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A&D GX-303A-EC 320g x 0.01g Trade Approved Precision Balance

Our Price: £1,225.35 + VAT (£1,470.42 inc VAT)


Taking Weighing Precision And Protection To New Heights

All the innovative technologies of Apollo are designed to provide functional solutions for real world problems that users face in laboratories or in factories. Now discover what they are, and what precision, protection, performance and productivity really mean to you!

The GX-A series of 13 models with internal calibration function (three 0.0001g readability models, seven 0.001g readability models, six 0.01g readability models and two 0.1g readability models)

Smart SHS®
Smart super hybrid sensor (Smart SHS) realising wide lineup from analytical to high-resolution, high-capacity precision models

Fast stabilization – a combination of a high-stiffness, Roberval-structure spring material and an electromagnetic force restoration mechanism simultaneously realizes fast stabilization and high resolution for efficient, precise weighing. Typical stabilization time is from 1.5 to 2 seconds with the 0.0001g readability models and 1 second with the 0.001g/0.01g/0.1g readability models
Electronically controlled load (ECL) that enables precision management without using an external weight
Flow rate is determined from the weight variation that occurs during a given interval. Many operators time this interval by using a stopwatch. Besides being troublesome and error-prone, this method does not allow precise recording of flow rates that vary from moment to moment because the interval used to divide the weight variation (calculation time) is too long. Cushioning and overload protection mechanism. Apollo can calculate and display/output the mass flow rate (the unit of measure can be selected from g/s, g/m or g/h), or
the volume flow rate (ml/s, ml/m or ml/h) by entering the density of the material – up to 10 densities can be saved to the device

WinCT-FRD (freeware):
This software enables a PC to simultaneously display the weight and flow rate values transmitted from the balance on a two axis graph so that you can see their changes in real time. The graph can be printed out using a printer or saved as an image file, whereas the recorded data can be saved in CSV or TXT format

Tare Memory – the tare value can be saved in non-volatile memory. When this function is activated, the power-on re-zero/tare is turned off

Data Memory – Apollo has a capacity to store up to 200 weighing results + 50 calibration results (all with timestamp), and 50 unit masses to be used in counting mode for cases when no external memory device is available. The stored weighing results or calibration results can be output to a printer or PC in one batch

GLP/GMP/GCP/ISO compliant output

Applications: Weighing, Counting Function, Percentage Function

Interface: RS-232, USB

Weighing Units: mg, g, oz, ozt, ct, mom, dwt, gr, pcs, %, SG, a user-programmable unit

Power Supply: AC Adapter approx. 30 VA

mpn: GX-303A

Plate Size: 128 mm x 128 mm



We endeavour to deliver your goods to you as fast as we can. A large percentage of our orders are delivered in 3 - 5 working days (all mainland UK postcodes except IV, AB and KW) but some goods can take longer if they are delivered direct from the manufacturer or if the item is made to order. Please note, IV, AB and KW postcodes and non-mainland UK including Northern Ireland can take longer. Please give us a call if your order is urgent to verify the delivery time or see if a faster delivery is possible (additional costs may apply for larger orders).

The following delivery charges may apply per order:
  • £15.00 + VAT – Mainland UK
  • £30.00 + VAT – UK non-mainland incl. N. Ireland (5 – 7 working days)
  • £40.00 + VAT – Ireland (7 – 10 working days)


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Frequently Asked Questions

Please see below for answers to frequently asked questions.

A calibration certificate proves the accuracy of your weighing equipment. It is very likely that if accuracy matters in your workplace, certification will be required by your industry regulators. They are straightforward to get hold of though. Just ask our team.

If you are trading or transacting anything by weight, you will probably need to demonstrate your weighing equipment is verified for trade use. This gives your customers confidence in your business and will make sure buying and selling run smoothly. We can help get you with relevant approvals for your equipment.

The answer will vary depending on how your equipment is used. As a minimum, we typically recommend once a year but our team can provide advice based on your individual circumstances.

The International Organization of Legal Metrology (OIML) has established standards for the classification of calibration test weights. Varying from E0 & E1, which are the most accurate to M2 which are commonly used for calibrating platform scales, floor scales and other industrial weighing instruments.

As a rough guide we have listed desired accuracy against class below.

+/- 0.1% – UNclassed Proof Load Test Weights
+/- 0.05% – M3 (Check/calibrate coarse scales)
+/- 0.005% – M1 (Check/calibrate standard scales)
+/- 0.0015% – F2 (Check/calibrate portable balances)
+/- 0.0005% – F1 (Check/calibrate precision balances)
+/- 0.00015% – E2 (Check/calibrate analytical balances)

The choice of weight class depends on the intended use and the level of accuracy required for a particular application. If you’re unsure, talk to our team who can advise you on the right class for your equipment.

If you’re sending a scale back to us for recalibration, it is ideal to use the original packaging. If this is not available choose a sturdy well-padded box to avoid shocks. Where possible, protect the load sensor by removing the weighing pan and any under-pan support and pack these separately in the box. You may be able to use the equipment’s locking pins or screws too.

Do ensure all the paperwork, including your contact details, is included to ensure we can return it once calibration is complete.

Need help? Speak to one of our experts Contact Us

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