The Arc Length System (TP-300-AVC) is used in combination with TIG welding and plasma cutting power sources to give automatic control of the arc voltage to maintain arc length.

The ALS monitors the arc voltage by comparing it with the level set on the TP-300-AVC front control panel and makes changes to the torch position as necessary. Once the torch height has been selected it will be maintained despite any changes in the height of the workpiece.

The Arc Length System can be used for DC or AC welding using TIG or Plasma cutting processes and is manufactured to be extremely durable. The linear slide is robust, needing no maintenance or lubrication, and is completely dust and dirt resistant.

Features Include:

• One unit for both TIG and Plasma applications
• Precision control of the torch positioning using the control box adjustments
• LED Digital Readout of preset parameters
• Arc Length Control Timer: Start delay can be set between 0 - 10 Seconds
• Precision control of the sensitivity and actuator speed of the corrective changes made to the arc length
• Control shows when welding current is flowing and start delay time has elapsed
• Control Box can be mounted on an Idler Carriage or stands freely on its own

Specifications:

Auxiliary supply power: 110V (105-120V) 50/60hz 1A max or 230V (220-240V) 50/60hz 0.6A max
Welding / cutting current range: 20A-400A, (max 400A@60%).
Welding voltage range: 10V-35V DC (option to set higher on request)
Cutting voltage range: 100V-350V DC
Positioner (linear actuator) voltage output: 0-15V DC (max 1A)
Positioner (linear actuator) type: DC permanent magnet
Digital meter accuracy – real value: +/- 1% +/-1 digit
Protection class IP22
Max no load (OCV) for TIG 99.9V DC (Or 120V peak)
Max no load (OCV) for plasma cutting 400V DC
Linear Slide Range: 4”
Linear Slide Speed: 6”/min (15.2cm/min)
Linear Slide Max Load: 12lb