Sensor connector
Heater connector
a
b
MAINTENANCE / INSPECTION
●
Broken Heater or Sensor
(1) Open the handpiece.
1. Remove the three screws holding the
handpiece together.
2. Move the tube downward.
3. Remove the pipe from the protruding
portion of the handle.
CAUTION
Quartz glass and heat insulation are inside the pipe.
Be careful not to drop or lose these items.
4. Disconnect the heater sensor connector
and remove the heater.
(2) Measure the resistance value.
1. Measure the resistance value (a) of the
sensor. The correct value is 0
Ω
.
2. Measure the resistance value (b) of the
heater. The correct values are approx-
imately 33
Ω
(
±
10%) (100-120 V), 85
Ω
(±
10%) (220-240 V) at room temperature.
If the resistance value is incorrect, replace the
part.
(Refer to the instructions included with the
replacement part.)
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