Watson-Marlow 205S - Manual (Page 6)

6
Error messages
If a fault condition is detected in the drive unit it will stop, all keys will be disabled, and the display will flash:
Er1 Tachometer fault
Er2 Over temperature error
Er3 EEPROM error
Er4 EEPROM read error
Er5 EEPROM write error
Er6 EEPROM exhausted error. There is a maximum number of times the EEPROM can be written to.
If Er6 is displayed, the EEPROM must be replaced.
Er9 RAM corruption error
Care and maintenance
The only scheduled maintenance of the 205S or 205U is to inspect the motor brushes and to replace them before
their length is less than 6mm 1/4". The life of the brushes will depend on the duty of the pump, which is expected to be
at least 3,000 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 should use 15 ml of the recommended lubricant, which is RD-105, this is a SAE 30
mineral oil loaded with molybdenum disulphide to form a soft fluid grease.
205S / 205U Specification
Maximum rotor speed 90rpm
Minimum rotor speed 0.5rpm
Voltage/frequency 100-120/220-240V 50/60Hz
Power consumption 100VA
Shaft Torque 2.2Nm
Operating temperature range 5 to 40C
Storage temperature range -40C to 70C
Weight 3.8kg (8.4Ib)
Noise <70dBA at 1m
Standards IEC 335-1, EN60529 (IP31)
Machinery Directive 2006/42/EC
EMC Directive 2004/108/EC
Pumphead installation
If the pumphead is fitted ignore this section (applicable for all cassette pumpheads).

Remove the planetary gear system cover by pulling gently towards the front of the pumphead.

Apply grease to the drive tongue, align to pumphead centre shaft and locate together.

Tighten the socket head retaining screws at each side of the pumphead with a 5mm A/F ball ended Allen key.
Replace the cover.