Temperature Dial Adjustment; Corrective Maintenance Power Source - Pace ST 25 Operation And Maintenance Manual

The TEKLINK Remote Box (sold separately) allows the connection of up to three ST 25/45 systems in
any combination.
NOTE: Systems connected together through the TEKLINK system must be used and controlled by a
single operator. Any attempt to operate by more than one individual can create a hazard
condition and will cause deterioration in performance.
CAUTION: Ensure that only one air hose is connected to the VACUUM or controllable PRESSURE port
at one time. Attachment to both ports simultaneously will cause deterioration in performance.

Temperature Dial Adjustment

The ST 25 system is tested for temperature accuracy at the factory and can be
checked for calibration according to PACE requirements. Also, a temperature setting
normally used by the operator can be adjusted to the precise temperature indicated on
the Dial/Display. No internal adjustments can be made to the power supply. To verify
calibration of the Temperature selection dial, perform the following procedure.
1. Install a tip with an embedded thermocouple into the handpiece connected to the system.
Tips with K type thermocouples are available from PACE.
2. Connect the thermocouple assembly to an appropriate temperature meter.
3. When set fully counterclockwise, the pointer of the Variable Temperature
Control knob will align to the Calibration Mark as shown. With the system
turned on, adjust the Variable Temperature Control to obtain a stable tip
temperature of 300°C (for PACE factory specifications) or the temperature
setting normally used by the operator.
If the temperature displayed on temperature meter is within ±15°C (27°F),
perform steps 4 thru 6 to obtain a precise reading. If the temperature is off by more than
±15°C, the handpiece may require maintenance.
second handpiece.
4. Carefully lock the Variable Temperature Control in position by tightening the
inner set screw (closest to front panel).
5. Loosen the outer set screw on the Variable Temperature Control knob (furthest
from front panel) using the Temp. Locking Key (hex key) supplied with the
system. Position the knob with the pointer aligned to match the temperature
indicated on the temperature meter. Secure the knob in position by tightening the outer
set screw.
6. Loosen the inner set screw to unlock the Variable Temperature control if adjustment of
operating tip temperature is desired.
Corrective Maintenance
Power Source
Most malfunctions are simple and easy to correct.
Symptom
No power to
system
Handpiece will
not heat
Power Source Corrective Maintenance
©2004 PACE Inc., Annapolis Junction, Maryland
All Rights Reserved
Probable Cause
Blown Fuse
Defective Heater
Power Source Malfunction
Recheck the temperature using a
Solution
Check handpiece using the appropriate handpiece manual.
Replace the fuse (located in the AC Receptacle Fuse
Holder) with one of the same rated value.
Refer to the appropriate handpiece manual
Contact PACE
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