LR02-L20M

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## Ve €- 3830 Jp / S44 NE NE SN EEE LF TRITON CONTROLS - FLOAT SWITCHES LR02 - NON MERCURY LEVEL REGULATORS 

- _ Float Switches are inexpensive and efficient liquid level detectors, simple to install, designed for trouble free operation over a long life. The LRO2 is a non-mercury version of the highly successful LRO1 / SC37 series. The mercury tilt switch as used in the LROI has been replaced by a micro-switch and rolling ball arrangement, which eliminates all heavy metals. Construction The unit comprises three major components : 1. The three-cored cable, connected to the microswitch assembly 

- ; inside the float chamber, is sheathed in Hypalon, 

- x WEIGHT & chlorosulphonated polyethylene or CPE chlorinated 2 polyethylene, synthetic rubber. This cable is supplied in three " lengths, 5 metres, 10 metres and 20 metres +5% of the length S quoted. Although other lengths may be available on request. 2. An actuating weight fixed to the cable approximately 120 mm from the float chamber is also coated in Hypalon. 

- 3. The float chamber houses the microswitch arrangement, 

- 2 totally sealed within closed cell polyurethane foam, with a iT single pole double throw action. Outer walls of the switch are moulded in Hypalon. 

Hypalon Du Pont de Nemours, Wilmington, Delaware. 

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j|i| Mounting<br>BLUE \ There are no hard and fast rules applicable to mounting these<br>BLAKK XJ units, however the lead should be supported in an enclosed<br>BROWN Ne \ vessel, and in an open vessel it is advantageous to clip the lead<br>= re oN microswitcH to the side especially if excessive turbulence is experienced.<br>i >|<br>slcaives result if such turbulence is experienced, it is advantageous to use<br>== S|} [VAL] aN [LN] Steet BALL To obviate the effects of rapid switching conditions that would<br>=e |) a maintaining circuit which both safeguards the microswitch and<br>i) ;<br>CY4 cuts out any chatter ofthe starters of associated pumps etc.<br>LLB Alternative cable lengths and actuating weight position can be<br>z produced to order.<br>**----- End of picture text -----**<br>


TRITON CONTROLS LTD., UNIT 4A, EVENWOOD IND. EST., BISHOP AUCKLAND, Co. DURHAM, DL14 9SF, ENGLAND. TEL/FAX 44 (0) 1388 833000 

LR02 - NON MERCURY FLOAT SWITCH ~ Method of Operation The microswitch assembly inside the float, axially mounted in line with the weight, changes contacts according to the float’s position, as in the diagram below. Therefore as the liquid level drops or rises slowly, a pump or flow control suitably connected, can be switched in or out to maintain an average level of the liquid. By connecting only one side of the switch, the unit can be also used to fill or empty the tank as required. 

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Dimensions<br>cable in mm do not take any lateral swing of the<br>into consideration.<br>CONTACT BETWEEN BROWN<br>af \e Aas aoe<br>ims 7 \*<br>enna oy<br>| nneen ae<br>on<br>a<br>a<br>wo un a<br>orgRaine ~ Rt TOM mo<br>pen-f\--& ee nee /Y<br>4 VEO Js ;<br>CONTACE BETWEEN arowne<br>OPERATING PONTS ARE APPROXMATE ONY<br>J<br>**----- End of picture text -----**<br>


## Contact rating: 250 VSA (non-inductive) 10 Amp Available Max. temperature 70°C 

Max. submerged depth 20 metres Compressive Strength 482 KN/m? (70 lbf/in?) Operational in specific gravities from 0.8 to 1.3 

## Hypalon Chemical Resistance 

Against Rating Lubricants Good to excellent Mineral oil & petrol Good Vegetable & animal fats Good Water Absorption Very Good Oxidation Excellent Ozone Good Sunlight Good Heat Excellent Low Temperature Very Good Dilute Acids Excellent Concentrated Acids Good 

Full information on the fluid resistance of the LRO2 float switch will be given on request. 

When ordering. please specify. part numbers. 

## Connection diagram for automatically emptying tank 

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- FARNELL ORDER CODE MFTRS TYPE No. CABLE LENGTH 7063830 LRO2-LOSM 5M 1063842 LRO2-L10M 10 063854 - 7 585 LRO2-L204 20M 

## Connection diagram for automatically refilling tank 

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