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Hycontrol SW2, Инструкция по установке и эксплуатации

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Hycontrol Ltd V1.5 

 

Page 2             

 

 

 

CONTENTS 

 
 
 
 

1 SPECIFICATION

 .  2 

 
 

2 HOW IT WORKS

   3 

 
 

3 CONNECTIONS

 .  3 

3.1 Indicators ..  4 

 

 

4 INSTALLATION

 

4.1 Installing the Sensor in A Tank . 

5 

4.2 Cabling ..  7 

 
 

5 COMMISSIONING

 

5.1 Setting-Up   8 

5.2 Sensitivity .  8 

5.3 Response Time   9 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание SW2

Страница 1: ...ORS INSTALLATION AND OPERATION MANUAL Hycontrol Ltd Larchwood House Orchard Street Redditch Worcestershire B98 7DP UK Tel 44 0 1527 406800 Fax 44 0 1527 406810 email sales hycontrol com website www hycontrol com V1 5 ...

Страница 2: ...Page 2 CONTENTS 1 SPECIFICATION 2 2 HOW IT WORKS 3 3 CONNECTIONS 3 3 1 Indicators 4 4 INSTALLATION 4 1 Installing the Sensor in A Tank 5 4 2 Cabling 7 5 COMMISSIONING 5 1 Setting Up 8 5 2 Sensitivity 8 5 3 Response Time 9 ...

Страница 3: ...7 35 Fouling Immunity Sensitivity to fouling 1 of sensitivity to foam with Hycontrol Sensors Output Volt free c o contacts rated at 24 Volts d c at 500 mA max Connections Screw terminals Cable 4 5 core cable e g type 16 2 4C 16x0 2mm Head Polypropylene IP66 Dimensions 20mm Diameter Length 60 100 or 150cm Process entry BSPT R3 4 on standard version Materials Body 316 Stainless steel Insulators PVDF...

Страница 4: ...s own transmitter located inside the head so it can connect directly to a process controller or a pump The SmartFoam can be used to create an effective foam control system without the need for any additional transmitter It is designed to be robust for industrial use The sensor is designed using the IMA SensingTM technology which enables foam to be measured reliably even when it is covered with a b...

Страница 5: ...cture and cause false alarms Ensure 50mm of clearance exists between the end of the sensor and any other metal parts The sensor should be connected with a 4 core screened cable The cable carries the power 24V dc as well as the sensor output and in some cases the earth return signal See figure 1 for connections The sensor requires a return path for the measurement to work correctly If the foam is m...

Страница 6: ...onnected to earth ground Alternatively the earth electrode can be connected directly to the sensor process fitting as shown in figure 5 If a metal pipe is in contact with the liquid this may be used in place of an electrode It is essential that a return path is connected for the measurement to work correctly Return via ground Network metal ground electrode Plastic Tank Figure 4 Plastic tank With r...

Страница 7: ...s which open when foam is detected This can be used to switch 24V dc to a PLC or a pump Some PLC inputs can be wired directly to volt free contacts and can detect the contact closure The output contacts are provided by an isolated solid state switch The maximum load is 500mA If switching inductive loads then a suppressor or snubber should be fitted to protect the output contacts The power supply r...

Страница 8: ...ested If the test above does not trigger the sensor then there is almost certainly an earth return problem 5 2 Sensitivity Setting The sensitivity can be set by the small adjuster in the head The adjustment is from 0 9 where 0 is the lowest sensitivity The factory setting of 5 is suitable for most applications However if the foam is very light the sensitivity may need to be increased Alternatively...

Страница 9: ...ses foam can build up within a few seconds to a high level for which 4 seconds may be too slow Typical fast applications are vacuum cooling and gas stripping To change the response time remove the small white link on sw2 and refit as shown below In cases of high splashing the response time can be increased to 10 seconds See table 2 below Table 2 Response Time adjustment Application Response Settin...

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