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Summary of Contents for marposs E20N
- Page 1 N N N N GRINDER ACOUSTIC CONTROLLER Operator’s Manual Manual code No. D2200004UA...
- Page 2 Iussed by: Marposs S.p.A. , Via Saliceto 13, Bentivoglio (BO) Italia MARPOSS S.p.A. does not take on the obligation of notifying possible further changes to the product. The descriptions reported in this book do not authorize any tampering by non- authorized personnel.
- Page 3 The Directive explicitly excludes from its scope of application finished products such as those manufactured and sold by Marposs. It is still indeed a widely debated matter whether the complete removal of the regulated substances could affect the reliability of the product.
- Page 4 If necessary, he can olso make interventions on the system is order to adapt it to the programming and to optimize the times of interventions on the system and therefore its production. The instructions refer to all possible configurations of the MARPOSS E20N,so only the parts relevant to specific application must be considered. Warning...
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Page 5: Table Of Contents
Troubleshooting and Maintenance ............... 14 Introduction ....................14 Alarm conditions ..................14 Ordinary maintenance................15 4.3.1 Cleaning of the electronic unit............15 4.3.2 Cleaning of the contactless microphone ........... 15 Extraordinary maintenance ............... 15 List of drawing Figure 1: E20N Front Panel ..................8... - Page 6 Operator’s Manual...
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Page 7: E20N Configuration - Front Panel
The E20N is connected to one microphone for CRASH control. • E20N with two GAP channels in switching The E20N is connected to one or two microphones for GAP control with two independent and switching channels. In case of applications with two microphones, each channel is connected to a given microphone. -
Page 8: Front Panel
1.2 Front Panel 1 GAP channel 1 CRASH channel 2 GAP channels 1 GAP channel + 1 CRASH channel Figure 1: E20N Front Panel Operator’s Manual... - Page 9 Elements on the front panel (reference “Figure 1: E20N Front Panel” on page 8). LED Bargraph scale (20 segments) for the visualization of the sound detected by the microphone. The color of the graduation of the scale changes from the value of 6,5, triggering point of the command.
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Page 10: Gap Control Programming
At first the grinding wheel must be driven to rest position, normally spinning and with the coolant off . The microphone is already mounted and connected to the E20N unit. The noise displayed by the E20N LED bargraph in this particular condition is the background noise which is a basic characteristic of the application. -
Page 11: Stable And Repetitive Background Noise
2.1 Stable and repetitive background noise Press the key , if present, and select the channel to program. On the programming area of the selected channel proceed as follows: Bring the selector 1 to the right position (the LED 3 lights up) to select the fixed gain control procedure ( Rotate the potentiometer 4 counterclockwise to "zero"... -
Page 12: Variable And Oscillating Background Noise
2.2 Variable and oscillating background noise Press key , if present, and select the channel to program. On the programming area of the selected channel proceed as follows: Bring the selector 1 to the left position (the LED 2 lights up) to select the automatic (variable) gain control ) feature. -
Page 13: Crash Control Programming
6.5 on the graduated bargraph display of the E20N (triggering point of the command). In case the above procedure leads to the definition of a CRASH limit value... -
Page 14: Troubleshooting And Maintenance
4. TROUBLESHOOTING AND MAINTENANCE 4.1 Introduction With ordinary mainterance we mean all the operations which have to be carried out periodically and whose execution does not require any specific capability and therefore they can be carried out by the users (operators, etc.). With extraordinary maintenance we mean unexpected interventions due to mechanical or electrical failures requiring an exact technical competence or particular capabilities and therefore they should be carried out by qualified personnel... -
Page 15: Ordinary Maintenance
4.3 Ordinary maintenance 4.3.1 Cleaning of the electronic unit To clean out the external side of the electronic unit and the front panel use a damp cloth. Do not use solvents or abrasive products. 4.3.2 Cleaning of the contactless microphone In case of microphone/s with contactless transmission (code 3424802000 + 3424802011), carry out the cleaning operations of the transmission faced surfaces periodically according to the use conditions (for example, with compressed air). - Page 16 Printed in Italy (20/01/06 16.30) Operator’s Manual...
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