FC240B

Description

The FC240B is a stainless steel body, single junction pH electrode that has a BNC connector. The very small 5 mm (0.2”) diameter of the FC240B is protected by an unbreakable AISI 316 stainless steel body that is 150 mm (5.9”) long; an ideal diameter is for small containers and test tubes. The FC240B also features an open junction design with viscolene gel electrolyte, a sensing bulb made of general purpose glass, and a conical tip shape.This design consideration is ideal for pH measurements in cheese, dairy products, and quality control processes. The recommended operating temperature range is from 0 to 50°C.

•  AISI 316 Stainless Steel Body
•  Conical Glass Tip
•  Open Junction

  The FC240B uses General Purpose (GP) glass, conical bulb, AISI 316 stainless steel body, and open junction with viscolene gel electrolyte. 
General Purpose Glass Formulation
•  General Purpose (GP) glass, as the name implies, is a standard glass formulation that is used for general use.
•  A pH electrode with GP glass will have a resistance of 100 megaohms at 25°C and is suited for measuring pH of samples that are at ambient temperatures.
•  The FC240B is suitable to use with samples that measure from 0 to 50°C.

  Conical Glass Tip
•  The conical shaped tip design allows for penetration into solids, semi solids, and emulsions for the direct measurement of pH in food products.

  Stainless Steel Body
•  Having a very small diameter of only 5 mm (0.2”) this electrode can be accidentally broken.
•  To help protect from breakage Hanna Instruments made this electrode with an unbreakable  stainless steel body.
•  The AISI 316 stainless steel can be easily cleaned making it ideal for food industries.

  Open Junction Reference
•  Suspended solids and proteins found in food products 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 impermeable to clogging, resulting in a fast response and stable readings.

  Refillable
•  The FC911B is a refillable probe.
•  Since it is a double junction pH electrode the fill solution is the HI7082 3.5M KCl.
•  This solution does not contain any silver as with single junction electrode.
•  The absence of silver will prevent any silver precipitate from forming at the junction surface and clogging it.
•  Clogging of the junction will result in drifty and erratic readings.

  BNC Connector
•  The FC240B 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 type 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