1. හැඳින්වීම
The FRER Q15E2 is a high-efficiency DIN rail mounting multifunction meter designed for three-phase electrical systems. It features a 2-line LCD display for clear readings and provides comprehensive measurement capabilities for various electrical parameters. This manual provides essential information for the safe and effective installation, operation, and maintenance of the Q15E2 meter.
2 ආරක්ෂිත තොරතුරු
Please read and understand all safety instructions before installing, operating, or servicing the FRER Q15E2 meter. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- ස්ථාපනය සහ සේවා සැපයීම සුදුසුකම් ලත් පුද්ගලයින් විසින් පමණක් සිදු කළ යුතුය.
- Ensure all power is disconnected before making any electrical connections.
- මීටරයට හෝ සම්බන්ධිත උපකරණවලට හානි වීම වැළැක්වීම සඳහා සපයා ඇති රූප සටහන් වලට අනුව නිවැරදි රැහැන් සත්යාපනය කරන්න.
- මීටරය හානි වී ඇති බව පෙනේ නම් එය ක්රියාත්මක නොකරන්න.
- සියලුම දේශීය සහ ජාතික විදුලි කේත නිරීක්ෂණය කරන්න.
3. නිෂ්පාදන අවසන්view
The FRER Q15E2 meter is housed in a compact enclosure suitable for DIN rail mounting. It features a clear LCD display, control buttons, and various terminal connections for power, measurement inputs, and communication.

Figure 1: FRER Q15E2 Multifunction Meter. This image displays the FRER Q15E2 meter from an angled front-top perspective. The device is beige-colored with a rectangular 2-line LCD screen labeled 'Q15E2' above it. To the right of the screen are three blue buttons: an arrow pointing right, an arrow pointing up, and an 'ENTER' button. The top of the meter features multiple screw terminals, including those labeled '64 65 B- A+ RS485' for communication, '82 83 + -' for auxiliary power, and '60 61 62 63 OUT 1 OUT 2' for outputs. The bottom of the meter also has numerous screw terminals for electrical connections, including those labeled 'L1', 'L2', 'L3', and 'N'. A warning triangle symbol is visible on the top left corner.
3.1 ප්රධාන සංරචක
- LCD සංදර්ශකය: 2-line display for showing measured values and menu options.
- සංචාලන බොත්තම්: Up, Right, and Enter buttons for menu navigation and parameter selection.
- RS485 සන්නිවේදන වරාය: Terminals B- (64) and A+ (65) for Modbus RTU communication.
- Auxiliary Power Input: Terminals 82 (+) and 83 (-) for meter power supply.
- ඩිජිටල් නිමැවුම්: Terminals 60, 61, 62, 63 for OUT 1 and OUT 2.
- මිනුම් ආදාන: Terminals for connecting voltage (L1, L2, L3, N) and current transformers (not explicitly visible but implied by multifunction meter type).
4. පිහිටුවීම
4.1 සවි කිරීම
The Q15E2 meter is designed for standard 35mm DIN rail mounting. Ensure sufficient space for ventilation and wiring connections.
- Hook the top edge of the meter onto the DIN rail.
- Push the bottom edge of the meter firmly until it clicks into place on the rail.
4.2 රැහැන්
All wiring must be performed with the power supply disconnected. Refer to the wiring diagram provided with the product for specific connection details. The following describes general connections:
- සහායක බලය: Connect the auxiliary power supply to terminals 82 (+) and 83 (-). Verify the voltage matches the meter's specifications.
- වෙළුමtagඊ ආදාන: Connect the phase voltages (L1, L2, L3) and neutral (N) to the corresponding terminals at the bottom of the meter.
- වත්මන් යෙදවුම්: Connect the secondary windings of current transformers (CTs) to the designated current input terminals. Ensure correct polarity.
- RS485 සන්නිවේදනය: Connect the RS485 communication bus to terminals 64 (B-) and 65 (A+).
- ඩිජිටල් නිමැවුම්: Connect external devices to terminals 60-63 for digital output functionality as required.
