A&D BM Series Micro and Semi-Micro Balances – High Precision Laboratory Weighing

Our Price: £3,059.00 – £9,697.00 + VAT (£3,670.80 - £11,636.40 inc VAT)

Description

A&D BM Series Micro & Semi-Micro Balances – Ultra-High Precision for Demanding Laboratory Applications

The A&D BM Series offers outstanding accuracy and stability, making it the ideal choice for professionals needing a micro balance or semi-micro balance that performs flawlessly in even the most challenging environments. Designed for ultra-fine measurements down to 0.001 mg, the BM series combines advanced weighing technology with intelligent environmental compensation and robust build quality.

Exceptional Accuracy in the Microgram Range

The series includes four high-performance micro balances:

BM-5
BM-5D
BM-20
BM-22

Each model features a readability of 0.001 mg, making them ideal for micro-analysis, environmental testing, and any application requiring sub-milligram precision.

For users who require top-tier precision without the full micro balance specification, the BM range also includes semi-micro balances, offering 0.01 mg readability. These models deliver outstanding stability and speed, ideal for high-accuracy routine work and analytical weighing.

Key Features & Benefits

Built-In Fanless Ionizer
Instantly neutralises static electricity on samples and containers, without disturbing delicate materials.
Precision Environmental Control
Embedded sensors for temperature, humidity, and atmospheric pressure maintain optimal weighing conditions.
Smart Calibration & Repeatability Testing
Automatic self-calibration compensates for temperature changes. Internal weight repeatability testing ensures ongoing precision.
Anti-Static Breeze Break
Standard on micro models, with coated glass and compact design to shield from airflow and external vibrations.
Wide Range of Weighing Units & Modes
Supports grams, milligrams, carats, specific gravity, percent mode, counting (with ACAI), and more.
Data Connectivity & Compliance
RS-232C and Quick USB included, with optional Ethernet. Fully compliant with GLP/GMP/GCP/ISO standards.
Efficient Operation
Interlocking sliding doors and reverse-backlit LCD allow comfortable, precise operation in any lab environment.

Included with Every Micro Balance

AD-1676 Tabletop Breeze Break (BM-5/5D/20/22)
AD-1688 Weighing Data Logger
AD-1689 Calibration Tweezers
AX-BM-033 Protective Dust Cover
WinCT Software for Data Transfer & Analysis

Optional accessories include:

Pipette Accuracy Testing Kit
Density Determination Kit (BM-252/200/300/500)

Typical Applications

These high-precision micro and semi-micro balances are trusted by:

Pharmaceutical labs conducting trace analysis
Environmental scientists weighing fine particulates
Researchers requiring ultra-fine mass determination
Quality control teams measuring filters, powders, or chemicals
Laboratories conducting pipette calibration or density testing

Precision You Can Rely On

Whether you need a semi-micro balance for routine analytical work or a micro balance for ultra-trace measurements, the A&D BM series delivers exceptional performance, long-term stability, and intelligent automation to support the most exacting laboratory standards.

Weighing Units: mg, g, oz, ozt, ct, mom, dwt, gr, pcs, %, and SG (density mode)

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

Shipping Dimensions: 690 (W) x 860 (D) x 630 (H) mm, 690 (W) x 860 (D) x 630 (H) mm

On-site demonstration available for this product. Please enquire.

Downloads

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 BM Series Micro and Semi-Micro Balances – High Precision Laboratory Weighing

Description

A&D BM Series Micro & Semi-Micro Balances – Ultra-High Precision for Demanding Laboratory Applications