Apera Instruments LabSen 851-1 Bedienungsanleitung

LabSen® 851-1 pH Electrode

User Manual

Storage bottle

Storage bottle cap

Rubber plug on the

refilling hole

BNC connector

Measuring tip

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 851-1

Glass-body pH Electrode is designed for pH measurement of viscous samples such as skincare

products, cosmetics, and coatings.

Features

•Proprietary sensor technology and premium materials from Switzerland

•LabSen conical glass membrane ideal for viscous liquid

•Silver Ion Trap Reference System + Protelyte reference solution

•The blue gel electrolyte eliminating the chance of any air bubbles inside the sensor

•Lead-free glass body

Technical Specifications

Measuring Range

0 - 14 pH

Temperature Range

0 - 100°C

Membrane Type

Body Material

Lead-free Glass

Reference

Silver Ion Trap

Junction

Ceramic*3

Reference Solution

Protelyte

Soaking Solution

Protelyte

Membrane Resistance

<150 MΩ

Electrode Dimension

(Φ12×120) mm

Connector

BNC

Cable

Φ3×1m

How to use

1. Insert the blue BNC connector of the electrode to the BNC socket of your pH

meter while twisting clockwise until it’s locked.

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. Unplug the blue rubber plug to maintain a smooth electrolyte flow.

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

new electrode to your pH meter.

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

cap, and plug in the refilling hole.

Maintenance

1. When not in use, the electrode should be soaked in the storage bottle containing Protelyte solution

(SKU: AI1190) 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 reference solution will run low as you use the electrode. Whenever the solution level falls to 1/2

height of the electrode, add Protelyte solution (SKU: AI1190) to the refilling hole (unplug the blue

rubber plug) using a syringe or pipette.

3. 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.

4. 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 Protelyte solution

(SKU: AI1190) for at least 1 hour. Rinse it off, then re-calibrate it before using again.

5. 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.

6. 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.

7. 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 performance.

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, LLC, any malfunctioned or damaged product

attributable to responsibility of APERA INSTRUMENTS, LLC for a period of SIX MONTHS from the

delivery.

This limited warranty does NOT cover any damages due to:

Accidental damage, transportation, storage, improper use, failure to follow the product instructions or to

perform any preventive maintenance, unauthorized repair or modifications, normal wear and tear, or other

external causes or actions beyond our reasonable control.

To get the fastest warranty fulfillment, go to support.aperainst.com and click “New Support Ticket” on

the upper right corner. Type your email in the requester field, “Warranty” in the Subject field, and then

input the following information in the description field:

•Your full name

•Product model that needs warranty fulfillment

•Serial number of the product (can be found on the back sticker of the tester body)

•What problem or issue you had experienced with the product

•Attach a photo of your proof of purchase

•Attach a photo of the problematic product

Then click Submit. One of our customer care specialists will help you fulfill the warranty within one

business day.

APERA INSTRUMENTS, LLC

Address: 6656 Busch Blvd, Columbus, OH 43229 Phone: 1-614-285-3080

Web site: ape ra inst .com Email: inf o@aperainst.com

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