Endress+Hauser CPA510-0210 | pH Buffer Solution 4.01, 250 mL
Endress+Hauser CPA510-0210 pH buffer calibration solution. pH 4.01 (NIST traceable), 250 mL plastic bottle, for pH electrode calibration and verification.
Product Overview
The Endress+Hauser CPA510-0210 is a certified pH buffer solution used for the calibration and verification of pH measuring systems (glass electrodes and combined pH sensors). It has a nominal value of pH 4.01 at 25 °C (NIST/DIN 19266 traceable) and is supplied in a 250 mL polyethylene bottle with a tamper-evident seal. This buffer is part of the standard maintenance consumables for Endress+Hauser pH sensors (e.g., CPS11D, CPF81D series) and third-party electrodes.
Technical Specifications (Chemical & Packaging)
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Parameter
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Specification
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Model / Order Code
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CPA510-0210
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Product Type
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pH Buffer Solution (Standard)
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Nominal pH Value
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4.01 ±0.01 @ 25 °C
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Temperature Coefficient
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Supplied on label (typically -0.002 pH/°C)
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Certification
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NIST / DIN 19266 Traceable
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Container Size
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250 mL
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Container Material
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Polyethylene (PE) Bottle
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Shelf Life (Unopened)
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Typically 24 months from production date
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Storage Condition
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+4 °C ... +25 °C, protect from direct sunlight
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Technical Specifications (Application & Compliance)
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Parameter
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Specification
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Intended Use
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Calibration / Verification of pH Electrodes
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Compatible Sensors
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All Endress+Hauser pH Glass Electrodes & Combined Sensors
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Recommended Calibration
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1-Point (Zero / Slope) or 2-Point (with pH 7.00 / 9.21)
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Color Coding
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Orange (Standard E+H pH Buffer Identification)
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Safety Data Sheet (SDS)
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Available per REACH/CLP
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Key Features
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NIST Traceable Accuracy: Each batch is certified against primary standards, ensuring reliable slope determination during pH sensor calibration.
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Ready-to-Use: No dilution required — pour directly into a calibration cup for quick on-site or lab verification.
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Long Shelf Life: Stable formulation with agents to minimize fungal growth in the bottle.
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System Compatibility: Recommended for use with Endress+Hauser Liquiline transmitters and Memosens pH sensors to maintain measurement traceability.
Applications
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pH Sensor Calibration: Single-point or multi-point calibration of industrial pH electrodes in water & wastewater plants.
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Field Verification: On-site checking of sensor response before critical process measurements.
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Lab & QC Use: Verification of reference pH meters and lab glass electrodes in quality control labs.
Also available: CPA510-0211 (pH 7.00), CPA510-0212 (pH 9.21) for 2-point or 3-point calibration routines.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
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Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
