Watson-Marlow 505Dz - Manual (Page 13)

13
Remote
Never apply mains voltage across any pins on the 25D socket as
permanent damage, not covered by warranty, will result. No voltage
should be applied across other pins because permanent damage, not
covered by warranty, may result.
If a Watson-Marlow footswitch or handswitch is used connect a switch as shown
in the diagram. It has the same function as the Start key on the keypad.
Error messages
P R O G S A N D S E T U P
L O S T - P R E S S E N T E R
Indicates a RAM corruption or change of EPROM.
F A U L T C O N D I T I O N !
C H E C K D R I V E N O W !
Indicates that either the motor has stalled or there is a loss of tacho pulses.
Care and maintenance
The only scheduled maintenance required for the 505Dz/RL is inspection of the
motor brushes and their replacement before their length is less than 6mm (1/4").
The life of the brushes will depend on the duty of the pump, but is expected to be
at least 10,000 hours at maximum speed.
When the pump needs cleaning, remove the pumphead and use a mild solution
of detergent in water. Do not use strong solvents.
If the gearbox is rebuilt you must use the 15ml of the recommended lubricant,
which is Rocol MP, which is a SAE 30 mineral oil loaded with molybdenum
disulphide to form a soft fluid grease.
Start dose