Sartorius CPA34000 Precision Balance

Overview

The Sartorius CPA34000 Precision Balance is an ISO/GLP-compliant laboratory balance engineered for high-throughput, routine mass measurement tasks in quality control, manufacturing support, and academic research environments. Designed and manufactured in Germany, it operates on electromagnetic force compensation principle—leveraging Sartorius’ patented monolithic weighing sensor architecture—to deliver robust mechanical stability, long-term drift resistance, and consistent metrological performance under variable environmental conditions. With a 34 kg capacity and 1 g readability, the CPA34000 bridges the functional gap between analytical and top-loading balances, offering traceable accuracy without requiring draft enclosures or vibration isolation tables. Its isoCAL intelligent internal calibration system—activated via single-key operation—automatically initiates temperature-compensated recalibration using motor-driven internal reference masses, ensuring continuous compliance with ISO 9001, ISO/IEC 17025, and FDA 21 CFR Part 11 data integrity requirements when paired with audit-trail-enabled software.

Key Features

• Monolithic sensor design: Eliminates mechanical hysteresis and improves long-term stability across thermal gradients.
• isoCAL automatic internal calibration: Fully motorized, temperature-triggered recalibration with real-time verification of linearity and repeatability.
• Backlit LCD display with 16 mm digit height: Ensures legibility under low ambient light or high-glare lab conditions; supports multi-language UI (English, German, French, Spanish, Chinese).
• RS-232C serial interface: Enables bidirectional communication with PCs, LIMS, or PLC systems; supports ASCII and SICS protocols for seamless data export.
• GLP-compliant data handling: Built-in timestamping, operator ID prompting (via optional keyboard), and configurable print/log settings for full traceability.
• Dedicated application modes: Includes percentage weighing, parts counting, animal weighing (dynamic averaging), net/gross summation, and SI/metric unit conversion—all accessible without external software.
• Robust mechanical construction: Stainless steel pan (400 × 300 mm), IP42-rated housing, and reinforced base geometry minimize sensitivity to floor vibrations and air currents.

Sample Compatibility & Compliance

The CPA34000 accommodates bulk solids, packaged goods, reaction vessels, and irregularly shaped samples up to 34 kg—ideal for formulation checks, raw material receipt inspection, and batch release testing. Its large pan surface allows stable placement of wide-bottom containers or stacked sample trays. All firmware and hardware configurations meet EU Measuring Instruments Directive (MID) Annex MI-001 for non-automatic weighing instruments. Documentation output—including calibration certificates, weighing records, and adjustment logs—adheres to ISO 17025 clause 7.7 and USP requirements for balance verification. When connected to Sartorius LabX software or third-party validated systems, the device supports electronic signature, role-based access control, and 21 CFR Part 11 audit trails.

Software & Data Management

The CPA34000 natively supports direct integration with Sartorius YDP20-0CE thermal printer for GLP-compliant hardcopy records—including date/time stamp, operator ID, balance ID, and net/gross/tare values. For digital workflows, its RS-232C port enables real-time data streaming into LabX, Excel (via DDE or COM automation), or custom MES platforms. Firmware v3.2+ includes configurable auto-send triggers (e.g., post-stabilization, post-tare) and error-code logging for root-cause analysis during QA investigations. All internal memory stores ≥1,000 weighing events with timestamps, even during power interruption—retained via non-volatile EEPROM.

Applications

• Pharmaceutical: Excipient dispensing verification, tablet weight uniformity pre-screening, and container closure integrity test sample preparation.
• Food & Beverage: Batch ingredient dosing, yield calculation, and packaging weight compliance per EU Regulation (EC) No 76/211.
• Chemical Manufacturing: Catalyst charge verification, drum filling control, and SDS-mandated gross/net labeling.
• Academic Research: Soil/sediment sample partitioning, biomass quantification, and teaching labs requiring rugged, intuitive instrumentation.
• Materials Testing: Pre-test specimen conditioning checks prior to tensile/compression analysis per ASTM E4 and ISO 7500-1.

FAQ

Does the CPA34000 require external calibration weights?
No—isoCAL provides fully automated internal calibration using built-in motor-driven reference masses. External weights are only required for periodic verification or regulatory audits.
Can the balance be integrated into a networked LIMS environment?
Yes—via RS-232C to serial-to-Ethernet converter or native USB-to-serial adapters, enabling TCP/IP forwarding to central servers running validated middleware.
Is the display readable under fluorescent or sunlight exposure?
Yes—the high-contrast backlit LCD maintains >95% contrast ratio across 0–40°C ambient range and is optically optimized to suppress glare from overhead lighting.
What is the warm-up time to achieve full specification accuracy?
Less than 30 minutes after power-on at 23°C ±5°C; isoCAL performs initial stabilization check within first 5 minutes.
Does the CPA34000 support dynamic weighing (e.g., live animal measurement)?
Yes—its animal weighing mode applies adaptive filtering to suppress motion-induced noise while maintaining ±0.5 g repeatability at 1-second update rate.