SRI GCS Literature Detailed ex SRI website 2014 - page 746-747

Page2of 5
Filename: display-k2.tcw Date: 07/28/98 By:R. Fenske
DISPLAY-K
SCHEMATIC
OVENMAX
AND
TEMP.
ACTUAL
FROM
HEATED
ZONE
PUSH-
BUTTON
CIRCUITS
SEE
PAGE1
2,13
3,12
7,8
+
-
LM324
U1
12
13
14
+
- U3
LM324
10
9
8
+
-
LM324
U3
+12V
+12V
R3
10K
R2
100K
D6 1N4004
R1
100K
C9
1000
uF
+1.2V
+1.2V
1
3 4
5 2
6 R6
100OHM
1WATT
SCR1
Q6004
D12
1N4004
CARRIERFILTER
BAKE-OUTSWITCH
(MOMENTARY)
R1&C9PRODUCE
AFIVEMINUTE
TIMECONSTANT.
CARRIERFILTER
BAKESFORFIVE
MINUTES.
ACHOT
UNSWITCHED
FROMACHOTBUS
BLOCK (UNSWITCHED)
FROMACNEUTRALBUS
BLOCK (UNSWITCHED)
TOCARRIERFILTER+
TOCARRIERFILTER -
TOAIRCOMPRESSOR+
TOAIRCOMPRESSOR - AIRCOMPRESSOR
ON /OFFSWITCH
+12V
R8
R7
180K
R9
1K
5,10
6,9
1,14
+
-LM324
U1
3
2
1
+
-
LM324
U3
+1.2V
5
6
7
+
- U3
LM324
1
3 4
5 2
6 R12
100OHM
1WATT
SCR2
Q6004
ACHOT
UNSWITCHED
ALARM
ALARMOUTPUTTO
INTERLOCKSWITCH
ANDPOWERRELAY.
THISCIRCUITSWITCHES
OFFACPOWERTOTHE
BUSBOARDS IFTHERE
ISATHERMOCOUPLE
CIRCUITFAILURE. SEE
ACBLOCKSCHEMATIC.
THEREAREEIGHT "U1's"
TOVERIFYTHE
THERMOCOUPLERANGE
OFFIFTEENHEATZONE
CIRCUITS.
SIG - +5V
GND
SIG. IN
1.234
SIG. -
(GND)
SIG. + SIG. IN
DISPLAY
DISPLAY
TOGGLE
SWITCH
+5V
OVEN
ACTUAL
SIGNAL+
FROMALL
PUSH-
BUTTONS
SEE
PAGE1
R5
U2
MOC3030
(220V-MOC3041)
100OHM
1WATT
D7
R4
1K
CARRIER
FILTERLED
LIGHTSWHEN
FILTER ISON
D1-D4
1N914
1N914
R10
10K
R22
1K
LEDLIGHTSWHEN
THERMOCOUPLE
GOESLOW
D13
R11
100OHM
1WATT U4
MOC3030
(220V-MOC3041)
R19
100K
1M R18
1M
C10
0.01
uF
CARRIERFILTERAND
AIRCOMPRESSOR
ACCIRCUITS
ALARM
CIRCUIT
4.5V=
450DEG.C
50mV=
5DEG.C
2
S5
S4
1
0 8
4
2
6
INTERLOCKSWITCH
POWERRELAY
AC
COMMON
2
3
-12V
6
+12V
+
- U2
LF356
DISPLAYBUFFER
ANDZEROOFFSET
5
1
+12V
20K
ZERO
POT
R30
100OHM
1WATT
Rev.Date: 10/18/02 By:M.Watts
2