Shanghai Xinzhuang Instrument Co., Ltd. is committed to a business philosophy centered around technological innovation and advancement. The company continuously contributes to the progress of society through strategic innovations and the development of cutting-edge products. As an integrated enterprise specializing in R&D, manufacturing, and sales, we pride ourselves on delivering high-quality instruments and exceptional customer service. We welcome inquiries and look forward to serving you.
**Instrument Installation**
1. **Working Environment**:
Electronic balances are precision instruments that require careful placement. Ensure the installation area is stable, flat, and free from vibrations. Avoid direct sunlight, heat sources, and humid conditions. Also, prevent air currents from directly affecting the balance.
2. **Balance Installation**:
Follow the manufacturer's manual carefully during installation to ensure proper setup and functionality.
**Using the Balance**
1. **Level Adjustment**:
Before turning on the balance, check the bubble level located at the back of the device. If it is not centered, adjust the leveling screws—raise the left side and lower the right side until the bubble is centered.
2. **Preheating**:
After initial power-on or after a long period of inactivity, allow at least 30 minutes for the balance to warm up. Avoid frequent power cycles in normal use to maintain accuracy.
3. **Weighing Procedure**:
- Press the ON/OFF button to activate the display.
- Wait for the self-test to complete, indicated by the display showing "0".
- Place weighing paper on the pan and press the TARE button to tare the weight.
- Once the display reads "0", place the sample on the pan and record the reading.
- After weighing, turn off the display using the ON/OFF button.
**Important Notes**
1. **Understanding the Display Status**:
- "O" in the upper right corner means the display is off.
- "O" in the lower left indicates the instrument is in standby mode and ready for use.
- A diamond logo in the upper left shows the microprocessor is performing a function and cannot accept other tasks.
2. **Calibration and Movement**:
The balance is calibrated at the time of installation. Avoid moving it frequently, as this may require recalibration.
3. **Proper Usage**:
Never weigh directly without using weighing paper. Always clean the balance after each use to prevent contamination and ensure accurate readings.
**Troubleshooting Common Issues**
1. **Inaccurate Readings**:
Check if the internal code value is stable, ensure there is no friction in the sensor, verify power supply stability, and confirm the op-amp circuit is functioning properly. Adjust the weight distribution of the four-legged pan if necessary. Further analysis or calibration may be required.
2. **Cannot Return to Zero After Weighing**:
Check if the sensor output is within standard range. If not, adjust the sensor’s adjustable resistor. If the issue persists, inspect the sensor for faults. If the sensor output is normal, the problem may lie in the amplifier or A/D conversion circuit.
3. **Failure to Start**:
First, check for issues with the fuse, power switch, wiring, and voltage. Verify the transformer input and output. If the device has a battery, try powering it with AC only. Then, check the rectifier, voltage regulator, and display driver circuits. If all are okay, test the processor and auxiliary circuits for damage.
4. **Display Shows Garbled Text**:
Replace the original display board with a known good one. If the display works, the issue is with the display circuit. Otherwise, check the drive circuit. Finally, verify that the processor’s output pins are within the correct range.
5. **Button Not Responding**:
Replace the button with a new one and test. If the new button works, the original may have poor contact. Check for open circuits, virtual soldering, or poor connections between the button and the CPU. Also, check for short circuits or open circuits involving the diode and resistor on the CPU board.
6. **Not Returning to Zero Under Load**:
This could indicate a change in the small signal input range. Follow the zero-return procedure. If the issue remains, first check the power supply and A/D circuit. Then, inspect the sensor output.
7. **Pointer Jumps When Turned On**:
If the distance between the knife edge and the knife pad is uneven, loosen the screw in front of the left arm of the horizontal bracket. Adjust the height of the small pillar manually until the pointer stabilizes.
**Recommended Models**
Several well-known brands are commonly used in laboratories:
- **Mettler Toledo (Switzerland)**: Popular models include AL104, AL204, XP105DU, XS205DU, AB135-S/F. The AL and PL series are made in China, while the AB and XP series are imported.
- **Sartorius (Germany)**: Most components are imported. Common models include BT25S, BSA124S-CW, BSA224S, and others. Prices have increased slightly since 2009, but the ALC series remains unchanged.
- **Ohaus (USA)**: Known for quality and affordability, the CP series is popular. Models like CP214 and CP114 are widely used. Ohaus is also recommended for its reliability.
- **Shimadzu (Japan)**: Offers a variety of reliable electronic balances.
- **Domestic Brands**: Models such as FA1004 and FA2004 are commonly used in China.
For more information or assistance, feel free to reach out to Shanghai Xinzhuang Instrument Co., Ltd. Our professional team is here to help. Welcome to our company!
Ceramic Bird Feeder
Material: Ceramic bird feeders are made from clay that is kiln-fired to create a durable and weather-resistant container. Ceramic is an excellent choice for bird feeders because it is sturdy, easy to clean, and provides insulation to keep bird food dry and fresh.
Design: Ceramic bird feeders come in a variety of designs, ranging from simple and traditional to elaborate and decorative. They may feature whimsical shapes like animals, flowers, or geometric patterns, adding charm and personality to your garden. Some feeders are hand-painted with vibrant colors and intricate details to enhance their visual appeal.
Construction: The construction of a ceramic bird feeder typically consists of a main feeding chamber or tray where birdseed is placed, surrounded by perches or platforms for birds to land and feed. The feeder may have multiple feeding ports or openings to accommodate several birds at once.
Size: Ceramic bird feeders come in different sizes to accommodate various bird species and feeding preferences. Some feeders are compact and designed for small birds like finches or chickadees, while others are larger and can accommodate larger birds like cardinals or blue jays.
Hanging or Mounting: Ceramic bird feeders can be hung from trees, hooks, or bird feeder poles using built-in loops or chains. Some feeders come with mounting brackets or stakes for secure installation in the ground or on a flat surface like a deck or patio.
Easy to Clean: Ceramic bird feeders are easy to clean and maintain, requiring only occasional rinsing with water and mild soap to remove dirt, debris, and bird droppings. It's essential to clean the feeder regularly to prevent the buildup of mold or bacteria that can harm birds.
Weather Resistance: Ceramic bird feeders are generally weather-resistant and can withstand exposure to sunlight, rain, and freezing temperatures without cracking or fading. However, it's a good idea to bring the feeder indoors during extreme weather conditions to prolong its lifespan.
Attractiveness to Birds: The design and placement of a ceramic bird feeder can influence its attractiveness to birds. Placing the feeder in a quiet, sheltered area with nearby vegetation for cover can help attract a variety of bird species. Additionally, using high-quality birdseed or offering a variety of food options can entice birds to visit the feeder regularly.
Overall, a ceramic bird feeder is a charming and practical addition to any garden or outdoor space, providing a welcoming environment for birds while adding beauty and interest to your landscape.
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