WHEATON UniSpense
®
PRO Peristaltic Pump
WHEATON | 800.225.1437 (U.S. & Canada Only) | 856.825.1100 | www.wheatonsci.com| P/N 50099073 Rev. 2/2/10 Lit. No.8734
5
3.0 Specifications – UniSpense® PRO
Operating Voltage:
Nominal 100-240 VAC 50/60 Hz
Power Consumption:
37 watts maximum
Fuses:
2.0 AT 5X20MM 250V – (100-120V)
1.0 AT 5X20MM 250V – (220-240V)
Fixed Operating Speeds:
75 and 150 RPM (selectable)
Installation Category:
Class II
Environmental:
Operating temperature: 15°C to 40°C
Humidity:
80% up to 31°C / 50% at 40°C
Altitude limit: 2000 meters
Overall Dimensions:
7” H x 8 ¾” W x 13” D (in)
(includes attached pump head)
17.8H x 22.3W x 33.0D (cm)
Weight:
11.8 lbs, 5.4 kg
Available WHEATON Tubing Sizes:
2,3,6,8 mm ID
Maximum Dispense Range for
All Tubing Sizes:
.01 - 9999.99 mL
Approximate Flow Rate Ranges
For Various Tubing Sizes, +/- 3%:
2.0mm ID: 0.5 mL/sec and 1.0 mL/sec
3.0mm ID: 1.0 mL/sec and 2.0 mL/sec
6.0mm ID: 3.5 mL/sec and 7.1 mL/sec
8.0mm ID: 5.6 mL/sec and 11.2 mL/sec
Vertical Head Height:
APPROXIMATELY 6 FT (2 METERS)
Ingress Protection Rating:
31
4.0 Introduction
The UniSpense
®
PRO is the latest generation liquid dispenser from WHEATON Industries, Inc., which
features precision microprocessor control of a wide range of dispensing parameters.
4.1
The Peristaltic Pump Process
Fluid is contained within a flexible tube, which is placed in the precision pump head. The center rotor, with
a number of rollers, compresses the flexible tube. As the rotor turns, the part of tube under compression
closes and forces the fluid to be pumped to move through the tube. After the roller passes, the tube
opens to its natural state and fluid flow is induced to the tubing. This process is called peristalsis. The
pump has no contact with the fluid being transferred.