ITT BARTON 763A Operation & User’s Manual

GAGE PRESSURE TRANSMITTER User Manual Part No. 9A-C10861, Rev. 03 July 2010 Contents Safety ............................................................................................................ 2 Section 1—Introduction ................................................................................. 3 General ...................... ...

tions presented in Section 3 and all safety notes throughout. ! WARNING: This symbol information about practices or circum- stances that can lead to personal injury or death, property damage, or economic loss. CAUTION: Indicates actions or procedures which if not perfor ...

Section 1 Section 1—Introduction General The Model 763A Gage Pressure Transmitter provides a 4-20 mA or 10-50 mA proportional-to-gage-pressure signal for transmission to remote receiving, control, or readout devices. The electronic components of the 763A are housed in a pressure-sealed enclo- sure. The instruments are ...

Performance Available Spans .............................. 0-300 to 0-3,600 psig Output ............................................. 4-20 mA or 10-50 mA Reference Accuracy* ...................... ±0.5% of factory calibrated span, including the effects of conformance (non-linearity), deadband, hysteresis, and ...

Section 1 The LOCA errors include the cumulative effects of thermal, mechanical, radiation, and seismic aging, as performed per Document No. 9A-CR3-763-6. Long Term Drift* .............................. ±1.0% of factory calibrated span per year, cumula- tive Time Response .............................. < 180 msec. to r ...

Mechanical Aging ........................... 500,000 pressure cycles during accelerated aging; Cycled electrically to induce stress during acceler- ated aging; Vibration cycling using 0.2 G sweeps over the 1-100 Hz range @ 1.0 octave/min. Storage Storage per ANSI N45.2.2-1978 Level B @ 70°F (20°C) ±20°F (� ...

Section 2 Section 2—Theory of Operation Basic Components Gage Pressure Sensing Element The C-type Bourdon tube is an arc-shaped metal tube that is elliptical in cross-section and sealed at one end. The opposite end, which is open, is at- tached to the pressure source. Pressure applied inside the tube affects its shape ...

Figure 2.1—Operational block diagram www.ittcontrols.com [email protected] ...

Section 2 Regulator This stage of the circuit regulates the portion of the loop current that is not Strain Gage Bridge Network The strain gage bridge network consists of two silicon piezo-resistive strain sensors, the zero adjusting potentiometer, bridge completion resistors, and the temperature compensation components. ...