Technical Data Sheet DPT & DPIT-4005 SERIES DIFFERENTIAL PRESSURE TRANSDUCERS. Features. Description

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1 Technical Data Sheet DPT & DPIT-4005 SERIES DIFFERENTIAL PRESSURE TRANSDUCERS Description The 4005 series of differential pressure transducers include Models DPT-4005 and DPIT-4005-M. The 4005 series differential pressure transducers combine high accuracy, scaling multipliers, output filters, and type of output selection into a single package. The differential pressure transducer sensor operates on the capacitance principal and is capable of sensing ultra low differential pressures. In the capacitance cell, a very lightweight, responsive diaphragm deflects a small amount when pressure is applied. This deflection results in a change in capacitance, which is then detected and processed electronically into an output signal linear to the differential pressure. The DPIT Series includes local indication of the measured differential pressure on an independent front panel mounted magnehelic pressure gauge (indicated by a M in the model number). The independent magnehelic gauge readout allows for quick and immediate verification that the electronic transducer is operating effectively, and is available in both SI and English engineering units. Each DPT & DPIT-4005 Series transducer is selected and factory calibrated to meet the design requirements for the given application. Features Field selectable 4-20 ma or 0-10 VDC output, (optional 0-5 VDC output) ± 0.5% F.S. accuracy (standard) ± 0.25% F.S. accuracy (optional) Full scale ranges as low as 0.10 inches of water differential pressure Signal noise cancellation Local indication of differential pressure on an independent magnehelic pressure gauge Can be operated continuously in temperature ranges of 32 to 160 o F Can be stored in temperature ranges of -40 to 180 o F Standard zero shift of only ± 0.025% F.S./ o F Zero shift of only ± 0.015% F.S./ o F (optional) Standard span shift of only ± 0.025% F.S./ o F Span shift of only ± 0.015% F.S./ o F (optional) 25 psi maximum static line pressure Differential overpressure of 5 psi proof and 25 psi burst Vibration less than 0.05% F.S. temporary effect with 5g s, 0-60 Hz Non-corrosive dry gas pressure media Pneumatic ¼ compression process input connection

2 DPT & DPIT-4005 Series Technical Specifications 1. AVAILABLE FULL SCALE RANGES No. Inches W.C PROCESS INPUT CONNECTION Pneumatic ¼ compression, suitable for either hard or soft wall signal tubing 3. ENCLOSURE DPT-4005 NEMA-12 continuous hinge DPIT-4005-M NEMA 1 aluminum 4. PRESSURE MEDIA Non-corrosive dry gases 5. OPERABLE LINE PRESSURE 25 psi maximum static line pressure 6. DIFFERENTIAL OVERPRESSURE 5 psi proof and 25 psi burst pressure 7. VIBRATION <0.05% F.S. temporary effect with 5g s, 0-60 Hz 8. FULL SCALE ACCURACY DATA AT 70 F Standard Optional Combined accuracy ±0.50% ±0.25% Terminal point ±0.40% ±0.20% nonlinearity Hysteresis ±0.02% ±0.02% Non-repeatability ±0.05% ±0.03% 9. ENVIRONMENTAL ATTRIBUTES Storage -40 ~ 180 F -40 ~ 82 C Operating 32 ~ 160 F -18 ~ 71 C Compensation Range 40 ~ 125 F 4 ~ 52 C Zero shift ** ±0.025%FS/ F ±0.025%FS/½ C Span shift ** ** Opt 0.25% Accuracy ±0.025%FS/ F ±0.025%FS/½ C ±0.015%FS/ F ±0.015%FS/½ C 10. ELECTRICAL INFORMATION Output Field selectable 4 ~ 20mA or 0 ~ 10VDC, (optional 0 ~ 5VDC) Supply Power 18 ~ 28 volts DC/AC; 50 ~ 60Hz; 150mA Connections Removable plug w/screw terminals External Load 500 Ω max 11. APPROXIMATE WEIGHT DPT LBS DPIT-4005-M 3.0 LBS 2

3 DPT & DPIT-4005 Series Ordering Information Model: Accuracy: Option: M = Magnehelic Pressure Gauge 1 = 0.5% (STD) 2 = 0.25% (OPT) Output: (Factory Configured) Full Scale Range: 1 = 4-20 ma 2 = 0-5 VDC 3 = 0-10 VDC 1 = 0.10 wc 2 = 0.25 wc 3 = 0.50 wc 4 = 0.75 wc 5 = 1.0 wc 6 = 2.0 wc 7 = 3.0 wc 8 = 5.0 wc 9 = 10.0 wc 0 = Other (Specify) DPT = Differential Pressure Transducer DPIT = Differential Pressure Indicating Transducer 3

4 DPT-4005 Dimensions 1.10" DPT-4005 DIFFERENTIAL PRESSURE TRANSDUCER Model No: Serial No.: DPT LOW PRESSURE CONNECTION 1.30" Power: Output: F.S. Value 24VAC/DC 4-20MA " 6.75" HIGH PRESSURE CONNECTION 3.31" F.E. Served: AHU-1 PARAGON CONTROLS PCI INCORPORATED 1/2-14 NPT (INT. PIPE) 2.00" 5.00" NEMA 12 ENCLOSURE (16 GAUGE STEEL) DPT-4005 Field Connections RECEIVER (4-20 ma/0-10 VDC) + - DP + - OUTPUT POWER DIFFEREN TRAN POWER 24 VAC/DC Model No: 4

