1900 0701 05 Atlas Copco Mark lll HRR High Range Regulator Compressor Controller with the Atlas Copco 1900 0701 82 Auxiliary Expansion Module

1900 0701 05 Atlas Copco Mark lll HRR High Range Regulator Compressor Controller with the Atlas Copco 1900 0701 82 Auxiliary Expansion Module

The 1900 0701 05 is a Master controller with a 4 X 16 display. The 1900 0701 05 supports expansion modules and has COM1 for external serial communication. The 1900 0701 05 is considered a HRR High Range Regulator and with the 1900 0701 03, 1900 0701 04, and 1900 0701 06 is used to control compressor models GA90 - 315, the GR series and all Z series and ES300.