M&C LA Series Instruction Manual Download Page 1

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Liquid Alarm Sensors for Conductive Media
Series LA

LA1S, LA25S

Flow Chambers

LS, LS25

With Electronic Controllers

LA1.1, LA1.4

Instruction Manual
Version 1.01.01

Summary of Contents for LA Series

Page 1: ...Liquid Alarm Sensors for Conductive Media Series LA LA1S LA25S Flow Chambers LS LS25 With Electronic Controllers LA1 1 LA1 4 Instruction Manual Version 1 01 01 ...

Page 2: ... don t hesitate to contact M C or your M C authorized distributor You will find all the addresses in the appendix of this manual For additional information about our products and our company please go to M C s website www mc techgroup com There you will find the data sheets and manuals of our products in German and English This Operating Manual does not claim completeness and may be subject to tec...

Page 3: ...er LA1 1 17 13 1 2 Electronic controller LA1 4 18 13 2 Pneumatic connections 20 14 Commissioning 21 14 1 Commissioning with a dry sensor 21 14 2 Function test 21 14 3 Adjustment of sensitivity 22 14 4 Adjustment of alarm holding function 23 15 Closing down 23 16 Maintenance and repair 23 17 Spare parts list 25 18 Appendix 25 List of illustrations Figure 1 Flow chamber LS with liquid sensor LA1S 12...

Page 4: ...losely Read this manual carefully before commissioning and operating the device If you have any questions regarding the product or the application please don t hesitate to contact M C or your M C authorized distributor 2 DECLARATION OF CONFORMITY CE Certification The product described in this operating manual complies with the following EU directives EMC Instruction The requirements of the EU dire...

Page 5: ...rate the device only in the permitted temperature and pressure ranges For details please refer to the technical data sheet or manual Install the device only in protected areas sheltered from sun rain and moisture The product should not be exposure to the elements The electronic controllers LA1 1 and LA1 4 as well as the liquid sensors LA1S and LA25S in combination with these electronic controllers...

Page 6: ...tive safety measures are not met A T T E N T I O N This means that an unintentional situation or an unintentional status may occur in case the respective note is not respected NOTE These are important information about the product or parts of the operating manual which require user s attention Qualified personnel Qualified personnel are experts who are familiar with the installation mounting commi...

Page 7: ...s Protect your eyes while working with chemicals or sharpe objects Wear safety glasses to avoid getting something in your eyes Wear protective clothes Working with chemicals sharpe objects or extremly high temperatures requires wearing protective clothes ...

Page 8: ...r for the sample gas pump or a solenoid valve is to be switched off in the gas sample conditioning system 8 TECHNICAL DATA Sensor Series LA LA1S LA25S Flow chamber LS LS25 Part No 03E1001 03E3100 03E1111 03E1120 Connection cable length ø 4 2 mm 2 core 4 m 13 1 ft 4 m 13 1 ft Each additional meter of connection cable Part No 03E9001 total max 100 meters 328 ft Pressure 0 to 4 bar g 0 to 25 bar g up...

Page 9: ...ss VO UL94 Ambient temperature 25 to 60 C 13 to 140 F Dimensions W x H x D 80 x 55 x 160 mm approx 3 1 x 2 2 x 6 3 22 8 x 100 x 111 mm approx 0 9 x 3 9 x 4 4 Weight 0 31 kg approx 0 7 lb 0 23 kg approx 0 5 lb Reversible distribution voltage 230 V 50 Hz 115 V 60 Hz factory adjusted to 230 V 50 Hz Factory deactivated 9 DESCRIPTION The M C liquid sensors LA S works on the principle of electrical cond...

Page 10: ...g one of the contacts a pump or a solenoid valve in the gas conditioning system can be switched directly and the second contact can be used as a status alarm The switching point of the electronic controller LA1 is adjustable via a potentiometer A standard adjustment to a conductivity of 100µS cm is set at the factory A T T E N T I O N Use the special electronic controller ER142 Exi without line br...

Page 11: ...n the ambient temperature in winter does not fall below the dew point temperature of the sample gas The gas inlet and outlet of the filter can be positioned right or left by moving the blue mounting bracket There is also a vertical inlet connection with a dummy plug The flow chamber has the gas inlet vertically and the gas outlet horizontally right or left depending on the type of mounting NOTE Du...

Page 12: ...c techgroup com G1 4 115 LA1 25 12 13 ø50 G1 4 17 12 ø5 25 LS Figure 1 Flow chamber LS with liquid sensor LA1S Sample gas Sample gas LA 25S LS 25 DN 8 DN 8 120 Figure 2 Flow chamber LS 25 with liquid sensor LA25S LA 1S LS ...

Page 13: ...factory For transportation the sensor LA1S of the universal filters F D is pre assembled The LA1S sensor needs only to be hand tightened with the GL25 union nut in the lower GL connection of the filter by turning it to the right NOTE Please check before assembling that the clamping ring GL25 12 of PTFE silicone is not defect and is placed on the sensor the white PTFE surface pointing to the viewer...

