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Hanna Combination ORP Electrode with Built-In Temperature Sensor HI36183
Hanna HI36183 Orp electrode with buit-in Temperature Sensor

Hanna Combination ORP Electrode with Built-In Temperature Sensor HI36183

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Part Number:2813
Hanna Combination ORP Electrode with Built-In Temperature Sensor HI 36183

The HI36183 is a glass body, refillable, single junction ORP electrode with a built in temperature sensor and a quick connect DIN connector. This type of connector is proprietary to specific meters such as the HI98190. The HI36183 ORP electrode has a single ceramic junction in the outer reference cell and the ORP sensing pin is made of platinum. This design consideration is ideal for laboratories and general purpose oxidation reduction reaction measurements.

Details

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

The HI36183 uses a platinum pin, glass body, single ceramic junction and is refillable with 3.5M KCl + AgCl.


Platinum Sensing Pin

The HI36183 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 a similar thermal coefficient.


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 allow 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.

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 HI3618B is a refillable probe. Since it is a single junction ORP electrode the fill solution is the HI7071 3.5M KCl + AgCl. 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 higher flow rate of electrolyte through the outer junction. A higher flow rate will result in a faster and more stable reading.

 

Quick Connect DIN Connector

The HI36183 uses a Quick Connect DIN connector that makes attaching and removing the probe simple and easy. This type of connector is proprietary to the meter. See specifications table for compatible meters.


Specifications

Body Materialglass
Referencesingle, Ag/AgCl
Junction / Flow Rateceramic, single / 15-20 μL/h
Electrolyte3.5M KCl + AgCl
RangeORP: ±2000 mV
Max Pressure0.1 bar
Tip Shapeplatinum pin
Recommended Operating Temperature-5 to 70°C (23 to 158°F)
Temperature Sensoryes
Matching Pinno
Amplifieryes
Digitalno
Cable5-pole; 1 m (3.3')
Connectionquick connect DIN
Applicationslaboratory general purpose

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