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INW PT2X, Инструкция по эксплуатации

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INW - PT2X Instruction Manual 

1

Table of Contents

Introduction  ......................................................................................................................3

What is the PT2X? .....................................................................................................3
Initial Inspection and Handling .................................................................................3
Do’s and Don’ts .........................................................................................................4
How Pressure Sensors Work ......................................................................................4

Installation and Operation .................................................................................................6

Connecting External Power .......................................................................................6
Connecting the PT2X to a Computer .........................................................................6
Installing the Aqua4Plus or Aqua4Plus Lite Software ..............................................7
Installing the Sensor ..................................................................................................7
Battery Life Calculator ..............................................................................................8
Collecting Data ..........................................................................................................8

Maintenance ....................................................................................................................12

Changing Batteries ...................................................................................................12
Removing Debris from End Cone ...........................................................................12
Desiccant Tubes .......................................................................................................13
Miscellaneous ..........................................................................................................14

Trouble Shooting .............................................................................................................14

Erratic Readings .......................................................................................................14
Oscillating Readings Over Time ..............................................................................15
Zero Readings When Pressurized ............................................................................15
Grounding Issues .....................................................................................................15

Appendix A: Technical Specifi cations ............................................................................16

Wiring and Component Information ........................................................................16
Dimensions and Specifi cations ................................................................................17
Continuous Rate and Filter Settings ........................................................................19

Appendix B: Settings and Calibration  ...........................................................................20

Preparation ...............................................................................................................20
Submergence ............................................................................................................22
Depth-to-Water ........................................................................................................23
Elevation Above Sea Level ......................................................................................24
Staff Gauge ..............................................................................................................25

Appendix C: Alternate Connection Options ...................................................................26

Connecting via RS232 Serial Port ...........................................................................26
Connecting with a USB/Serial Adapter ...................................................................26

Appendix D: Reading the PT2X via Direct  Read ..........................................................28

Setting Units for Direct Read ..................................................................................28
Power Consideration ................................................................................................29
Reading Via Modbus

®

 RTU .....................................................................................29

Reading Via SDI-12 .................................................................................................31

Appendix E: Battery Changing Details ...........................................................................33
Reordering Information ..................................................................................................38
Limited Warranty/Disclaimer - INW PT2X Pressure/Temperature Sensor ....................39

Содержание PT2X

Страница 1: ...INW PT2X Pressure Temperature Smart Sensor and Datalogger INSTRUCTION MANUAL For PSIG sensors refer to page 12 regarding desiccant use ...

Страница 2: ...ver Time 15 Zero Readings When Pressurized 15 Grounding Issues 15 Appendix A Technical Specifications 16 Wiring and Component Information 16 Dimensions and Specifications 17 Continuous Rate and Filter Settings 19 Appendix B Settings and Calibration 20 Preparation 20 Submergence 22 Depth to Water 23 Elevation Above Sea Level 24 Staff Gauge 25 Appendix C Alternate Connection Options 26 Connecting vi...

Страница 3: ...he manufacturer No part of this manual may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording for any purpose without the express written permission of the manufacturer 1997 2016 Seametrics All rights reserved Registered trademarks and trademarks belong to their respective owners ...

Страница 4: ...ng INW s easy to use Aqua4Plus or Aqua4Plus Lite control software Once programmed the unit will measure and collect data on a variety of time intervals Replace your analog sensor datalogger with the AquiStar PT2X as a stand alone unit or network with other INW Smart Sensors Most users will use the PT2X with INW s Aqua4Plus or Aqua4Plus Lite software However the PT2X is quite versatile communicatin...

Страница 5: ...y we express pressure in every day life and is the pressure exerted over and above atmospheric pressure With this in mind gauge pressure Pg can be expressed as the difference between the absolute pressure Pa and atmospheric pressure Patm Pg Pa Patm To measure gauge pressure atmospheric pressure is subjected to one side of the system and the pressure to be measured is subjected to the other The res...

Страница 6: ...allow the device to reference atmospheric pressure The resulting gauge pressure measurement reflects only the depth of submergence That is the net pressure on the diaphragm is due entirely to the depth of submergence Pressure Diagram See detail A Absolute pressure is given as Pa Patm kd where k is 2 307 feet of water ...

