Parr Instrument Valve Controller - Manual (Page 3)

Valve Controllers
w w w . p a r r i n s t . c o m 3
Explanation of Symbols
I On position
O Off Position
~ Alternating Current (AC)
This CAUTION symbol may be present on the Product Instrumentation
and literature. If present on the product, the user must consult the ap-
propriate part of the accompanying product literature for more infor-
mation.
Protective Earth (PE) terminal. Provided for connection of the protec-
tive earth (green or green/yellow) supply system conductor.
Intended Usage
This controller has been designed for use with Parr
Pressure Vessels and Reactors. It has been de-
signed, built, and tested to strict physical and electri-
cal standards. However, it is the user’s responsibil-
ity to install and operate it in conformance with local
pressure and electrical codes.
If the instrument is used in a manner not specifi ed
by Parr Instrument Company, the protection provid-
ed by the equipment may be impaired.
Establish training procedures to ensure that any
person handling the equipment knows how to use it
properly.
Unpack Carefully
Unpack the equipment carefully and check all the
parts against the packing list. If shipping damage
is discovered, report it immediately to the deliver-
ing carriers. Examine the components closely for
any loose parts or shipping damage and be sure to
check all layers of packing materials thoroughly so
as not to overlook any parts which might otherwise
be discarded.
Safety Information
To avoid electrical shock, always:
1. Use a properly grounded electrical outlet of
correct voltage and current handling capability.
2. Ensure that the equipment is connected to
electrical service according to local national
electrical codes. Failure to properly connect may
create a fi re or shock hazard.
3. For continued protection against possible
hazard, replace fuses with same type and rating
of fuse.
4. Disconnect from the power supply before
maintenance or servicing.
To avoid personal injury:
1. Do not use in the presence of fl ammable or
combustible materials; fi re or explosion may
result. This device contains components which
may ignite such material.
2. Refer servicing to qualifi ed personnel.