720SN, 720UN and 720DuN with 720R pumphead


Catalog excerpts

720SN, 720UN and 720DuN with 720R pumphead - 1

Watson-Marlow Pumps COMMON FEATURES AND BENEFITS • Flows up to 2,000 litre/hr and 2 bar maximum operating pressure with single channel 720R pumphead • Continuous tubing from source to delivery • 3,600:1 control ratio (0.1 to 360rpm speed range) • Display pumphead speed or calibrated flow rate • Manual control flow calibration and MemoDose for single shot dispensing • Maintenance-free brushless DC motor • Dual voltage 100-120/200-240V 50/60Hz power supply range, 350VA • Optional optical leak detector and fluid management TECHNICAL DATA Functionality Enclosure - ingress protection rating Manual control Keypad speed control with simple calibration to display flow Comprehensive calibration for flow rate display; metric or imperial units Numeric keypad for entry of speed, flow or PIN code Cumulative volume indication Remote control Run/stop, direction change, auto/manual mode, leak detector input (via contact closure or 5V TTL to 24V industrial logic) Remote operation of MemoDose (foot/hand-switch or logic input) Four programmable digital status outputs through 24V, 30W relays Analogue speed control Software programmable inputs; 0-10V, 1-5V or 4-20mA Analogue outputs; 0-10V (8 bit resolution) Analogue outputs; 0-10V, 4-20mA (8 bit resolution) Keypad/analogue input scaling (replacement of diaphragm pumps) Frequency output; 0-768Hz RS485 digital communication Digital network serial control Security Basic security code to protect set-up Dual operator/supervisor PIN code protection of pump settings

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720SN, 720UN and 720DuN with 720R pumphead - 2

PERFORMANCE 720 cased pumps' performance limits 0.25 bar (3.6 psi) *The maximum speed is reduced at increased discharge pressures to ensure safe running of the pump. 720SN, 720UN, 720DuN Ingress rating Enclosure Suitability Humidity Temperature Pump weight Control ratio Torque rating Noise Standard Power supply IP66 / NEMA 4X Watertight, dustproof Corrosion resistant for heavy industrial environments Condensing 10-100% RH 5C to 40C (40F to 104F) 25kg (55lb) 3,600:1 Max 2.5Nm(shaft, x 4 at pumphead) < 85dB(A) at 1m CE, cETLus 100-120V/200-240V 1ph 50/60Hz, 350VA Keypad Switch-plate Rear...

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