The HDI model # 2400 is a battery powered, stand alone, electronic pressure gauge and
pressure sensing system. The display is a liquid crystal display (LCD), which includes both a
numeric (4 & 1/2 digits) representation (for accuracy) and a bargraph (101 segments)
representation (for trend), battery low indicators, optional slaved units and alarms may be
included.
The transducer (sensor) is an embedded strain gauge housed in a stainless steel case. The
strain gauge is commonly housed in either a 1502 hammer union or a flange. A wide variety of
housings may be specified by the customer.
Once calibrated, the gauge and the sensor become a matched pair. The substitution of any
component, including wire, requires a recalibration of the system. The HDI Model # 2400
system will directly replace any hydraulic system (6" diameter) with either a four bolt (90°) or a
three bolt (120°) pattern without any modifications.