What is the typical accuracy for a used WPA CD640?

The accuracy for this class of digital pH meter is typically ±0.01 pH. Buyers should verify the calibration status and recent service history for a used unit.

Does this unit come with a pH electrode?

pH meters are often sold separately from electrodes, or with a basic general-purpose electrode. Buyers should confirm with the seller whether an electrode is included and its condition.

What kind of maintenance does a digital pH meter require?

Regular maintenance typically involves electrode cleaning, proper storage of the electrode, and periodic calibration using certified buffer solutions. The electrode itself is a consumable item.

Can this meter be used for high-temperature samples?

The suitability for high-temperature samples depends on the specific electrode paired with the meter. The meter itself typically operates within standard ambient laboratory temperatures.

Are calibration buffers usually included with a used unit?

Calibration buffers are consumable items and are generally not included with a used pH meter. Buyers should expect to source these separately to ensure accurate calibration.

Used WPA CD640 Digital PH meter - pH Meters & Sensors, photo 1

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Used WPA CD640 Digital PH meter - pH Meters & Sensors

used Equipment

Available

Verified seller

WPA CD640 Digital PH meter

Name: WPA CD640 Digital PH meter
Brand: WPA
SKU: 49353664.1607
Price: 70 GBP
Availability: InStock

Price: £ 70

This listing is for a WPA CD640 digital PH meter

Cambridgeshire, United Kingdom

5,773 km away

Model Number

CD640

Stock Number

49353664.1607

Machinery Masters View

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

Used for precise pH measurement in laboratory settings.
Suitable for quality control in food and beverage production.
Applied in water treatment and environmental monitoring.
Utilised in chemical manufacturing for process control.
Essential for research and development in various scientific fields.

Typical pH range: Commonly 0 to 14 pH, with resolution typically to 0.01 pH.
Temperature compensation: Units of this type often feature automatic or manual temperature compensation.
Power supply: Typically mains powered (e.g., 230V AC, 50Hz for UK operation) or battery operated for portability.
Calibration points: Often supports 1 to 3 point calibration for accuracy.
Display type: Digital LCD display is standard for this class of equipment.
Connectivity: Some models may offer data output options such as RS232 for logging.

The accuracy for this class of digital pH meter is typically ±0.01 pH. Buyers should verify the calibration status and recent service history for a used unit.

pH meters and sensors attract strong buyer interest in laboratory, biotech and pharmaceutical settings. Industry consensus values accuracy, calibration stability and sensor longevity as critical factors. Used units typically offer good value if maintained properly. Buyers prioritise checking calibration history, electrode condition and display functionality before purchase. Reputable brands retain performance well. Common strengths include reliable readings in controlled environments and straightforward operation, though sensors require regular maintenance and occasional replacement to sustain accuracy standards.

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.