Hettich EBA 21 Repair Instructions

27/42
9 General arrangement of the components
Item Components Abbrevia-
tion
plug Connection
at boards
Circuit diagram
in chapter
1 Rubber foot --- --- --- ---
2 Turning handle --- --- --- ---
3 Sight glass and gluing ring --- --- --- ---
4 Control panel A4 --- --- 12.2.7, 12.2.8
5 Frictional rubber --- --- --- ---
6 Leg spring --- --- --- ---
7 Appliance plug combination
element (without fuse holder)
Q1 --- --- 12.2.2, 12.2.3
8 Fuse holder --- --- --- ---
9 Fuse F1, F2 --- --- 12.2.2, 12.2.3
10 Lid moulding --- --- --- ---
11 Hook --- --- --- ---
12 Centrifuge chamber --- --- --- ---
13 Motor cover --- --- --- ---
14 Packing ring --- --- --- ---
15 Covering foil --- --- --- ---
16 Speed sensor B3 X4 A1 12.2.2, 12.2.3,
12.2.5
17 Motor M1 S101 A2 12.2.9, 12.2.10
18 Rubber-metal bearing --- --- --- ---
19 Anti-twist device --- --- --- ---
20.1 Imbalance switch
(old version)
S1 X3 A1 12.2.2, 12.2.3,
12.2.5
20.2 Imbalance switch
(new version)
S1 X3 A1 12.2.2, 12.2.3,
12.2.5
21 Supply board A1 --- --- 12.2.2, 12.2.3,
12.2.4, 12.2.5
22 Frequency converter A2 --- --- 12.2.9, 12.2.10
23 Flat ribbon cable 16-pole --- A1/X2,
A4/X1
A1, A4 12.2.2, 12.2.3,
12.2.4, 12.2.5,
12.2.7, 12.2.8
24 Flat ribbon cable 10-pole --- A1/X9,
A2/S501
A1, A2 12.2.2, 12.2.3,
12.2.4, 12.2.5,
12.2.9, 12.2.10
25 Ferrite ring
(only in 230 V version)
L2 --- --- 12.2.2
26 Mains choke coil L1 --- --- 12.2.9, 12.2.10
27 Brake resistor R1 P1, P10 A2 12.2.9, 12.2.10
28 Overtemperature fuse F3 --- --- 12.2.9, 12.2.10
29 Radio interference suppression
filter
Z1 --- --- 12.2.2, 12.2.3,
12.2.5
30 Lid lock Y1 X5 A1 12.2.2, 12.2.3,
12.2.5

Hettich EBA 21 Specifications

General

Brand	Hettich
Model	EBA 21
Category	Laboratory Equipment
Language	English