaneous Peak Mode 12 - Record: Indicates recording is active 13 - Set to stop recording when the recording capacity is full 14 - Set to overwrite old data when the recording capacity is full 15 - Storage capacity full indicator 16 - Voltage effective value display area 17 - Current effective value/frequency display area 3.3. Displayed Message Message Meaning Sensor is not connected/not detected Over-Range Menu: Setting 1: Record mode setting Menu: Setting 2: Record mode parameter setting Menu: Setup 3: Storage Mode Settings Menu: Setting 4: Date Time Settings Menu: Setting 5: Auto Power Off Clear Data Communicating with PC/Connected to PC Turn On Cancel Power Off 8 3.4. Function of Buttons 4. 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 · Insert the Voltage Sensor into the voltage channel, then the LCD will display " " upon successful connection. · Insert the Current Sensor into the current channel, then the LCD will display " " upon successful connection. WARNING: The sensor must be inserted correctly, otherwise the instrument will be damaged, or measurements will be invalid, and the sensors may not be detected. 9 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. Press the Power/Status button to enter the recording mode setting. 3. Press the Time/Date/Start/Stop button to scroll up and the Max/Min/Peak button to scroll down. Use these buttons to adjust the p flashing " " on the LCD. Press the A/HZ/Menu button to set the recording mode settings and exit. e y 4.1.4. Set The Recording Parameters 1. Press the Max/Min/Peak button to scroll down to the setup screen "SET 2". ch 2. Press the Power/Status Button to enter the recording mode time setting. h 4.1.5. Set The Storage Mode 1. Press the Max/Min/Peak/Bluetooth button to scroll down to the setup screen "SET 3". 2. Press the Power/Status Button to enter the storage mode setting. 3. Press the Time/Date/Start/Stop button to scroll up and the Max/Min/Peak/Bluetooth button to scroll down. Use these buttons to adjust the flashing " " on the LCD. 4. Press the Power/Status Button to set the memory mode settings and exit. 10 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. 4. Press the A/HZ/Menu Button to save the time and date settings and exit. 4.1.7. Setting Up Auto Power Off 1. Press the Max/Min/Peak/Bluetooth button to scroll down to the setup screen "SET 5". 2. Press the Power/Status button to enter the auto power off setting. 3. Press the Time/Date/Start/Stop button and the Max/Min/Peak/Bluetooth button to change the auto power off setting. "ON" means the Auto power Off is turned on and "OFF" means the Auto Power Off is turned off. 4. Press the Power/Status button to save the settings and exit, or press the A/HZ/Menu Button to cancel the setup. 4.1.8. Connecting To The Circuit Under Test · Connect the black test lead of the voltage sensor to the neutral line conductor, connect the red test lead to the live line conductor. · The clamp of the current sensor should be clamped over one of the main conductors for the circuit under test. AC POWER DATA LOGGER 11 4.1.9. Start Recording · Settings cannot be changed during recording, check all settings before initiating a recording. · Previously recorded data will be cleared before starting a recording (in this case, the LCD will display " " when you press and hold the Time/Date/Start/Stop button). 1. Check the recording mode. 2. Check the recoding parameters. 3. " " Storage mode. NOTE: If you do not want to clear the previously recorded data, unplug the sensors and transfer the recorded data to your PC · Press the Clock/Date, Recording Start/Stop Button until "REC" stops flashing to indicate the start of recording. · If the previously recorded data is not required, it is recommended to clear the previously recorded data before recording. · " " Indicates that the corresponding sensor is not connected and recording cannot be started. · " "Blinking indicates that the previously recorded data will be cleared before the recording starts. · "FULL"Blinking: The storage space is full and the recording mode cannot be started, please clear the data and try again. · Recording mode parameters cannot be modified during recording, you can press and hold the A/Hz/Menu Button to view the parameters set for the recording mode. · Cannot shut down during recording. · You cannot communicate with PC data during recording. · "REC" The corresponding LED light flashes when recording is active. · "REC" does not allow datalogger data to be read by PC. 4.1.10. Stop Recording · Press the Time/Date/Start/Stop Button until "REC" is no longer displayed. · Remove the voltage sensor leads and remove the current clamp from the circuit. · Disconnect the voltage sensor connector and the current sensor connector. 