Watson-Marlow 505S - Manual (Page 4)

4
Manual operation
• Switch power on (drive rear panel).
• Change the set speed by pressing the Ù or Ú key. The 505S speed control ratio is 110:1. This will give a minimum speed of
2rpm for the 220rpm drive and 0.5 rpm for the 55rpm drive.
• Change direction by pressing the CW/CCW key. Check the flashing CW/CCW symbol for actual direction setting. (CW :
clockwise CCW : counterclockwise).
• Select the maximum speed: press the Ù key and the Max key together. Select the minimum speed: press the Ú key and the
Max key together.
• The keypad has a locking facility to avoid resetting or tampering. If the pump is stopped, press Stop until the padlock symbol
illuminates. If the pump is running, press Start until the padlock symbol illuminates. All keys will be disabled except for Start
and Stop. Press these keys until the padlock symbol extinguishes to unlock the keypad.
• The pump can be set to automatically restart in its operating state set prior to interruption, or set so that after power is
reconnected the pump will remain stopped. To invoke the Auto-restart facility switch off power to the pump at the mains
supply. Press the Start key down when the mains supply is switched back on until the ! symbol illuminates. Now press Start
to start the pump. This facility can be cancelled by turning the mains supply off and then pressing the Stop key whilst turning
the mains supply back on. The ! symbol will not be illuminated.
• Press Start to start the pump. Press Stop to stop the pump.
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,
however, the EEPROM must be replaced.
Er9 RAM corruption error
Care and maintenance
The only scheduled maintenance of the 505S 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 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 should use 15 ml of the recommended lubricant, which is RD105, this is a SAE 30 mineral oil loaded
with molybdenum disulphide to form a soft fluid grease.
Specification
Maximum rotor speed 55rpm, 220rpm
Voltage/frequency 100-120/220-240V 50/60Hz
Control range 110:1
Power consumption 100VA
Shaft Torque 2.2Nm
Operating temperature range 5 to 40C
Storage temperature range -40C to 70C
Weight 7.7kg (17Ib)
Noise <70dBA at 1m
Standards IEC 335-1, EN60529 (IP31)
Machinery Directive 98/37/EC EN60204- 1
Low Voltage Directive 73/23/EEC EN61010- 1
EMC Directive:89/336/EEC EN50081-1 / EN50082-1
501RL Pumphead
The 501RL pumphead has two spring-loaded working rollers, which automatically compensate for minor variations in tubing
wall thickness, giving extended tube life. The 501RL is set during manufacture to accept tubing with wall thicknesses of between
1.6mm and 2.0mm, and internal diameters of up to 8.0mm. It is equipped with a "tool lockable" guard for increased safety. This
should be locked shut whilst the pump is in use.