5. ක්රියාත්මක වීම
5.1 බලය ක්රියාත්මකයි
Once all wiring is complete and verified, apply power to the auxiliary power input. The meter's LCD display will illuminate and show initial readings or a startup sequence.
5.2 සංදර්ශක සංචාලනය
The Q15E2 uses three buttons for navigating through its menus and displaying various parameters:
- ඉහළ ඊතල බොත්තම: Scrolls through parameters or menu options upwards.
- දකුණු ඊතල බොත්තම: Scrolls through parameters or menu options to the right, or enters a submenu.
- ඇතුළු බොත්තම: Confirms a selection or enters a parameter editing mode.
Press the Right Arrow button to cycle through different measurement screens (e.g., Voltage, Current, Power, Energy). Use the Up Arrow button to view different phases or specific values within a screen. Press ENTER to access configuration menus (if enabled).
5.3 පරාමිති වින්යාසය
To configure settings such as CT ratios, communication parameters, or output functions, access the configuration menu. This typically involves pressing and holding the ENTER button for a few seconds or navigating to a specific menu item. Follow the on-screen prompts to adjust parameters. Always save changes before exiting the configuration menu.
6. නඩත්තු කිරීම
The FRER Q15E2 meter is designed for long-term, reliable operation with minimal maintenance.
- පිරිසිදු කිරීම: Keep the meter clean and free from dust. Use a soft, dry cloth for cleaning the display and casinඋල්ෙල්ඛ පිරිසිදු කරන්නන් හෝ ද්රාවක භාවිතා නොකරන්න.
- පරීක්ෂාව: රැහැන් සම්බන්ධතාවල තද බව සහ ගෙවී යාමේ හෝ හානිවීමේ සලකුණු සඳහා වරින් වර පරීක්ෂා කරන්න.
- ස්ථිරාංග යාවත්කාලීන කිරීම්: If firmware updates become available, follow the specific instructions provided by FRER for the update process.
7. දෝශ නිරාකරණය
This section addresses common issues that may arise during the operation of the Q15E2 meter.
7.1 No Display or Blank Screen
- Check Auxiliary Power: Ensure the auxiliary power supply is connected correctly to terminals 82 and 83 and is within the specified voltagඊ පරාසය.
- රැහැන්ගත කිරීම තහවුරු කරන්න: Confirm that all power connections are secure and correctly wired.
7.2 වැරදි කියවීම්
- CT අනුපාතය: Verify that the Current Transformer (CT) ratio configured in the meter matches the physical CTs installed.
- රැහැන් ධ්රැවීයතාව: Check the polarity of current transformer connections. Reversed polarity will result in negative power readings.
- වෙළුමtagඊ සම්බන්ධතා: පරිමාව සහතික කරන්නtage inputs are connected to the correct phases and neutral.
7.3 Communication Issues (RS485)
- රැහැන් ඇදීම: Check RS485 wiring for correct polarity (A+ to A+, B- to B-) and secure connections.
- Baud Rate/Parity: Ensure the meter's communication settings (baud rate, parity, stop bits) match those of the master device.
- උපාංග ලිපිනය: Verify the Modbus address of the meter is unique on the bus.
If issues persist, contact FRER technical support.
8. පිරිවිතර
- ආකෘතිය: Q15E2
- නිෂ්පාදකයා: ෆ්රෙර්
- සංදර්ශකය: 2-රේඛා LCD
- සවි කිරීම: DIN රේල්
- සන්නිවේදනය: RS485 (මොඩ්බස් RTU)
- යෙදවුම්: තුන්-අදියර වෙළුමtagඊ සහ ධාරාව
- නිමැවුම්: Digital outputs (OUT 1, OUT 2)
- මුලින්ම ලබා ගත හැකි: 14 සැප්තැම්බර් 2018
For detailed electrical and environmental specifications, please refer to the product datasheet available on the FRER webඅඩවිය.
9. වගකීම් සහ සහාය
The FRER Q15E2 meter is covered by a manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official FRER webඅඩවිය.
For technical assistance, troubleshooting, or spare parts, please contact FRER customer support or your authorized distributor. When contacting support, please have your meter's model number (Q15E2) and any relevant purchase information ready.

