Description
NA 800/S7 is a sodium ion-selective combined glass electrode fitted with an S7 plug head for laboratory ion measurement. The electrode incorporates a reference system filled with 3 mol/l KCl electrolyte and covers a measuring range from 0,01 mg/l to 23,000 mg/l sodium, corresponding to approximately 0,000001 mol/l to 1 mol/l. Designed as a combination electrode, it integrates the sensing and reference half-cells in a single body, simplifying setup for sodium determinations in aqueous samples. For correct operation the electrode requires standard solution ES/Na, ionic-strength adjuster ISA/Na, and a connecting cable of type AS/DIN or AS/BNC. Supplied as a single unit from manufacturer WTW – a Xylem brand, the NA 800/S7 supports routine and research applications in water analysis, quality control and process laboratories where selective sodium measurement is required. The S7 plug-head interface allows flexible cable choice and straightforward connection to compatible meters, making the electrode a practical component of ion-selective electrode workflows.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Electrode type: Sodium ion-selective combined glass electrode
- Connector: S7 plug head
- Reference electrolyte: 3 mol/l KCl
- Measuring range: 0,01 mg/l to 23,000 mg/l Na
- EAN: 4064664001205
- Technical Information Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about NA 800/S7, Sodium ion selective glass alectrode with S7 plug head, reference ele
What is this article?
NA 800/S7, Sodium ion selective glass alectrode with S7 plug head, reference ele is the article on this page. Luminix Health distributes WTW - a Xylem brand for laboratory use. It sits in pH electrodes & sensors, inside pH & electrochemistry, in Lab instruments.
A pH electrode is a glass membrane and a reference. It is a consumable: the glass ages, the junction clogs, and the reading drifts. A refillable electrode and a gel electrode differ in how they are maintained. The connector has to match the meter. The electrode, not the meter, is usually what is wrong.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is pH electrodes & sensors. The catalogue is Lab instruments.
Shelves beside this one are pH meters, Conductivity meters & cells, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.