DWYER INSTRUMENTS, INC. Phone: 219/879-8000
Contents
1. MODEL HIF TEFA WE RANGE ae WE Deon 20 te 2 Ve aed The Series HADP transmitter has been carefully calibrated before shipment to you and it should be handled with the same care given any precision instrument Pressure range and dimensions are reported on the applicable specifications bulletin Ambient Conditions Do not submerge in liquids use in ambient conditions corrosive to anodized aluminum subject to spray or dripping or use in a high vibration environment The transmitter is very slightly sensitive to acceleration in the pressure fitting axis Installation is recommended in the vertical position with the pressure port downward This position minimizes damage from drippage of pressure system piping Installation of Pressure Fittings Your transmitter is designed for most accurate operation when subjected to pressures within the designated pressure range Refer to the specifications for proof pressure limits Subjection to excessive pressure voids the warranty Do not overpressure Standard sealants such as pipe tape generally are satisfactory For the most sensitive pressure ranges excessive high torquing of a metal pressure fitting may cause slight zero shift which may be trimmed out using the zero adjustment Use of a plastic fitting often shows no noticeable zero shift The torquing effect does not appreciably affect linearity or sensitivity The wrench flat on the Series HADP should be used when installing the2. Sensitivity can be adjusted approximately 5 mA from the nominal 16 mA full scale span The sensitivity adjustment potentiometer is located as shown in the diagram and may be adjusted without affecting linearity calibration Linearity DO NOT TOUCH Factory adjusted for best linearity Touching any adjustments other than zero output or sensitivity may necessitate recalibration Note Sensitivity span adjustment is not recommended unless a primary pressure standard dead weight tester etc is available for use as a reference _ Linearity Adjust a DO NOT TOUCH we A ay p w f TA lt a Ly Sensitivity Adjust T g Zero Adjust i i WA ke t i Temperature se C Compensation n a DO NOT TOUCH MAINTENANCE Upon final installation of the Series HADP Differential Pressure Transmitter no routine maintenance is required A periodic check of system calibration is recommended The Series HADP is not field serviceable and should be returned if repair is needed field repair should not be attempted and may void warranty Be sure to include a brief description of the problem plus any relevant application notes Contact customer service to receive a return goods authorization number before shipping Chart A Max Pressure Max Pressure Model Range in w c High Low HADP UV 00 0 to 0 5 2 5 in W C HADP UV 01 0 to 1 5 in w c HADP UV 02 0 to 2 5 12 5 in w c HADP UV 03 0 to 5 25 in w c HADP UV 04 0 to 15 75 in
3. positive pressure fitting DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46361 U S A Phone 219 879 8000 Fax 219 872 9057 Series HADP High Accuracy Differential Pressure Transmitter Specifications Installation and Operating Instructions Bulletin P HADP 4x 6 32UNC 2B 7 64 2 78 MIN FULL THRD SPECIFICATIONS Service Compatible non conducting air gas Wetted Parts Positive high Pressure Port Gases compatible with SS hard anodized 6061 aluminum Buna N O ring Reference low Pressure Port Anodized aluminum alumina ceramics gold fluorocarbon elastomer sealant amp Buna N O ring Accuracy lt 0 14 FS Stability lt 0 1 FS over 6 months 70 F 21 C Pressure Limits See Model Chart Temperature Limits Operating 0 to 175 F 18 to 71 C Storage 65 to 250 F 53 to 121 C Compensated Temperature Range 30 to 150 F 1 to 65 C Thermal Effect lt 1 0 FS 100 F Power Requirements 17 to 42 VDC Output Signal 4 to 20 mA for current models 0 to 5 VDC for voltage models 1 8 27 1 38 32 CABLE 27 78 2 4x 05 32 03 97 o MOUNTING ey f T 3 18 ae 47 64 3 60 45 ae 7 94 3 18 789 3 1 4 82 55 Zero and Span Output Zero output Factory set to within 0 07 mA Span FS output Factory set to within 0 07 mA Loop Resistance Minimum supply voltage VDC 17 0 02 x Resistance of receiver plus line Maximum supply vo
4. ltage VDC 42 0 004 x Resistance of receiver plus line Zero and Span Adjustments None Response Time lt 5 msec Current Consumption lt 30 mA Electrical Connections 2 ft multi conductor cable Process Connections 1 8 27 NPT internal both positive and negative ports Mounting Orientation Pressure port 90 parallel to ground Thermal Effects Max zero 1 0 1 8 FS 100 F 100 C max Weight 8 oz 227 g Agency Approval CE www dwyer inst com e mail info dwyer inst com A Positive Pressure Fitting and Media Compatibility Series HADP 1 8 27 NPT internal fitting For use with gases compatible with stainless steel hard anodized 6061 aluminum Buna N O ring B Reference Pressure Fitting and Media Compatibility Differential pressure measurements only HADP fa M Q Ae Low Notes 1 Differential pressure models can be used to measure gage pressure by leaving the reference port open to atmosphere 2 Line Pressure refers to pressure applied to both high and low sides of the sensing device simultaneously Refer to the product data sheet to determine maximum differential pressure and overpressure limits Electrical Information for Standard 24 VDC Excitation Pressure Transmitters nominal Connections Cable Lead Function White Positive Excitation Yellow Positive Output Brown Negative Output Black Negative Excitation to circuit ground Case Shield Electrical The elect
