1. Киришүү
The MYPIN LM8-RRD is a digital weight controller designed to work with various pressure and weight sensors. It is suitable for applications requiring weight control, auto accumulation, and mean calculations for up/down batch control. This weighing controller features dual LED nixie tube digits for clear display and offers data/peak value holding functions. It also includes capabilities for clearing zero and PV modification. The instrument provides isolated auxiliary power (typically 5V/80mA) to directly connect 1-4 load cells.
2. Продукт бүтүп калдыview

Сүрөт 2.1: Алдыңкы view of the MYPIN LM8-RRD Load Cell Indicator. It features a clear dual LED display for process value (PV) and set value (SV), along with alarm indicators (AL1, AL2, AL3) and unit indicators (g, T, Kg).
Video 2.1: Demonstration of the MYPIN LM8-RRD Load Cell Indicator controlling a liquid filling process, showing real-time weight measurement and control.
3. Техникалык шарттар
| Өзгөчөлүк | Description |
|---|---|
| Модел | LM8-RRD |
| Материал | ABS |
| Өлчөмү | 48*48*80мм |
| Hole Size | 45 * 91 мм |
| Дисплей | LED Display (Red & Green LED, 4 Digital) |
| Электр камсыздоо | 110V/220V AC/DC |
| Тактык | 0.2%F.S±2dgt |
| Энергияны керектөө | 5VA |
| Sampling Rate | секундасына ≤16 жолу |
| Киргизүү | mV (Load Cell), 1-4 pcs Load Cell (Analog Sensor) |
| Чыгуу | 2 РЕЛЕ |
| Көмөкчү кубат | DC 5V |
| Түс | Кара |
| Келип чыккан жери | Материк Кытай |

Figure 3.1: Model and Specification Options. This table details various configurations for MYPIN load cell controllers, including dimensions, power supply, analog output, alarm outputs (AL1, AL2, AL3), communication interfaces, auxiliary power, and input signal types.
4. Орнотуу

4.1-сүрөт: Арткы view of the MYPIN LM8-RRD Load Cell Indicator. This image shows the wiring terminals and important caution notes. The input is for 1-4 PCS LOAD CELL, with an accuracy of 0.2%F.S±2d. Power is 220V/110V AC. The wiring diagram indicates connections for AC 220V/110V, AL1, AL2, COM, and LOAD CELL (EXC+5V, SG, mV+, mV-).

4.2-сүрөт: Детальдуу view of the terminal block, showing numbered connections for wiring.
4.1. Электр зымдары боюнча нускамалар
The MYPIN LM8-RRD Load Cell Indicator requires careful wiring for proper operation. Refer to the diagram on the back of the unit (Figure 4.1) for specific connections.
- Электр камсыздоо: Connect AC 220V or 110V to the 'L' and 'N' terminals as indicated.
- Жүктөө клетка туташуу: The unit supports 1-4 load cells. Connect the load cell wires to the 'EXC+5V', 'SG', 'mV+', and 'mV-' terminals. Ensure correct polarity.
- Сигнал чыгаруулары: The 'AL1', 'AL2', and 'COM' terminals are for connecting external alarm devices or relays. The unit provides 2 relay outputs.
4.2. Important Safety and Installation Cautions
- Электр шокунун алдын алуу: Do not remove the cover. There are no user-serviceable parts inside. Refer all servicing to qualified service personnel.
- Экологиялык шарттар: Avoid installing the controller in environments with heavy dust or metal filings, as this may cause damage.
- Интерференция: Do not install the unit near power supplies, heavy load equipment, or strong magnetic fields.
- Кабель багыттоо: Avoid running power cables in parallel with high voltage, heavy current-carrying conductors, as this may induce high voltages into the unit. If parallel routing is unavoidable, ensure power cables are properly shielded and grounded, or run them inside a metal conduit grounded at one end only.
- Ызы-чуу чыпкалоо: In extremely noisy environments, use a noise filter on the power line.
- Байланыш: If connecting to a computer, use a serial port connection.
5. Иштөө нускамалары
The MYPIN LM8-RRD Load Cell Indicator features dual LED displays for Process Value (PV) and Set Value (SV). The front panel includes 'SET', '<<RST', 'Up Arrow', and 'Down Arrow' buttons for configuration and operation.
5.1. Негизги функциялар
- Салмакты көзөмөлдөө: For precise measurement and control of weight.
- Auto Accumulation: Automatically sums up measured values.
- Mean Calculation: Calculates the average of measured values for batch control.
- Data/Peak Value Holding: Allows users to hold the current data or the peak value recorded.
- Clearing Zero: Resets the display to zero.
- PV Modification: Allows adjustment of the process value.
Refer to the detailed user manual included in the package for specific programming and calibration instructions.
6. Техникалык тейлөө
To ensure optimal performance and longevity of your MYPIN LM8-RRD Load Cell Indicator, observe the following maintenance guidelines:
- Тазалоо: Keep the device clean and free from dust and metal filings. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Курчап турган чөйрө: Reiterate avoiding installation near strong magnetic fields, power supplies, or heavy load equipment.
- Байланыштары: Regularly check all wiring connections for security and integrity. Loose connections can lead to erratic readings or device malfunction.
- Электрдик ызы-чуу: If operating in a noisy electrical environment, ensure that noise filters are properly installed and functioning on the power line, and that the system is correctly grounded.
7. Кыйынчылыктарды
If you encounter issues with your MYPIN LM8-RRD Load Cell Indicator, consider the following steps:
- Erratic/Incorrect Readings: Verify all load cell connections and ensure they are securely fastened. Check for any damage to the load cell or its wiring.
- No Display/Unresponsive: Ensure the device is receiving power and that the power supply voltage matches the device's requirements (110V/220V AC). Check for any visible damage to the unit or power cable.
- Калибрлөө маселелери: If readings are consistently off, recalibration may be necessary. Refer to the detailed user manual for calibration procedures.
For complex issues that cannot be resolved with these steps, refer to the comprehensive user manual or contact technical support.
8. Колдонуучунун кеңештери
- The LM8-RRD indicator is designed to work with analog sensors, specifically mV (Load Cell) inputs. Ensure your load cells are compatible with this input type for proper functionality.
9. Пакеттин мазмуну
The MYPIN LM8-RRD Load Cell Indicator package includes:
- 1 x Weighing Controller (LM8-RRD)
- 2 х Монтаждык кашаа
- 1 x User Manual
10. Кепилдик жана колдоо
The MYPIN LM8-RRD Load Cell Indicator comes with a 1-year warranty. For customized support or technical assistance, please refer to the contact information provided in the full user manual or on the manufacturer's webсайт.





