©2013 PACE Inc., Southern Pines, NC
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All Rights Reserved
General Information
Introduction
Thank you for purchasing the PACE SODRTEK
model ST 325 Analog Convective
Soldering/Desoldering System. This manual will provide you with the information necessary to
properly set up, operate, and maintain the ST 325. Please read this manual thoroughly before using
the unit. The ST 325 unit is a complete system designed for hot air removal and installation of SMD
components, including Ball Grid Arrays (BGAs). The following key features allow process controlled
placement and reflow of BGAs and SMD components. The ST 325 will store up to 20 profiles on its
own. A PC can be used to store additional profiles and to collect the thermocouple data.
Microprocessor Control
The microprocessor system offers precision control of temperature (closed-loop control), cycle time
(adjustable by one second increments), and blower speed provides consistent, repeatable results in
successive reflow operations. Utilizing the Quiet Flo (low noise) turbine blower, pressure/flow rate is
easily controlled and maintained at optimum levels for the particular task. A multi-level password
lock-out prevents unauthorized changes and an audible countdown timer indicates end of cycle.
ST 325 Handpiece
The user-friendly ST 325 static-safe handpiece incorporates a powerful heater and has easy-access
heat cycle and vacuum pick switches on the handle. A built-in, self-adjusting vacuum pick has a push-
pull action, allowing components to be lifted automatically after solder reflow. When utilized with the
ST 325 System work platform, the handpiece is easily converted to a precision reflow head.
The ST 325 unit is available in either the 115 VAC or 230 VAC version. The 115 VAC version system
bears the FCC Conformity Marking which assures the user that it conforms to all the requirements of
FCC Emission Control Standard, Title 47, Subpart B, Class A. This standard is designed to provide
reasonable protection against harmful interference when the equipment is operated in a commercial
environment. The 230 VAC version system bears the CE Conformity Marking which assures the user
that it conforms to all the requirements of (EU) directive EMC 89/336/EEC & 73/23/EEC.
Specifications
•
ST 325 - Operates on 97-127 VAC, 60 Hz (115 VAC version)
575 Watts maximum at 120 VAC, 60 Hz
•
ST 325E - Operates on 197-264 VAC, 50 Hz (230 VAC version)
575 Watts maximum at 230 VAC, 50 Hz
•
Air Temperature Range - 149°C - 482°C (300°F - 900°F)
•
Timing Control - 10 to 999 seconds with 1 second resolution. (does not include preheat time)
•
Blower Air Flow Rate
(measured at heater)
- 20 SLPM (0.7 SCFM) minimum at highest speed (9).
-
5 SLPM (0.18 SCFM) minimum at lowest speed (1).
•
Vacuum (at Pik-Vac Port) - 7.6 cm Hg. (3 in. Hg.) minimum.
NOTE:
The ST 325 is designed for cyclical usage. Attempts to use in continuous operations by
taping the handpiece Cycle Switch or other methods may void Blower Assembly warranty.
•
Component Capacity - (maximum size)
-
5.1 cm x 5.1 cm (2” x 2”)
Physical Parameters
Size - 133 mm H x 260 mm W x 248 mm D (5.25” H x 10.25” W x 9.75” D)
Unit Weight - 4.3 Kg. (9.5 lbs.)
