F783E Ex
‐
ia
Pg 32
00
‐
ISN
‐
203_Rev B
29/01/2021
Danger
‐
high pressure!
Before loosening lines and valves, turn o
ff
the pressure and vent the lines.
Danger of explosion when used in explosive atmospheres (only in the event of a fault in zone 2)
Opening the control top in an explosive atmosphere is only allowed in a non
‐
energised state
DANGER
!
Risk of injury due to electric shock!
Before reaching into the system isolate the power supply when it is deemed the power supply could be capable of
causing injury from electric shock!
Observe applicable accident preven on and safety regula ons for electrical equipment!
Risk of injury from improper disassembly!
Disassembly work should only be carried out by quali
fi
ed personnel and only with the appropriate tools
WARNING
!
Prior to star ng work, check the system status. Con
fi
rm all system power is isolated and it is safe to disconnect cables
!
Procedure:
Cable gland version
Open the control head (follow the instruc ons in chapter 8 “Opening and closing the housing” if in doubt).
Disconnect the cable termina ons from the terminal block. Slacken the gland nut and pull the cable through the gland.
Loosen the pneuma c connec ons (for detailed instruc ons see chapter 9 “Pneuma c installa on”.
Remove the two M6 caphead screws that retain the control head to the actuator.
Li the control head clear of the actuator and any target.
If necessary, remove the target and any adaptor plates (if
fi
ed).
Re
fi
t the cap to maintain the internal components in good condi on.
Store or dispose of the control head in accordance with the guidelines in chapter 13
Summary of Contents for F783E
Page 1: ...F783E Ex ia Pg 1 00 ISN 203_Rev B 29 01 2021 Opera ng Manual ...
Page 5: ...F783E Ex ia Pg 5 00 ISN 203_Rev B 29 01 2021 This page le blank ...
Page 13: ...F783E Ex ia Pg 13 00 ISN 203_Rev B 29 01 2021 This page le blank ...
Page 15: ...F783E Ex ia Pg 15 00 ISN 203_Rev B 29 01 2021 Fig 1 Structure of the control top ...