What is the typical lifespan of a pH electrode?

The lifespan of a pH electrode varies significantly based on usage, maintenance, and the types of samples measured, but typically ranges from 6 months to 2 years with proper care.

Are calibration solutions included with used pH meters?

Calibration solutions are consumables and are generally not included with used equipment. Buyers should anticipate purchasing fresh calibration buffers (e.g., pH 4, 7, 10) separately.

What maintenance is required for a digital pH meter?

Regular maintenance includes cleaning the electrode, storing it correctly in appropriate solution, and periodic calibration using certified buffer solutions to ensure accuracy.

Can this unit measure other parameters besides pH?

While primarily a pH meter, some advanced models or those with interchangeable probes may also measure mV (ORP) or temperature. Buyers should confirm specific capabilities with the seller.

Is this unit suitable for field use?

The WPA CD640 is described for laboratory and quality control applications. For field use, buyers typically look for more robust, portable, and often battery-powered units with higher ingress protection ratings.

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Used WPA CD640 Digital PH meter - pH Meters & Sensors

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Vendedor verificado

WPA CD640 Digital PH meter

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

Precio: £ 70

WPA CD640 digital pH meter delivering accurate, reliable pH measurement for routine laboratory and quality control applications.

Cambridgeshire, United Kingdom

A 5773 km

Número de modelo

CD640

Número de referencia

49353664.1607

Machinery Masters View

Información habitual para esta categoría de maquinaria. Confirme siempre los detalles con el vendedor.

Routine laboratory pH measurement in academic and industrial settings.
Quality control checks in food and beverage production.
Environmental monitoring, such as water and wastewater analysis.
Chemical and pharmaceutical research and development.
Educational purposes in science curricula.

Measurement range: Typically 0 to 14 pH, with common models offering resolution to 0.01 pH.
Temperature compensation: Units of this type commonly feature automatic or manual temperature compensation for improved accuracy.
Power supply: Typically mains powered (e.g., 230V AC, 50Hz for UK operation) or battery operated for portability.
Display type: Digital LCD display is standard for clear reading of pH values and temperature.
Calibration points: Commonly supports 1 to 3 point calibration for accurate measurement over the desired range.
Output options: Some models may offer data logging or connectivity options (e.g., RS232) for data transfer.

The lifespan of a pH electrode varies significantly based on usage, maintenance, and the types of samples measured, but typically ranges from 6 months to 2 years with proper care.

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.

Visión general para este tipo de maquinaria

Machinery Masters Intelligence. Orientación general solo para esta categoría de maquinaria; no sustituye a las especificaciones exactas del vendedor. Confirme siempre los detalles con el vendedor.