5 DPIT-4005-M Dimensions 4.875" FABRICATED ALUMINUM NEMA 1 ENCLOSURE " " 1/2-14 NPT INT PIPE CONDUIT KNOCKOUT 1.200" TOTAL PRESSURE CONNECTION STATIC PRESSURE CONNECTION 0.750" 3.000" DPIT-4005-M FLOW INDICATING TRANSDUCER Model No: Serial No: Power: Output: F.S. Value: F.E. Served: POWER STATUS DPIT-4005-M VDC 4-20mA AHU " 3.100" 4.100" PCI PARAGON CONTROLS INCORPORATED 5.900" 1 4 " COMPRESSION FITTINGS SUITABLE FOR HARD OR SOFT TUBING DPIT-4005-M Field Connections POWER SUPPLY 24VAC/DC RECEIVER - (4-20 ma/0-10 VDC) + F.S. Value: F.E. Served: - + ATING NSDUCER PCI 005-M IT-4005-M VAC/DC 4-20MA AHU-1 PARAGON CONTROLS INCORPORATED ZERO OUTPUT SPAN 5

6 DPT & DPIT-4005 Series Specification Guide Electronic Transducers 1. Provide individual differential pressure transducers, selected for the required spans of the application being served. The transducer shall not be ranged for more than 200% of the application requirements. 2. The transducer(s) shall be solid state electronic type, with infinite output resolution, capable of performing dedicated differential pressure measurement. Microprocessor based transducers with time sharing of multiple inputs are not acceptable. 3. Each transducer s output shall not be affected by direction of mounting (attitude) or external vibrations, and shall be furnished with a factory calibrated span that matches the application. 4. Transducer performance shall be equal to or better than the following: Accuracy: 0.5% F.S. (Terminal Point) / 0.35% F.S. (BFSL) Temperature Effects: <0.03% F.S./ F Over-pressure: 5 PSIG Proof / 10 PSIG Burst Response: <0.25 seconds for full span input Noise Filtration: Low Pass Filter, factory 3.2Hz Additional Specifications for Differential Pressure Transducer Options - Magnehelic Pressure Gauge: Differential pressure transducers shall be provided with an integral dual scale indicating meter operating independent of all other control devices. The top scale shall indicate the measured differential pressure in inches of water. The meter shall be a differential pressure type that is diaphragm actuated, and is to be flush mounted on the enclosure door. The meter shall be calibrated to an accuracy of ±2% of span (±3% of span for 0.5 inch water column magnehelic gauge or ±4% of span for 0.25 inch water column magnehelic gauge). Labeling 1. An identification label shall be placed on each transducer listing the model number, primary elements served, full scale value, and identifying tag number. Manufacturer 1. Electronic transducers shall be Paragon Controls Inc. Model [DPT-4005] [DPIT-4005-M] or equal as approved by the Engineer. 2. Naming of a manufacturer does not automatically constitute acceptance of this standard product nor waive the responsibility of the manufacturer to comply totally with all requirements of the proceeding specification. 6

7 Engineering Reference Conversion Factors LENGTH millimeter (mm) inch inch (in) 25.4* millimeter millimeter (mm) foot foot (ft) 304.8* millimeter centimeter (cm) inch inch (in) 2.54* centimeter centimeter (cm) foot foot (ft) 30.48* centimeter meter (m) foot foot (ft) * meter meter (m) yard yard (ft) * meter kilometer (km) mile mile (mi) * kilometer AREA millimeter 2 (mm 2 ) inch 2 inch 2 (in 2 ) * millimeter 2 centimeter 2 (cm 2 ) inch 2 inch 2 (in 2 ) * centimeter 2 millimeter 2 (mm 2 ) foot 2 foot 2 (ft 2 ) 92,903.04* millimeter 2 centimeter 2 (cm 2 ) foot 2 foot 2 (ft 2 ) * centimeter 2 meter 2 (m 2 ) foot 2 foot 2 (ft 2 ) * meter 2 meter 2 (m 2 ) yard 2 yard 2 (yd 2 ) meter 2 VOLUME centimeter 3 (cm 3 ) inch 3 inch 3 (in 3 ) centimeter 3 meter 3 (m 3 ) foot 3 foot 3 (ft 3 ) meter 3 meter 3 (m 3 ) yard 3 yard 3 (yd 3 ) meter 3 meter 3 (m 3 ) * litre foot 3 (ft 3 ) liter VELOCITY AND FLOW meter/second (m/s) foot/minute foot/minute (fpm) * meter/second meter/minute foot/minute foot/minute (fpm) * meter/minute liter/second (l/s) feet 3 /minute feet 3 /minute (cfm) liter/second liter/minute feet 3 /minute feet 3 /minute (cfm) liter/minute meter 3 /second feet 3 /minute feet 3 /minute (cfm) meter 3 /second meter 3 /hr feet 3 /minute feet 3 /minute (cfm) meter 3 /hr PRESSURE pascal @39.2 F inches of water inch @39.2 F millimeter (mm) kilopascal @32 F inches of mercury foot @32 F millimeter (mm) kilopascal pounds per square inch inch centimeter (cm) centimeters of water inches of water foot centimeter (cm) 7

8 Engineering Reference Table VELOCITY VERSUS VELOCITY PRESSURE V = VELOCITY IN FEET PER MINUTE P V = VELOCITY PRESSURE IN INCHES H 2 O V P V V P V V P V V P V V P V V P V V P V V P V Above P V Values Are Based On Standard Air Density Of lbm/ft 3 Which Is Air At 68 o F, 50% Relative Humidity, And 29.92" Hg. The equation for converting air volume (Q) into velocity (V) and velocity pressure (P V ) is: V = Q V P = A C ρ V 2 Where: V = Velocity, in fpm Q = Flow, in cfm A = Area, in ft 2 C = ρ = Density of air, in lb/ft 3 P V = Velocity pressure, in inches H 2 O Paragon Controls Incorporated P.O. Box 99, Forestville, CA Phone 707 / Fax 707 / TDS: DPT/DPIT4005/1207 Copyright 2004