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Operation 

Getting Started

On first use, the 977CM needs to be configured to suit the type of installation and the 
type of ionising equipment connected to it. This includes basic settings of the Output 
Power, Rate and Balance as well as alarm functionality and the lock option.

Setting the Start Voltage and Ion Output Set Point

During installation and commissioning two parameters must be set correctly to allow 
optimum performance.

1.  Start Voltage. The correct start voltage must be set, depending on the ioniser 

connected to the 977CM. The correct start voltages for Meech ionisers are:

 

 

 

971

15 kV

242

10 kV

251

  8 kV

261

  7.2 kV

271/272/273

  7 kV

 

 

2.  Ion Output Set Point: This is the target Ion Output as measured when the system 

is clean. The 977CM self adjusts to try to maintain the output at this level.  

 

„

This value should only be set when the ionisers have been cleaned, 
otherwise the performance of the system will be reduced 

During use, ionisers become contaminated which reduces their performance. The 
977CM counteracts this by increasing the output voltage to maintain a consistent 
performance. The output voltage will automatically be raised up to a maximum of 
125% of the pre-set start voltage.

10

Содержание 977CM

Страница 1: ...Model 977CM Pulsed DC Controller Operating Manual...

Страница 2: ......

Страница 3: ...Ion Output Set Point 10 Setting the Rate 12 Setting the Balance 13 Setting the Alarm Point 14 Locking and Unlocking the Controls 15 Changing the System Set Up 16 Remote On Off 17 Feedback 18 Feedback...

Страница 4: ......

Страница 5: ...i Nozzle The unit is mains powered with an in built switchmode power supply to allow its use on all mains voltages and frequencies Display is via a LCD panel with adjustment made by 4 push buttons The...

Страница 6: ...and remote alarms alert operators to the need to clean the ionisers Analogue outputs enable logging of system performance A software lock allows the front panel controls to be locked to prevent unaut...

Страница 7: ...dent do not destroy the carton or packing material and immediately notify the carrier of a possible damage claim Shipping claims must be made by the consignee to the delivering carrier In addition ple...

Страница 8: ...e Frequency of the output in Hz The output frequency is operator set according to the type of installation and the ionising equipment connected to the 977CM 3 Balance Balance of the Positive and Negat...

Страница 9: ...increases numerical values Menu Enters and exits the main system menu Down Moves the cursor down and decreases numerical values Tick Accepts and stores the displayed value Connections 1 Mains On Off...

Страница 10: ...eer This equipment must be grounded earthed via the mains cable Failure to do so can result in damage to the unit Locate the 977CM in a dry well ventilated area Allow sufficient space for the cables o...

Страница 11: ...Connect ionising equipment using grey HT connections Connect IEC mains cable Input voltages from 100 to 240V 50 or 60Hz are acceptable 9...

Страница 12: ...the ioniser connected to the 977CM The correct start voltages for Meech ionisers are 971 15 kV 242 10 kV 251 8 kV 261 7 2 kV 271 272 273 7 kV 2 Ion Output Set Point This is the target Ion Output as m...

Страница 13: ...se Samples of Meech user interface icons and Samples of Meech user interface icons to set voltage to required voltage 4 Press es of Meech user interface icons to accept value The unit will display Set...

Страница 14: ...Ionising Nozzles and Air Guns 251 261 271 should be used from 10 to 20 Hz To set the rate 1 Press Samples of Meech user interface icons to enter menu 2 Use Samples of Meech user interface icons and mp...

Страница 15: ...itive and negative ions produced by the ioniser With the help of a static locator the balance can be adjusted for more accurate neutralisation of the target material To set the balance 1 Press Samples...

Страница 16: ...e system s performance At this point the ionisers need cleaning To alert the operator to the need for cleaning the 977CM will trigger an in built audible alarm and the LCD screen will flash on and off...

Страница 17: ...o enter menu 6 Select option 5 Lock and press Samples of Meech user interface icons 7 Use the up and down button to change the value of the first digit 8 Press Meech user interface icons to move to th...

Страница 18: ...ing of sensitivity of the bar graph See the section on Feedback on page 18 for full details of how to use the Feedback system The In built audible alarm can be enabled or disabled to suit the installa...

Страница 19: ...utput mimics the bargraph on the LCD display 0 Volts equates to a sufficiently large negative voltage being detected to give full scale deflection to negative 2 5 Volts equates to no voltage being det...

Страница 20: ...ng conditions and machine running speeds This is particularly useful on rewinds where large charges can build up if the ionising system is not adjusted correctly The feedback system is primarily inten...

Страница 21: ...he material only and is not influenced directly by the Model 971 Pulsed DC Ionising bar Your Meech engineer will be able to advise you on this General examples of positioning follow Feedback Setup 1 S...

Страница 22: ...points can be reduced or increased by altering the Feedback Gain page 15 Setting a high gain value will increase the sensitivity of the system and trigger the alarm at relatively low voltage on the ma...

Страница 23: ...local distributor All products returned to the factory MUST be accompanied by a return authorisation number and must be shipped prepaid For prompt service ship the unit to the factory with the return...

Страница 24: ...rective 89 336 EEC EMCD Specification Input connection IEC Socket C13 Input voltage 100 V 250 V AC Input current 40 mA maximum Input frequency 45 65 Hz Dimensions W x H x D 190mm x 170mm x 45mm Weight...

Страница 25: ...23 977CM Case Mounting Detail...

Страница 26: ...24...

Страница 27: ......

Страница 28: ...232 4210 Fax 1 330 564 2005 email info meech com Meech Shavotech 29 2 Kharadi Off Pune Nagar Road On Old Kharadi Mundhwa Road Pune 411014 Maharashtra India Tel 91 0 703 093 8211 91 0 741 000 4817 Fax...

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