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RA 12
Lauda RA 12 User Manual
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10
/
52
Alpha
7
/202
2
3
C
ontrol
and f
u
ncti
onal
el
eme
n
ts
Alpha imm
er
sion thermostat
1
Temperature controller w
ith four segment LED displa
y
2
Heater active (yellow LED is lit)
Cooler active (blue LED is lit)
Error signal (red LED is flashing)
3
Menu functions, select and
Enter keys
4
Mains switch
5
Screw clamp
6
Tubular heat
er
7
Temperature probe Pt
100
8
Pump outflo
w with pum
p outflow reducer
8
1
2
3
4
5
6
7
9
11
Table of Contents
Prefixed Safety Notes
3
Table of Contents
4
Safety Notes
6
General Safety Notes
6
Other Safety Notes
7
Brief Operating Instructions
8
Control and Functional Elements
10
Unit Description
15
Environmental Conditions
15
Types of Unit
15
Baths
15
Pump
15
Materials
16
Temperature Indication, Control and Safety Circuit
16
Refrigeration System
16
Standard Accessories
16
Unpacking
17
Preparations
18
Assembly and Setting up
18
Filling and Emptying
21
Heat Transfer Liquids and Hoses
22
Connection of External Circuits
24
Starting up
25
Connection to the Supply
25
Switching on
25
General Key Functions and Pilot Lamps
26
Temperature Setpoint Setting Se T
27
Automatic Shutdown Timer as D
27
Defining Temperature Limits H I and L O
28
Refrigeration Unit Submenu Cool
28
Offset for the Internal Temperature Probe Cal
29
Restoring Works Settings Def
29
Standby Stby
30
Safety Functions
30
Safety Functions and Removal
30
Overtemperature and Low Level Protection
31
Overtemperature and Low Level Protection Testing
31
Unlock the Overtemperature Protection
32
Pump-Motor Supervision: Overload
32
Fault List "Alarms and Errors
33
Maintenance
34
Cleaning
34
Service Intervals
34
Testing the Heat Transfer Liquid
35
Maintenance of the Refrigeration Unit
35
Note on Repair
35
Disposal Information
35
Disposal of Refrigerant
35
Disposal of Packaging
35
Ordering Spares and Rating Label
36
Accessories
37
Technical Data and Diagrams
39
Declaration of Conformity and Product Returns
45
Copyright
48
Index
49
4
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Lauda RA 12 Specifications
General
Brand
Lauda
Model
RA 12
Category
Thermostat
Language
English
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