Watson-Marlow 620U - Manual (Page 8)

Watson-Marlow 620UN, 620U, 620SN, 620S User Manual 8
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.
There are moving parts inside the pumphead. Before opening the tool-
unlockable pumphead guard, ensure that the following safety directions are fol-
lowed.
Ensure that the pump is isolated from the mains power.
Ensure that there is no pressure in the pipeline.
If a tube failure has occurred, ensure that any fluid in the pumphead has been
allowed to drain to a suitable vessel, container or drain.
Ensure that protective clothing and eye protection are worn if hazardous fluids
are pumped.
Primary operator protection from rotating parts of the pump is provided by the
pumphead safeguard. Note that safeguards differ, depending on the type of
pumphead. See the pumphead section of this manual: 26.
Secondary operator protection from rotating parts of the pump is provided by
electrical interlocking of the pumphead guard. This function will stop the pump
if the guard is inadvertently opened while the pump is running. For details of
permissible pumphead orientations, see the pumphead section of this manual:
26.
This product does not comply with the ATEX directive
and must not be used in explosive atmospheres.
This pump must be used only for its intended purpose. The pump must be accessi-
ble at all times to facilitate operation and maintenance. Access points must not be
obstructed or blocked. The pump’s mains plug is the disconnecting device (for iso-
lating the motor drive from the mains supply in an emergency). Do not position the
pump so that it is difficult to disconnect the mains plug. Do not fit any devices to the
drive unit other than those tested and approved by Watson-Marlow. Doing so could
lead to injury to persons or damage to property for which no liability can be accept-
ed.
If hazardous fluids are to be pumped, safety procedures specific to the particular
fluid and application must be put in place to protect against injury to persons.
The exterior surfaces of the pump may get hot during operation. Do not take hold
of the pump while it is running. Let it cool after use before handling it.
No attempt should me made to run the drive without a pumphead fitted.
The pump weighs more than 18kg (the exact weight depends on model and pump-
head—see 8 Pump specifications). Lifting should be performed according to standard
Health and Safety guidelines. Finger recesses are built into the sides of the lower
shell for convenience in lifting; in addition, the pump can conveniently be lifted by
grasping the pumphead and (where fitted) the 620N module at the rear of the pump.