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ORP Electrode, BNC Port with CPS™ for Anhydrous Titration HI3149B

Producer: HANNA Instruments

SKU: HANNA-HI3149B Category: Hanna experimental measuring equipment

ORP Electrode, BNC Port With CPS™ For Anhydrous Titration

The HI3149B is a glass body, refillable, open junction ORP electrode with a BNC connector. This electrode features a dual reference junction, Hanna’s Clogging Prevention System (CPS™) technology, and a platinum sensing ring. Compatible with all electrolytes

– Congestion Prevention System (CPS™) technology

– Platinum sensor ring

– Electrolytic refillable electrode

– Ideal for titrating anhydrous samples

The HI3149B uses a platinum ring, glass body, open junction with CPS technology and is refillable with 3.5M KCl electrolyte.

Platinum sensor

The HI3149B ORP sensor is made of platinum. An ORP sensor must be chemically inert; it cannot oxidize or reduce itself. It must also have the appropriate surface properties to promote rapid electron exchange, a characteristic 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 fabrication of ORP sensors. Platinum sensors are often preferred because they are mechanically simpler to manufacture and safer. Platinum can be welded to glass and has a similar temperature coefficient. The platinum sensor signal is transmitted through the electrode body and is conducted to the meter along with the reference signal.

CPS™ Joints

Clogging Prevention System™ (CPS™) technology is an innovation in electrode technology. Conventional ORP electrodes use ceramic junctions that quickly clog when used in wine. When the junction is clogged, the electrode is inoperative. CPS technology utilizes the porosity of the ground glass combined with a PTFE sleeve to prevent junction clogging. The ground glass allows proper fluid flow, while the PTFE sleeve repels dirt. As a result, ORP electrodes with CPS last 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 easy to clean. The glass body also allows for rapid heat transfer 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.

Double reference joint

The double junction electrode has an inner compartment that surrounds the reference wire. Silver ions are present in the electrolyte of the inner compartment, which contains the Ag/AgCl reference wire; the electrolyte outside this compartment is silver-free. The double junction design means that virtually no silver passes from the electrode into the sample. This design allows measurements in applications where silver ions in the sample are undesirable or where silver precipitates are likely to form on the junction.

Electrolytic refillable electrode

The HI3149B is a refillable electrolyte electrode. Since it is a single junction ORP electrode, the fill solution is the HI7082 3.5M KCl. If using a refillable ORP electrode, the cap must be removed prior to measurement. Removing the cap creates a positive head pressure in the reference cell allowing 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 HI3149B uses a BNC connector. This type of connector is universal in that it can be used on any pH/mV meter that has a female BNC probe input. Other connector types include DIN, screw type, T-type, and 3.5 mm. These connector types tend to be proprietary to a particular meter and are not interchangeable.

SPECIFICATIONS

ORP scale	± 2000 mV
Body material	Glass
Reference	Dual, Ag/AgCl
Joint	CPS™
Electrolyte	3.5M KCl
Maximum pressure	0.1 bar
Electrode tip	Platinum ring
Operating temperature	-5 to 60°C (23 to 140°F)
Temperature sensor	Are not
Amplification	Are not
Cable	1m long
Connector	BNC
Compatible machines	Use with any machine with a BNC connection
Application	Titration of anhydrous sample
Guarantee	06 months