Smart Sensor Product Guide - INW

INW PRODUCT GUIDE 

1-800-PRO-WELL 

WWW WWW.INWUSA.COM 

WWW .INWUSA.COM

Table of Contents 

AquiStar ® Features and Benefi ts .................................... 2 

AquiStar ® Family of Smart Sensors ................................ 4 

AquiStar ® Applications .................................................... 7 

Software ....................................................................... 10 

Related Products .......................................................... 12 

Technical Data .............................................................. 13 

Accessories .................................................................. 21 

How to Order ................................................................ 24 

Sales and Service Locations 

8902 122nd Avenue NE, Kirkland • Washington 98033 USA 

(425) 822-4434 • (425) 822-8384 FAX • info@inwusa.com 

4620 Northgate Boulevard, Suite 170 • Sacramento, California 95834 

(916) 922-2900 • (916) 648-7766 FAX • inwsw@inwusa.com 

Information subject to change without notice. 

©2012 Instrumentation Northwest, Inc. All rights reserved. INW, AquiStar, WaveData, and TempHion 

are registered trademarks and trademarks of Instrumentation Northwest. 

Doc#6C0100r3 8/14/12 

INW - www.inwusa.com - 1

2 - INW- www.inwusa.com 

AquiStar ® Features and Benefi ts 

Welcome to the AquiStar ® Family of Smart Sensors! 

At the very heart of any water monitoring system is a sensor that takes measurements. INW’s AquiStar ® 

Smart Sensors’ sophisticated sensing elements detect minute changes in such environmental water 

parameters as pressure, level, temperature, conductivity, bromide, chloride, pH, ORP, dissolved 

oxygen, and turbidity. 

Recording dataloggers built in 

Powerful internal microprocessors enable the sensors to be programmed for data recording 

and various monitoring sequences. 

Low power consumption 

AquiStar ® Smart Sensors go to sleep between readings, waking up automatically as needed. 

Due to this sleep mode and the use of very low power components, many of our AquiStar ® 

sensors run for over a year on two internal AA batteries, even when taking readings every 15 

minutes. 

Dual power supply 

Most AquiStar ® Smart Sensors come with two internal AA batties. Twelve volt external power 

supplies and solar panels are available for data intensive applications. 

Rugged construction 

Submersible units, constructed with 316 stainless steel (or titanium), fl uoropolymer, and 

PTFE, stand up to rugged and corrosive fi eld conditions. Surface sensors, housed in IP66/67 

polycarbonate or ABS plastic enclosures, withstand the rigors of sun, wind, and inclement 

weather. 

Powerful software 

Aqua4Plus control software comes standard with all AquiStar ® sensors. Use this software to 

view the status of any sensor, take real time readings, set background recording rates, upload 

and view the data in a number of different formats, as well as export data to .csv (comma 

separated value) fi les for import into databases, spreadsheets, and GIS modeling software. 

Easy in-fi eld calibration 

Powerful calibration wizards make in-fi eld calibration a snap. 

Dual communication protocol (Modbus ® and SDI-12) 

In addition to INW’s software, use standard Modbus ® RTU or SDI-12 equipment to easily read 

the GDL, so as to tie into your existing networks. 

Cabling and networking 

RS485 networking allows several sensors to be networked together and allows cable runs up 

to 2000 feet. Select from polyurethane, polyethylene, or FEP cable to meet the needs of your 

particular applications. 

Wireless Connectivity 

Extend your networks for miles or around the world using WaveData ® radio units, cellular 

modems, and the Internet. transmit readings via wireless telemetry and the Internet, allowing 

monitoring of data from anywhere with an Internet connection.

Feature Chart 

Parameters 

AquiStar ® Features and Benefi ts 

PT2X PT2X-BV CT2X Compensator 1 TempHion DO2 Turbo T8 Multiparameter 1 GDL 1 

Temperature Y Y Y Y Y Y Y Y Y Y 

Pressure Y Y Y Y Y 

Level Y Y Y Y 

Conductivity Y Y Y 

pH Y Y 

ISE Y 

ORP Y Y 

Dissolved Oxygen Y Y Y 

Flow Y 

Turbidity Y Y Y 

Rainfall Y 

Material 

316 Stainless Y Y Y Y Y Y Y 

Titanium Y Y Y Y Y 

ABS/Polycarbonate Y Y Y Y 

Communication Protocol 

Modbus ® Y Y Y Y Y Y Y Y Y 

SDI-12 Y Y Y Y Y Y Y Y Y Y 

Baud Rate 

9600 Y Y Y Y Y Y Y Y Y Y 

19200 Y Y Y Y Y Y Y Y Y Y 

38400 Y Y Y Y Y Y Y Y Y Y 

Temperature Element 

Digital Y Y Y Y Y 

Thermistor Y Y Y Y Y Y Y 

Pressure Element 

Gauge Y Y Y Y 

Absolute Y Y Y Y Y 

General 

Submersible Y 2 Y N/A Y Y Y N/A Y N/A 

Diameter 

0.75” 

(1.9 

cm) 

N/A 0.75” 

(1.9 

cm) 

1 Available parameters depend on confi guration. 

2 PT2X-BV in tube version is submersible. 

N/A 0.75” 

(1.9 cm) 

1.66” 

(4.22 

cm) 

1.29” 

(3.3 

cm) 

N/A VARIES N/A 



AquiStar ® Family of Smart Sensors 

Pressure/Level Sensors 

PT2X Pressure / Temperature Smart Sensor with Datalogging 

Temperature Sensors 

An integrated datalogger and pressure/temperature sensor, the AquiStar ® PT2X is ideal for 

monitoring groundwater, well, tank, and tidal levels, as well as for pump testing and fl ow 

monitoring. Constructed with 316 stainless steel (or titanium), fl uoropoloymer,and PTFE, 

this sensor provides high accuracy readings (±0.06% FSO typical) in rugged and corrosive 

fi eld conditions. 