Страница 7: ...r In its cabled configuration the sensorcable is terminated with a weather resistant connector In its cableless configuration the sensor is terminated with a weather resistant connector inside a screw cap Connect the weather resistant connector to your computer s USB port as shown below For alternate connection options see Appendix C Connect the sensor to your PC using INW s USB to RS485 adapter S...

Страница 8: ...evels in wells and tanks In order to do this the sensor must be installed below the water level at a fixed depth The installation depth depends on the range of the sensor One 1 PSI is equal to approximately 2 31 feet of water If you have a 5 PSI sensor the range is 11 55 feet of water and the sensor should not be installed at a depth below 11 55 feet If the sensor is installed below its maximum ra...

Страница 9: ...factory when batteries are first put in the sensor If you need to replace the batteries see Appendix E for replacement information and for information on resetting the battery life calculator If the battery life calculator is not reset the remaining life information will be incorrect Collecting Data Following is a brief overview on using Aqua4Plus Aqua4Plus Lite to collect data Please refer to the...

Страница 10: ...p Data Recording Click the tool button A Logging Schedule Window will open Refer to the software instruction manuals for details in describing your schedule Click the Start button to save the schedule to the sensor and begin recording Using the Logging Schedule Window describe the test steps for your particular test ...

Страница 11: ...the tool button Select a file location Click Save Click Start Select the data file to retrieve Viewing Data Click the or tool button to view data as a table Click the tool button to view data as a graph Navigate to the desired file then click the Open button The File Display window displays your data in a tabular format ...

Страница 12: ...lect a file location and enter a name for the file Select a file type Click Save A Word About Units Readings from the PT2X Smart Sensor can be displayed in various units such as PSI Ft H2O or mm H2O for pressure or degrees Celsius or degrees Fahrenheit for temperature Select the units you want from the Options Display Units menu or from the Configure Menu Program Configuration Set Computer Display...

Страница 13: ...d to clean out the debris Twist Open Housing 1 Gently twist off end cone portion only do not twist off pressure element 2 Remove debris Take care not to poke anything into the sensor This can damage the sensor element and void the warranty 3 Replace and retighten the end cone Gently twist off the end cone and then carefully remove debris Pressure element Water inlet End cone PREVENT BATTERY LEAKAG...

Страница 14: ...s filter prolongs the life of the desiccant as much as three times over a desiccant tube without the filter Install the sensor so that the desiccant tube and cable connector will not flood or lie in water The desiccant is a bright blue color when active and dry As moisture is absorbed the color will begin to fade becoming a light pink which indicates full saturation and time to replace Replacement...

Страница 15: ...s The contact areas pins sockets of the connectors will wear out with extensive use If your application requires repeated connections other types of connectors can be provided The connectors used by INW are not submersible but are designed to be splash resistant Trouble Shooting Erratic Readings Erratic readings can be caused by a poor connection damaged cable moisture in the unit or a damaged tra...

Страница 16: ...ken cable a bad connection or possibly a damaged transmitter Check the connector to see if a wire has become loose or if the cable has been cut If damage is not readily apparent contact INW for evaluation and repair Grounding Issues It is commonly known that when using electronic equipment both personnel and equipment need to be protected from high power spikes that may be caused by lightning powe...

Страница 17: ...on link RS485 provides communication to the host computer Wiring and Component Information White Purple Yellow Brown Blue Shield may be green 12 VDC Vaux Modbus D Not used Modbus D Not used SDI 12 Signal 12 VDC Gnd Earth ground White Purple Yellow Brown Blue Shield 12 VDC Vaux Modbus D Not used Modbus D Not used SDI 12 Signal 12 VDC Gnd 1 2 3 4 5 5 Pin Connector White Purple Yellow Brown Blue Shie...

Страница 18: ...tandard capacity Terminating Connector Available Communication RS485 Modbus RTU SDI 12 ver 1 3 Direct Modbus Read Output 32 bit IEEE floating point SDI 12 Output ASCII Internal Math 32 bit floating point Operating Temp Range Requires freeze protection kit if in water below freezing 15 C to 55 C Storage Temp Range Storage without batteries 40 C to 80 C Memory 4MB 520 000 records Log Types Variable ...