5. ng 4 to 20 mA Output Power Supply VDC J y q L Pressure Transmitter Calibrated at 24 VOC with 250 ohm Load load Voltmeter ri i readout recorder ete Ground Wiring 0 to 5 VDC Output PRESSURE TRANSMITTER POWER SUPPLY Adjustments for Zero and Sensitivity Adjustments for Voltage Output Pressure Transmitters cover must be removed TURN OFF EXCITATION POWER DURING COVER REMOVAL OR REPLACEMENT Zero Pressure Output Can be adjusted to zero by potentiometer as shown in diagram Unit factory adjusted to zero output 10 mV Sensitivity span Can be adjusted by potentiometer as shown on outline diagram Unit factory adjusted to order specifications Linearity DO NOT TOUCH Factory adjusted for best linearity Touching any adjustments other than zero output or sensitivity may necessitate recalibration Note Sensitivity span adjustment is not recommended unless a primary pressure standard dead weight tester etc is available for use as a reference Temperature Compensation a _ Linearity Adjust DO NOT TOUCH DO NOT TOUCH Zero Adjust _ i bA ri Pa Sensitivity Adjust Adjustments for Current Output Pressure Transmitters cover must be removed Zero Pressure Output Zero output can be adjusted 0 2 mA about the nominal 4 mA The zero adjustment is the potentiometer shown in the diagram Changing zero will not change span Sensitivity span
6. rical circuit is equivalent to a 4 terminal network which can be grounded at only one point either at the negative excitation or the negative signal output lead but must not be commoned or grounded at more than one point The pressure transmitter must be operated with the case connected either to the negative excitation terminal or to the negative output terminal Failure to do this may result in damage to or unsatisfactory operation of the unit This connection may be made by connecting shield and black negative excitation leads or alternately by connecting the shield and brown negative output leads together Best shielding against noise will be obtained by connecting the shield and negative excitation black leads The circuit has internal protection Reversed excitation voltage for at least 5 minutes Short circuit or signal output leads Short duration power line transients up to 150 volts Note on long cable use In some instances use of long cables several hundred feet length may introduce enough cable capacitance into the circuit to cause output oscillations If encountered this oscillation may be eliminated by connecting a 100 ohm resistor 1 8th watt or larger in series to each of the output leads at the end of the 2 ft transmitter cable These series resistors of course add to the output resistance Electrical Operation is from a 24 VDC supply common return grounded and provides you with the negative signal outp
7. ut lead also at the common ground potential Thus many transmitters can be operated from one power supply into single ended loads Circuit is reversed voltage protected for at least 5 minutes Internal transient suppression network is provided for short duration transients to 150 volts Grounding For general usage and best results lowest noise grounding of the shield case to the black lead is recommended Power Supply Advice This transmitter has been designed to operate from a 24 VDC source The 24 V is 24 V above the common power return lead and the 24 V is 24 V below the common power return lead All three power leads must be connected The transmitter will not function if just the 24 V and 24 V leads are connected to the power source To avoid circuit damage due to excessive voltage the positive supply voltage should be held within the range of 15 V to 20 V 22 V to 30 V and the negative supply voltage should be held within the range of 10 V to 20 V 10 V to 24 V Electrical Information for 4 to 20 mA Pressure Transmitter Electrical The circuit is designed to operate as a true 2 wire 4 to 20 mA pressure transmitter Connection The transmitter has two electrical leads These may be connected for current flow in either direction without change in performance or damage We suggest that the electrical cable shield be connected to the system loop circuits ground thereby improving electrical noise rejection Wiri
8. w c HADP UV 05 0 to 30 150 in w c HADP UC 00 0 to 0 5 2 5 in W C HADP UC 01 0 to 1 5 in w c HADP UC 02 0 to 2 5 12 5 in w c HADP UC 03 0 to 5 25 in w c HADP UC 04 0 to 15 75 in w c HADP UC 05 0 to 30 150 in w c HADP BV 08 0 to 0 25 2 5 in W C HADP BV 09 0 to 0 5 5 in w c HADP BV 10 0 to 1 12 5 in w c HADP BV 11 0 to 2 5 25 in w c HADP BV 12 0 to 7 5 75 in w c HADP BV 13 0 to 15 150 in w c HADP BC 08 0 to 0 25 2 5 in W C HADP BC 09 0 to 40 5 5 in w c HADP BC 10 0 to 1 12 5 in w c HADP BC 11 0 to 2 5 25 in w c HADP BC 12 0 to 7 5 75 in w c HADP BC 13 0 to 15 150 in w c Modei Rangepsid HADP UV 06 HADP UV 07 HADP UC 06 HADP UC 07 HADP BV 14 HADP BV 15 HADP BC 14 HADP BC 15 Note HADP XV XxX is for voltage and HADP XC XX is for current Copyright 2010 Dwyer Instruments Inc Printed in U S A 12 10 DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46361 U S A Phone 219 879 8000 Fax 219 872 9057 FR R1 443858 00 www dwyer inst com e mail info dwyer inst com
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