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PRODUCT

OpH218 Benchtop pH Meter – Glass Combination Pack

This Combined Pack is composed of the OpH218 pH meter from OrigaLys, a combined pH electrode and a cable to connect the electrode to the pH meter.

The OpH218 is easy to use, it is the perfect pH meter for teaching. Robust and with a 5-year warranty (excluding consumables), it will fit perfectly into an existing fleet of pH meters because its interface is compatible with those of the old Radiometer pH meters.

Elements included in the Combi Pack:

  • An OpH218 pH meter
  • A combined glass pH electrode
  • BNC-S7 cable
Do NOT CHANGE OR REMOVE THIS ELEMENT

Features

  • Easy to learn and simple connections
  • Data transfer (Regressi, Excel and ExAo)
  • Reliable and fast results
  • Durable and repairable

specifications

pH Measurement Ranges  – 9 to 23 pH
Mv Measurement Ranges  ± 2000 mV
Measurement Ranges ° C  – 10 ° C to 110 ° C (Manual or automatic compensation)
PH Resolution  ± 0.01 pH
Mv Resolution  ± 0.1 mV
Resolution ° C  ± 0.1 ° C
Calibration  1 to 3 buffers
Electrode Acceptance Criteria

Slope: 95 to 102%

Zero-pH: 5.80 to 7.50 pH

Non-blocking criteria for calibration but generating a warning

Manufacturers

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Document

OpH2018 pH Meter Brochure

Industries

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Methods

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Spares and accessories for OpH218 Benchtop pH Meter – Glass Combination Pack

pH Electrodes

The pH measurement of an acidic, neutral, basic solution is based on the potential difference between a glass electrode and a reference electrode (Hg, Hg / HgO or Ag / AgCl). This signal is proportional to the activity of the H + ions, according to Nernst’s law.

The combined pH electrode brings together, in one body, a glass electrode and a reference electrode.

Reference Electrodes

A reference electrode has a constant potential regardless of the measurement conditions. The main difference between reference electrodes is the nature of the reference element and the type of electrolytic junction. OrigaLys offers you reference electrodes with Calomel (Hg), Mercuric Oxide (Hg / HgO) and Silver / Silver Chloride (Ag / AgCl).

Temperature Probe

For pH and ionic concentration measurements by selective electrodes and for conductivity measurements, the use of a temperature probe is recommended because the result depends on the measurement temperature.

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