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Table of Contents
Summary of Contents for AquiStar PS98i
- Page 1 INSTRUCTION MANUAL ® AquiStar PS98i/PS9800 Submersible Pressure Transmitt er...
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Page 2: Table Of Contents
Table of Contents Introduction - PS98i & PS9800 4-20 mA Transmitters ...........2 Initial Inspection and Handling ..................2 Do’s and Don’ts ........................2 General Information ......................3 Installation .........................5 Monitoring Wells .......................5 Other Installations ......................6 Maintenance ........................6 Desiccant Tubes ......................6 Miscellaneous ......................7 Troubleshooting ........................7 Erratic Readings ......................7... -
Page 3: Introduction - Ps98I & Ps9800 4-20 Ma Transmitters
Introduction - PS98i & PS9800 4-20 mA Transmitters These pressure transmitters represent the latest state-of-the-art technology and have been designed to provide trouble-free submersible operation in liquid environments, when properly installed and operated. Please take the time to read through this manual if you are not familiar with this product. -
Page 4: General Information
General Information The following paragraphs outline the basics of how pressure is measured using sub- mersible pressure transmitters: Liquids and gasses do not retain a fi xed shape. Both have the ability to fl ow and are often referred to as fl uids. One fundamental law for a fl uid is that the fl uid exerts an equal pressure in all directions at a given level. - Page 5 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 result is that the dif- ferential (gauge pressure) is measured. A tire pressure gauge is a common example of this type of device.
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Page 6: Installation
Installation The PS98i & PS9800 measure pressure. The most common application is measuring liquid levels in wells and tanks. In order to do this, the transmitter must be installed below the water level at a fi xed depth. The installation depth depends on the range of the transmitter. -
Page 7: Other Installations
Other Installations The transmitter can be installed in any position; however, when it leaves the factory it is tested in the vertical position. Strapping the transmitter body with tie wraps or tape will not hurt it. If the transmitter is being installed in a fl uid environment other than water, be sure to check the compatibility of the fl... -
Page 8: Miscellaneous
Miscellaneous Sensor: There are no user-serviceable parts, other than the batteries. If problems develop with sensor stability or accuracey, contact INW. If the transducers have been exposed to hazardous materials, do not return them without notifi cation and authoriza- tion. Cable: Cable can be damaged by abrasion, sharp objects, twisting, crimping, crushing, or pulling. -
Page 9: Zero Readings When Pressurized
As mentioned above, the PS98i & PS9800 transmitters are current loop devices. This means that changes in pressure imposed on the stainless steel diaphragm result in proportional changes in current. -
Page 10: Component And Wiring Information
= (V+) pressure Blue = pressure signal return Yellow = (V+) temperature Purple = temperature signal return 8.30” (21.081 cm) PS98i 4-20 mA pressure only Shield = ground White = (V+) pressure Blue = pressure signal return 4-20 mA pressure and 30K thermistor... -
Page 11: Mechanical Specifi Cations
9-24 VDC, 100 ms warmup PS9800 Static Accuracy ±0.1% FSO (maximum) (B.F.S.L. 25° C) (±0.25% for 1.1-5 PSIg, 5.8-12 FtH O, 1.75-3.5 mH PS98i Static Accuracy ±0.25% FSO (maximum) (B.F.S.L. 25° C) ±0.1% FSO (optional) Thermal Error ±2.0% FSO (maximum) ±0.8% FSO (typical) -
Page 12: Adaptors
Adaptors The following adaptors are available. Contact your INW representative for details and ordering information. 1/4” male NPT pipe fi tting 1” male pipe adaptor 1” conduit adaptor Reordering Information For sales & service offi ces, please contact: Instrumentation Northwest, Inc. www.inwusa.com 800-776-9355 Accessories... -
Page 13: Limited Warranty/Disclaimer - Ps98I/Ps9800
LIMITED WARRANTY/DISCLAIMER - PS98i/PS9800 A. Seller warrants that products manufactured by Seller when properly installed, used and maintained with a properly installed desiccant tube, shall be free from defects in material and workmanship. Seller’s obligation under this warranty shall be limited to replacing or repairing the part or parts or, at Seller’s option, the products which prove... - Page 14 © 1997 - 2013 by Instrumentation Northwest, Inc. All rights reserved. Instrumentation Northwest and INW are trademarks registered with the U.S. Patent & Trademark Offi ce. Doc# 9B0005r8 10/24/13 / PN 3A341-NI 8902 122nd Avenue NE Kirkland, WA 98033 USA 425-822-4434 425-822-8384 / info@inwusa.com...
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