Ohaus Precision Analytical Balance EXR623 with 31059215 Model Number

The Ohaus Precision Balance EXR623 (model 31059215) is a high-accuracy analytical balance designed for diverse laboratory weighing applications, essential in biotechnology, molecular diagnostics, and bioprocessing workflows. Its features support precision tasks such as basic weighing, parts counting, percent weighing, check weighing, dynamic weighing, formulation, differential weighing, and density determination.

Key specifications include a maximum capacity of 620 g and a readability of 1 mg, making it suitable for applications requiring fine measurement resolution, including synthetic biology experiments and biopharmaceutical production pipelines. The 7-inch TFT 16.7M color touchscreen with glass overlay enhances user interaction and workflow efficiency.

Constructed with a metal housing, a stainless steel 316 (SST 316) weighing pan sized at 130 mm x 130 mm, and an anti-static glass draftshield with two touchless sensors, the balance ensures stable and reliable weighing results with a typical stabilization time of 1.5 seconds and repeatability of 1 mg. The internal AutoCal™ automatic calibration maintains accuracy without manual adjustment.

Connectivity options include dual USB Host (Type A), USB Device (Type C), Ethernet (RJ45), and RS232, with optional Wi-Fi and Bluetooth dongle support, enabling seamless integration into laboratory information management systems (LIMS) and automation setups relevant to clinical diagnostics and biomanufacturing. The balance also supports Time Synchronization NTP and HID mode for driverless computer connection.

Additional functional features include a 4-level user management system, internal system log storing up to 100,000 entries, and a library of 1000 application samples supporting various measurement units commonly used in global laboratory settings, such as grams, ounces, ticals, and carats.

Operating environment ranges between 10°C – 30°C with 80% relative humidity non-condensing, suitable for standard laboratory conditions. The unit weighs 7.4 kg and includes an AC adapter power supply; battery operation is not applicable.

This precision analytical balance is widely used in cell imaging, biotechnology research, and laboratory weight measurement applications, providing dependable performance for bioprocessing quantification and molecular cloning workflows.