Leakwise PS-220 - Page 45

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
GND
+15V
+15V
+15V
+15V
+15V +15V +15V
+15V
+15V
+15V
Title
Size Document Number Rev
Date: Sheet of
DWGS PSX 004 3 A
BUILT IN TEST BOARD for PS-220 Rev. Dx
Ionics Agar Environmental Ltd.
B
11Sunday, October 28, 2007
GE Analytical Instruments
TO FAIL RELAY
DET +
RAMPING CURRENT OUT
POWER
ON
PUSH
TO
TEST
PS-220
TEST
TO DET. DISCONN. LIGHT
PS-220 SIGNAL
SIG. GND
DET SIGNAL
DETECTOR
DISCONNECTED
+12V/+15V
TB6
DET + SUPPLY
DET - (GND)
FAIL /
DRAWING BY:
CHECKED BY:
APPROVED BY:
S. DAVID
S. DAVID
S. DAVID
TO OIL / AIR RELAY
SENSOR
INPUT
R5
1.5K
LD2
Green LED
D1
1N914
D7
1N914
SW1
C&K 8221
MOMENTARY DPDT
D4
1N914
+
-
U1B
LM324N
6
5
7
R7
10R
Q3
2N3904
R10
1K
C2
0.1uF
+
-
U2D
LM339N
11
10
13
+
-
U1C
LM324N
9
10
8
D2
1N914
D8
1N914
AK500/3DS
1
2
3
R1
3.3K
+
C5
47uF/50V
C3
0.1uF
R11
10K
C1
0.47uF
+
-
U1A
LM324N
2
3
1
4 11
C4
0.1uF
R4
82K
+
-
U2B
LM339N
7
6
1
Q2
BS250
Q1
BS170
D5
1N914
LD1
Green LED
TB5
MKDS 1/7-3.5
1
2
3
4
5
6
7
R12
10K
R2
1M
R8
2.2K
R6
100R
+
-
U2C
LM339N
9
8
14
D3
1N914
D6
1N914
R3
24K
+
-
U2A
LM339N
5
4
2
312
LD3
Green LED
R13
510R 1/2W
+
-
U1D
LM324N
13
12
14
R9 82K