14
MF12 3.12
Independent Zones (control method C)
When this is ordered there are three independent thermocouples (instead of the four shown)
connected to the three controllers; the words “master” and “slave” may be replaced by “centre”
and “end”.
7.4
Control by Broadcast comms (control method B)
When this is ordered there are three independent thermocouples (instead of the four shown)
connected to the three controllers; the controllers are linked together (not shown), and remain
“master” and “slave”.
The communication between the controllers of the Eurotherm 3000 series is known as Broadcast
comms. The wiring connections between the controllers are as follows:
8.0
F
USES
&
P
OWER
S
ETTINGS
8.1
Fuses
F1-F3: refer to the example circuit diagram.
F1
Internal
supply
fuses
Fitted if supply cable fitted.
Fitted on board to some types of EMC filter.
on-board and up to 16 Amps:
32mm x 6mm type F
other: GEC Safeclip
F2
Auxiliary
circuit
fuses
Fitted on board to some types of EMC filter.
May be omitted up to 25Amp/phase supply
rating.
2 Amps glass type F
On board: 20mm x 5mm
Other: 32mm x 6mm
F3
Heat Light
fuses
May be omitted up to 25 Amp/phase supply
rating.
2 Amps glass type F
32mm x 6mm
Customer
fuses
Required if no supply cable fitted.
Recommended if cable fitted.
See rating label for amperage;
see table below for fuse rating.
Access to internal fuses is by removal of the back panel of the furnace base or control box.
Model
phases
Volts
Supply
Rating
Volts
Supply
Rating
TZF 12/38/400
1-phase
200-240
7A
110-120
12.5A
TZF 12/65/550
1-phase
200-240
10A
110-120
20A
TZF 12/65/550
2- or 3-phase + N
380/220 - 415/240
5A
TZF 12/75/700
1-phase
220-240
12.5A
110-120
25A
TZF 12/75/700
1-phase
208
15-16A
100
30-32A
TZF 12/75/700
2- or 3-phase + N
380/220 - 415/240 7A
TZF 12/100/900 1-phase
200-240
20A
110-120
40A
TZF 12/100/900 2- or 3-phase + N
380/220 - 415/240 15-16A
other models or voltages: check the rating label for details of the supply.
8.2
Power Settings
HD
HE
HF
HD
HE
HF
HD
HE
HF
master
slave
slave
