Rosemount Model 228 Conductivity Sensor

Submersion/Insertion toroidal (non-contacting) sensor for use in dirty, corrosive, or high conductivity liquids.

Rosemount Model 228 Conductivity Sensor
Toroidal Conductivity Sensor Tutorial

Starting at $1,255.10

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Manufactured

By Rosemount

Includes

FREE Ground Shipping
FREE Lifetime Tech Support

Availability

Usually ships in 3-5 weeks

Product Manual Product Specs

Features

Rugged construction
Max Temp;
- PEEK: 120°C (248°F)
- PEEK: 200°C (392°F)
- Tefzel: 120°C (248°F)
Max Pressure;
- PEEK: 295 psig
- Tefzel: 200 psig
Tolerates high vibration
Max cable length: 200ft
Integral RTD

The Rosemount Model 228 is a submersion-insertion type toroidal sensor. Because it measures conductivity by inducing a current, the toroids do not need to touch the sample, but can be encased in plastic. Thus, unlike metal electrode sensors, the Model 228 sensor can be used in corrosive and dirty samples. It is also ideal for measuring high conductivity liquids.

The sensor is available in glass-filled PEEK and in filled and unfilled Tefzel®. The temperature limit is 248ºF (120ºC); although a high temperature (392ºF (200ºC)) PEEK version is available. The pressure limit for PEEK body sensors is 295 psig (2135 kPa abs) and for Tefzel body sensors is 200 psig (1480 kPa abs).

Mechanical and manual retraction assemblies that allows the sensor to be removed from the process piping without shutting down the process and draining the line is also available.

Unshielded interconnecting cable for 1054A, 1054B & 2054C.

Starting at $149.10

Rosemount 23294-05 Extension Cable

Shielded interconnecting cable with additional wire .

Starting at $149.10

Rosemount Extension Cable

Extension cable for Model 228.

Starting at $135.60

Mounting Bracket

Rosemount Mounting Adapter

Mounting adapter with 2in insert, CPVC & 1in FNPT conduit connection.

$620.77

Accessories

Please consider these optional accessories.

Rosemount Mounting Adapter

1 x 3/4in, 1.5in insertion.

$832.22

Rosemount Adapter Insert

PEEK, 1 X 3/4in, for 23242-02.

$198.79

Rosemount 23550-00 Junction Box Remote

Does not include preamplifier.

$365.05

Rosemount 23242-03 Mounting Adapter

1.5in insert, 1in conduit connection.

$891.85

Rosemount 33075-00 Gasket

Viton gasket.

$78.61

Rosemount 33075-03 Gasket

Kalrez gasket.

2-135, EPR.

Ball valve, full port, 1 1/2 FNPT.

$1,829.79

Rosemount Stainless Steel Tag

Starting at $110.24

Rosemount Valve Insertion Assembly

Valve insertion assembly with mechanical or manual options.

Starting at $3,078.57

Rosemount 23277-01 Mounting Adapter

Foxboro, PEEK, 5/8-11UNC.

$245.78

Rosemount 99CC Calibration Certificate

One certificate per lot at standard factory ranges only, includes the model, serial and/or tag numbers (does not include actual test data).

$51.51

Rosemount Electronic Calibration

Certificate for specific unit, includes model, serial and/or tag numbers, test standards, NIST report numbers, & the actual test data.

Starting at $235.84

Rosemount Certificate of Origin

Original certificate of origin with chamber of commerce stamp.

$394.87

Rosemount Sensor Material Certificate

$127.41

This product can be used in the following applications:

Here's how some of our customers use this product...

Measuring Acid Concentration Via Conductivity

The Background: A manufacturing company uses a very strong acid as part of its manufacturing process and needs to monitor the strength of the acid

The Problem: Typical pH probes are generally designed for measuring between 2 and 12 pH. Outside of that range, accuracy is greatly diminished. To account for this, it is common to measure the concentration of the acid or base with a conductivity meter rather than measuring the pH level. One problem with this is that standard contacting conductivity probes are likely unable to handle the corrosive nature of strong acid and bases.

The Solution: The Rosemount 228 is a toroidal conductivity sensor that measures conductivity by inducing a current, a technology that does not require contact with the sample making it ideal for highly corrosive environments. The 228 will provide accurate conductivity readings as a way to determine the concentration of an acid or base.