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Want practical information on the use of INW's water monitoring and sampling products? Download these .pdf application notes from our library.

Smart Sensors

Filter Response on an AquiStar^® PT2X Smart Sensor

This application note gives filter response curves for our new PT2X filtering capabilities.
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Using USB-to-Serial Cables to Connect AquiStar^® Smart Sensors to PC or Laptop Computers

An alternative for computers that do not have available serial ports but need a means to connect to AquiStar^® Smart Sensors
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Changing Batteries in the AquiStar^® Smart Sensors

This application note details the steps for changing batteries in AquiStar Smart Sensors.
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Modbus^® Direct Read on AquiStar^® Smart Sensors

Instrumentation Northwest now offers an easy-to-read Modbus version for several of their popular AquiStar Smart Sensors. These sensors communicate via Modbus RTU and directly return measurement readings, without any further math on the part of the host system. Currently, this feature is available on the PT2X Pressure/Temperature Sensor, the CT2X Conductivity/Temperature/Pressure Sensor, and the T32 1-Wire Temperature Logger. The purpose of this document is to give details for communicating with these sensors for use by PLCs, SCADA systems, and any other applications that use Modbus RTU protocol
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Calibrating an AquiStar^® TempHion™ Smart Sensor

This application note describes the calibration procedure for a TempHion Smart Sensor. It also covers care and filling of the reference reservoir.
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Configuring an AquiStar^® PT2X Smart Sensor to Monitor Depth-to-Water or Groundwater Elevation

This application note provides simple examples for configuring a PT2X Smart Sensor for monitoring depth-to-water or groundwater elevation, using the Aqua4Plus Control Software.
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Error Compensation on PT2X Smart Sensors

This application note explains the patented method used by INW to transform basic strain gauge pressure readings into highly accurate, temperature and device compensated data.
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Analog Sensors

Grounding Issues with the PS-9 Series Submersible Pressure Sensors when Used with Campbell Scientific, Inc., CR10X and CR 510

An overview of grounding issues related to the use of the PS-9 Series submersible pressure sensors when used with the Campbell Scientific, Inc., CR10X and CR510 dataloggers.
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Use of the PS9805 Pressure Transducer with the Campbell Scientific, Inc., CR10X for High Precision Readings on 5 PSI Sensors

Programming information for Campbell Scientific CR10X dataloggers for obtaining improved accuracy when using PS9805 - 5 PSI sensors.
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Use of the PS9105 Pressure Transducer with the Campbell Scientific, Inc. CR10 - Standard Performance

A basic overview of the operation of the PS9105 submersible pressure transducer and how it is used with the Campbell Scientific CR10 Measurement and Control Module.
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Use of the PS9105 Pressure Transducer with the Campbell Scientific, Inc. CR10 - Enhanced Process

A basic overview of using the PS9105 submersible transducer together with with the Campbell Scientific CR10 and custom PROM.
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Wireless

Wireless Data Collection - A White Paper

This white paper explores how the combination of smart water monitoring sensors, wireless telemetry, and innovative software is transforming the sensing and monitoring industry.
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Miscellaneous

Selecting Appropriate Cable for INW Sensor Applications

This application note is to acquaint the user with the various cable types and assist the user in making cable selections.
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Using an AquiStar^® DL2 with a USB Serial Adapter

This application note describes how to use a USB port rather than a serial port with Aqua4 and the AquiStar DL2 data loggers.
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Level Control Using a VFD, a PID Controller, a Redi-Flo4™ Pump, and a 4 - 20 mA Level Sensor

This application note is intended to assist in setting up a constant level control system.
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