Страница 19: ...2 O Absolute3 PSI FtH2 O mH2 O 12 5 15 30 50 100 300 2 32 12 35 69 115 231 692 0 72 3 5 10 5 21 35 70 210 30 50 100 300 35 81 196 658 3 5 10 24 59 200 Units PSI FtH2 O inH2 O cmH2 O mmH2 O mH2 O inHg cmHg mmHg Bars mBars kPa Static Accuracy 0 05 FSO typical 0 1 FSO maximum B F S L 20 C Resolution 0 0034 FS typical Maximum Operating Pressure 1 1 x FS Over Range Protection 3x FS for 300psi contact I...

Страница 20: ...ter Settings The PT2X has the ability to apply some filtering to incoming data in order to smooth out minor variations in readings This filter can be from 1 no filtering to 8 maximum filtering Different versions of firmware have different filtering options as shown below For further information on PT2X data filtering see INW application note Filter Response on PT2X Smart Sensor 9C0530 Firmware Ver...

Страница 21: ...n relation to sea level To return values relative to a staff gauge Preparation Run Aqua4Plus Lite or Aqua4Plus and scan for sensors On the Sensor Map click the sensor you want to adjust From Aqua4Plus Lite o Select the units you want to use for measurements i e psi feet of water inches of mercury etc Set this from the Configure Menu Program Configuration Set Computer Display Units o Open the Setti...

Страница 22: ...INW PT2X Instruction Manual 21 Sample Settings and Calibration Window ...

Страница 23: ... readings have stabilized click the Accept button in the pop up box Compute Second Calibration Point Place sensor in the fluid you are measuring at a second precise known level In the Ref box for the second point enter this level or pressure Click second Measure button When readings have stabilized click the Accept button in the pop up box Applying Slope and Offset Click the Apply button to apply ...

Страница 24: ...ne the depth to water from the top of the well or other reference point Enter this value in the DTW box Click the Measure button When readings have stabilized click the Accept button in the pop up box Applying the Slope and Offset Click the Apply button to apply the calculated values The calculated slope and offset will be transferred to the fields near the top of the window Click OK to save the v...

Страница 25: ... indicator or other measuring device determine the depth to water from the top of the well or other reference point Enter this value in the DTW box Click the Measure button When readings have stabilized click the Accept button in the pop up box Applying Offset Click the Apply button to apply the calculated offset The calculated offset will be transferred to the offset field near the top of the win...

Страница 26: ...l on your staff gauge Enter this value in the Staff box Click the Measure button When readings have stabilized click the Accept button in the pop up box Applying Offset Click the Apply button to apply the calculated offset The calculated offset will be transferred to the offset field near the top of the window Click OK to save the values to the sensor Verifying Settings Using the Real Time Monitor...

Страница 27: ...5 RS232 adapter and an interface cable Connecting with a USB Serial Adapter USB to Serial cables are readily available from many electronics and computer stores as well as numerous sites on the Internet INW has tested and recommends the Keyspan USA 19HS It is available from INW as well as from many sites on the Internet Install as follows Plug into USB port Install the drivers provided with the pa...

Страница 28: ...ox open the Communications dialog box from the Options menu Increase the Highest COM port number up to a maximum of 15 Connect the sensor to your computer using a USB to Serial adapter and an interface cable Interface Cable PC or Laptop Computer USB Port USB to Serial Adapter RS232 RS485 Adapter Sensor Screw Sensor cap Cableless Configuration ...

Страница 29: ...ollowing units Temperature Degrees Celsius Pressure PSI However you can select from a variety of units for direct read measurements If you want to change to different units for example degrees Fahrenheit for temperature or feet of water for pressure set these units using Aqua4Plus Aqua4Plus Lite From Aqua4Plus select Direct Read Units from the Configure Advanced menu From Aqua4Plus Lite select Set...

