Differential Pressure controller

   Direct low pressure input :  Hi- Low input port PU4
                             Display : Hi port pressure indicator display
                                         Low port pressure indicator
                                         display
                                         Differential pressure indicator
                                         display   

   current / voltage input :  4-20 ma / 0-10 v dc x 2 nos
                                        inputs
                           Display : Hi port pressure indicator display
                                       Low port pressure indicator display
                                       Differential pressure indicator
                                       display

   Set point  : differential pressure set point .
   output : potential free relay contact. Or 4-20 ma
   Supply voltage : 230 v ac
   Size : 96 x 96 x 110 mm