background image

 

 

KMS-2/Exia/Exd Transmitter 

Installation and Operating Manual 

 
 
 
 

 

 

 

 

Page 8 of 16                                        KMS-2:Exia/Exd IOM 

                                     

Rev H    18/05/10

 

 

           

 

 

ATEX 

 

 

 

9.  Press the ‘Span’ button until the ‘Span’ LED stays on 
10.  Wait until the ‘Span’ LED extinguishes. (output 20mA) 

 

 

If the optional LCD is fitted the display will read ‘CAL’ during the setting process. 
The measuring range can be set within the factory limits with a maximum turndown of 50%, 
If  an  error  is  detected  during  the  ranging  process  the  unit  will  default  to  the  previously 
saved values the Relevant LED will flash if ranging failed.  
 

Inverse output 

The output is normally set so that the 20mA point is at the Head shell end. If it is required to mount the 
head shell at the bottom the output can be inverted by following procedure.  

1.  Move the float to approximately 50% of range 
2.  Set the ‘Zero’ level as 2-5 above 
3.  Move the float to the required maximum level 
4.  Set the ‘Span level as 7-9 above, 
5.  Move the float to the required minimum level zero level. 
6.  Set the ‘Zero level as 2-5 above. 

The unit will then automatically invert the output. 

 

Caution 

The  float failure  and  write  protect  switches  should  be  set  to  the  ‘OFF’  position  before 
adjustment to the ranging are made, and reinstated as necessary afterwards.  
It is important that the float is kept stationary for approximately 10 seconds before and 
after operation of the calibration buttons to ensure that the output signal has stabilised 
to the correct value. 
 

 

Low level alarm 

The Low Level alarm output signal will change the output to 3.8mA if the float drops more than 13mm 
below Zero point. When off the output will remain at 4mA below the zero point until the return signal is 
lost i.e. the sensor is no longer sensing the magnetic field then output will change to 22mA. 
 

1) Write Protect 

 

 

Up  

 

Range setting inhibited 

 

 

Down    

 

2) Alarm Function 

Up   

 

Low Level  

(3.8mA) 

Down    

No Alarm Output  

 

 

Remains at 4mA 

 Fig. 6 

Configuration switches 

 

 

 

Caution

 

Turn power off before changing alarm switch settings to prevent unexpected changes in 
loop current. Ensure that the write protect is set to ‘ON’ after changes to range 
adjustments. 
 

 

 

FIXED OUTPUT

 

 
To  allow  for loop  calibration the  transducer  output  can  be  fixed  to  either  4  or  20mA.  The  zero  or  span 
button should be depressed until the respective LED lights; the output will then remain static. To reset to 

 

 

 

Содержание KMS-2

Страница 1: ...KMS 2 Magnetostrictive Level Transmitter Please retain for future use Revision H File Exd kms 2 iom revH doc Installation and operating manual ...

Страница 2: ... Installation 3 Magnetic Level Gauge Application 4 Immersion Application 5 Electrical Connections 6 Connection Cable Selection 6 Adjustment and Configuration 7 Painting and coatings 9 Certification 10 Special Conditions for Safe Use 10 Fault Analysis Sheet 12 Maintenance 12 Technical Data 13 ...

Страница 3: ...lation Information on proper electrical installation Safety information Read these instructions before installation and putting into operation Installation commissioning and maintenance should only be carried out by suitably qualified personnel in conjunction with these instructions Comply with the relevant safety regulations when using the equipment The transmitter must not be modified as this wi...

Страница 4: ...ment the resulting magnetic field reacts with the field from the magnetic float to produce a return signal The time taken for the return signal to be detected enables a level measurement to be made since the precise velocity of the return signal along the sensing element is known Output Signals Analogue Output The process variable and error status are transmitted over the current loop with values ...

Страница 5: ...et For Exd applications the probe assembly is inserted into a vented sleeve configuration Caution When using an adjustable sealing gland ensure that the maximum ambient temperature for the electronic housing is not exceeded See technical data section Dependent on the length of the sensor tube an anchor point may be required at the bottom of the tank Where the transmitter is supplied with an adjust...

