GE Ruska Instrument Corporation 7610 High Pr Hydraulic Controller with Fill Pump, RS-232 and IEEE-488 interface, NIST traceable calibration, manual and power cord. p Ranges: 3000, 6000, 10,000, 15,000, 20,000, 30,000, 40,000 pa. b Ranges: 210, 415, 700, 1035, 1400, 2070, 2750 b a.