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Sansui Vibra AJ Series Precision Balance: Simple, Profound, and Uncompromisingly Accurate
In the worlds of laboratory research, precision manufacturing, and fine jewelry, the demands on a weighing balance are absolute. It must be fast, stable, and consistently accurate. It must be intuitive to use, yet powerful enough for complex tasks. And it must be a reliable partner you can trust for years. UP Scales is proud to introduce a balance that embodies this philosophy of "Simple is the Best": the Sansui Vibra AJ Series Precision Balance.
Engineered by Shinko Denshi and brought to you under the trusted Sansui Vibra brand, the AJ Series represents the pinnacle of precision weighing technology. At its heart lies an innovative tuning-fork frequency sensing system—a technology renowned for its inherent accuracy, exceptional stability, and long-term reliability. Unlike conventional load cells or electromagnetic sensors, the tuning-fork system measures mass by gauging minute changes in oscillation frequency, digitally outputting readings with an extremely small margin of error that is maintained over time.
Capacity 3200g and readabilities 0.01g (10mg), the AJ Series offers a model for virtually every precision application. Whether you need a high-resolution balance with a draft shield for the lab, or a rugged, portable unit for the factory floor, the Sansui Vibra AJ Series delivers simple, profound, and uncompromising performance.
Why the Sansui Vibra AJ Series is the Smart Choice for Precision Professionals
The AJ Series is built on the principle that true sophistication lies in simplicity. Its benefits are clear and compelling:
- Tuning-Fork Technology for Unmatched Precision: The core innovation is the double-ended tuning fork (DETF) vibrator. This sensor measures force by detecting frequency changes when a load is applied, digitally outputting the reading. It does not rely on material distortion, electromagnetic force, or heavy power consumption. The result is a balance with extremely low inherent error and precision that can be maintained for a very long time without frequent calibration.
- Incredible Speed and Stability: Quick response and stable indication are critical in precise measurement. The AJ Series delivers stabilization times as fast as 2.0 seconds for many models. This means you get a reliable reading almost instantly, dramatically improving workflow efficiency in busy environments.
- Versatile Weighing Modes for Every Task: The balance isn't just for simple weighing. With easy mode switching via a function key, you can access:
- Parts Counting: For inventory management of small, identical components.
- Percentage Weighing: For formulation, quality control, and check-weighing.
- Carat Measurement: Specifically for jewelers, providing direct readouts in carats.
- Compact, Portable, and User-Friendly Design: The space-saving housing allows installation even in cramped workspaces. The large LCD with bright white backlight (16.5mm digit height) ensures clear, comfortable reading even in dark locations. With the optional rechargeable battery, you can take the balance anywhere, ensuring continuous operation.
- Built for Global Standards: The AJ Series meets rigorous international requirements, with models approved to OIML and EU Class II and Class I standards (depending on the model). It is a balance you can trust for legal-for-trade applications where applicable.
The Core Technology: Tuning-Fork Frequency Sensing Explained
What makes the tuning-fork sensor so precise? Unlike load cell systems that measure the physical bending of a metal piece, or electromagnetic systems that require constant power to maintain a force, the tuning-fork sensor operates on a different principle. It uses a long, narrow vibrator that oscillates at a specific frequency. When a load is applied, the frequency changes. This change is measured and directly converted into a digital weight reading.
The key advantages of this system are:
- No A/D Converter Needed: The output is inherently digital, eliminating a potential source of error.
- Extremely Low Power Consumption: Ideal for battery operation.
- Exceptional Long-Term Stability: The sensor does not suffer from the same kind of fatigue or drift as strain-gauge based sensors, maintaining its calibration integrity over a longer period.
Common Specifications Across the Series
| Feature | Specification |
|---|---|
| Measuring System | Tuning-Fork Frequency Sensing Technology |
| Display | LCD with white backlight (16.5 mm digit height) |
| Tare Range | From zero up to full weighing capacity |
| Overload Indication | “o-Err” displayed when load exceeds full capacity + 9 digits |
| Operating Conditions | Temperature: 5–35°C (E Type), 10–30°C (CE Type); Humidity: Up to 80% RH (non-condensing) |
| Power Supply | AC Adapter (Input: 100–240 VAC / Output: 12 VDC) |
| Data Interface | Standard RS-232C (DIN 5-pin) |
| Weighing Units | g, ct, oz, lb, ozt, dwt, GN, tl (Hong Kong / Taiwan / Singapore / Malaysia), momme, tola |
Ideal Applications
The versatility of the Sansui Vibra AJ Series makes it indispensable across numerous fields:
- Laboratories: Precise weighing of chemicals, samples, and reagents in R&D and QC.
- Jewelry & Gemology: High-resolution carat measurement for diamonds, gemstones, and precious metals.
- Pharmaceuticals: Accurate formulation and compounding.
- Manufacturing & Industry: Parts counting, quality control, and check-weighing.
- Education: Teaching precise measurement techniques in universities and schools.
The Sansui Vibra Assurance: A Legacy of Precision
Shinko Denshi Co., Ltd. has been a leader in precision weighing technology for decades. The Sansui Vibra brand is synonymous with quality, innovation, and reliability worldwide. The AJ Series is a testament to this legacy, offering "Simple but Profound" solutions that professionals trust.
Your Partner for Precision: Why Choose UP Scales?
As your authorized reseller, UP Scales is committed to providing you with the best products and unparalleled support.
- Genuine Product Guarantee: You receive 100% authentic Sansui Vibra balances with full manufacturer support.
- Expert Guidance: We help you select the perfect AJ Series model based on your specific capacity, readability, and feature requirements.
- Comprehensive Support: From unboxing and setup to application advice, our team is here to ensure your complete satisfaction.
Capacity
3200gm
Readability
10mg (0.01gm)
Repeatability
0.01gm
Non-Linearity
±0.01gm
Stabilization Time
3.0 Sec - 3.5 Sec
Pan Size
180×160mm
Calibration
External
Output
RS232C
Dimension
265×192×87mm
Weight
Approx. 2.8 kg
Power Source
AC adapter Input 100-230VAC / Output 6VDC
Government Calibration Verification Certificate & Stamping (Legal Metrology Department)
Yes
NABL Certificate
Yes (On Request)
The tuning-fork sensor offers exceptional long-term stability and precision without the drift or power consumption associated with other technologies. It provides a quick, stable reading (approx. 2.5 seconds) and maintains its accuracy over a long lifespan, making it a reliable, low-maintenance instrument.
Yes, depending on your local regulations. The AJ-3200E model offers high precision (0.01g) suitable for such applications. The "CE" certified models (AJ-3200CE) meet the requirements of European standards for legal-for-trade use. You should verify the specific acceptance of this accuracy class with your local Legal Metrology department.
It's very simple. Just press the function key on the balance's keypad to cycle through the available modes: Weighing → Parts Counting → Percentage Weighing → Carat (and back). The current mode is clearly indicated on the LCD display.
The standard RS232C interface allows you to connect the balance directly to a computer for data collection (using software like VIBRA's RTS), to a compatible printer (like the CBM-910Ⅱ) for printing weight slips, or to an external satellite display (SDI) for remote viewing of the weight.
Absolutely. Its compact footprint (265mm deep) makes it easy to relocate on a cart. For true cord-free portability, you can add the optional AJBT(M) rechargeable battery, which provides up to 24 hours of operation on a single charge, allowing you to take precise weighing anywhere it's needed.