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User’s & Technical Manual –

 

ANALOG LIQUID LEVEL SENSOR ALLS6000 

GELEC

  

Industrial Electronics

 

                                                                                                                                                                       PAGE

 

18

 

When the differential level (DL) is calibrated, any target level (TL) selection through the 
potentiometer, will lead the device to automatically calculate the working region. At this 
example for a (TL) selection of 80cm, the working region will be 80cm-70cm.  
 
Notice that with the

se example’s 

steps, for every (TL) you select with the potentiometer, 

the (DL) will be 12,5% less. 

 

 

PRESELECTED VALUES 

 

The  standard  version  ALLS6000-S1  can  control  the  liquid  level  in  tanks  with  height  from 
10cm to 100cm and has the below preselected values and parameters. 
 

 

Liquid : Soft Water 

 

High level (HL) : 100 cm  

 

Differential level (DL) : 50% of (TL). 

 

Low level (LL) : 1cm   (0+1cm offset) 

 
 
 

NOTES 

 

 

The device measures the hydrostatic pressure of the liquid contained in the tank, so 

the tank

’s

 volume and shape are not factors that influence the measurement. 

 

 

The calibration is done for a specific tank height and for a specific liquid. If you use 

the same tank with a different liquid, a new calibration has to be done. 

 

 

In order to have the optimum measurement resolution, it is recommended the high 

level to be calibrated near the target level. 

 

 

According  to  your  unit  version,  take  care  not  to  exceed  the  recommended  liquid 
level height. If the sensor-applied pressure is higher than the appropriate, the sensor 
will be destroyed. 

 
 
 
 
 
 
 
 
 
 

Содержание ALLS6000

Страница 1: ...ANALOG LIQUID LEVEL SENSOR ALLS6000 INDUSTRIAL ELECTRONICS...

Страница 2: ...User s Technical Manual ANALOG LIQUID LEVEL SENSOR ALLS6000 GELEC Industrial Electronics PAGE 2...

Страница 3: ...UID LEVEL SENSOR ALLS6000 7 5 GENERAL DESCRIPTION 8 6 ALLS6000 VERSIONS AND OPTIONAL PARTS 9 7 CONTROL UNIT ALLS6000 11 8 PNEUMATIC SECTION 11 9 ELECTRICAL SECTION 14 10 OPERATING PHILOSOPHY LEVEL DES...

Страница 4: ...lectric shock or other damage Do not touch the plug and the connectors with wet hands Disconnect the ALLS6000 before cleaning it to avoid the risk of electric shock Attempting to use a malfunctioning...

Страница 5: ...ial and or faulty construction and functional defects GELEC and authorized distributors will at their option either repair or replace the faulty product with the same or similar model GELEC and author...

Страница 6: ...tes that this should not be treated as household waste when you wish to dispose it It should be handed over to an applicable collection point for the recycling of electrical and electronic equipment B...

Страница 7: ...not touch any part of the ALLS6000 the manual does not cover Keep the manual for immediate reference It should help in solving any operational questions you may have No part of this manual may be quo...

Страница 8: ...to voltage Afterwards several electronic circuits and a microcontroller process this signal and depending on user adjustments a digital command is taken when the liquid in the tank reaches the selecte...

Страница 9: ...50 of the Target Level programmable between 1cm and 100cm Built in air flow regulator Air pipe connectors 4 6 mm ALLS6000 Sx CUSTOMIZED VERSION The device can be customised to your application with t...

Страница 10: ...4 6mm Connectors Air Pipe Nylon air pipe 4 6 mm inner outer Deflation Tube 12mm outer diameter and 120cm length deflation tube divided in two pieces with connection fig 3 fig 4 fig 5 fig 6 fig 7 2 5...

Страница 11: ...mall quantity of air is provided to the tube via air pipes and deflates into the liquid in a form of bubbles The deflation tube must have a 60o V cut at the bottom for proper air deflation and a pipe...

