SKU
HI62911D

Titanium Body pH Electrode for Plating Baths with DIN Connector HI62911D

180,00 €
Auf Lager
The HI62911D is a titanium body, polymer filled, double reference junction pH electrode with a DIN connector. The flat tip sensing portion of this electrode is made with general purpose glass. The HI62911D also has a PTFE type junction along with a built-in temperature sensor and amplifier within a single probe design. This design consideration is ideal for measuring the pH in plating baths. The HI62911D is designed for use with Hanna’s HI99131 pH meter.
 
  • Titanium Body
  • Built-In Temperature Sensor
  • Recessed, Flat Tip

Hanna Instruments offers a wide variety of pH electrodes that are designed for many different applications. The type of glass used, body material, type of junction, type of reference and electrolyte used are just some of the design considerations.

 

The HI62911D uses general purpose (GP) glass, flat tip bulb, titanium body, and PTFE junction with polymer electrolyte. 

 

General Purpose Glass Formulation

The measurement of pH at very high temperatures is detrimental to the sensitive glass bulb and will shorten the life of it. A pH electrode with general purpose (GP) glass will have a resistance of 100 megaohms at 25°C while the resistance of LT glass is around 50 megaohms at 25°C. As the temperature of the glass decreases in the sample, the resistance of the LT glass will approach that of GP glass. If using GP glass, the resistance would increase above the optimum range, resulting in increased impedance and ultimately affecting the measurement. The HI62911D is suitable to use with samples that measure from 0 to 80°C.

 

Flat Tip Bulb

The recessed flat tip bulb of the HI62911D is easy to clean and prevents solids in solution from collecting on the sensor. Other tip shapes include conic for penetration and spheric for aqueous measurements.

 

Titanium Body

A titanium body increases immunity to electrostatic and magnetic fields. It also allows for strong corrosion resistance, even in seawater. Out titanium bodied electrodes’ outer casing also serves as a matching pin.

 

Matching Pin

A matching pin is a differential measurement technique used to eliminate ground loops and common mode perturbations for the measurement system. In a system without a matching pin, electrical currents in the sample can affect the reference half-cell voltage that is connected via the liquid junction with the sample. In this case, the reference electrode picks up the electromagnetic fields and the measurement of the pH is altered. The matching pin isolates these current/magnetic fields from the reference electrode. The HI62911D titanium body serves as a matching pin for safe precise pH measurements.

 

DIN Connector

The HI62911D uses a DIN connector. This type of connector is generally proprietary to the meters they are supplied with and may not be interchangeable. The HI62911D is designed for use with Hanna’s HI99131 pH meter. Other type of connectors include BNC, screw type, T-type, and 3.5mm to name a few.

 

PTFE Junction

Porous polytetrafluoroethylene (PTFE) is a hydrophobic material that is available with different porosities. This type of junction is often used on electrodes with polymer electrolytes. Because of its chemical advantages, PTFE is widely used in industrial applications.

 

 

Specifications

 

Body Material

titanium body working as matching pin

Reference

double, Ag/AgCl

Junction/Flow rate

PTFE

Electrolyte

3.5M KCl + AgCl

Range pH

0 to 13 Max. pressure 0.1 bar

Tip shape

flat

Diameter

14 mm

Body Length / Overall Length

120 mm / 160 mm

Recommended Operating Temperature

0 to 80°C (32 to 176°F) - GP

Temperature sensor

Yes

Matching Pin

Yes

Amplifier

Yes

Digital

No

Cable

7-pole; 1 m (3.3')

Connection

DIN Applications plating

Alle Preise verstehen sich zuzüglich der gesetzlichen Mehrwertsteuer und zuzüglich Versandkosten, sofern nicht anders angegeben. Hanna Instruments GmbH — Rosenkranzgasse, 6 — 8020 Graz (Österreich) — USt ATU69124217 © 2021 Alle Rechte vorbehalten