TAV 100/150
EN
18
7.5
Service and Maintenance of ATEX equipment
To ensure the required level of protection with regards to the equipment
category, check the following points:
•
Ensure that the TAV valve is regularly inspected for damage or
malfunction. If the valve is damaged it must be replaced or removed
immediately from the classified area.
•
Ensure that no explosive atmosphere and/or dust layers are present
when cleaning, servicing or inspecting the TAV valve.
•
Ensure that only original (OEM) spare parts are used.
•
Ensure that the TAV valve is not covered with thick dust layers (> 5 mm).
This is prevented by setting up routines for regular cleaning and including
these in the explosion protection document.
8
Accessories
1.
AS-set with micro switch and connection box for the pilot signal. The
switch controls the vacuum plant to make it stop when all valves are
closed and make it start again as soon as a valve is opened. A pilot signal
cable an a suitable motor starter are required to execute this function.
Fitting of the AS-set is shown in figure 4 and is also shown schematically
in figures 7. Part no. 40141550
2.
Transformer, 230/24 V AC, 60 VA in a plastic enclosure. Can feed 12
solenoid valves. Suitable for TAV 100/150 MV 24 V AC/DC. Part no.
40750100
3.
5-port valve for remote control of TAV 100/150 PC (without control
device of its own). See figure 6. Can be located 20 m from TAV 100/150.
Part no. 40680250
4.
Pressure-controlled switch. The switch controls the vacuum plant to
make it stop when all valves are closed and make it start again as soon
as a valve is opened. A pilot signal cable an a suitable motor starter are
required to execute this function. Fitting of the switch is shown in figure 5
and is also shown schematically in figure 8. Part no. 40141780
Accessories in classified locations (ATEX)
All electrically connected accessories must be installed according to applicable
regulations for EX products. This means that TAV accessories installed inside of
a classified area (i.e. zone 22) must be connected to an instrinsic safe circuit.
Pneumatic accessories without any source of ignition are not included in this
requirement. Please contact Technical Support, AB Ph. Nederman & Co. for
detailed information regarding installation of TAV accessories in classified
areas.
8.1
Spare parts
CAUTION!
Risk of equipment damage.
Use only Nederman original spare parts and accessories.
Contact your nearest authorized distributor or Nederman for advice
on technical service or if you require help with spare parts. See also
www.nederman.com.
Summary of Contents for TAV 100
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Page 7: ...TAV 100 150 7 TAV 100 150 MA TAV 100 150 PC Figures 1 2 3 4 5 10 12 9 11 8 1 2 6 7 3 A 4 B 5 ...
Page 10: ...TAV 100 150 10 14 A B A B B A B A 15 ...
Page 11: ...TAV 100 150 11 ...
Page 110: ...www nederman com ...
