HI14143 is a glass body, single reference junction pH electrode made with low temperature glass and a quick connect DIN connector. This pre-amplified electrode features a built-in temperature sensor for temperature compensated measurements in a single probe design.

Low Temperature Glass Formulation

The glass uses a special LT glass formulation that has a lower resistance of approximately 50 megohms compared to general purpose (GP) which has a resistance of approximately 100 megohms. This is beneficial because many foods are stored at low temperatures. As the temperature of the glass in the sample decreases, the resistance of the LT glass will increase approaching that of GP glass at ambient temperature. If GP glass were used, the resistance would increase to above the resistance of the pH meter's high impedance input. The HI14143 is suitable for samples from 0 to 50°C.

Flat Glass

A flat tip is recommended to optimize surface contact for measurement of leather and paper.

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 more stable the reference potential will be.

Open Junction Reference

Suspended solids and proteins found in food will clog a conventional ceramic reference junction. This clogging will impede the measurement circuit between the indicating electrode and the internal reference resulting in slower response time, erratic readings, and frequent electrode replacement. The open junction design consists of a solid gel interface (viscolene) between the sample and internal Ag/AgCl reference. This interface not only prevents silver from entering the sample, but also makes it impervious to clogging for a fast response and stable readings.

DIN Connector

The HI14143 uses a quick connect DIN connector. This type of connector is designed to be used with Hanna meters that accept a quick connect DIN connector. The HI14143 is recommended for use with the HI99171 pH meter. Other types of connectors include BNC, screw-type, T-type and 3.5mm, among others.