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Emco Controls A/S
Høgevej 6
DK- 3400 Hillerød
Denmark

Phone +45 4576 94 00
Fax +45 4576 94 01
emco@emco.dk

Emco Controls A/S receives the Gazelle award from the leading Danish business newspaper Borsen in recognition of being one of Denmark's fastest growing companies.

 

    

 

 

Svømmerafbryder teknik

 
 
EMCO liquid level switches have been manufactured since 1973 serving customers
reliably in many different industries including the shipbuilding industry.
The present liquid level switch is developed by our engineers backed up by more than
30 years of know how gained by close corporation with our valid customers.
The initial stage of the new development was to set up the requirements to the
design of the level switch. 5 major requirements were identified :
 
1. Easy electrical and mechanical mounting
2. Good corrosion resistance of the switch housing
3. Modern design
4. Low manufacturing costs
5. High degree of flexibility
The engineers within the company were able to solve 4 out of the 5 major requirements. The design of the level switch was done by an industrial designer.
Application
The EMCO level switch is designed to control the liquid level in vessels
containing corrosive or non-corrosive liquids.
 
Alarm duty
   
The standard level switch with float code 01 is used for signalling high or low
alarm points. The signal may be used for plant shut down or emergency override
control.
Level switch with float code 05 is intended for side mounting with alarm point with difficult accessibility.
Level switch with float code 04 is for vertical mounting on top of the vessel.
Level switches with long levers f. d. code 50 are used for alarm duty with unstable
liquid surface or with insulated vessels requiring long levers undisturbed movement.
Liquid level interface, minimum difference in density 0,2
 
Pump/valve control
 
Two level switches with float code 01 are used for pump control where one switch starts the pump by activating a holding relay and the other switch brakes the holding relay when the desired liquid level has been reached.
 
Function
The EMCO float switch can be mounted horizontally or vertically, but horizontal mounting is the most common.
The float lever carries a permanent magnet which is opposed by a similar magnet mounted in the switch housing. The magnets having the same pole directed toward each other are separated by a non magnetic
diaphragm.
The glandless construction offers excellent sealing.
 
Construction
The EMCO Float switch consists of 3 main parts :
1. Housing with switch, electrical or pneumatic
2. Mounting flange
3. Float
The modular construction of the EMCO float level switch offers excellent
flexibility to suit customers' requirements.
Features
* Easy to install
* Very high flexibility
* Fast delivery
* Type approved by Det Norske Veritas, Lloyds Register of Shipping and Bureau Veritas
Applicable for high temperatures
Technical Specifications
Switch housing
: Stainless steel, as option aluminium
Wetted parts : Stainless steel AISI 316, as option PP and PTFE
Specific gravity : Standard min. 0,7; option min. 0,5
Max. working pressure
: Standard flange 100 bar
  Standard flanges to DIN or ANSI/ASME norm
Max.working temperature. : Depending on switch type
Enclosure
: IP 65,
  IP 68 with 3x1,5 mm2 ships cable on request
Electrical gland connection : M20 x 1,5 mm
Option : Hirschmann, Schaltbau or other make of connector
 
 
 
 
 
 
 
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