In-line and off-line process controls let you rapidly identify and eliminate any problems that may arise. The GP 4-TEST Pro is a lab instrument, which combines several versatile applications. It accurately measures the emitter sheet resistance as well as line and contact resistance of the fingers. That makes the GP 4-TEST a reliable instrument for monitoring the diffusion, screen printing and firing processes. Since this device also determines resistivity, it can also classify input material.

• 4-point measuring system
• Tungsten carbide or rhodium coated test probes are available
• Transfer length method (TLM) used to determine contact resistance

• Performs all types of resistance measurements
• High quality test probes for every application
• Keithley instruments for measuring electronics
• User-friendly software with extensive evaluation options
• MES interface for extended applications

Note: All technical details are subject to change without prior notice. Only technical specifications contained in an offer are binding.