DLab OS20-Pro - Chapter 1: Working Principle; Introduction

1
Chapter 1: Working Principle
1.1 Introduction
FIG.1
You can mix the sample in container by using Overhead Stirrer with stirring impeller blades. The
high viscosity samples can be mixed by using strong stirring force.
Fig. 1 is the schematic diagram of OS40 (20)-Pro Digital Overhead Stirrer. On control panel of the
instrument, there are LCD display, mode button, speed control knob, speed/torque indicator,
power/overload protection indicator, and power switch. And on the back of instrument, there are
RS232 interface and power outlets. After properly connect the power cord and turn on power
switch, you can set experimental conditions on the control panel by speed control knob, real-time
observe setting values and actual values of parameters on LCD screen.
Stirring impeller is optional. Now, four models are available, and they can mix different
concentrations of the samples as tools of OS40 (20)-Pro.
For the control panel settings and functions of various types of Overhead Stirrers,
speed
control
knob
LCD
display
LED
display
RS232
Interface
OS20-Pro
Type Ⅰ √ √
OS40-Pro
Type Ⅰ √ √
OS20-S
Type Ⅱ √
OS40-S
Type Ⅱ √
LCD Display
Drill chuck
Mode Button
Speed Control Knob
Speed/Torque Indicator
Power/Over load Indicator
Power Switch