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Details on how to clean the analytical balance using appropriate materials and methods.
Provides detailed technical specifications for various models, including capacity, accuracy, and dimensions.
Configuration details for the RS232 serial communication interface and data output settings.
Explanation of the function of each key and symbol on the balance's control panel.
Adjusts the balance sensitivity for optimal performance in different environmental conditions.
Configures the weighing speed, balancing responsiveness with stability for accurate measurements.
Sets the frequency and method for data transmission from the balance.
Diagram and brief description of the main structural components of the analytical balance.
Guidelines for selecting an optimal environment to ensure balance performance and longevity.
Instructions for checking the package contents and inspecting for any transport damage.
Procedure for ensuring the balance is perfectly level using the integrated bubble level.
Steps for powering on the balance, warm-up period, and initial weighing mode entry.
Detailed steps for calibrating the balance using the provided calibration weight.
The U.S. Solid Analytical Balance, specifically the USS-DBS models, is a precision instrument designed for accurate mass measurements in laboratory and industrial settings. It utilizes electromagnetic force compensation technology to deliver fast and reliable results.
The primary function of this device is to precisely measure the mass of various substances. It operates by converting the force exerted by a mass on its pan into an electrical signal, which is then processed and displayed as a numerical weight. The balance is equipped with a high-precision electromagnetic force balance sensor, ensuring a high degree of accuracy. It supports multiple units of measure, including grams (g), milligrams (mg), carats (ct), and ounces (oz), with grams being the default unit. Beyond simple weighing, the balance also offers a piece counting function, allowing users to determine the number of individual items based on their collective weight. This is particularly useful for inventory management or when dealing with numerous small components. The device features a full capacity taring function, which enables users to zero out the weight of a container, ensuring that only the net weight of the substance being measured is displayed. Overload protection is integrated to prevent damage to the sensor if an object heavier than the maximum capacity is placed on the pan.
The analytical balance is designed for user-friendly operation with a clear backlit LCD display that shows the weight and various settings. The control panel includes distinct buttons for "ON" (power on), "OFF" (power off), "TAR" (tare), "CAL" (calibration), and "PRT" (print/menu). A bubble level is incorporated to ensure the balance is perfectly leveled on its surface, which is crucial for accurate readings. Height-adjustable feet further aid in achieving proper leveling.
Before initial use, or after moving the balance, it is essential to adjust the level by turning the adjustable feet until the bubble is centered. The balance requires a warm-up period of approximately 30 minutes after being turned on to achieve optimal performance and stability. Calibration is a critical step for maintaining accuracy and should be performed after the warm-up period. The calibration process involves placing a known calibration weight (included with the balance) on the pan and following the on-screen prompts.
The taring function is straightforward: place a receptacle on the pan, press "TAR," and the display will reset to zero, allowing subsequent additions to be measured accurately. If the receptacle is removed, a negative weight will be displayed, which can be zeroed again by pressing "TAR." Weighing unit selection is done via the "PRT" key, cycling through the available units.
For piece counting, the user first enters the piece counting mode, selects a reference number of pieces (e.g., 10, 25, or 50), places that exact number of pieces on the pan, and then presses "CAL." The balance will then display the corresponding number of pieces. It's important that the individual pieces have a consistent weight and that their weight is not less than the balance's readability.
The balance also offers internal settings for sensitivity, weighing speed, and data output. Sensitivity settings (ASD-0 to ASD-3) allow adjustment for ideal or poor environmental conditions. Weighing speed settings (INT-0 to INT-3) control how quickly the balance stabilizes a reading. Data output settings (PRT-0 to PRT-4) manage how data is transmitted, including options for manual output, timed intervals, or continuous output. These settings are accessed by pressing and holding the "ON" button, then using the "PRT" button to navigate and select options, and finally "TAR" to confirm and return to weighing mode.
The device includes an RS232 interface for connecting to a PC or printer, enabling data logging and printing of measurement results. The baud rate for this interface can be configured through the internal settings.
To ensure the best results and longevity of the analytical balance, careful and continuous maintenance is recommended. The manual emphasizes keeping the balance clean and dry. It advises against using scourers or abrasive substances on metallic parts, including stainless steel and aluminum, as these can damage the balance and reduce its effectiveness. Instead, a lint-free cloth dampened with soapy water, free of abrasive or corrosive materials, should be used for cleaning.
Environmental considerations are crucial for the balance's performance and durability. It should be placed on a solid, stable, plain flat surface, away from sources of vibration, airflow (like air conditioners, fans, or open windows), direct sunlight, radiation, and electromagnetic waves. Dusty or overly dry environments should also be avoided to prevent electrical issues. The balance should not be used in areas with explosive, combustible, or corrosive gases.
Users are cautioned against disassembling the balance themselves, as this can void the warranty and pose a risk of injury. In case of electrical issues or fire, the balance should be unplugged immediately. If any liquid comes into contact with the electrical parts, the device should be disconnected and sent for service. Only original components and supplies should be used. When the balance is not in use for extended periods, it should be disconnected from the power supply. The manual also highlights the importance of using the correct power supply and voltage.
General| Model | USS-DBS Series |
|---|---|
| Auto-off | Yes |
| Tare Function | Yes |
| Weighing Units | g, oz, lb |
| Calibration | External Calibration |
| Power Source | AC Adapter |
| Platform Size | Varies depending on the model |
| Material | Stainless Steel |
| Interface | RS232 |
| Readability | 0.1g - 1g |
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