Watson-Marlow 720UN and 720SN User Manual
8
UN, SN
7 Safety notes
In the interests of safety, this pump and the tubing selected should only be used by
competent, suitably trained personnel after they have read and understood this man-
ual, and considered any hazard involved. If the pump is used in a manner not spec-
ified by Watson-Marlow Limited, the protection provided by the pump may be
impaired.
This symbol, used on the pump and in this manual,
means: Caution, refer to accompanying documents.
This symbol, used on the pump and in this manual,
means: Do not allow fingers to contact moving parts.
This symbol, used on the pump and in this manual,
means: Recycle this product under the terms of the EU
Waste Electrical and Electronic Equipment (WEEE) Di-
rective.
There is a user-replaceable type T5A H 250V fuse
in the fuseholder in the centre of the switchplate
at the back of the pump.
The 720N module must
be removed to allow access to the switchplate.
See 19.1
720N
module removal and replacement
. There are thermal fuses
within the pump which self-reset within 60 seconds; if they trip
an error code is displayed.
Fundamental work with regard to lifting, trans-
portation, installation, starting-up, maintenance
and repair should be performed by qualified per-
sonnel only. The unit must be isolated from mains power while
work is being carried out.
Any person who is involved in the installation or periodic maintenance of this equip-
ment should be suitably skilled or instructed and supervised using a safe system of
work. In the UK this person should also be familiar with the Health and Safety at
Work Act 1974.