Страница 30: ... From the flyout menu select Sensor Baud Rate You may be asked for a password Enter admin On the popup box click the down arrow select the baud rate you need and then click OK Once you have changed the baud rate on the PT2X you will not be able to talk to it with Aqua4Plus until you change the baud rate for Aqua4Plus as follows Click the Options menu and then select Baud Rate On the popup box clic...

Страница 31: ... been requested the sensor goes back to sleep Because of this the first reading you get will be old If you are taking readings at intervals of less than 10 seconds simply ignore the first reading all remaining readings will be current On the other hand if you are taking readings at intervals of greater than 10 seconds take a reading ignore it wait one second take another reading Record this second...

Страница 32: ...feed character highlighted values indicate variable data SDI 12 Commands Sensor Identification a I a 13 INWUSA PT2X 213ssssssssss cr lf note 213 will change to reflect current firmware revision ssssssssss device serial Acknowledge Active Address Query a a cr lf a cr lf Change Address a A b b cr lf change address to b Request measurement a M a 0022 cr lf request all measurements a D0 a 22 0512 12 0...

Страница 33: ...a 00201 cr lf request temperature measurement only a D0 a 22 0512 cr lf read temperature a C2 a 00201 cr lf request pressure measurement only a D0 a 12 0512 cr lf read pressure Concurrent measurement with CRC a CC a 00202 cr lf request all measurements with CRC a D0 a 22 0512 12 0512 crc cr lf read temperature pressure a CC1 a 00201 cr lf request temperature measurement only with CRC a D0 a 22 051...

Страница 34: ...age to the sensor To prevent leakage the following is recommended Does not apply to lithium batteries Change the batteries at least every 18 months If the sensor will not be deployed for 3 months or more remove the batteries IMPORTANT NOTE When changing batteries it is important to reset the Battery Life Calculator If the battery life calculator is not reset the remaining life information will be ...

Страница 35: ...rd enough to twist try a piece of rubber cabinet liner for additional friction Opening the Housing There is a black compressible square ring near the top of the sensor This ring acts as a spring to lock the cable in This needs to be compressed in order to allow removal of the top cap Once this ring is compressed a gentle counterclockwise twist is all that is needed to remove the cable from the sen...

Страница 36: ...he next page With Vise recommended method Cabled Sensor 1 If possible use a set of soft jaws as shown to prevent marring the surfaces of the top cap assembly 2 Place the sensor in a vise clamping gently on the swaged area You do not need to clamp the vise very hard Continue to Removing the Housing on the next page Cableless Sensor 1 If possible use a set of soft jaws as shown to prevent marring th...

Страница 37: ...swaged area do not grab the knurled diameter 2 Find a hard edge and place the tips or side of the jaws of the pliers onto this edge as shown This will allow you to press down with your weight to compress the square ring Continue to Removing the Housing below Cableless Sensor 1 Leave the cableless cap on in order to protect the pins inside 2 Grasp the pliers on the knurled area tightly being carefu...

Страница 38: ... tuck the wiring into the cutaway on the circuit board with your thumb to protect it while being installed back into the housing 5 Rotate the top cap assembly into the opening in the housing being very careful not to nick or pinch any wires 6 Gently press down until the assembly stops and then twist it into place It will click in and decompress the gasket when it is fully engaged Pull wires gently...

Страница 39: ...38 INW PT2X Instruction Manual Reordering Information For sales service offices please contact INW A Division of Seametrics www inwusa com 800 776 9355 ...

Страница 40: ...in In the event that equipment is altered or repaired by the Buyer without prior written approval by the Seller all warranties are void Equipment and accessories not manufactured by the Seller are warranted only to the extent of and by the original manufacturer s warranty THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES WHETHER ORAL WRITTEN EXPRESSED IMPLIED OR STATUTORY IMPLIED WARRAN...

Страница 41: ...40 INW PT2X Instruction Manual Notes ...

Страница 42: ...WA 98032 USA 253 872 0284 FAX 253 872 0285 info inwusa com INW A Division of Seametrics 1997 2016 Seametrics All rights reserved Instrumentation Northwest and INW are trademarks of Seametrics Doc 9B0730r20 1 1 6 2016 PN 6D275 NI s ...

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