DLab OS20-S Instrukcja serwisowa - Strona 5
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1 Front Guard
5 Knob
9 Master Control Board
13 Photoelectric switch
17 Spindle Pulley
20 Ø 4 Elastic Pad
24 M4*15 Socket Hexagon Screw
27 Rail
30 Rear Guard
34 Driven Board
Fig. 4 illustrates the structural components of OS40 (20)-Pro, and Fig. 5 is the Exploded View of
OS40 (20)-Pro. Guard module includes front guard, Membrane, knob, power switch, rubber cap,
LCD PCB, knob switch, and PCB clamp and so on. Control modules are consisted of rear guard,
Driven Board, power outlet, RS232 interface and bar and so on. The movement module is
composed of motor, coded disc, shaft, motor pulley, bearing pulley, bearing, belt, photoelectric
switch, lower support plate and so on.
Stirring: Motor drives shaft to rotate though pulley, and further the shaft drives stirring
impeller fixed on it to rotate. Thus, the target sample is stirred.
Speed feedback: the motor speed is accurately measured by the coded disc fixed on the Shaft
along with photoelectric switch and a feedback is given. (OS40(20)-Pro)
LCD display: LCD PCB is connected to Driven Board and displays user's settings and current
equipment operation information.(OS40(20)-Pro)
Chapter 2: Removal and Installation of Instrument
When instrument failure occurs, first, you should conduct a failure analysis; if the failure is caused
by the damage of instrument hardware, the related component must be repaired or replaced. Here
are the relevant contents of the replacement and disassembly of instrument.
2.1 Removal
Tool：Cross screwdriver
2 Rubber Cap
6 Power Switch
10 Coded Disc
14 M3*10 Socket Hexagon Screw
18 Bearing
21 Lower Support Plate
28 RS232 Interface
31 M3 Hexagon Nut
35 M3*6 Pan Head Screw 36 Power Outlet
3
3 Nail
7 Knob Lock
11 Rubber Ring
15 Bearing 16 Belt
19 M4*35 Socket Hexagon Screw
22 Motor Pulley
25Ø 4 Elastic Pad
29 M5*16 Socket Hexagon Screw
32 M3*6 Copper Stud 33 Ø Ceramic Gaskets
4 Membrane
8 Knob Switch
12 Shaft
23 Motor Bearing Support
26 Motor