Eaton Vickers has designed a revolutionary replacement amplifier card for old hydraulic and fluid control proportional valve control. The EEA-PAM-533-E-30 Series has revolutionary features which enable electronic signal control of Eaton proportional valves via monitoring and switch points on the front panel of the amplifier card. The E-30 series has overload protection against electric power surges, pulse modulation, ramp function generators, and a low 24VDC power voltage. All E-30 cards have deadband zeroing for easy tuning and control. Plug-in modules can be attached to all E-30 cards to enable special command or functions. Eaton Vickers designs all of their products with efficiency and reliability in mind.