Hanna Instruments

Scientific Equipment

HI-1615D Intelligent pH Electrode for General Use

HI-1615D Intelligent pH Electrode for General Use

Hanna HI-1615D Intelligent pH Electrode for General Use

HI-1615D Intelligent pH Electrode for General Use

Ideal for general laboratory use
In Stock
£142.00 (exc. VAT) £170.40 (inc. VAT)

The HI-1615D is a glass bodied pH electrode for general laboratory use.

This electrode has a 1m cable and a DIN connector.

Din Connection

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HI-1615D Intelligent pH Electrode for General Use information

Hanna's extended description

The HI-1615D is a glass bodied pH electrode for general laboratory use.

This electrode has a 1m cable and a DIN connector.


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 HI-1615D is suitable to use with samples that measure from 20 to 40°C.


Spherical Bulb

The spherical bulb is for general purpose use. Other tip shapes include conic for penetration and flat tip for surface measurements.


Glass Body

The glass body is ideal for laboratory use. The glass is resistant to many harsh chemicals and is easily cleaned. The glass body also allows for a fast transfer of heat to the internal reference electrolyte. The mV generated by the reference cell is temperature dependent. The faster the electrode reaches equilibrium, the steadier the reference potential.


Single Ceramic Junction

The outer junction of an electrode, also known as a salt bridge, is necessary component of the electrical circuit. The movement of ions must flow through the junction for a steady reading. The outer reference has a single ceramic frit. The ceramic is a porous material that is easily fused with the glass body and has a similar expansion coefficient. A single ceramic junction has a flow rate of 15-20 μL/hour. Other junction types are available with higher flow rates and made with different materials.


Refillable

The HI-1615D is a refillable probe. Since it is a single junction pH electrode the fill solution is the HI-7071 3.5M KCl + AgCl. If using a refillable pH electrode, the fill cap should be removed prior to calibration and measurement. Removing the cap creates positive head pressure in the reference cell allowing for higher flow rate of electrolyte through the outer junction. A higher flow rate will result in a faster and more stable reading.


DIN Connector

The HI-1615D uses a DIN connector. This type of connector is generally proprietary to the meters they are supplied with and may not be interchangeable. The HI-1615D is recommended for use with Hanna’s HI-98140, HI-98150, HI-98230, HI-98240 pH meters. Other type of connectors include BNC, screw type, T-type, and 3.5mm.

Specifications

Specifications list

Specifications

pH electrode HI-1615D
Reference single, Ag/AgCl
Junction/Flow rate Ceramic, single / 15-20µL/h
Electrolyte KCl 3.5M + AgCl
Max pressure 0.1 bar
Range pH: 0 to 13
Recommended operating temp 20 to 40°C
Tip/Shape Spheric (dia: 9.5mm)
Temperature Sensor Yes
Amplifier Yes
Body material glass
Cable 7-pole; 1m
Recommended use laboratory general use
Connection 7-pin DIN

Product Literature

literature - PDF

Hanna Instruments Literature

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