Instrumentation Northwes AquiStar PT2X Скачать руководство пользователя

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NSTRUMENTATION

ORTHWEST

NC.

AquiStar



PT2X

Smart Sensor

Pressure/Temperature
Sensor and Datalogger

Including PT2X-BV
Barometric/Vacuum Sensor

INSTRUCTION
MANUAL

Instrumentation

Northwest, Inc.

Protecting our water resources since 1982

Содержание AquiStar PT2X

Страница 1: ...ORTHWEST INC AquiStar PT2X Smart Sensor Pressure Temperature Sensor and Datalogger Including PT2X BV Barometric Vacuum Sensor INSTRUCTION MANUAL Instrumentation Northwest Inc Protecting our water reso...

Страница 2: ...ounding Issues 12 AppendixA Technical Specifications 13 General Specification 13 Wiring and Component Information 13 Operating Specifications 15 Mechanical Specifications 15 Battery Life Calculation 1...

Страница 3: ...er 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 permiss...

Страница 4: ...well tank and tidal levels as well as for pump testing and flow monitoring Initial Inspection and Handling Upon receipt of your smart sensor inspect the shipping package for damage If any damage is ap...

Страница 5: ...ence We are all submerged in the atmosphere As we increase our elevation the pressure exerted on our bodies decreases as there is less of this fluid above us It should be noted that atmospheric pressu...

Страница 6: ...recall that changes in weather cause the absolute atmospheric pressure to change In water the absolute pressure Pa at some level of depth d is given as follows see Figure 2 Pa Patm kd where k is simp...

Страница 7: ...the desired depth Fasten the cable to the well head using tie wraps or a weather proof strain relief system When securing a vented cable make sure not to pinch the cable too tightly or the vent tube i...

Страница 8: ...he rate of four measurements per hour See Battery Life Calculation section in Appendix A for further details If auxiliary power is desired you can use a 6 13 VDC supply that can provide 15 ma Connect...

Страница 9: ...ensor cable is terminated with a waterproof connector In its free suspension configuration the PT2X is terminated with a screw cap Remove the screw cap to access the waterproof connector Connect the w...

Страница 10: ...ng steady but controlled upward pressure Caution Pulling forcefully on the top cap can cause the O rings to release suddenly and the top cap to disengage with enough force to pull the insides out of t...

Страница 11: ...do not return them without notification and authorization INW will ask that if the sensor assembly has been exposed to hazardous or toxic chemicals you send back only the sensor and end connector disc...

Страница 12: ...ably seeing barometric changes The amount is usually 5 to 1 5 feet of water This can be caused by a plugged vent tube in the cable or actual water level changes in the aquifer itself in response to ba...

Страница 13: ...to provide a low resistance path to ground When using several pieces of interconnected equipment each of which may have its own ground problems with noise signal interference and erroneous readings ma...

Страница 14: ...ion link RS485 to the host computer Temperature measurement is accomplished utilizing a temperature sensor chip and time is measured utilizing a real time clock chip with battery backup Because of adv...

Страница 15: ...h 1 4 NPT Pressure Element available in 5 15 30 50 100 or 300 PSI PT2X Sensor Datalogger Circuit Board containing 1 MB non volatile memory User replaceable AA batteries Service Connector Patented Cabl...

Страница 16: ...acy 0 75 C maximum Resolution 0 1 C Time Accuracy 4min yr maximum 2min yr typical RecommendedOperating TemperatureRange 0 Cto40 C Contact factory for extended temperature ranges Mechanical Specificati...

Страница 17: ...les When sleeping the PT2X consumes approximately 150 Joules per week Each reading consumes approximately 075 Joules Communicating with the sensor for one minute to upload data or take real time readi...

Страница 18: ...e i e psi feet of water inches of mercury etc 3 From the Configuration Menu select Field Calibration 4 Under Pressure enter a 0 in the b field 5 Position the sensor where you want it to read zero 6 Ta...

Страница 19: ...el This will be KL2 8 Take a reading This will be RL2 9 From the Configuration Menu select Field Calibration 10 Using these values solve the following equations for m and b see example below or use th...

Страница 20: ...to Water Dw Depth to water measured with water level indicator Ds Depth of sensor submergence fromAqua4Plus Real Time Monitor Off Dw Ds Offset calculated to be entered in Aqua4Plus m 1 Slope Constant...

Страница 21: ...Et Dw Ds 500 47 38 415 To enter the offset click on the Config Menu and then select Field Calibration Be sure the units in Aqua4Plus are the same as the units you used when measuring above Leave the m...

Страница 22: ...Cable INW does not sell USB to Serial cables however they are readily available from many electronics and computer stores as well as numerous sites on the Internet They usually run between 10 and 40...

Страница 23: ...ture entering the inlet INW also recommends installing a sun shield to avoid overheating VacuumMeasurement If installing a vacuum tube for vacuum measurements be sure that the tubing is not collapsibl...

Страница 24: ...BV Quick Connect Air Vacuum Inlet Recalibration and Check up INW recommends that the PT2X BV be returned for factory recalibration and check up every six months or if problems develop with sensor sta...

Страница 25: ...eError 0 5 FSO maximum 0 25 FSO typical reference 25 C Max ZeroOffsetat25 C 0 25 FSO Resolution 16bit OverRange 2times Protection Temperature Accuracy 0 75 C maximum Resolution 0 1 C Time Accuracy 4mi...

Страница 26: ...25 Reordering Information For sales service offices please contact Instrumentation Northwest Inc www inwusa com 800 776 9355...

Страница 27: ...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 t...

Страница 28: ...registered with the U S Patent Trademark Office Printed on recycled paper Doc 9B00730r6 4 2004 P N 6D275 Instrumentation Northwest Inc 8902 122nd Avenue NE Kirkland WA 98033 425 822 4434 425 822 8384...

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