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Description

The Evaporator Service Unit (UOP20X) contains all the services and facilities to implement a laboratory evaporation system. It comprises a
feed pump and preheat system, vacuum pump, condenser, collection vessels and control console containing a full set of instrumentation,
all mounted in a sturdy steel framework.
Two mounting positions are provided for the modular evaporation columns.
Two basic variants of the UOP20X are available, dependent on whether it is required to use steam as the process heating source or pressurised hot water.
The UOP20X-STM includes a steam control valve and steam pressure gauge. It is powered from an external steam source, such as the Armfield
UOP10 or any other suitable laboratory steam supply.
The UOP20X-PHW includes a pumped recirculating pressurised hot water system complete with integral three term temperature controller.
Therefore service requirements are simply an appropriate electrical supply and a cooling water supply.
Each UOP20X includes a control console, containing all of the electrical components, controls and displays for the evaporator. Twelve process
temperatures, three conductivity readings and the vacuum level can be displayed.
It also includes preheat temperature controller, speed controls for the feed pump and recirculation pumps, the computer interface and electric
mains switching controls.
All important electronic sensors used on the unit provide outputs for data logging and analysis. The data loggers, provided with the unit, interface
between the unit and the user’s computer using two USB ports.
The educational software package enables data recording, graph plotting and provides full instructions for setting up the equipment and
performing the experiments.
The unit can also be operated in remote control mode, whereby the majority of the control panel functions can be implemented directly
from the PC.
All related theory and help texts are provided. The software requires a computer (not supplied) running Windows 7 or later with a USB port.
Although a wide range of products may be concentrated in the evaporator, the software includes algorithms so that when potassium
chloride is used, the computer display indicates the product concentrations directly. These are calculated in real-time from the
temperature and conductivity readings.
The computer software also includes a fully configurable controller for performing process control experiments.
The effect of a vacuum on evaporation temperature can be demonstrated, a vacuum pump is incorporated and a display indicates
the level of vacuum. In a double effect system the vacuum is applied to the second stage.