ITS has more than 12 years experience designing sensors for industrial applications.
ERT sensors comprise of multiple electrodes which must make electrical contact with the fluid within the process volume. The most common geometry is a circular sensor with the electrodes arranged uniformly around the circumference.
This approach is suitable for vessel based sensors for both R&D and industrial applications. Circular sensors can also be fitted to the circumference of process vessels although this tends to be limited to R&D applications. These sensors can be designed to minimise or eliminate any disturbance of the flow through the pipe by making the electrodes flushed to the wall.
ERT can also be applied to vessels using probe based sensors.
A variety of materials can be used for sensor body, including:
- acrylic
- PVDF/PTFE
- polymer Lined Stainless Steel
- abrasion resistant ceramic tiles
- glass or glass reinforced steel
Electrodes can be constructed of:
- 316 Stainless Steel
- Hastelloy
- platinum
- conducting ceramics
- copper
ITS has built sensors which have been fitted in autoclaves and have an operating temperature in excess of to 200°C and operating pressure of 50 bar. Vessel diameters can be from 8mm to 5m.
ERT sensors can be used with p2+ and v5r instruments for measuring reactions and mixing applications. It should be noted that Atex environments can only be addressed with a maximum of 16 electrodes at any one time.
ITS can provide advice on sensor suitability for particular processes, commissioning and technical support as required.
