Watson-Marlow 701S/R - Manual (Page 11)

Specification
Nominal maximum rotor speed 360rpm
Speed control ratio 50:1
Maximum power consumption 750VA
Operating temperature range 5C to 40C
Storage temperature range -40C to 70C
Weight 26kg
Noise ( one pumphead ) <78dBA at 1m
Standards IEC 335-1, EN60529 (IP55)
Machinery Directive: 89/392EEC
and EN602041
Low Voltage Directive: 73/23/EEC
and EN61010-1
EMC Directive: 89/336/EEC
and EN50081-1/EN50082-1
Care and maintenance
The 701S/R uses a permanent magnet direct current motor with a pulse-
width-modulated speed controller which provides black commutation. The
only scheduled maintenance required for the 701S/R is inspection of the
motor brushes and their replacement before their length is less than 10mm.
The life of the brushes will depend on the duty of the pump, but is expected to
be at least 2000 hours at maximum speed.
The sun gear of the gearbox in the 701R and 701RX pumpheads should be
lightly greased with a quality gear grease every one thousand hours. If
harmful liquids are spilled on to the pump, the case and pumphead should be
thoroughly cleaned with detergent and water. Strong solvents should not be
used. The sun gear of the gearbox in the pumphead should be lightly greased
with a quality gear grease after the pumphead has been cleaned.
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