Model 425 Wing Union/Hammer Union Pressure Sensors DESCRIPTION Honeywells Model 425 Wing Union/Hammer Union Pressure chined as one part. This helps ensure hermetic integrity, which Sensors are rugged devices designed for use with Weco 1502 lessens the chance of media leakage vs. multi-piece parts, and fittings for both offshore and land-based oil and gas applica - increases reliability. The isolated, pressure sensing diaphragm tions. minimizes zero-shift during hammer up and eliminates long term, signal drift in the field. The Weco 1502 (2 in) Wing Union com- Available in two accuracy levels 0.2 % BFSL (Best Fit Straight patible fittings are machined of Inconel X-750, which provides Line) - Standard or (0.1 % BFSL - High Accuracy), Model 425 additional durability with highly abrasive and corrosive media, is typically used in demanding applications such as well stimula- while the Honeywell proprietary stainless steel electrical connec- tion and circulation systems. The higher accuracy option at 0.1 tion delivers enhanced secondary pressure containment. % full scale provides more confidence in the actual measured pressure value, particularly for smaller changes in pressure, al- Each sensor undergoes special assembly processes to test lowing drilling operation adjustments as needed. shock and vibration for reliable performance in the field. Model 425 is constructed as an all-welded, stainless steel assembly with the sensor diaphragm and wing union fitting ma - FEATURES POTENTIAL APPLICATIONS 0.1 % high accuracy BFSL Acidizing 0.2 % standard accuracy BFSL Choke manifold All-welded one-piece, her metically sealed, stainless-steel Fracturing and cementing construction Mud pumps / mud logging Inconel X-750 wetted parts for additional durability with New well development and extraction abrasive or corrosive media Oil and gas drilling Multiple electrical connections Service and cement trucks Optional one-wire (with IS approval) or two-wire (without Standpipe IS approval) shunt calibration allows users the ability to Stimulation validate the offset signal in the field, ensuring the sensor is Well head measurement actively plugged into the system RFI/EMI protected Intrinsically safe CE approved CSA/ATEX cer tificationModel 425 PERFORMANCE SPECIFICATIONS MECHANICAL SPECIFICATIONS Characteristic Measure Characteristic Measure Pressure ranges 0 psi to 5000 psi 0 psi to 6000 psi 0 psi Media Corrosive and abrasive service, to 10000 psi 0 psi to 15000 psi 0 psi Inconel X-750 3 to 20000 psi 0 bar to 350 bar 0 bar to Overload, safe 150 % rated full scale pressure or limit 400 bar 0 bar to 700 bar 0 bar to 1000 of Weco 1502 fitting 3 bar 0 bar to 1350 bar Overload, burst 250 % rated pressure or limit of Weco 1 Accuracy 0.1 % (total error) best fit straight line 1502 fitting 0.2 % (total error) best fit straight line Pressure port Weco 1502 wing union, 51 mm 2 in Calibration Standard 5-point calibration: pipe, male sub end 0 %, 50 %, and 100 % of full scale Wetted parts material Inconel X-750 Output 4 mA to 20 mA, two-wire Weight 2722 g 6 lb Resolution Infinite Housing material 316L stainless steel (labels are welded stainless steel with embossed charac- ters) ENVIRONMENTAL SPECIFICATIONS Characteristic Measure Temperature, operating -43 C to 85 C -45 F to 185 F * INTERNAL AMPLIFIERS Temperature, -34 C to 82 C -30 F to 180 F Intrinsically safe amp: Amplifier specifications compensating Option 2n(2N)*** Temperature effect, zero 0.018 % full scale/C 4 mA to 20 mA Output signal 0.01 % full scale/F 9 Vdc to 28 Vdc Input power (voltage) Temperature effect, span 0.018 % reading/C 0.01 % reading/F 4 mA to 24 mA Input power (current) Temperature effect, sealing Her metically sealed IP68/NEMA 6P 2500 Hz Frequency response (amp) *Consult the installation guide for T ambient 60 db Power supply rejection -43 C to 85 C -45 F to 185 F Operating temperature ELECTRICAL SPECIFICATIONS Reverse voltage protection Yes Characteristic Measure Yes Short circuit protection Supply voltage 9 Vdc to 28 Vdc Wiring code: connector (std) A No connection Insulation resistance >100 MOhm 50 Vdc B (+) Output C (+) Supply Max. loop resistance 950 ohm 28 V decreasing linearly to D Case ground 0 ohm 9 V Circuit protection Reverse polarity protection of supply *** See Honeywells Web site (