Hanna Instruments

Scientific Equipment

HI-3148B ORP Electrode with CPS™ (Clogging Prevention System)

HI-3148B ORP Electrode with CPS™ (Clogging Prevention System)

Hanna HI-3148B ORP Electrode with CPS (Clogging Prevention System)

HI-3148B ORP Electrode with CPS™ (Clogging Prevention System)

Ideal for use in wine
Refillable with 3.5M KCl (Potassium Chloride)
In Stock
£216.45 (exc. VAT) £259.74 (inc. VAT)

ORP Electrode with CPS™ (Clogging Prevention System)

The HI-3148B is a glass bodied, refillable, open junction ORP electrode with a BNC connector. This electrode features a double junction reference, Hanna’s Clogging Prevention System (CPS™) reference junction and platinum sensing ring.

BNC Connection – BNC is one of the most commonly used connector types in pH meters and electrodes. Compatible with any meter or electrode that uses BNC connectors.

Frequently Bought Together

Price for all:
£284.45
Buy All 2 for: £270.23

HI-3148B ORP Electrode with CPS™ (Clogging Prevention System) information

Hanna's extended description

The HI-3148B is an ORP SMART electrode with CPS™ (Clogging Prevention System) for wine.

It has a glass body, refillable, open junction with a BNC connector. This electrode features a double junction reference, Hanna’s Clogging Prevention System (CPS™) technology, and platinum sensing ring.


About the Platinum Sensor

The HI-3148B ORP sensor is made with platinum. An ORP sensor must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors. The platinum sensor is often preferred because it is mechanically simpler and safer to produce. Platinum can be welded to glass and has the same thermal coefficient. The platinum sensor signal is carried through the electrode body, and together with the reference signal is conducted to the measurement meter.


CPS™ Sleeve Junction

Clogging Prevention System (CPS™) technology is an innovation in electrode technology. Conventional ORP electrodes use ceramic junctions that clog quickly when used in wine. When the junction is clogged, the electrode does not function. CPS technology utilises the porousness of ground glass coupled with a PTFE sleeve to prevent clogging of the junction. The ground glass allows proper flow of the liquid, while the PTFE sleeve repels dirt. As a result, ORP electrodes with CPS stay fresh up to 20 times longer than conventional electrodes.


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 equilibrium, the steadier the reference potential.


Double Junction Reference

A double junction electrode has an internal compartment surrounding the reference wire. Silver ions are present in the electrolyte of the internal compartment, which houses the Ag/AgCl reference wire; the electrolyte outside this compartment is silver free. The double junction design means that virtually no silver from the electrode enters the sample. This design allows measurement in applications where silver ions in the sample are undesirable or silver precipitates on the junction are likely to form.

Refillable

The HI-3148B is a refillable probe. Since it is a single junction ORP electrode, the fill solution is the HI-7082 3.5M KCl. If using a refillable ORP electrode, the fill cap should be removed prior to measurement. Removing the cap creates positive head pressure in the reference cell allowing for a higher flow rate of electrolyte through the outer junction. A higher flow rate will result in a faster and more stable reading.


BNC Connector

The HI-3148B uses a BNC connector. This type of connector is universal in that it can be used on any pH meter that has the female BNC probe input. Other types of connectors include DIN, screw type, T-type, and 3.5mm to name a few. These types of connectors tend to be proprietary for a particular type of meter and are not interchangeable.

Specifications

Specifications list

Specifications

Reference Double, Ag/AgCl
Junction Open, CPS technology
Diameter / Body Length / Overall Length 12mm / 120 mm / 175.5 mm
Connector BNC
Electrolyte 3.5M KCl
Max Pressure 0.1 bar
Range ORP: ±2000mV @ -5 to 80°C
Tip Shape Platinum ring
Temperature Sensor No
Amplifier No
Body Material Glass
Cable Coaxial; 1m
Recommended Use Wine

Product Literature

literature - PDF

Hanna Instruments Literature

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