Meech 976 Manual de usuario
MODEL 976
Operating
Manual
Long Range DC Bar
Products shown in this document may be covered by one or more patents, patents applied for
and/or registered designs and/or trade marks. For further information please refer to our Head
Ofce or visit www.meech.com.
© Meech Static Eliminators Ltd., 5.01,2012
Contents
Introduction 3
Unpacking and Inspection 4
Installation 5
Maintenence 8
Fault Finding 10
Repairs And Warranty 15
Technical and Construction 16
CE Approval 17
Health and Safety 17
3
Introduction
The Meech Model 976 has been designed to provide highly effective long range
ionisation using Pulsed DC Technology.
The 976 Bar provides ionisation through alternating positive and negative emitter pins
mounted in a proled extrusion. The emitter pins are resistively coupled to the high
voltage pulsed DC source, rendering the emitters shockless to touch. The emitter pins
are removable to enable cleaning or replacement.
The extruded prole has been designed to enhance emitter life and allow easy
cleaning while giving linear strength. The prole incorporates “T” slots on three faces
to provide universal mounting points. The Meech Model 976 is powered by any of the
range of Meech Pulsed DC Controllers.
4
Unpacking And Inspection
Your Model 976 Bar was carefully packed at the 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. Shipping claims must be made by the
consignee to the delivering carrier.
5
Installation
The Model 976 Bar should be located in the most convenient position so that the
pins of the bar are directed towards the target area. The bar should be positioned to
give an unrestricted path for the ions to travel to the target area. It should typically be
between 300mm and 600mm away from the target area.
The Meech Model 976 can be connected to any of the Meech range of Pulsed DC
Controllers.
The Model 976 connects to the Pulsed DC Controller by plugging the male plugs,
found at the end of the bar cabling, directly into the high voltage sockets of the
controller. The plugs and sockets are marked with “+” positive and “-” negative
indicators for correct connection to the power supply.
Connect the mains supply to the Pulsed DC Controller and switch ON. The 976 Bar
will now produce Pulsed DC ionisation from the emitters of the bar.
6
The shockless emitter pins produce ions of positive and negative polarity. These,
because of the product’s unique design, propel themselves away from the emitter
points towards the target area.
Optimum static elimination can be achieved by adjustment of the “Rate” (frequency of
pulsing) and the “Balance” (proportion of positive to negative ions generated) on the
Controller.
If the bar is positioned a long distance from the target area (600mm-750mm) the
“Rate” should be set to the lowest setting. If the bar is positioned close to the target
area (150mm -300mm) the “Rate” should be set towards its maximum.
If the polarity of the static charge to be removed is known the balance can be adjusted
to give a faster decay speed.
7
I.E. a) If the static charge is known to be positive the balance should
be adjusted towards negative on the controller.
b) If the static charge is known to be negative the balance should be a
adjusted towards positive on the controller.
8
Maintenance
Ionisers require periodic cleaning. During normal operation, dirt will build-up on
the emitter pins and upon the body of the ioniser. This will cause a reduction in
performance.
Typically, weekly cleaning is sufcient. However, equipment used in some heavy
contamination areas, such as gravure printing or where plastic fumes are present, may
require daily cleaning. Equally, in a Class 100 area, cleaning may only be required
on a monthly basis. Advanced systems with performance monitoring, e.g 977cm and
904cm, will alert the operator to the need to clean the equipment before performance
drops to an unacceptable level.
Before cleaning, ensure that the equipment is switched off.
Emitter pins can be cleaned very effectively with a brush. A dry toothbrush is ideal.
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