Check Heater Resistance - Graco Therm-O-Flow 200 Instructions - Parts Manual

Setup

Check Heater Resistance

To reduce risk of injury or damage to equipment, con-
duct these electrical checks with the main power
switch OFF.
1. Turn main power switch off.
Table 4 Heaters
Between
Component Terminals
Platen AD, BE, FC
AD, BE, FC
AD, BE, FC
Any to GND
Component Between Terminals
Pump T1/T3, B1/B3
22
For Unit Voltage Platen Nodel Code Resistance Values (ohms)
220/240 VAC
380/400 VAC
470/490 VAC
570/590 VAC
All
For Unit Voltage Platten Model Code Resistance Values (ohms)
Any
2. Make electrical resistance checks for the compo-
nents.
3. Replace any parts whose resistance readings do
not comply with the ranges listed in tables.
NOTE: Check resistance at ambient room temperature
63°-77°F (17°-25°C).
EM
EF, ES
EM
EF, ES
EM
EF, ES
EM
EF, ES
Any
Any
8.25? +1 / -2?
9.6? +2 / -3?
16.5? +1 / -2?
19.2? +2 / -3?
16.5? +1 / -2?
19.2? +2 / -3?
16.5? +1 / -2?
19.2? +2 / -3?
100,000? Min
192.0 +/- 19.2Ω
334130L