Page2of 2
Filename: p& t-dpg2.tcw
P&T-D
SCHEMATIC
10
9
8
+
-
LM324
U2
6
7
+
-
LM324
U2
R1
1N914
20K
+12V
FROM
DISPLAY
BOARD
LOCAL
SETPOINT
GREEN
WIRE
OFPHONE
CABLE
J1
R2
1M
1M
R7
0.1
uF
C2
D1
1
3
4
5
10
2
8
7
6
9
3
2
1
+
-
LM324
U2
R
Y
GND
U1
AD597
THERMOCOUPLE
AMPLIFIER
+12V R1
C1
1M
0.1uF
1
3
4
5
2
6
U4
MOC3030
(220V-MOC3040)
R3
100OHM
1WATT
R20
100OHM
1WATT
ACOUTPUTTOTRAP2
SCR1
Q6004
SWITCHED
ACHOT
INPUT
(BLUE)
SWITCHED
ACNEUTRAL
INPUT
(BROWN)
12
13
14
+
-
U2
LM324
BLACKWIREOF
PHONECABLE
TODISPLAYBD.
"LED"
TO
DISPLAY
BOARD
R6
1K
J1
J1
10
9
8
+
-
LM324
U3
12
13
14
+
-
U3
LM324
5
R8
10K
3
2
1
+
-
LM324
U3
R5 1M
10K
R9
10K
R10
5
6
7
+
-
LM324
U3
10K
R11
"JITTER "CIRCUIT:
OPTIMIZES
TEMPERATURE
STABILITY
THERMOCOUPLE
AMPLIFIERCIRCUIT:
DETERMINESACTUAL
TEMPERATUREOF
TRAPS
SUMMINGCIRCUIT:
ADDSTHE JITTER
ANDTHESETPOINT
TOGETHERPRIOR
TOTHECOMPARATOR
CIRCUIT
COMPARATOR
CIRCUIT:
COMPARES
THEACTUAL
TEMPERATURE
(PIN 9) TOTHE
SETPOINT
TEMPERATURE
(PIN10)
ACSWITCHING
CIRCUIT:
SWITCHESACTO
TRAPHEATERTO
ACHIEVEDESIRED
TEMPERATURE
C3
0.02uF
R15
1M
1M
1M
R13
R14
R26 1K
+6V
-6V
NO
NC
10K
R32
+12V
RELAY 'C' (TP2)
INPUT FROM
A/DBOARD
TOACTIVATE
HIGH/LOW
SETPOINT
R31
P2
20K
+12V
J1
200K
RED
WIRE
OFPHONE
CABLE
TRAP#2CIRCUIT
OFPURGE&TRAP
BOARD
48.7K
100K
R34
'BAKE': FROMA/D
BOARDRELAY 'B'.
ADDS 50 DEG. TO
TRAPSETPOINTS
1
3
4
5
2
6
U6
MOC3030
(220V-MOC3040)
R28
100OHM
1WATT
ACOUTPUTTO
SPARGEGAS
SOLENOID
SCR3
Q6004
SWITCHED
ACHOT
INPUT (BLUE)
SWITCHED
ACNEUTRAL
INPUT (BROWN)
+12V
R27
100OHM
1WATT
10K
R26
'SPARGE' :FROM
A/DBOARDRELAY 'E'.
ACTIVATESSPARGE
GASSOLENOID
Q4
2N3903
SPARGEGASCONTROL
43Hz
Q3
2N3903
DESORBTION
SETPOINT:
200DEG.C. TYP.
TOTOTALSETPOINT
ONDISPLAYBOARD
(ADSORBTION
SETPOINT:
30DEG.C. TYP.)
Date: 12/20/97
Rev.Date: 12/12/02
Q2
2N3903
R16
10K
+12V
ORANGE
BROWN
RED
RELAYCIRCUITSFORACTIVATION
OF 'VALVE1
TOVALVE1
ACTUATOR
VALVE1RELAY 'G'
INPUTFROM
A /DBOARD
YELLOWWIREOF
PHONECABLE
TODISPLAYBD.
"ACTUAL"
(PUSHBUTTON)
RLY1
By:R. Fenske
By:M.Watts
