Electrical Hazards; General Safety Precautions; Component Testing And Replacement - Honeywell Touchpoint Plus Technical Handbook

2.3 Electrical Hazards

Gas detection systems contain electrical supplies that are potentially dangerous and hence suitable precautions
must be taken to prevent the risk of electrocution. This is especially important when untrained/unqualified persons
are allowed to open the enclosure (e.g. to access/remove/refit the SD Card).

2.3.1 General Safety Precautions

•
Read the relevant manual before beginning any operating or service procedures.
• Only personnel trained and certified by Honeywell are authorised to service, fit or remove internal parts.
•
Only the minimum number of trained personnel, consistent with safety, should have access to the area while work
is being carried out. If necessary, erect warning signs and barriers.
• Follow accepted working procedures and codes of practice as well as the electrical safety code for the site where
the equipment is installed.
•
Never operate the equipment under normal conditions with doors open, access panels removed or shorting links
fitted.
•
•
Always keep the area around the equipment dry and free of obstructions.
•
Switch off and Isolate the equipment if water ingress is suspected or confirmed.
• Never operate the equipment if any Mains power cable is frayed or damaged.
•
Never wear wristwatches, rings, bracelets, or other jewellery when working around electrical circuits or moving
parts.
• Take anti-static precautions when working on electronic circuits.
• Never work on electrical equipment alone.

2.3.2 Component Testing and Replacement

Before carrying out any electrical testing or component replacement:
• Read this Manual to become familiar with the location of high voltage components.
•
maintenance work is in progress.
• Always wait for 5 minutes after isolating the equipment to ensure that stored energy has dissipated.
•
Never assume the polarity of cabling or replacement components. Refer to electrical schematics or contact
Honeywell for confirmation.
•
Use only Honeywell approved replacement parts.
Only Honeywell trained and certified maintenance technicians are authorised to carry out component testing
and replacement. Unauthorised work may result in a potentially dangerous situation and will invalidate the
Antistatic Precautions are required to prevent severe damage to electronic components.
MAN0984_Iss 4_01/19
Pt. No. 3011M5001
WARNING UNAUTHORISED PERSONNEL
ANTI STATIC PRECAUTIONS
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