Models 423N1 426N1 Pressure Transducer Installation Maintenance I
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Models 423N1 426N1
Pressure Transducer Installation Maintenance Instructions
COMMON SPECIFICATIONS BOTH UNITS Calibration Reference Conditions
Ambient Temperature: Relative Humidity: Barometric Pressure: 75oF 29.92 Electrical Connection: Enclosure Rating: Press. Cavity Volume: Weight: Wetted Material: Pressure Connection: NEMA Volt Output Volt Output
Physical
23.7 oz., 672.5 grams series 17-4 stainless steel. 7/16-20 female MS16142 standard (media compatible AS568 size -904 O-ring seal required). part 208225 adapt 1/4-18 male 1/2" female conduit connection screw terminals NEMA 0.106 cubic inches, maximum
Performance Characteristics
Accuracy (LH&R): Proof Pressure: Protection: Life, Cycling: 0.25% Best Straight Line (BSL) rated maximum 13,000 psi, whichever less. Reverse polarity protected. Full scale pressure cycles: psi, 1,000 psi, 7,500 psi.
Model 423N1
Excitation Voltage: Output: Zero Output: Full Scale Output:
Output)
volts unregulated 0.50 5.50 volts 0.50 volts FSO. Adjustable from volts .8%. Adjustable from
Environmental
Temperature Range: Compensated: +30o +160oF (-1o 71oC) Operating: 160oF (-18o 71oC) ±1.0% over compensated range, referenced 75°F 0.25% (maximum) g's, 2000 (MIL-STD-202, M204, Cond g's, (MIL-STD-202, M213, Cond.
Model 426N1
Excitation Voltage: Output: Zero Output: Full Scale Output:
Volt Output)
volts unregulated 1.00 11.00 volts 1.00 volts FSO. Adjustable from volts Adjustable from 10.5
Temperature Error: Thermal Hysteresis: Vibration: Shock:
CALIBRATION
models tested meet exceed published specifications. calibration testing were done using instrumentation standards traceable National Institute Standards Technology (NIST). Also tested accordance with MIL-STD-45662A.
READ BEFORE INSTALLATION
Fluid hammer surges destroy pressure transducer must always avoided. pressure snubber should installed eliminate damaging hammer effects. Fluid hammer occurs when liquid flow suddenly stopped, with quick closing solenoid valves. Surges occur when flow suddenly begun, when pump turned full power valve quickly opened. Liquid surges particularly damaging pressure transducers pipe originally empty. avoid damaging surges, fluid lines should remain full possible), pumps should brought power slowly, valves opened slowly. avoid damage from both fluid hammer surges, surge chamber should installed, pressure snubber should installed every transducer. Symptoms fluid hammer surge's damaging effects: Pressure transducer exhibits output zero pressure (large zero offset). zero offset less than user usually re-zero meter, install proper snubber continue monitoring pressures. Pressure transducer output remains constant regardless pressure. severe cases, there will output.
TORQUE REQUIREMENTS:
Apply pipe compound sparingly male pipe threads only. Avoid pipe strain Transducer housing properly supporting aligning piping. Apply wrench flats fittings only, then tighten connection. Adequate support piping proper mounting pressure transducer should made avoid excessive shock vibration. TORQUE pound inches.
CAUTION: steam service, install condensate loop (pigtail steam siphon tube) between steam line pressure transducer. BARKSDALE, INC., 3211 Fruitland Avenue, Angeles, 90058-0843 (323) 589-6181 Bulletin 27291-S 7-22-99
HOUSING
1.438 36.5 POWER SUPPLY 2.500 63.5 TRANSDUCER 15.1 .594 CONDUIT CONNECTION 3.188 81.0 2.188 55.6 TERMINAL STRIP WITH #3-48 WIRE CLAMP SCREWS METER +OUTPUT COMMON
WIRING
+EXCITATION
TERMINAL STRIP CONNECTIONS
+EXCITATION COMMON +OUTPUT GROUND 7-22-99
PRESSURE TRANSDUCER
COVER SCREWS 2.438 62.0 MOUNTING SCREW PLACES
1.219 31.0
3.000 76.2 6.281 159.5
7/16-20UNF THREAD BUNA-N O-RING (-904) THREAD
MOUNTING SCREW PLACES
1.312 33.3 2.625 66.6
208225 ADAPTER
PRESSURE PORT 7/16-20UNF FEMALE MS16142 STANDARD (O-RING SEAL REQUIRED) MALE FITTING ADAPTER PART 208225
DIMENSIONS BOXES MILLIMETERS .969 24.6
1.000 25.4
RETURN REQUESTS/INQUIRIES
Direct warranty repair requests/inquiries Barksdale, Inc. Customer Service Department. Call 323-589-6181, FAX: 323-589-3463 BEFORE RETURNING PRODUCT(S) BARKSDALE, MUST OBTAIN RETURNED MERCHANDISE AUTHORIZATION FROM CUSTOMER SERVICE DEPARTMENT ORDER AVOID PROCESSING DELAYS). WARRANTY RETURNS, please have following information available BEFORE contacting Barksdale: P.O. number under which product PURCHASED. Model number product under warranty. Repair instructions and/or specific problems having with product. Application information. NON-WARRANTY REPAIRS CALIBRATION, consult Barksdale current repair/calibration charges. Have following information available BEFORE contacting Barksdale: Your P.O. number cover COST repair/calibration. Model number product. Repair instructions and/or specific problems having with product. Barksdale's policy make running changes, model changes, whenever improvement possible. That customers latest technology engineering. Copyright 1994 Barksdale, Inc. rights reserved including illustrations. Nothing this manual reproduced manner, either wholly part purpose whatsoever without written permission from Barksdale, Inc.
WARRANTY
STANDARD WARRANTY: Barksdale warrants that Products will free from defects title, manufacture, will conform, manner herein provided, applicable specifications which made part hereof, will free from defects material workmanship, should part found, when properly installed, maintained used under specified service conditions, within three years after date notification completion Barksdale plant shipment Barksdale, whichever earlier, have been defective nonconforming with specifications, Barksdale will repair replace said part f.o.b. factory, provided original part returned factory transportation prepaid Barksdale inspection reveals have been defective nonconforming within terms this warranty. device part shall returned without giving prompt notice nonconformance defect Barksdale obtaining prior written authorization. Barksdale shall event held liable damage delay caused nonconformance defect material workmanship, allowance will made repairs alterations unless made with written approval. Purchaser, user claiming through purchaser, assumes liability consequences misuse thereof itself, employees, other. Equipment accessories manufacture warranted only extent original manufacturer. Barksdale shall liable damage kind resulting from erosive, corrosive other harmful action gases, liquids, other substance handled bytheProducts. Theforegoing isinlieuofallotherwarranties by,andobligations SINCE PRODUCTS SUBJECT SPECIFICATIONS, AFORESAID, WARRANTY MERCHANTABILITY FITNESS PURPOSE APPLICABLE. Buletin 27291-S
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