Name: A&D HR-A / HR-AZ Series: Compact Analytical Balances
SKU: 7269
Availability: instock
Rating: 5 (1 reviews)

A&D HR-A / HR-AZ Series: Compact Analytical Balances

Our Price: £775.00 – £1,343.00 + VAT (£930.00 - £1,611.60 inc VAT)

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Description

Reliable 0.1mg Analytical Balances for Laboratory Precision

Reliable 0.1mg Analytical Balances for Laboratory Precision The A&D HR-A / HR-AZ Series is fast, accurate, and cost-effective. This is reliable analytical weighing in a compact footprint. Designed for laboratories, research environments, and quality control applications, these balances combine intuitive operation with high-level precision. This makes them ideal for users who require reliable results without excessive complexity.

With capacities ranging from 62g to 252g and a readability of 0.1mg, the HR-A and HR-AZ models allow companies a wide variety of analytical applications. All while maintaining A&D’s renowned standards for durability and performance. The HR-AZ variant includes automatic internal calibration for enhanced convenience and compliance.

Key Features

1mg Readability: Precise measurements for analytical and micro-analytical applications.
Compact Footprint: Less bench space with a B5-size footprint (198mm x 294mm), ideal for busy laboratories.
Fast Stabilisation Time: Results in approximately 2 seconds, boosting productivity during repetitive tasks.
Built-in Internal Calibration (HR-AZ only): Automatic calibration without user intervention.
One-Touch Cal™ Function: Manual calibration (HR-A only) with easy access via a single button.
RS-232C Interface: Connectivity for data logging and integration with lab software.
Anti-static Breeze Break: Removable glass draft shield minimises static interference and provides easy access for cleaning and sample handling.
GLP/GMP/GCP/ISO Compliance: Audit-ready documentation with full calibration and weighing logs.

Typical Applications

Pharmaceutical Analysis
Chemical Testing Labs
Academic Research
Quality Control in Manufacturing
Cosmetics and Fragrance Formulation
Forensic Science

Why Choose the HR-A / HR-AZ Series?

By focusing on the features that matter most: speed, accuracy, and usability, the HR-A / HR-AZ balances from A&D are designed to perform without the faff. Whether you’re working in a tightly packed lab or performing routine analyses, this series offers exceptional value at an accessible price point. The choice between external (HR-A) and automatic internal calibration (HR-AZ) gives users flexibility depending on regulatory and operational needs.

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

Power Supply: 100V – 240V AC Adaptor – 11VA

Shipping Dimensions: 511 (W) x 437 (D) x 648 (H) mm

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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:

£12.00 + VAT – Mainland UK
£30.00 + VAT – UK non-mainland

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Frequently Asked Questions

Please see below for answers to frequently asked questions.

Are readability and accuracy the same thing?

No, although they are both useful measures of weighing equipment performance. Readability refers to the smallest increment of weight that scales or balances will display. A readability of 0.5g, for example, means the scale would display an item of 10.503g’s weight as 10.5g and an item of 10.805g as 11.0g.

Accuracy is a measure of the possible difference between the displayed weight and an item’s real weight. It is often displayed as a percentage. An accuracy of +/- 1% means the scale could measure 100g as anywhere between 99g and 101g.

Do I need a calibration certificate?

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.

Do I need a "Verified For Trade Use" scale?

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.

How often should I have my scales calibrated?

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.

Which class of test weight should I use?

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.

How to pack a scale for shipping

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.

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A&D HR-A / HR-AZ Series: Compact Analytical Balances

Description