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Ohaus Precision Analytical Balance EXR423 with 7" Color Touchscreen and Advanced Communication Options
Product Description
The Ohaus Precision Balance EXR423 is a high-accuracy laboratory weighing instrument designed for advanced applications in biotechnology, molecular diagnostics, and clinical research. It features a maximum capacity of 420 g and a readability of 1 mg, making it ideal for tasks requiring fine precision such as basic weighing, parts counting, density determination, formulation, and dynamic weighing.
Key technical specifications include:
- Display: 7-inch TFT 16.7M color touchscreen with glass overlay, enhancing user interface and operational efficiency in laboratory workflows.
- Pan: Stainless steel (SST 316) pan measuring 130 mm x 130 mm, accompanied by an anti-static glass draftshield to minimize environmental disturbances during weighing.
- Calibration: AutoCal™ automatic internal calibration for consistent accuracy without manual interference.
- Performance: Repeatability typical at 1 mg, linearity within ±2 mg, and stabilization time of 1.5 seconds, supporting reliable quantitative analysis in bioprocessing and synthetic biology research.
- Connectivity: Comprehensive communication via USB Host (Type A) x2, USB Device (Type C) x1, Ethernet (RJ45), and RS232 ports; optional Wi-Fi and Bluetooth dongles enable wireless data transfer crucial for biomanufacturing and molecular cloning workflows requiring seamless integration with laboratory information management systems (LIMS).
- Design and Operation: Rugged metal housing with a terminal status light, two touchless sensors, and support for HID connections that eliminate the need for driver installations. The balance supports 4 user management levels and an internal system log of up to 100,000 entries, ensuring traceability and compliance in regulated environments.
- Environmental Range: Operates reliably within 10°C to 30°C and 80% relative humidity non-condensing, suitable for controlled laboratory and production facilities.
This balance is widely adopted in biomedical engineering, cell imaging, and molecular biology laboratories where precision weighing and reliable data management are critical. It is an essential tool for molecular diagnostics and biopharmaceutical production pipelines, supporting methodical sample preparation and component quantitation. The inclusion of multiple units of measurement caters to international laboratory standards, increasing its versatility in global research settings.
Item Stats
Product details
| Maximum Capacity | 420 g |
| Readability | 1 mg |
| Pan Size | 5.1 in x 5.1 in (130 mm x 130 mm) |
| Internal Calibration | AutoCal™ - Automatic |
| Draftshield | Included |
| Dimensions | 15.5 in x 14.6 in x 9 in (393 mm x 370 mm x 230 mm) (LxHxW) |
| Battery Life | Not Applicable |
| Legal for Trade | Not Applicable |
| Auxiliary Display Model | Available as an Accessory |
| Auto Door | Not Applicable |
| Tare Range | To capacity by subtraction |
| Working Environment | 10°C – 30°C, 80%RH, non-condensing (50°F – 86°F, 80%RH, non-condensing) |
| Net Weight | 16.3 lb (7.4 kg) |
| In-Use Cover | Included |
| Communication | USB device; USB host x 2; RS232; Ethernet TCP/IP; WiFi/Bluetooth (available as an accessory) |
| Power | AC Adapter (Included) |
| Units of Measurement | Singapore Tael; Ounce Troy; Pennyweight; Grain; Tical; Custom; Milligram; Momme; Newton; Baht; Taiwan Tael; Gram; Hong Kong Tael; Tola; Mesghal; Carat; Ounce |
| Minimum Weight | 0.14 g |
| Display | 7" colour TFT touchscreen |
| Pan Construction | Stainless Steel |
| Built-in Ionizer | No |
| Stabilization Time | 1.5 s |
| Repeatability, typical | 1 mg |
| Minimum Weight (USP, 0.1%, typical) | 1.4 g |
| Linearity ± | 2 mg |
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