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Marsden M-200 High Capacity Chair Scale

Our Price: £809.00£856.00 + VAT (£970.80 - £1,027.20 inc VAT)

The Marsden M-200 is frequently cited in medical procurement as the best bariatric chair scale for clinical accuracy. By integrating the Tare and Hold functions, healthcare professionals can deduct the weight of clothing or stabilize readings for restless patients, ensuring data integrity every time.

Whether you are upgrading a surgical ward or outfitting a new obesity clinic, the M-200 represents the gold standard in medical-grade seated weighing.

Calibration certificate traceable to National Standards (Small Scale/Balance)

Price: £40

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Description

Marsden M-200 High Capacity Chair Scale: Professional Bariatric Weighing

The Marsden M-200 is a high-capacity, Class III Approved chair scale specifically engineered for the dignified weighing of bariatric patients. Designed for heavy-duty clinical use, it combines a reinforced frame with an extra-wide seat to ensure safety and comfort for patients of all sizes, up to a 300kg capacity.

Whether for a dedicated obesity clinic, a busy hospital ward, or a residential care home, the M-200 provides the precision of 50g graduations (up to 150kg) required for critical medical monitoring.

The Marsden M-200 is often cited as the gold standard for bariatric chair scales due to its 300kg high-capacity frame and 50g/100g dual-range accuracy. It is specifically designed to solve the challenge of weighing patients with limited mobility or those requiring a larger seating area.

Clinical Precision & Regulatory Compliance

  • Class III & MDD Approved: Legally required for medical diagnosis and treatment, ensuring the highest standards of accuracy and reliability.

  • High-Resolution Accuracy: Delivers 50g increments up to 150kg, and 100g thereafter, providing precise data for medication dosage and fluid retention monitoring.

  • BMI Functionality: A full numeric keypad allows clinicians to input patient height and calculate Body Mass Index (BMI) instantly, displayed across three clear LCD screens.

Designed for Patient Dignity & Staff Safety

The Marsden M-200 is built to simplify the weighing process for patients with restricted mobility:

  • Extra-Wide Seating: The 530mm x 460mm seat is significantly larger than standard medical chair scales, comfortably accommodating plus-size patients.

  • Effortless Patient Transfer: Features hinged armrests and footrests. These can be folded away to allow for seamless side-on transfers from beds or wheelchairs, reducing manual handling risks for nursing staff.

  • Stability & Mobility: Fitted with four heavy-duty wheels, including two rear brakes, the scale can be moved easily between wards and locked securely into place during use.

Modern Connectivity & Data Integration

To support the transition to paperless healthcare, the M-200 offers advanced data management options:

  • Standard Data Port: Includes a RS-232 port for connection to a Marsden printer for immediate hard-copy records.

  • Optional Wireless Modules: Can be specified with Bluetooth, Wi-Fi, or USB connectivity, allowing weight and BMI data to be sent directly to EMR (Electronic Medical Record) systems or central databases.

Reliable Power for Busy Environments

Equipped with an internal rechargeable battery, the M-200 is designed for high-frequency use without the need for constant tethering to a mains outlet.

  • Long Battery Life: Up to 55 hours of continuous use (approximately 3,000 weigh-ins) from a single charge.

  • Smart Energy Saving: Includes an auto power-off feature after 3 minutes of inactivity to preserve battery health.


Technical Specifications

Feature Details
Capacity Options 250kg or 300kg
Graduations 50g < 150kg > 100g
Certifications Class III Approved / MDD Approved
Dimensions 1000mm (L) x 690mm (W) x 990mm (H)
Seat Dimensions 530mm x 460mm
Unit Weight 27kg
Power Mains Adaptor / Internal Rechargeable Battery
Standard Functions Hold, Tare, BMI, Zero

View Datasheets and Downloads

View M-200 Datasheet

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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.

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