Page 14: ...anti kink protection back onto the sensor body using slight swivel movements Screw the GL25 union nut with sensor onto the GL connection thread of the filter 12 3 MOUNTING OF THE SENSOR LA1S INTO THE FLOW CHAMBER LS If individual components are assembled by the customer the sensor is mounted as follows Remove the union nut including the inner O ring and the pressure ring from the chamber body Pull...

Page 15: ...low chamber LS 12 4 MOUNTING THE SENSOR LA25S ONTO THE UNIVERSAL FILTER If individual components are assembled by the customer the sensor is mounted as follows Screw the attached mounting fitting with a Teflon tape into the filter body Put the sensor with pre assembled union nut and the pre assembled pressing and cutting ring into the fitting and tighten the union nut hand tight Then tighten the u...

Page 16: ... paid to the requirement of IEC 364 DIN VDE 0100 as well as the associated standards and stipulations The electronic controller LA1 1 are equipped with a mains selector switch S3 for 230 115 V At works this selector switch is adjusted to 230 V Check the desired voltage before starting and if necessary change the selector switch by using a screw driver The electronic controller LA1 4 in 24 V versio...

Page 17: ... to be connected to terminals 5 brown and 8 white In this case a bridge must be installed between terminals 6 and 7 NOTE If the older sensor LA1 LA25 or LA1 H is connected the same way as the new sensor LA1S the function of the electronic is inverted no liquid alarm liquid OK NOTE If a new sensor LA1S is connected the same way as the old sensor LA1 LA25 or LA1 H no line break control is existing T...

Page 18: ...ut see also Figure 5 The electrical connection of the sensor LA1S or LA25S is to be made on terminals 5 brown and 6 white Old sensors of type LA1 LA25 and LA1 H are to be connected to terminals 5 brown and 8 white In this case you must install a bridge between terminals 6 and 7 The voltage supply is connected to the terminals 1 L 2 N and 4 PE The alarms are connected to terminals 12 22 alarm ...

Page 19: ...www mc techgroup com LA 1 01 01 19 The center contact is connected to terminals 11 21 The relay contact 14 24 OK is energized in the good state Figure 6 Electrical connection and dimensions LA1 4 ...

Page 20: ... or the flow chamber with PTFE tape The LS25 flow chamber already has screw connections for 8 mm tubes For mounting the tube or hose lines Remove the union nuts as well as the pressure and cutting rings from the screw connection Slide the union nut then the pressure ring then the cutting ring onto the tube or hose Insert the hose or tube into the fitting and tighten the union nut hand tight Tighte...

Page 21: ...or LA1S or LA25S Short circuit the sensor electrodes with a damp finger The electronic controller LA1 1 or LA1 4 indicates an alarm i e the red LED lights up After the function test dry the electrodes with a cloth Mount the sensor back into the mounting assembly For the LA1S and LA25S sensors a cable break can be simulated by disconnecting a connection wire from the electronic controller Here too ...

Page 22: ...ctronic controller LA1 1 and then remove the cover Disassemble the sensor and clean and dry the electrodes In case of permanent alarm with a dry and clean sensor o Turn the potentiometer P1 on the LA1 1 or the Sensitivity adj screw on the LA1 4 anticlockwise to lower sensitivity until the alarm is out o Then short circuit the sensor electrodes with a damp finger The electronic controller LA1 must ...

Page 23: ...c controller push the printed circuit board back into the housing To reset the electronic controller LA1 1 manually remove the 4 cover screws remove the cover and then press button S1 see Figure 4 To reset the electronic controller LA1 4 manually press the button Al Reset at the housing front 15 CLOSING DOWN No special measures need to be taken for decommissioning 16 MAINTENANCE AND REPAIR NOTE Be...

Page 24: ...ensate possible Chemical burns due to aggressive media possible Wear safety glasses and respective protective clothes when dismounting repairing or cleaning the sensor In case of a defect of the electronic please send the instrument for repair to M C TechGroup ...

Page 25: ...LA1S LS 90E1000 FPM O Ring 14 E 2 4 8 90E1010 PVDF Ring 16 E 2 4 8 Sensor LA1S F D 90F0025 PTFE Sealing ring GL25 12ø E 2 4 8 91F0020 Union nut GL25 read E 1 2 3 Sensor LA1S LA25S 03E1001 Liquid sensor LA1S with 4 m connection cable T 1 1 1 03E1111 Liquid sensor LA25S with 4 m connection cable T 1 1 1 03E9001 Connection cable LA per meter T 18 APPENDIX Flow diagram LA1 1 115 230 V 50 60 Hz Flow di...

Page 26: ...26 LA 1 01 01 www mc techgroup com Figure 8 Flow diagram LA1 1 115 230 V 50 60 Hz ...

Page 27: ...www mc techgroup com LA 1 01 01 27 Figure 9 Flow diagram LA1 1 24V AC DC ...

Page 28: ...28 LA 1 01 01 www mc techgroup com Figure 10 Flow diagram LA1 4 115 230V 50 60Hz ...

Page 29: ...www mc techgroup com LA 1 01 01 29 Figure 11 Flow diagram LA1 4 24V AC DC ...

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