4.1.11. View Recorded Data Through PC · Make sure the instrument LCD is not displaying "REC". · Make sure the PC has the correct drivers and software installed. · The instrument cannot perform any operations while the instrument is plugged into USB. 12 · 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. · Press the Time/Date/Start/Stop Button and PEAK/MAX/MIN/Bluetooth Button to adjust " " until it flashes, press the Power/Status Button to clear the data and exit. · If " " flashes, pressing will not clear the data, as it is already clear. 5.RECORDING MODES 13 6.BLUETOOTH AND MOBILE APP · Hold down the MAX/MIN/PEAK/BLUETOOTH button to turn Bluetooth on. · Open the Meter-X app on your mobile device to connect via Bluetooth and view data. Meter-X Scan to Download Meter-X 7. PC SOFTWARE AND DRIVERS · Click "Install Package" and follow the instructions to perform the installation process. · During installation you can choose whether to install drivers. · After installing, connect the MT255 via the PC on 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. 8. BATTERY REPLACEMENT WARNING: In order to avoid electrical shock, remove sensors from the instrument when replacing batteries. CAUTION: Do not mix new and old batteries, install batteries in the correct orientation as shown inside the battery compartment, observing correct polarity. · The battery level indicator " " at the top right of the LCD has 1/3 segments remaining, indicating that the battery capacity is insufficient, if it is continuously displayed, please replace the batteries before logging. · Please note that when the battery is depleted, the display will turn off. 1. Loosen the two Battery cover fixing screws on the backside of the instrument and remove the cover. 2. Replace the batteries with new ones (Battery: Alkaline, LR6, 1.5V AAAx4). 3. lnstall the Battery cover, and tighten the screws. 14 9. EXTERNAL POWER SUPPLY (OPTIONAL EXTRA) WARNING · Use only the Power cord supplied with the AC Adapter. · Confirm the voltage of power supply and the rated voltage of the AC 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. · Hold the Plug part of the cord when disconnecting the Power Cord from the outlet to prevent damaging the cord. 9.1. Specification of AC Adapter (Optional) Rated supply voltage, Frequency Supply voltage, Range of Frequency variation Rated output voltage of AC Adapter Rated max Output current of AC Adapter AC 100V / 240V, 50/60Hz AC 90-264V, 45-66Hz DC 9.0V 1.4A · Use the optional AC Adapter for long period recordings. · Installing batteries provides power during power cuts/outages. · Be sure to check the battery level in advance. · Battery indicator shows full level when using the AC Adapter. · Disconnect the Adaptor to properly check the battery level. 15 10. SPECIFICATIONS 10.1. General Specifications Range Function Number of Input Channels Measuring Method Display Low Battery Warning Over-range Indication Auto Power Off Location For Use Temperature & Humidity Range or (Guaranteed Accuracy) Storage Temperature & or Humidity Range Battery Current Consumption Maximum Recording Time Dimensions Weight 2 Channels True RMS Liquid Crystal Display (LCD) Battery lndicator (3 levels) "OL" mark is displayed when exceeding a measuring range Power-off function turns the MT255 off automatically after 10 minutes with no input while not recording. Indoor use, Altitude up to 2000m 23°C ±5°C / Relative Humidity 85% less (Non condensing) 20°C to 60°C / Relative Humidity 85% less (Non condensing) 4 x 1.5V AAA Alkaline Batteries (Optional AC Adapter) Approx. 60mA Approx. 3 days. 114 x 63 x 34mm 248g 10.2. Technical Specifications 10.2.1. AC Voltage Range Resolution Tolerances 1000.0V 0.1V ±(3.5% + 3 digit) Sine wave, Maximum Input: 1000.0AC RMS, 45 to 65Hz. 10.2.2. AC Current Range Resolution Tolerances 400.0A 0.1A ±(3.5% + 3 digit) Sine wave, Maximum Input: 400.0AC RMS, 45 to 65Hz. 16 10.2.3. Active Power Range Resolution Tolerances 9.999kW 99.99kW 400.0kW 0.001kW 0.01kW 0.1kW ±(4% + 10 digit) ±(4% + 1 digit) 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. 10.2.4. Apparent Power (kVA) Range Resolution Tolerances 9.999kVA 99.99kVA 400.0kVA 0.001kVA 0.01kVA 0.1kVA ±(4% + 10 digit) ±(4% + 1 digit) Accuracy defined for: Sine wave, AC V RMS <1000.0V and AC A RMS <400.0A, Frequency 45-65Hz. 10.2.5. Power Factor Range Resolution -1.00 to 1.00 0.01 Tolerances ±3° ± 2digits * Accuracy defined for: Sine wave, 1000.0 V >AC V RMS >10.0V and 400.0A >AC A RMS >2.0A, Frequency 45-65Hz. * The error margin is the greatest when the phase shifts between voltage and current is 90°, maximum ±0.07. 10.2.6. Active Energy (kWh) Range Resolution Tolerances 9.999kWh 0.001kWh 99.99kWh 999.9kWh 0.01kWh 0.1kWh ±(4% + 3 digit) 9999kWh 1kWh 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 will be greater. Ensure that the absolute value of the power factor is around 1.00. 17 MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com www.majortech.com.au sales@major-tech.com info@majortech.com.au