OHAUS EXR Series Precision Analytical Balances with Draft Shield and Internal Calibration

The OHAUS EXR Series Precision Analytical Balances deliver advanced weighing performance tailored for demanding laboratory environments, including biotechnology, pharmaceuticals, and analytical chemistry. Equipped with an anti-static glass draft shield, these balances provide enhanced stability and accuracy for lightweight and draught-sensitive samples, critical in molecular diagnostics and bioprocessing.

Key Features:

• Internal AutoCal™ calibration ensures continuous accuracy without external weights, integral for compliance in regulated laboratories.
• Fast stabilization times (typically 1–2 seconds) optimize throughput in sample preparation and formulation workflows.
• Large 7" color TFT display with protective glass offers an intuitive, ergonomic user interface with digital leveling to streamline setup.
• Touchless sensor technology allows hands-free operation to minimize contamination risk and preserve control integrity.
• Comprehensive connectivity options: includes USB Host (Type A)×2, USB Device (Type C)×1, Ethernet (RJ45), RS232, and optional Wi-Fi or Bluetooth dongles supporting HID connections without driver installation, facilitating seamless data integration in biomanufacturing and research IT infrastructures.

Model Variants:

• Capacities from 220g to 1200g with readability at 1 mg for standard models (EXR223, EXR423, EXR623, EXR1203).
• High-resolution verification (Class I certified) models with *M* suffix (EXR223M, EXR423M, EXR623M, EXR1203M) offer 0.01 mg readability, tailored for legally compliant weighing in clinical diagnostics and synthetic biology research.

Applications:

Widely used for precision weighing tasks including basic weighing, piece counting, check weighing, percent weighing, density determination, and formulation. Ideal for quality control, process monitoring, and compliance testing in biotechnology, pharmaceutical production, and academic research environments. Essential for workflows requiring high repeatability and traceability such as molecular cloning sample prep and bioprocess analytics.

The OHAUS EXR balances are recognized for their reliability and precision, making them a critical instrument in laboratory metrology, advanced materials research, and biopharmaceutical production pipelines.