Top Mounted Level Switch

Model No. : MI - 014
INTRODUCTION
The Top Mounted Level Switch is an established and reliable technique in industry for single or multiple liquid level sensing and control in open or pressurized vessels. It offers trouble free service in conductive and non conductive liquids under widely varying temperatures, pressures, liquid viscosity and corrosive conditions. Besides, it provides high repeatability, and effects of shocks or vibrations are minimal.


Specifications
Installation Outdoor / Indoor
Mounting Top
Terminal Enclosure Cast Aluminum, Weather proof to IP 66 or Ex - proof to Gr. IIA & IIB or IIC
Conduit Connection 1/2” BSP (F) with 1/2” BSP (M) Conduit
MOC of Guide Tube SS316, PP, SS316 with PVDF coated
No. Of Floats Single or Multiple (Maximum of 4)
MOC of Floats SS316, PP or PVDF
Size of Floats Ø28, Ø41, Ø60, Ø75 & Ø90mm for Ss316, Ø50, Ø63 & Ø90mm for PP and Ø60, Ø75& Ø90mm for PVDF
Process Connections Flanged with Housing, Screwed with Housing or Flanged with DIN Connector
Min. Specific Gravity 0.7 (Minimum)
Switch Type Reed Switch
Switch Rating 0.5A / 250 VAC
Switch Differential Fixed (10 ± 5mm)
Housing Material Die - cast Aluminum
Ingress Protection IP 65
MOC of Wetted Parts AISI 316 SS
Accuracy ± 2mm
Repeatability ± 1mm
Load Resistive or Inductive
Insulation 100 Mega - Ohms at 500 VDC
Max. Operating Temperature 100ºC
Max. Operating Pressure 10 Kg/cm2


Side Mounted Magnetic Level Switch - Model No. : MI - 015



INTRODUCTION
The Side Mounted Magnetic Level Switch is an economical free and reliable device used for high, low and intermediate point level switching. It is ideal for tanks with inaccessible tops or bottoms and where insertion depths of top mounted models exceeded

PRINCIPLE

The Side Mounted Magnetic Level Switch has a compact& rugged construction, consisting of a free moving pivoted float assembly and a switch enclosure in non magnetic material to achieve undisturbed magnetic flux. It employs dual magnets, one carried by the float arm and other by the contact carries housed in the switch enclosure. A change in liquid level brings the like poles of dual magnets opposite to each other and resulting repulsion force ensures a changeover of contacts with snap action. The magnetic transmission is glandless, leaving no scope for leakages from vessel into switch housing. These switches are manufactured in various materials, enclosures and special features to suit broad range of media and applications. They are designed to provide high repeatability and to minimise effects of shock, vibration and pressure.



MINI LEVEL SWITCH Model No. : MI - 016



INTRODUCTION
The Mayur Instruments Mini Level Switches are top mounted as well as side mounted. Top Mounted mini level switches are installed vertically and can be extended through an extension pipe for low level switching or alternatively switch can be side mounted through an elbow. The switch action can be changed from N/O to N/C and vice versa by simply reversing the float direction. The Side Mounted mini level switches are installed horizontally and can be mounted vertically for some applications like flow detection. The switch action can be reversed by reorientation of the mounting.



Top Mounted Mini Level Switch
PRINCIPLE
The Top Mounted Level Switch has a simple & sturdy construction, consisting of a float and guide tube, made of nonmagnetic material to achieve un-disturbed magnetic flux. The float has a magnetic system within it and moves freely along the guide tube, which contains glass encapsulated hermetically sealed reed switches, located at preset positions. Float follows liquid level and magnetically actuates reed switch at preset positions to give a change over contact. Single switching is available through single float depending upon float size and switch construction. It can be mounted vertically from top and can be extended through an extension pipe for low level switching or alternatively switch can be side mounted through an elbow.

Side Mounted Mini Level Switch
PRINCIPLE
The Side Mounted mini level switches are installed horizontally and can be mounted vertically for some applications like flow detection. The switch action can be reversed by reorientation of the mounting. The level switch can be wired directly in series to operate electric loads like audio or alarm, annunciation, mimic indication, which match the low switching capacity of reed contacts. However, high loads like contactor, solenoid or motorized valve should be connected through a level controller to prevent overloading by surge or inrush current and isolate reed contacts from the electrical power system, to ensure their long life



Cable Float Level Switch - Model No. : MI - 017



INTRODUCTION
The Mayur Instruments Cable Float Level Switch is a simple user friendly and reliable switch for liquid level detection. By selecting an appropriate float and cable length, it can be used for small or long range detection of liquids, with or without impurities, sanitary applications like drinking water and also for explosive liquids or liquids in hazardous areas. Beside this by using a number of cable floats with appropriate fixation points, it can be used for multipoint detection

PRINCIPLE
The Cable Float Level Switch consist of a float, integral with a three core electric cable. A fixed micro switch and a moving steel ball are enclosed within the float casing. A change in liquid level causes the float to tilt up or down around a pivot, provided in the form of an adjustable stopper, support pipe or ballast, at an angle and in the process, actuating a steel ball to move and operate a micro switch plunger to close or open an electrical circuit with potential free contacts, to operate auxiliary electrical devices like alarm, pump and solenoid valve..

SPECIFICATIONS
Float Protection : WP IP-68
Terminal Enclosure : Cast Aluminum, WP IP-66
Cable Gland : Brass
Process Connection : Flanged x 1", 1-1/2 ", 2 ", 2-1/2 ", 3", 4" NB, 150#
Integral Cable Length : 2, 3, 5, 6, 8, 10, 15 & 20 meters (Larger lengths on request)
Contact Type : Microswitch (SPDT)
MOC of Float : Polypropylene
MOC of Counter Weight : Polypropylene
MOC of Cable : Neoprene x 10mm
Min. Liquid Specific Gravity : 0.75
Adjustable Stopper : Polypropylene
Support Pipe : SS304 / Polypropylene
Suspended Ballast : SS304 / Polypropylene with PVC insulated SS304 rope