Testing equipment for setting and testing pneumatically actuated control devices for operating variables

摘要

Testing equipment (10) is proposed for setting and testing pneumatically actuated application devices for control rods on an injection pump, in which it is possible to measure relative, absolute and differential pressures with the aid of an electropneumatic absolute pressure sensor (29). The absolute pressure sensor (29) is connected to a digital display (13) via an electrical switching device (32) which processes a reference signal, while a pneumatic device which produces pressure and underpressure with the aid of a control valve (27) and a diaphragm pump (23) is connected to its fluid input (34). The application device, which is pneumatically connected to a connecting coupling (24) can be tested during measurement of absolute and relative pressure. <IMAGE>