General Information - Seca 644 Series Service Manual

General information

1 General Information
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These service instructions are intended for specialist staff responsible for
maintenance and repair of the devices. These persons must be familiar with all
the relevant electro-technical regulations and must adhere to them any time.
These instructions are not suitable for users without specialist knowledge.
These instructions
[374|376|378|634|635|644|645|656|657|664|665|674|675|676|677|684|685|703|
704|264|274|284|285|954|957|959|963]equipped with NEC2 electronic modules.
The device types for which these instructions apply are listed in the section
headings. There are some identical models with NEC1 electronic modules.
These instructions
What is the structure of this document and how should you read it? Section 1
provides a short overview of the most important points for service. We
recommend you should read it completely. Section 2 deals with the
maintenance of the devices, i.e. work that may have to be carried out more
frequently. This section can be read as and when required. Troubleshooting is
covered in section 4, where you find detailed descriptions of various
measurements intended to identify specific errors. Starting point for
troubleshooting is section 3, which includes an overview of error descriptions
and the inspection steps required to identify them.
Type Plates
1.1
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To enable you to identify the device, information about the model and serial
number is found on the underside or on the frame of the device (see Note down
this information so that you have it on hand in case you need to contact us for
queries or spare parts orders.
Figgure 1: Typeplate (left approved, right non approved)
14.11.12/RLEU/ARI/MRE
describe how
are not
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to service
valid for those
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the devices
types.
30-34-00-812c