pH glass electrode SenTix® 91 | refillable | with temperature sensor

SKU: 103695

Option

Request a Quote

Description

The SenTix® 91 pH electrode has a length of 170 mm and, with its high-quality glass shaft, refillable 3 mol/l KCl liquid electrolyte and platinum diaphragm, is suitable for demanding measurements in the laboratory. The platinum wire diaphragm offers optimum electrolyte flow without clogging and the liquid electrolyte offers fast response times. The electrode can also be used in difficult samples. The spherical shape of the diaphragm offers constant measurement quality and low resistance due to the large surface area. This electrode has an NTC 30 kOhm temperature sensor.

The SenTix® 91 is particularly suitable for the following applications:

Chemical:	Industrial:
Diluted acids Emulsions/suspensions	Cooling water, dyeing solutions, electroplating baths Paper extract
Water & Environmental:	Beverages:
Saline solutions Swimming pool water Groundwater Lake water, surface water, sea water Drinking water Soil extract	Beer, soda/lemonade Fruit juice, vegetable juice, wine Mineral water Milk
Cosmetics & Cleaning:	Food:
Hair color Mouthwash Household cleaners	Coffee extract Vinegar
Pharma, Medical, Bio:
Enzyme solutions, gastric juice, infusion solutions, protein-containing liquids, serum, tris buffer solutions, urine

All pH electrodes

Our buffer solutions

Here you can find out more about choosing the right pH electrode and answers to your questions:

Blog: Which pH electrode do I need?

Specifications

SenTix^®	91
Order no.	103695
Membrane shape	Spheric
Shaft	Glass
Diaphragm	Platinum wire
Temp. sensor	NTC 30 kOhm
Reference electrolyte	KCl 3 mol/l Ag+ free
Membrane resistance	<600 MΩ
Measuring range	0 … 14 pH
Temp. range	0 … 100 °C
Shaft length	170 mm
Shaft diameter	12 mm
Connection	1 m fixed cable with water-proof DIN and 4 mm banana plug

Accessories

WTW - Technical Buffer solutions

Technische Pufferlösungen für WTW Messgeräte mit pH-Funktion

WTW - Electrolytes and cleaning solutions

Consumables for pH electrodes

Stands

Stands for various applications

Standard (DIN/NIST) buffer solutions

Standard pH buffer solutions according DIN/NIST

Downloads

Manuals

SenTix® 5x, 6x, 8x, 9x, L, MIC(-B/D) (English)
pH combined electrodes,
Operating Manual
Download file

SenTix® 5x, 6x, 8x, 9x, L, MIC(-B/D) (French)
pH combined electrodes,
Operating manual
Download file

SenTix® 5x, 6x, 8x, 9x, L, MIC(-B/D) (Spanish)
pH combined electrodes,
Operating manual
Download file
Handbooks / Whitepaper
pH Handbook (English)
A guide with helpful practical tips

Contents:

Basic concepts of potentiometry and pH measurement

Structure of pH electrodes

Potentiometry of the pH electrode

Buffer solutions and safety in pH measurement

Measuring equipment and measuring set-up

Practical pH measurement

Recommendations for use, maintenance and care of electrode

Download file
Flyers / Brochures / Catalogues
Brochure: Sensors for Field & Lab (EN)

Content:

pH Electrodes

ORP Electrodes

Conductivity Cells

Oxygen Sensors

Ion-selective Electrodes

pH Electrodes Guide

Sensors - Accessories

Download file