How does a magnetic float switch work?
Magnetic float switches provide rugged & reliable liquid level measurement in a wide variety of process applications. But how does a float switch work?
Horizontal Magnetic Float Switches
You need to trust that your level switches won’t let you down. Mobrey float level switches are rugged, robust, and trusted globally for their long-term reliability in the harshest of environments and the most hazardous areas. Ideal for industrial applications such as pump control and high or low alarm duty on tanks and pressure vessels.
Vibrating Rod Level Switch for Solids – VLS Switch
The Vibrating Rod Level Switch (VLS) is the perfect solution for single point level switching in free flowing solids. For tanks, silos or hopper bins, and for a wide density range of solids from fine powders, grains to agregates. A single rod design provides the solution to tuning forks which may become blocked or bridged.
The vibrating rod is energized and kept in resonance by an electronic circuit. When covered by material, the damping of the vibration is detected by the electronics which switch the output relay after a configurable time delay. The vibrating rod level switch is the perfect solution for single point level switching in free flowing solids across a wide density range, from fine powders to grains. A single rod design provides the solution to tuning forks which may become blocked or bridged.
Key Features
- Adjustable sensitivity
- 1 ½” BSP or NPT threaded connection
- Side or top mounting
- Extension lengths to 20m
- Robust aluminium housing
- IP67 ingress protection
- AC or DC supply voltages
- Dust explosion protection
- High temperature option
MCU200 Suspended Solids Detection Switch
The MCU controller and gap sensor when used together provide an ultrasonic point level liquid switch. Typical applications include sludge blanket level detection in settlement tanks, interface detection for immiscible liquids and contamination detection, such as oil in water or water in oil. The MCU201 and MCU203 control units provide simple and economical control electronics for wall-mounting near a tank or pipeline containing a single ultrasonic gap sensor. The sensors operate on the attenuation of an ultrasonic signal through the fluid.
Vertical Float and Displacer Switches
For extreme conditions, this vertically mounted hermetically sealed switch provides dependable control. Specifically designed to handle corrosive atmospheres and low temperatures, the magnet switch mechanism provides a positive snap shut action. With less moving parts there is less maintenance and greater reliability. This product is ATEX accredited.
Key Features
- No springs in switch mechanism – positive snap action switching
- Vibration resistant – eliminates spurious trips
- Multiple switch point options – cost effective control
- Genuine hermetically-sealed switch option – totally safe and secure
- Extensive range of chambers – suitable for most applications
- Relevant chambers are supplied CE marked and fully compliant with the Pressure Equipment Directive (97/23/EC)
- Designed to ASME B31.3
- Weld procedures approved to EN ISO 15614-1 and ASME IX
- SIL Certified
Nuclear DP switch with chemical seals
In this example, Delta Controls was approached by a customer in the nuclear industry who had a very specific problem. This customer was trying to measure the differential pressure across a filter that was being used in a pipeline taking cooling water from a nearby...
New Nuclear Qualified Fast Reaction Air Temperature switch
The measurement of air temperature in and around the nuclear containment area is an important parameter indicating whether a problem has occurred, possibly a line break resulting in steam or coolant water loss.
SIL3 and SIL2 now available on CS switches
Delta Controls is pleased to announce that the CS range of Weatherproof, ATEX / IECEx Ex ia and Ex d Pressure..
GR7 Temperature Switches – Compact Series
The GR7 Temperature Switch provides users with a compact, robust and hermetically sealed switch for use in safe and hazardous areas. This makes them particularly suitable for panel mounting in harsh environments. This product comes with a rigid or semi-rigid thermal system and is suitable for setpoints between -40°C and +350°C, with a maximum working temperature of up to 360°C (EAC certification is available on request).
Key Features
- Compact and rugged design
- Weatherproof IP66/NEMA 4
- ATEX Flameproof CENELEC Ex d IIC option
- ATEX Intrinsically Safe ATEX Ex ia IIC option.
- Stainless steel body option NEMA 4X rating
- Optional weatherproof, ATEX Ex e, ATEX Ex ia or ATEX
- Flameproof Ex d IIC terminal enclosures.
- 316 Stainless steel capillary and bulb.
- Ranges available up to 350°C (660°F)
- Maximum working temperature up to 360°C (680°F)
- Field adjustable.
- Hermetically sealed snap switch CSA listed.
Hazardous Area Switches
Sentry series Pressure, Differential Pressure and Temperature switches are now available for use in Zone 1 (Gas) and Zone 21 (Dust) Hazardous Areas. Based on the popular Sovereign series, the new Sentry series switches come in a smaller, lighter package, have a better...
SIL 2 now available on Sentry Series Switches
Delta Controls is pleased to announce that the Sentry range of Weatherproof, ATEX / IECEx Ex ia and Ex d Pressure, Differential Pressure and Temperature Switches have been assessed by Sira Certification Service and found to meet the requirements of IEC 61508-2:2010 as...
New & Blue: Latest Blue Enclosure
We have just received delivery of one of our first blue S20 Pressure Switches…
