Probe Archives - Milktronics Online instruments

Retractable Rosemount 228 conductivity probe

Sylvain Dehec — Sat, 24 Feb 2018 01:04:24 +0000

The Model 226 and 228 toroidal (inductive) conductivity sensors consist of a pair of wire-wound metal toroids overmolded with either corrosion resistant PEEK or Tefzel®1. When the sensor is immersed in a conductive liquid and an AC voltage is applied to the drive coil, a voltage is induced in the liquid surrounding the coil. The voltage causes an ionic current to flow proportional to the conductance of the liquid. The ionic current induces a current in the receive coil, which the analyzer measures. The
induced current is directly proportional to the conductivity of the solution.
Toroidal sensors work well in highly conductive liquids, up to about
2 S/cm (2,000,000 uS/cm). Performance in low conductivity samples
is somewhat limited, with the minimum conductivity depending on the
dimensions of the toroids, the number of windings in each, and the
analyzer. When used with the Model 1056 and 56 analyzer the limits
are 15 uS/cm for the 228 sensor and 5 uS/cm for the 226 sensor. When
used with other instruments, the limits are 200 uS/cm for the 228 sensor, and 50 uS/cm for the 226 sensor.
The measurement is insensitive to flow rate and direction. The sensor must be installed so that it is completely flooded, and the toroid hole must remain open.
The Model 226 and 228 sensors have integral RTDs to allow temperaturecompensated
conductivity measurements.
A insertion/retraction assembly is available for the Model 228

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Toroidal 228 Rosemount conductivity probe 228-02-20-54-61

Sylvain Dehec — Sat, 24 Feb 2018 00:52:09 +0000

Rosemount conductivity probe model 228 suitable with transmitter model 56 or 1056

The post Toroidal 228 Rosemount conductivity probe 228-02-20-54-61 appeared first on Milktronics Online instruments.

Toroidal Rosemount 226 conductivity probe

Sylvain Dehec — Sat, 24 Feb 2018 00:48:10 +0000

Rosemount Analytical toroidal conductivity sensors are ideal for use in corrosive liquids or in liquids containing high levels of suspended solids that would otherwise corrode or foul metal-electrode sensors. Toroidal conductivity sensors are also well-suited for measuring highly conductive electrolyte solutions.

Toroidal sensors work well in highly conductive liquids, up to about 2 S/cm (2,000,000 uS/cm). Performance in low conductivity samples is somewhat limited, with the minimum conductivity depending on the dimensions of the toroids, the number of windings in each, and the analyzer. When used with the Model 1056 and 56 analyzer the limits are 15 uS/cm for the 228 sensor and 5 uS/cm for the 226 sensor. When used with other instruments, the limits are 200 uS/cm for the 228 sensor, and 50 uS/cm for the 226 sensor.

The post Toroidal Rosemount 226 conductivity probe appeared first on Milktronics Online instruments.

Rosemount Toroidal 225

Sylvain Dehec — Fri, 16 Feb 2018 17:08:25 +0000

Meet Various Sanitary Requirements
-USP Class VI compliant
-FDA food contact 21CFR177.2415 compliant
-3-A Sanitary Standard 74-06 compliant
Ease of Installation
- 2 inch tri-clamp process connection
- Installation flexibility with maximum cable lengths up to 200 ft (61 m) between sensor and transmitter when paired with remote junction box (sold separately)

High performance and Reliability
- Robust measurements - insensitive to process flow and direction
- Meet application compatibility requirements with a selection of chemical resistant body options including PEEK and Tefze

Code: 225-03-56

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