A&D AD-4212D Microgram Precision Weighing Modules

A&D AD-4212D Microgram Precision Weighing Modules

The A&D AD-4212D Series is a microgram precision weighing module platform designed for advanced laboratory automation, pharmaceutical production, chemical workflows, robotics, OEM equipment, formulation systems, and high-accuracy production weighing.

With readability down to 0.001 mg / 1 µg, internal sensitivity adjustment, RS-232C communication, underhook support, overload protection, and a compact weighing sensor design, the AD-4212D Series is built for demanding applications where standard precision weighing modules are not enough.

Why Choose the A&D AD-4212D Series?

• Microgram readability: Models are available with readability down to 0.001 mg / 1 µg for demanding high-precision workflows.
• Internal sensitivity adjustment: Built-in internal weight supports one-touch sensitivity adjustment without relying only on external calibration weights.
• Automation-ready design: Integrated A-to-D converter supports direct connection to a PC or PLC through the appropriate communication setup.
• RS-232C communication: Standard serial communication supports connection to compatible PCs, controllers, printers, displays, and automation systems.
• Overload protection: Protection mechanism helps reduce risk from vertical and transverse overload caused by actuator movement or equipment malfunction.
• Adjustable response characteristics: Helps users balance weighing speed and stability in environments affected by drafts, vibration, or automation movement.
• Small breeze break included: Helps support stable microgram-level measurements in sensitive weighing environments.
• Underhook support: Supports suspended weighing applications such as magnetic material weighing and density measurement setups.
• Custom pan or receptacle support: Allows users to design and attach a preferred weighing pan or fixture for the application.
• IP65 cleaning protection: IP65 rating applies when the water-resistant cap is placed on the pan support boss after removing the weighing pan and pan support.
• Canadian A&D support: Supplied through A&D Weighing Wholesale Canada, operated by Cambridge Environmental Products, an authorized Canadian A&D master distributor.

Available AD-4212D Models

AD-4212D Series Specifications

Smart Range Model Notes

The AD-4212D-32 is a Smart Range model. It provides microgram readability in the precision range and automatically switches to the standard range when the weighing value exceeds the precision range capacity.

The display returns to the precision range after performing RE-ZERO / tare. This makes the Smart Range design useful for automated applications with tare loads, small containers, or fixtures where fine readability is still needed during part of the weighing process.

Engineering and Integration Notes

The AD-4212D Series is intended for users who need microgram or analytical weighing performance inside a machine, enclosure, or automation system. It is different from a standard bench balance because the weighing sensor can be installed into custom fixtures, compact automation cells, process equipment, and specialized laboratory systems.

For best performance, the module should be installed in a stable mechanical setup with proper vibration control, draft protection, static control, grounding, and suitable sample handling. For robotic or actuator-based loading, the system design should avoid shock loading, side loading, pan impact, over-travel, and contact with surrounding fixtures.

Common Questions About the AD-4212D Weighing Module

What is the A&D AD-4212D used for?

The AD-4212D is used to add microgram-level precision weighing into automated equipment, laboratory automation systems, pharmaceutical workflows, chemical processes, robotic weighing cells, micro-dosing systems, and advanced OEM machinery.

What is the difference between the AD-4212C and AD-4212D?

The AD-4212C Series is a wide-range precision weighing module series with capacities up to 6200 g. The AD-4212D Series is focused on microgram and analytical precision weighing, with models offering readability down to 0.001 mg / 1 µg.

Which AD-4212D model should I choose?

Choose the AD-4212D-33 if you need 1 µg readability across a 32 g capacity. Choose the AD-4212D-32 if you need Smart Range weighing with 1 µg readability in the lower range and 0.01 mg readability up to 32 g. Choose the AD-4212D-302 if you need 320 g capacity with 0.01 mg readability. Choose the AD-4212D-301 if you need 320 g capacity with 0.1 mg readability and faster stabilization.

Does the AD-4212D include internal calibration?

The AD-4212D Series includes an internal sensitivity adjustment weight for one-key accuracy checks and sensitivity adjustment.

Can the AD-4212D connect to a PC or PLC?

Yes. The AD-4212D includes RS-232C communication and can connect to compatible PCs, PLCs, controllers, displays, printers, or data systems using the proper interface setup.

Is the AD-4212D waterproof?

The AD-4212D has an IP65 rating when the water-resistant cap is placed on the pan support boss after the weighing pan and pan support are removed. Application suitability depends on the installation, cleaning method, cabling, environment, and surrounding equipment design.

Is the AD-4212D suitable for robotics?

Yes, the AD-4212D can be used in robotic weighing and automated sample handling systems when the mechanical design protects the weighing module from impact, side loading, over-travel, vibration, drafts, and static.

Does the AD-4212D support underhook weighing?

Yes. The AD-4212D supports underhook weighing, which can be useful for suspended weighing, magnetic material weighing, and density measurement applications.

Where can I buy the A&D AD-4212D in Canada?

A&D Weighing Wholesale Canada supplies AD-4212D microgram precision weighing modules in Canada through Cambridge Environmental Products, an authorized Canadian master distributor for A&D Weighing products.