
Type
Wattage/Voltage
Resistance Ω
-5% + 10%
Current A
STG 5
2000 / 208
2000 / 230
21.5
26.5
9.6
8.6
STG 7
2100 / 208
2100 / 230
20.5
25.0
10.0
9.1
STG 7
3100 / 208
3100 / 230
14.0
17.0
14.9
13.4
STW 5
2500 / 230
21.0
10.8 (9.8 at 208V)
STW 7
1500 / 230
35.0
6.5 (5.9 at 208V)
Temperature
Resistance Ω
°F
°C
± 5 Ohms
32
0
1000
60
16
1062
70
21
1082
80
27
1106
90
32
1124
100
38
1148
125
52
1202
150
65
1252
200
94
1362
250
121
1464
350
177
1674
450
233
1880
Page 30
Service Manual STG5/7 intelligent STW5/7 intelligent form 9123999 rev. 05/2010
ELECTRICAL TESTS AND SERVICE PROCEDURES
WARNING:
Disconnect the electrical power to the machine at
the main circuit box. Place a tag on the circuit box indicating
the circuit is being serviced.
Note:
When testing the resistance of the sen-
sor remove the wiring. Refer to the removal
and replacement part of the manual on how
to do this.
Remove the wiring from the sensor.
1.
Connect a temperature sensor to the
2.
probe for comparison.
Test the probe with an Ohmmeter.
3.
ELECTRICAL TESTS AnD SERVICE PROCEDURES
PT1000 SENSOR TEST
Note:
When testing the
resistance of the element
remove the wiring.
hEATING ELEMENT TEST