Branson Ultrasonics ZT245 Ultrasonic Welders

Key Features
• Line / Load Regulation - corrects for variations due to power line
fluctuations and varying load conditions through Branson’s proprietary
closed-loop amplitude control. Output amplitude is maintained with a
variation of only + 2% with line voltage fluctuations of +10%, regardless
of load. It ensures constant power in welding and provides greater weld
consistency and reliability.
• 2000 Series 20 kHz converter - produces 20% higher output amplitude than its 900 Series predecessor for
faster weld cycles; in addition, this converter is more rugged and has higher power capacity.
• Auto Seek - automatically measures stack frequency and stores it in memory. Three selectable Auto Seek
choices are available:
1. On power up, setting memory for the initial weld.
2. Depressing “test” switch.
3. By once/minute timer to track heating, cooling, and other effects.
• Operating modes - IW models feature welding in time; ultrasonics and force are applied to parts for a precise,
preset time, and parts are held under force for a precise hold time; adjustable afterburst delay and duration
times may be set, if required. Display of time and afterburst parameters is digital. IW+ models give choice of
time or distance modes (either absolute or collapse). In absolute, the weld is terminated at a predetermined point in the stroke, measured from the top of the stroke. In collapse, the weld is terminated at a predetermined
point in the stroke after the horn contacts the part and the trigger switch is
activated. The position display is digital. With position modes, upper and
lower limit ranges may be selected.
• Digital parameter entry with autoranging - when entering parameters
gives precise settings for repeatable accuracy. The autoranged values enable
fine resolution and setup accuracy.
• A linear optical encoder - (IW+ models only) measures weld “distance.”
The resolution on the encoder is 0.0001 inch (0.0025 mm).
• Afterburst with variable delay and duration - is available to dislodge a part
or material adhering to the horn face.
• Individual select keys - allow easy selection of parameters to be modified.
Active choice is lighted.
• Sequence of operation - is displayed in the digital LED window during the
welding cycle.
• Self-diagnostics and cycle monitoring - features and capabilities provide
fast, accurate troubleshooting and minimize downtime. During initial powerup, the unit completes a self-check and identifies any fault conditions or parameter errors before indicating that the system is “ready” for operation.
• Visual and audible alarms, and external outputs - identify overload,
machine faults and setup errors (e.g., emergency stop engaged).
• Fast-response LED storage meter - displays power loading in 5% increments, and provides storage of the peak power achieved during the weld
cycle as well as better visibility; 100% of rated output of the power supply
is delivered at full meter reading.
• Peak power reading - from the last welding cycle is available on the digital
LED display by depressing the “reset” switch. Similarly, power in the tuning
mode is digitally displayed when the “test” switch is depressed.
• LED readouts display parameter settings - during setup and operation
for easy reference and monitoring. LEDs are large and easy to read in most
light conditions.
• Lockout of front panel switches - is provided by and internal dip switch,
preventing unauthorized parameter changes to the setup.
• Nonvolatile storage of cycle parameters - provides storage of last-used
cycle parameters even if the system is shut off or a power interruption occurs.