12. If you have a Sodr-X-Tractor or other PACE air handpiece connected to your system, press and
hold the handpiece Vacuum Switch. You will hear a noise as the motor pump starts up and
continues to run. Release the Vacuum Switch.
Operation
Auto Tip Temperature Compensation and Offset
Differences between the temperature settings and true tip temperatures are negligible when using
Thru-Hole, single point desoldering tips. With any heating system however, True Tip Temperatures
can differ greatly from temperature settings when using larger SMT soldering tips. This difference is
called Tip Temperature Offset. The ST 145 Auto Tip Temperature Compensation feature lets you set
and display true tip temperatures regardless of size and type of tip or handpiece. PACE recommends
the use of the Tip & Temperature Selection System booklet (PACE P/N 5050-0251) as a guide to
accurately set and maintain a true tip temperature for any size and type of SMT tip. The booklet
contains a listing of PACE tip information including the Tip Offset Constant (for each tip), which must
be stored in system memory to ensure tip temperature accuracy. Refer to the “Set-Up Mode” section
of this manual for instructions on using this feature.
As with any system, Set and Operating Tip Temperatures are only exactly equal when the handpiece
is idling (unloaded at equilibrium). During use, (i.e., under load) the Operating Tip Temperature will
usually be lower.
Password
The Password feature of the ST 145 system, when activated, will prevent unauthorized alteration of
stored system temperature parameters and feature settings (refer to the “Factory Settings”). If a
Password has been installed, the LED Display will display an instruction to enter the Password (a 5
key sequence of the keys on the system front panel) when a setting change is attempted. Entry of
the correct Password at this point will allow the operator to proceed with the desired changes. Once
the correct Password has been entered, the operator can continue to make changes to Tip
Temperature settings. To reactivate the Password protection, simply turn the system Power Switch
off and then back on. The system is now in normal operation. Refer to the “Set-Up Mode” section of
this manual for instructions on entering, changing or removing a Password.
LED Display, Normal Operation
The LED Display provides a 3 digit display of temperature information.
The LED Display will show:
1. A display of "888" on power up to ensure that all LEDs on the
display are working.
2. A display of the software version of the installed microprocessor
(e.g., "1-1") for 2 seconds on initial power up after the "888" is displayed.
3. Actual tip temperature of the connected handpiece during normal operation.
4. The tip temperature displayed will flash when the system is in Temperature Setback.
©2004 PACE Inc., Annapolis Junction, Maryland
Page 13 of 22
All Rights Reserved