Страница 6: ...nd Operating Manual Page 4 of 16 KMS 2 Exia Exd IOM Rev H 18 05 10 ATEX Fig 1 KLINGER RED WAFERS IN BOX INDICATE DAMAGED FLOAT BOTTOM SIDE MOUNT SECTION SHOWING TYPICAL TRANSMITTER MOUNTING ARRANGEMENT TOP MOUNTED HEADSHELL UNIT TOP SIDE MOUNT ...

Страница 7: ...0 areas refer to the section covering Special Conditions For Safe Use under Certification Fig 2 Immersion Application Ensure that the PFA PTFE washer is correctly fitted to prevent the risk of sparking if the float was to hit the stop Ensure that the electronic assembly is maintained within the certified ambient temperature range consult sales office to determine correct offset ...

Страница 8: ... provided Hazardous area Installation The installation of this unit must be in compliance with the applicable national requirements i e EN60079 14 Intrinsically Safe Circuits The connection cable shall be identified to prevent confusion with non intrinsically safe circuits where a colour code is used it should be light blue The total inductance and capacitance of the cable shall not exceed the val...

Страница 9: ...justment The measuring range of the unit is set at the factory If the default range is unsuitable or adjustment is required the following procedure should be followed With reference to Fig 5 1 Set the float to the minimum level 2 Press the Span and Zero buttons until both LED s flash alternatively output 12mA 3 Release buttons 4 Press the Zero button until the Zero LED stays on 5 Wait until the Ze...

Страница 10: ... Caution The float failure and write protect switches should be set to the OFF position before adjustment to the ranging are made and reinstated as necessary afterwards It is important that the float is kept stationary for approximately 10 seconds before and after operation of the calibration buttons to ensure that the output signal has stabilised to the correct value Low level alarm The Low Level...

Страница 11: ...H 18 05 10 ATEX normal operation either depress the opposite button or cycle the power Coatings and painting The maximum non conductive coating thickness allowed for the transmitter housing is limited to 200 microns All coated Exd units must be earthed accordingly an external earth post is provided ...

Страница 12: ...re Not Tested 61000 4 11 Voltage Dip interruptions Not applicable Not Tested CERTIFICATION Certificate No s Baseefa 09 ATEX 0085X IECEx BAS09 0027X Explosion protection Type Ex d Gas Group IIC ATEX Approval Type II 2G Notified Body No CE 1180 Special Conditions for Safe Use The integral probes may be used with process vessels at elevated temperatures up to 250o C however the connection transmitter...

Страница 13: ...r and transmitter Unit incorrectly calibrated Carry out calibration procedure Continual reading of 22mA Alarm Float Under magnetised Check with spare float if available Float stuck or damaged Check against visual display if fitted Check float condition Output static at a particular level External magnetic interference Check for external magnetic devices in vicinity XXXX marks not inline with vesse...

Страница 14: ...5mm 2 5mm Supply voltage Nominal 24VDC Minimum 12V Maximum 28V Current Output Measured Current range 4 20mA 0 1 Alarm Current 3 8mA 22mA Upscale 22mA Fault Downscale 3 8mA Low level Fixed Output 4 or 20mA 0 1 For loop calibration Operating Temperatures See certification section for details when used in a potentially explosive atmosphere Ambient range 50 C 60 C 5 C 60 C When LCD Fitted Process rang...

Страница 15: ...mitter Installation and Operating Manual Page 13 of 16 KMS 2 Exia Exd IOM Rev H 18 05 10 ATEX Where ambient conditions are outside this range additional insulation or shielding will be required please consult sales office ...

Страница 16: ...TC FLUID CONTROL LTD UNIT 4 THE INTERCHANGE WESTED ROAD SWANLEY KENT BR8 8TE UK TEL 44 0 1322 622400 FAX 44 0 1322 660621 E mail instruments tc fluidcontrol com ...

Отзывы: