What is the significance of the 'accuracy class' for a calibration weight?

The accuracy class (e.g., OIML F1, M1) defines the maximum permissible error for the weight. A higher class (e.g., F1) indicates a tighter tolerance and is suitable for calibrating more precise balances.

Is a calibration certificate included with used weights?

While new weights typically come with a certificate, used weights may or may not. Buyers should confirm with the seller if a current, traceable calibration certificate is provided or if re-certification is required.

How should calibration weights be handled and stored?

Weights should be handled with clean, lint-free gloves or forceps to prevent contamination and damage. They should be stored in a protective case in a stable environment to maintain their accuracy.

Can this 500g weight be used to calibrate any balance?

This 500g weight is suitable for calibrating balances with a capacity that includes or exceeds 500g. The appropriate accuracy class of the weight must match or exceed the precision requirements of the balance being calibrated.

What maintenance is required for calibration weights?

Regular cleaning with appropriate solvents and re-calibration at specified intervals (typically annually) by an accredited laboratory are essential to maintain the weight's accuracy and traceability.

Used Ohaus 500g Weight - Calibration Weights & Kits, photo 1

Used Ohaus 500g Weight - Calibration Weights & Kits, photo 2

Used Ohaus 500g Weight - Calibration Weights & Kits, photo 3

Used Ohaus 500g Weight - Calibration Weights & Kits

used Equipment

Available

Verified seller

Ohaus 500g Weight

Name: Ohaus 500g Weight
Brand: Ohaus
SKU: 40268
Price: 50 GBP
Availability: InStock

Price: £ 50

This listing is for a Ohaus 500g Weight.

The unit is in full working condition and is ready for immediate release.

Cambridgeshire, United Kingdom

5,773 km away

Model Number

500g

Stock Number

40268

Machinery Masters View

Typical context for this category of equipment. Always confirm specifics with the seller.

Used for routine calibration and verification of laboratory balances and scales.
Essential for quality control processes in manufacturing to ensure accurate weighing.
Utilised in research and development settings for precise measurement validation.
Applicable in educational institutions for teaching metrology and practical laboratory skills.

Nominal Mass: This specific unit is a 500g weight. Other units in this category typically range from milligrams to multiple kilograms.
Material: Commonly made from stainless steel or brass, often with a protective coating for durability and stability.
Accuracy Class: Typically manufactured to OIML (International Organization of Legal Metrology) or ASTM (American Society for Testing and Materials) standards, such as E2, F1, F2, M1, M2, or M3, indicating the permissible error.
Construction: Solid, one-piece construction is common for stability and long-term mass integrity.
Traceability: Often supplied with a calibration certificate traceable to national standards, which is crucial for accreditation purposes.

The accuracy class (e.g., OIML F1, M1) defines the maximum permissible error for the weight. A higher class (e.g., F1) indicates a tighter tolerance and is suitable for calibrating more precise balances.

Calibration weights and kits are essential for maintaining measurement accuracy across laboratories, biotech and pharmaceutical facilities. Buyers typically prioritise certified traceability, material quality and condition of surface finish when purchasing used sets. Industry sentiment favours equipment from established manufacturers with documented calibration history. Common strengths include durability and long operational lifespan when properly stored. When buying used, verify calibration certificates, inspect for corrosion or damage, and confirm all weights in the set are present and accounted for.

General overview for this equipment type

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.