Preventive Maintenance - Emerson Sempell Series Operating Instructions Manual

Sempell SerieS STe 4 ConTrol DeviCe for SafeTy valveS
Operating instructiOns

6 preVentiVe maintenance

Observe safety instruction in section 1.
Before each operation ensure that
- the planned measures will not cause any faults
of the system or injury to persons
- control device and system part are properly
disconnected. Check that all circuits are
disconnected
At the control device
- disconnect all poles, prevent accidental
reconnection
- confirm that the equipment is not live, is
earthed and short-circuited
- fit barriers or covers to neighbouring live
components
6.1 control and maintenance
Generally the pressure switches (D1, D2, D3)
in the impulse unit of the control are rarely
actuated. Check their functional readiness
once a year. Except the yearly control
(see section 4.7.1 to 4.7.6) and occasional
readjustments (see section 4.1) there is no
further maintenance necessary.
The pressure regulator r1 in the control unit of
the compressed-air supply is a simple acting
membrane regulator with automatic release of
the secondary pressure.
By moving up and turning of the regulator
handle adjust the pressure and read it at the
pressure gauge. Moving down the regulator
handle secures the adjustment.
technical data
Primary pressure max.: 18 bar g
Secondary pressure: 0 - 10 bar g
(0 - 12 bar g option)
Flow rate: 0 - 2500 l/min
Water separating: 95 %
The mechanical acting filter f in the
maintenance unit of the compressed-air supply
is provided with a sight glass.
At the bottom side is the manual water trap.
By turning the plastic nut by hand for
about 1.5 turns, drain the filter. Afterwards
tighten the nut.
The plastic nut of the water separator is at
the bottom side of the control unit behind the
compressed-air supply.
Control the filter at least yearly and if
necessary, clean and drain the filter
(see section 7.8).
technical data
Primary pressure max.: 18 bar g
Area of flow rate: 0 - 2500 l/min
Water separating: 95 %
filter element: 25 µm
Tank volume: 45 ml (cm
7 repair inStruction anD inStallation
Observe safety instruction in section 1.
Before each operation ensure that
- the planned measures will not cause any faults
of the system or injury to persons
- control device and system part are properly
disconnected
At the control device
- disconnect all poles, prevent accidental
reconnection
- confirm that the equipment is not live, is
earthed and short-circuited
- fit barriers or covers to neighbouring live
components
7.1 Storage
at delivery of the control device all connection
inlets are closed with corresponding caps.
Connection hoses and a key are attached to the
outside.
in this state the control device can be stored
without difficulties in closed, dust-free and
dry rooms lying on the fixing frame (inspection
window to the upper side).
A weather-protected outdoors storage is not
admissible.
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