Apera Instruments LabSen 861 Manuale utente

LabSen® 861 pH Electrode for Complex and Caustic

Solutions

User Manual

LabSen® pH electrodes are made with proprietary sensor technologies and key components from

Switzerland. The LabSen® 861 pH electrode is designed for high-accuracy pH measurement of

complex and caustic solutions (up to 130 °C).

Features

•The special PHY membrane is highly resistant to chemical corrosions, maximizing the

reliability and service life of the electrode in complex and high-temperature solution testing.

•The PTFE ring junction prevents junction clogs from complex chemicals.

•Blue gel inner solution - does not flow and will not generate air bubbles.

•Suitable for high-temperature solutions (up to 130 °C)

•Lead-free glass body

Technical Specifications

Measuring Range

1-13 pH

Temperature Range

0-130 °C

Body Material

Lead-free Glass

Reference

Silver ion trap

Junction

PTFE

Reference Solution

Gel KCL

Soaking Solution

3M KCL

Membrane Type

PHY

Membrane Resistance

< 500MΩ

Electrode Dimension

∅12×120 mm

Connector

BNC

Cable

∅3mm × 1m

How to use

1. Connect the electrode to the BNC connector of your pH meter.

2. Before measuring, twist off the storage bottle cap (see graph on the right),

pull out the electrode and rinse it off with distilled or deionized water.

3. Perform at least a two-point calibration before measuring after connecting

the new electrode to your pH meter.

4. After using, put the electrode back into the storage bottle and twist on the

bottle cap.

Maintenance

1. When not in use, the electrode should be soaked in the storage bottle containing 3M KCL soaking

solution to keep the glass membrane and junction in a healthy condition. Clean the bottle and

replace the soaking solution if it gets contaminated. The electrode should never be stored in pure

water such as deionized or distilled water.

2. The electrode is only as accurate as it is clean. Always thoroughly rinse off the probe before and

after each measurement with pure water in a container or with a wash bottle.

3. For tough contaminants, soak the electrode in Apera cleaning solution (AI1166) for 30 minutes.

Then use a soft brush to remove the contaminants. Afterwards, soak the electrode in 3M KCL

soaking solution for at least 1 hour. Rinse it off, then re-calibrate it before using again.

4. The connector of the electrode should be kept clean and dry. If contaminated, please clean it

with medical cotton and isopropyl alcohol and blow-dry it to prevent short circuit of the electrode

or slow response of the electrode.

5. The electrode should avoid testing strong acid and strong alkali solutions, as well as dehydrating

media such as absolute ethanol and concentrated sulfuric acid. If testing such solutions, the

immersion time should be minimized and the electrode should be carefully cleaned after use.

6. Every pH electrode will eventually age and fail. The typical service life of Apera pH electrodes is

12-24 months depending on the frequency of usage and how well you keep it clean and properly

stored. We recommend replacing your electrode every 12-18 months to ensure the best accuracy.

Warranty

We warrant this electrode to be free from defects in material and workmanship and agree to repair

or replace free of charge, at option of APERA INSTRUMENTS (Europe) GmbH, any malfunctioned

or damaged product attributable to responsibility of APERA INSTRUMENTS (Europe) GmbH for a

period of THREE YEARS (SIX MONTHS for the electrode) from the delivery.

This limited warranty does not cover any damages due to:

Transportation, storage, improper use, failure to follow the product instructions or to perform any

preventive maintenance, modifications, combination or use with any products, materials, processes,

systems or other matter not provided or authorized in writing by us, unauthorized repair, normal wear

and tear, or external causes such as accidents, abuse, or other actions or events beyond our

reasonable control.

APERA INSTRUMENTS (Europe) GmbH

Address: Wilhelm-Muthmann-Str.18

42329 Wuppertal, Germany

Tel: +49 202 51988998

Email: info@aperainst.de

Website: aperainst.de

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