CY220 Precision Electronic Balance

Overview

The CY220 Precision Electronic Balance is a high-reliability, general-purpose analytical balance engineered for routine laboratory weighing tasks requiring consistent readability of 0.001 g and stable performance across diverse environmental conditions. Designed and manufactured in the United States, this balance operates on electromagnetic force compensation (EMFC) principle—ensuring rapid stabilization, minimal drift, and long-term metrological integrity. Its robust aluminum-coated housing provides mechanical rigidity and resistance to ambient thermal gradients, supporting reproducible measurements in QC labs, academic teaching environments, and production line check-weighing stations. The device meets foundational metrological requirements for traceable mass measurement under ISO/IEC 17025-aligned workflows and supports audit-ready documentation when integrated into GLP- or GMP-regulated operations.

Key Features

• High-contrast LCD display with Advanced Eye Protection (AEP) backlighting—reducing visual fatigue during extended use without compromising contrast or viewing angle.
• Standard RS232 serial interface for seamless integration with LIMS, ERP, or custom data acquisition systems; compatible with standard ASCII command protocols.
• Automatic external calibration function triggered via front-panel key sequence—eliminates manual calibration weight handling while maintaining NIST-traceable accuracy.
• Full-capacity tare functionality with programmable stability threshold and digital filtering levels—enabling optimization for dynamic samples (e.g., hygroscopic or volatile substances).
• Multi-unit weighing support: g, mg, ct (carat), oz (avoirdupois ounce), dwt (pennyweight), mom (metric ounce), and GN (grain)—facilitating cross-disciplinary use in pharmaceutical, jewelry, and materials science applications.
• Aluminum-painted chassis and stainless-steel pan construction—offering corrosion resistance, ease of decontamination, and dimensional stability over time.

Sample Compatibility & Compliance

The CY220 accommodates standard solid and granular samples within its 128 × 128 mm weighing pan area. An optional bottom-loading hook (included as standard) enables below-pan density determination or magnetic susceptibility measurements using auxiliary fixtures. The balance complies with ISO 9001:2015 quality management system requirements and incorporates design elements aligned with Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP) documentation standards—including timestamped calibration logs, user-accessible calibration history, and non-volatile memory retention of configuration settings. While not FDA 21 CFR Part 11–certified out-of-the-box, its RS232 output and deterministic response behavior support validated integration into Part 11–compliant environments when paired with appropriate software controls and audit trail modules.

Software & Data Management

Data export is performed via ASCII-formatted RS232 transmission at 9600 baud, 8N1 configuration, supporting real-time streaming to spreadsheet applications or dedicated balance software. Each transmitted record includes timestamp (if enabled via external clock sync), net weight, unit code, and status flag (e.g., “STABLE”, “UNSTABLE”, “OVERLOAD”). Internal memory stores up to 99 calibration events with date/time stamps and operator ID fields—accessible via menu navigation. Firmware supports user-defined stability criteria (fast/medium/slow mode) and adjustable digital filtering to suppress vibration-induced noise in non-isolated lab benches.

Applications

• Routine sample preparation and reagent dispensing in chemistry and biology laboratories.
• Quality control checks for tablet weight variation per USP and EP 2.9.5 guidelines.
• Raw material verification in food and nutraceutical manufacturing.
• Student experiments in undergraduate physics and analytical chemistry courses.
• Inventory reconciliation and component counting by weight in electronics assembly lines.
• Pre-weighing of catalysts, polymers, or ceramic precursors prior to thermal analysis (TGA/DSC) or rheological testing.

FAQ

What is the maximum sample height clearance beneath the balance pan?
The internal chamber height is 145 mm (H), allowing clearance for most standard volumetric flasks, beakers, or custom fixtures mounted on the optional bottom hook.
Does the CY220 support internal calibration?
No—the CY220 uses automatic external calibration only. For internal calibration capability, consider the CYxxx-C series variants (e.g., CY360C, CY510C).
Is the RS232 interface optically isolated?
No—RS232 communication is electrically coupled. For electrically noisy industrial environments, use a grounded USB-to-RS232 converter with surge suppression.
Can the balance operate on 110 V AC power?
The standard unit ships with a fixed 230 V / 50 Hz power supply. A 110 V / 60 Hz version is available upon special order with modified internal transformer and fuse rating.
How often should external calibration be performed?
Per ISO/IEC 17025 and manufacturer recommendations, perform external calibration before first use, after relocation, following significant temperature shifts (>5 °C), and at least once per shift in regulated environments where measurement uncertainty must remain ≤0.002 g.