MRC:
						Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
					 
					
						Special Features:
					
					
						Input signal 0 to10 vdc,  0 to 1 vdc or 0 to 0.1 vdc selectable on front panel;  input power 115 or 230 vac,  50 watts maximum 50/60 hz;  controller accuracy 0.25% of f.S;  ambient temp 0 to 40 degrees c;  output power +/- 15 vdc for powering pressure transducer;  mounting standard 1/2 rack cabinet;  external set point signal 0 to 5 vdc analog;  +/- 0.1% repeatability of full scale;  controls all mks throttle valves 253 series; designed for easy rs-232c computer interfacing;  4 setpoints which can be remotely changed;  soft start feature which allows the throttle valve to open slowly,  minimizing the turbulance in the process chamber