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European Safety Systems Ltd.

   Impress House, Mansell Road, Acton, London W3 7QH 

   Tel: +44 (0)208 743 8880 

 

 sales@e2s.com     

www.e2s.com 

  

 Fax: +44 (0)208 740 4200 

Document No. D202-00-201-IS_Issue_1                   07-05-2019 

 Sheet 6 of 8 

13) Testing unit operation

The PT call points need to have the protective flip lid opened 

first and then the main plunger pressed in. 

Fig 7 -PT Push Action 

The plunger will remain in the down/latched position until 

the unit is reset. This is done by lifting the plunger back 

up using the tool reset key provided.

 

14) Maintenance, Overhaul & Repair

Maintenance,  repair  and  overhaul  of  the  equipment  should 
only  be  carried  out  by  suitably  qualified  personnel  in 

accordance with the current relevant standards: 

To avoid a possible electrostatic charge the unit must only be 

cleaned with a damp cloth. 

Units must not be opened while an explosive atmosphere is 

present. 

EN60079-19 

IEC60079-19 

Explosive atmospheres - Equipment repair, 

overhaul and reclamation 

EN 60079-17 
IEC60079-17 

Explosive atmospheres - Electrical 
installations inspection and maintenance 

Summary of Contents for GNExCP7-PT-D

Page 1: ...s for US Canada The GNExCP7PT callpoints comply with the following standards UL 60079 0 2017 Ed 6 Explosive Atmospheres Part 0 Equipment General requirements UL 60079 1 2015 Ed7 Explosive Atmospheres...

Page 2: ...C Area Classification Dust Zone 21 Explosive dust air mixture likely to occur in normal operation Zone 22 Explosive dust air mixture not likely to occur in normal operation and if it does it will only...

Page 3: ...osion proof Enclosure Check that the earth bonding wire between the two castings is secure and the O ring seal is in place When fitting the flameproof cover ensure the cover is sitting flat and correc...

Page 4: ...cable glands or blanking plugs The GNExCP7 Call Point range can be supplied with the following types of adapters M20 to NPT M20 to NPT M20 to M25 It is important to note that stopping plugs cannot be...

Page 5: ...Vdc and limited to a maximum total power consumption no greater than 6 224W Min resistor values and current limitations must be observed depending on supply voltage and type of components fitted If a...

Page 6: ...The plunger will remain in the down latched position until the unit is reset This is done by lifting the plunger back up using the tool reset key provided 14 Maintenance Overhaul Repair Maintenance r...

Page 7: ...1 M S 2 Optional Single or Double Microswitch Circuit shown wit Unit un operated GNExCP7 UL38 PCB Version M S 1 M S 2 7 8 1 2 3 4 5 6 M S 1 7 8 M S 1 IN M S 1 OUT Series Device if fitted 1 2 3 4 5 6 M...

Page 8: ...3 4 5 6 M S 1 Y M S 2 1 2 3 1 2 3 SERIES DEVICE 1 RESISTOR EOL DEVICE 1 EZ1 1 2 3 1 2 3 SERIES DEVICE 2 NONE DEFAULT LINK EOL DEVICE 2 RESISTOR B R M S 1 M S 2 Example Dual Microswitch Microswitch M...

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