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Related Manuals for Meech 977CM
Summary of Contents for Meech 977CM
- Page 1 Operating Manual Model 977CM Pulsed DC Controller...
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Page 3: Table Of Contents
Setting the Alarm Point Locking and Unlocking the Controls Changing the System Set Up Remote On/Off Feedback Feedback Setup Feedback Alarm Maintenance Repairs And Warranty CE Approval Specification 977CM Case and Mounting Detail © Meech Static Eliminators Ltd., 26.10.2017 issue 2... -
Page 5: Introduction
Introduction The Model 977CM Pulsed DC controller is designed to power Meech Industrial Pulsed DC ionisers, including: 971 Ionising Bar „ 261 Ionising Nozzle „ 261 Ionising Flexi-Nozzle „ The unit is mains powered with an in-built switchmode power supply to allow its use on all mains voltages and frequencies. - Page 6 A software lock allows the front panel controls to be locked to prevent unauthorised adjustment of the ionising system. An input for a Meech 988 Feedback sensor bar facilitates closed-loop feedback control of the system, together with outputs for data logging etc.
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Page 7: Inspection
Inspection The Model 977CM Pulsed DC controller was carefully packed at our factory in a container designed to protect it from accidental damage. Nevertheless, we recommend careful examination of the carton and contents for any damage. If damage is evident, do not destroy the carton or packing material and immediately notify the carrier of a possible damage claim. -
Page 8: Features
Rate: 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. Balance: Balance of the Positive and Negative outputs in Percent. The balance can be biased to positive or negative to give the most accurate neutralisation. -
Page 9: Controls
Meech user interface icons Controls Samples of Meech user interface icons Four buttons control the 977CM: s of Meech user interface icons Moves the cursor up and increases numerical values Menu: Enters and exits the main system menu... -
Page 10: Installation
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 on the right hand side of the unit. - Page 11 Connect ionising equipment using grey HT connections. Connect IEC mains cable. Input voltages from 100 to 240V, 50 or 60Hz are acceptable.
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Page 12: Operation
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. - Page 13 Samples of Meech user interface icons Samples of Meech user interface icons Samples of Meech user interface icons To set the Start Voltage and Ion Output Set Point es of Meech user interface icons Press to enter menu Press to enter option 1 “Power”...
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Page 14: Setting The Rate
Setting the Rate The 977CM features a variable output frequency. The frequency that should be set depends on the ionising product and the distance to the target object. Ionising Bars: For best operation at long distance a slow rate should be set. -
Page 15: Setting The Balance
Setting the Balance The output of the 977CM can be biased to negative or positive. The adjustment changes the percentage of time that each HT output is switched on. The maximum bias is 80% to either positive or negative. Time... -
Page 16: Setting The Alarm Point
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. A remote alarm can also be triggered using the alarm relay connections on the output socket. -
Page 17: Locking And Unlocking The Controls
Use the up, down and buttons to enter the three digit code. Press to unlock the controls. If the three digit code is forgotten or lost, contact your local Meech office or your „ Meech distributor to get the Master Unlock Code. -
Page 18: Changing The System Set Up
When a Meech 988 Feedback bar is connected to the 977CM a bar chart on the LCD display shows the residual balance of static charge on the material after passing the ionising bar. The feedback gain adjusts the sensitivity of the bar graph. -
Page 19: Remote On/Off
Input/Output Connections Remote On/Off The output of the 977CM can be turned on and off remotely via the socket located on the connection panel. A 3.5mm Jack plug connected to volt-free contacts will allow the 977CM to be switched on when the contacts are made. -
Page 20: Feedback
Meech model 971 Pulsed DC Ionising bars. In normal operation, the 977CM operates at a fixed rate and balance. The frequency is set dependent on the distance from the ionising bar to the target material. Using a static locator (983v2) the charge on the material after it has passed the ionising bar can be measured. -
Page 21: Feedback Setup
The positioning of the sensor bar is critical. It must be located such that it detects the voltage on the 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. -
Page 22: Feedback Alarm
Use the front panel controls to set the correct output voltage (page 9) and the rate (page 11). The 977CM will now continuously adjust the balance of the output to attain the most accurate neutralisation of charge possible. Feedback Alarm The feedback system features an alarm that indicates when the system is not neutralising charge within preset limits. -
Page 23: Maintenance
Maintenance The only maintenance required is that the exterior of the 977CM Pulsed DC Controller should be cleaned regularly with a dry cloth to keep it free from dust and other contaminants. Repairs & Warranty The 977CM Pulsed DC Controller is warranted by Meech Static Eliminators Ltd to the original purchaser against defects in material and workmanship for one year after purchase. -
Page 24: Ce Approval
CE Approval An EC declaration of conformity for this product exists in respect of the Low Voltage Directive: 72/23/EEC (“LVD”) & Electromagnetic Compatibility Directive: 89/336/EEC (“EMCD”) Specification Input connection IEC Socket C13 Input voltage 100 V - 250 V AC Input current 40 mA maximum Input frequency... -
Page 25: 977Cm Case And Mounting Detail
977CM Case & Mounting Detail... -
Page 28: Meech Static Eliminators Ltd., 26.10.2017 Issue
Meech International Meech Static Eliminators USA Inc Meech Elektrostatik SA Meech CE 2 Network Point 2915 Newpark Drive Kaiserbaracke 166 Gábor László utca 2 Range Road, Witney Norton, OH 44203 B-4780 St.Vith Budapest 1041 Belgium Hungary OX29 0YN, UK Tel: +44 (0)1993 706700 Tel: +1 330 564 2000 / 1 800 232 4210 Tel.: +49 (0)6555 3733 399...
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