26
6 TESTING AND RESETTING
6.1 Test Points
These test points are provided to assist in trouble shooting the
autoclave. A test point board is needed to be able to read these test
points.
NU TP
FUNCTION
VALVE
TP1
GND
TP2
+5V DC
TP3
+12V DC
TP4
OUTPUT HEATERS 0V-Off; 5V-On
TP5
OUTPUT VACUUM PUMP 0V-Off; 5V-On
TP6
TP7
OUTPUT AIR INLET VALVE (43) 0V –CLOSE; 5V-OPEN
TP8
OUTPUT VACUUM VALVE (52) 0V –CLOSE; 5V-OPEN
TP9
OUTPUT
MINERAL FREE WATER TO
RESERVOIR (21)
0V-Off; 5V-On
TP10
OUTPUT WATER TO VAC PUMP (15) 0V-Off; 5V-On
TP11
TP12
OUTPUT STEAM TO CHAMBER (93) 0V –CLOSE; 5V-OPEN
TP13
OUTPUT SLOW EXHAUST (74) 0V –CLOSE; 5V-OPEN
TP14
OUTPUT DRAIN COOLING WATER (13) 0V-Off; 5V-On
TP15
OUTPUT WATER TO VAC PUMP RES. (14) 0V-Off; 5V-On
TP16
OUTPUT FAST EXHAUST (73) 0V –CLOSE; 5V-OPEN
TP17
OUTPUT WATER PUMP 0V-Off; 5V-On
TP18
TP19
TP20
TP21
INPUT TEMPERATURE-1 (PT100) 273ºF = 1.97V
TP22
INPUT JACKET PRESSURE 29.4 psi = 2.031V
TP23
TP24
INPUT CHAMBER PRESSURE 29.4 psi = 2.031V
0V = SATISFIED
TP25
INPUT LOW WATER ELECTRODE
2.5V = NOT SATISFIED
0V = SATISFIED
TP26
INPUT HIGH WATER ELECTRODE
2.5V = NOT SATISFIED
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