The PH Series pressure transducers are designed for steam,air,gas,and liquid pressure measurement in all media compatible with 17‑4PH N8 stainless steel.They utilize a microprocessor controlled sensor profiled for exceptional accuracy and reliability.All models feature three switchselectable ranges and a "test mode" to verify wiring and panel input scaling.A pushbutton and digital input terminal is used to automatically zero the output,and the microprocessor guards against accidental zero adjustment during operation.The field‑selectable output,offering options of 0 to 5 V, 0 to 10 Vdc, or 4 to 20 mA,ensures excellent systems compatibility.Jumper controlled surge damping is provided on all models to reduce false alarms.