1
Introduction and Description
Functions and Features
Thermo Scientific
Heraeus Fresco 17 / 21
1-5
Functions and Features
The following table contains an overview of the electrical connection data for the Heraeus Fresco 17 /
21.
Mains Supply
The following table contains an overview of the electrical connection data for the der Heraeus Fresco
17 / 21.This data is to be taken into consideration when selecting the mains connection socket.
Table 1-4.
Functions and Features
Component / Function
Description / Features
Structure / Housing
Sheet steel chassis with attached plastic housing and steel
reinforcement
Rotor Chamber
Plastic with galvanized steel reinforcement guard ring
Up to 48 ml of spilled liquids are retained in the chamber and cannot
enter the instrument.
Drive
Induction drive without carbon brushes
Keys and Display
Easy-to-clean keypad and display surface
Controls
Microprocessor-controlled
Internal Memory
Most recent data is saved
Functions
RCF-selection, temperature control, pretemp
Imbalance Recognition
Electronic in ventilated centrifuges
Door Lock
Automatic door closing and locking starting from an initial hold
position
Table 1-5.
Electrical connection data
Cat.
Mains
voltage
Frequency
Rated
current
Power
consumption
Equipment fuse
Building fuse
75002420
F
resco
17
230 V
±10%
50 / 60 Hz
1.9
A
3
2
0 W
4
A, 2-pole circuit breaker
16 AT
75002421
F
resco
17
120 V
±10%
60 Hz
3
.
9
A
330 W
8
A, 2-pole circuit breaker
15 AT
750024
0
2
75002425
Fresco 21
230 V
±10%
50 / 60 Hz
2.2 A
370 W
4
A, 2-pole circuit breaker
16 AT
75002
555
7500242
3
7500242
6
Fresco 2
1
120 V
±10%
60 Hz
4.4 A
3
8
0 W
8
A, 2-pole circuit breaker
15 AT
75002
556
