Grant OPTIMA RANGE GD120 User Manual

R8
10K
(4K7)
R1
390R
R12
T24
T25
T6
PL7/4
IC 3
C2
470µ
C1
100µ
D1
1N4006
D2
15V
C9
0µ1
+12V
VR1
10K
R13
1K
R7
470R
R2
10K
R3
180K
C8
1µ
C10
1µ
R4
100K
R6
100R
R5
220K
+
_
DB1
C4
2200pF
C3
2300pF
R10
270K
(180K)
D3
1N4006
T1
C7
220
16V
µ
C5
1000µ
C6
0µ1
+5V
IC 1
IC 2
IC 4
OPTO-ISOLATOR
2
8
5
5
8
2
1
3
6
7
2
1
3
4
6
3
6
7
8
10
9
1
4
5
2
PL7/5
PL7/3
PL7/1
PL7/6
PL7/2
PL7/7
PL5/1
FS 1
FS 1
FS 2
MAINS
SWITCH
IEC
MAINS
SOCKET
110V UNIT
230V UNIT
L
N
E
LIVE
(smooth wire)
FS 2
NEUTRAL
(ribbed wire)
HEATER
HEATER
NEON
R9
270K
(180K)
T21
T23
T19T20T18
T4
T3
T2
T7
T3
M
FLOAT
SWITCH
COVER
COVER
OVERTEMPERATURE
CUT OUT
(GD 120 ONLY)
ALARM
NEON
CHASSIS EARTH BRKT
DISPLAY PCB
12V UNREG
POWER SUPPLY PCB
from IC 1
PROBE
5V REGULATED
0V
PL5/2
Fig 1 Power Supply Circuit Diagram GD100/100L/120/120L
NOTE:
RESISTOR VALUES SHOWN;
230V version
(110V version)
GD100/GD120
Part No. 17592/Issue 1 July 2002
Page 19

Grant OPTIMA RANGE GD120 Specifications

General

Brand	Grant
Model	OPTIMA RANGE GD120
Category	Temperature Controller
Language	English