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PR-2000
4.4 Choosing the weld mode
Figure 4.6
4.5 Setting the pneumatic air pressure
4.6 Setting the weld program
Figure 4.7
4.7 Setting the weld time and current
Figure 4.8
Copyright © Pro Spot International, Inc. 2005-2009
The PR-2000 is a multi-functional resistance spot welder. It is equipped with a
four weld cable system for your convenience. Two of the weld cables are connect-
ed to the Two-Sided Spot Gun and the other two are connected to the Single-
Sided Weld Gun.
To select a weld mode, press the respective mode button (fig. 4.6)
Once the welding mode is selected, a group of related weld programs become
available to the user (see section 4.8 "Setting the default weld programs")
Pneumatic air is used for:
- forcing the spot gun to close and open.
- cooling the welding cables that are connected to the spot gun.
The air pressure is regulated with the air regulator, and the set pressure is indicat-
ed on the pressure gauge. Default pressure is 90 PSI.
Change the air pressure as follows:
1. Unlock the pressure regulator by pulling on the adjustor knob till it snaps into
the unlocked position.
2. Turn the pressure regulator knob clockwise to increase or counter-clockwise to
decrease the air pressure.
3. Lock the pressure regulator by returning the knob to the lock position.
The PR-2000 features 6 different strength weld power modes. It defaults to
0.7mm program. To change weld program press "Next Program" (fig. 4.7).
The program box indicates the weld power (thickness).
For example, when welding two HSS Galv. metals that are 1.2mm thick, you
should use the 1.2mm program.
If more power is desired, press "Next Program" to reach the next level.
The time and current automatically change with each respective weld power
mode.
Referring to fig. 4.8: The top value indicates the time duration that will be applied
during the weld and the bottom value indicates the weld power in weld amperage
that will be applied during the weld.
4 Operation
Page 13
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