Страница 12: ...ipes are suitable for these connectors Maintain the air purity in an acceptable level Dusty and polluted air makes the pipes dirty and high level of humidity or oil will damage the sensor The P is the...

Страница 13: ...se span and offset bias equalized with the Atmospheric pressure A silicone gel isolates the die surface and wire bonds from the environment while allowing the pressure signal to be transmitted to the...

Страница 14: ...AL OUTPUT Terminals 1 N C 2 COM 3 N O This output terminals 1 2 3 works as a potential contact of a relay These contacts allow the operation of the device that fills drains the tank The DPDT relay con...

Страница 15: ...Level HL Therefore the value that the arrow is pointing is the desirable TL but as a percentage of the HL and not as an absolute value The potentiometer s use during the level calibration process is d...

Страница 16: ...ion process it is essential for the DL also to be modified to the desirable level Working region It is the desirable region which the liquid level fluctuates either in FILLING or DRAINING mode The wor...

Страница 17: ...erential level you have to calibrate Calculate the differential coefficient k between your desirable TL and DL which are the two limits of your working region as below k 100 TL DL TL 1 And then use k...

Страница 18: ...d has the below preselected values and parameters Liquid Soft Water High level HL 100 cm Differential level DL 50 of TL Low level LL 1cm 0 1cm offset NOTES The device measures the hydrostatic pressure...

Страница 19: ...ing mode with the pre existed values HL High Level Calibration Fill the tank up to the highest desirable level fig 15 Press and hold the button until the led starts flashing Turn the potentiometer unt...

Страница 20: ...the calibration process without changing the other two level values 12 FILLING DRAINING OPERATING MODES ALLS600 has two programmable operating modes for liquid level control FILLING MODE and DRAINING...

Страница 21: ...level reaches the DL fig 21 fig 20 fig 21 OPERATING MODE SELECTION F D You can see the mode that the ALLS6000 unit operates by the flashing colour of the LED just after the device power supply Accord...

Страница 22: ...to the cabinet may result to fire electric shock or equipment damage Do not block the ventilated slots above and below the unit If a small object or liquid falls spills into the ALLS6000 cabinet unplu...

Страница 23: ...to be inserted and connected properly Insert and screw only one wire in each terminal in order to be in compliance with VDE norms The cable may be rigid solid from 0 2mm2 up to 4 0mm2 or flexible str...

Страница 24: ...User s Technical Manual ANALOG LIQUID LEVEL SENSOR ALLS6000 GELEC Industrial Electronics PAGE 24 15 AIR CIRCUIT DIAGRAM 16 DIMENSIONS fig 25...

Страница 25: ...EMPERATURE HYSTERESIS 0 5 VFSS full scale span TEMPERATURE EFFECT ON FSS 2 0 2 0 VFSS full scale span OPTIONAL ANALOG OUTPUT RLOAD 450K PWM 0 5V RLOAD 1M LL HL PWM 0 4 5V RLOAD 450K LL HL DIGITAL OUTP...

Страница 26: ...IONS 2 ends 4 6mm Air pipe connectors AIR CONNECTOR TYPE Manually operated AIR PIPE COMPATIBILITY Polyurethane or nylon air pipes HOUSING BOX Semi crystalline thermoplastic polyamide pa 6 6 case INFLA...

Страница 27: ...E ALLS6000 OPTIONS AND VERSIONS This Declaration covers all options and versions of this product Complies with the requirements of the European Directives 89 336 EC 92 31 EEC 73 23 EC 93 68 EEC And th...

Страница 28: ...ical Manual ANALOG LIQUID LEVEL SENSOR ALLS6000 GELEC Industrial Electronics PAGE 28 INDUSTRIAL ELECTRONICS 4 Kikladon Str Maroussi Athens Greece GR 15125 Telephone 30 210 6144074 Fax 30 210 6144074 i...

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