The PT2X is available in absolute, gauge, and sealed gauge versions in a variety of pressure 

ranges. Its small diameter (0.75”), low power usage, and dual protocol (Modbus ® and 

SDI-12) make this a very versatile addition to your monitoring instrumentation tool box. 

PT2X-BV Barometric / Vacuum Smart Sensor with Datalogging 

The PT2X-BV is an ideal barometric reference for absolute versions of the AquiStar ® PT2X 

pressure sensor. Using the Aqua4Plus Barometric Compensation Utility, conversion of 

data fi les from absolute sensors is a snap. 

Available in either a weatherproof box or 316 stainless steel tube, the PT2X-BV is a 0-16 

PSIA (110 kpa) barometric/vacuum sensor built on the PT2X Smart Sensor platform. The 

tubular version is available with either a standard end cone for submersible applications 

or a 1/4”NPT end cone for pressure measurements in pipe or vacuum extraction 

applications. 

T8 Thermistor Temperature Smart Sensor with Datalogging 

The T8 Temperature Sensor is a multi-channel temperature sensor and datalogger, 

using thermistor technology. The datalogger is housed in a small weatherproof box. The 

thermistors are embedded in strings of multi-conductor cable at user specifi ed locations, 

up to 8 thermistors per datalogger. A variety of thermistors are available to meet various 

temperature and resolution requirements. 

The T8 is great almost anywhere you need to measure temperature—whether it be in 

a lake, in a tank, or in a well. It is especially good for profi ling temperature variations at 

different levels.

Water Quality Sensors 


CT2X Conductivity / Pressure Smart Sensor with Datalogging 

The AquiStar ® CT2X Smart Sensor is a submersible conductivity/temperature sensor 

with built-in datalogging. Incorporating a 4-pole epoxy/graphite electrode cell, this sensor 

is extremely durable--excellent for use in rugged fi eld conditions. The 4-pole technology 

reduces fringe fi eld interference errors, lessens inaccuracy caused by polarization effects, 

and lowers contact resistance problems. 

Autoranging conductivity unit measures from 10 to 300,000 uS/cm. Linear and non-linear 

temperature compensation features add fl exibility to this sensor. The optional pressure 

module is available in a wide variety of pressure ranges. Add to all of this its small 

diameter (0.75”), low power usage, and dual protocol (Modbus ® and SDI-12), and you 

have a very powerful addition to your monitoring instrumentation tool box. 

TempHion pH/ISE/Redox Smart Sensor with Datalogging 

The Aquistar ® TempHion Smart Sensor is a submersible water quality sensor and 

datalogger capable of measuring pH, specifi c ions, redox, and temperature. Each unit 

comes with one thermistor based temperature element plus selected pH, ISE, or redox 

elements. Like the CT2X and the PT2X, this sensor is noted for its small diameter (0.75”), 

low power usage, and dual protocol (Modbus ® and SDI-12). 

The TempHion can be used for precise single- or multi-well tracer tests, saltwater intrusion 

tracking, tidal infl uence studies, wastewater treatment discharge, and pH monitoring. 

Its patented reference electrode provides long-term stability for continuous or intermittent 

monitoring, making unattended insitu testing and monitoring possible without frequent 

calibrations or service. 

DO2 Dissolved Oxgen Sensor with Datalogging 

The Aquistar ® DO2 Dissolved Oxygen sensor represents the next generation in troublefree 

oxygen-sensing design. Utilizing fl uorescence of a stable, immobilized rutheniumbased 

fi lm matrix, the sensor employs precision optical transmission and detection to 

measure oxygen concentration in the fl uid outside of the sensor. Measurement is based 

on photons of light responding to oxygen outside of the sensor, rather than what passes 

through a sensor membrane. This design eliminates the need to compensate (calibrate) 

for changes in membrane permeability due to fouling or make up for oxygen consumption 

by the sensor itself (which requires water movement or fl ow). Unlike alternative optical 

designs (such as those based on luminescence), this sensor does not have a consumable 

component; this fl uorescence design negates the need to replace photo-bleached caps. 

The DO2 measures temperature, pressure, dissolved oxygen, and supply voltage. The 

internal microprocessor runs on 12 VDC and automatically turns the dissolved oxygen 

sensing unit on and off, as needed, to conserve power. This sensor is great for 

aquaculture, dam discharge monitoring, water treatment facilities, as well as long-term 

surface water monitoring and remediation performance studies. 

Turbo Turbidity Sensor with Datalogging 

The AquiStar ® Turbo Smart Sensor is an integrated datalogger and turbidity/temperature 

sensor. The Turbo records over 250,000 records of turbidity, temperature, and time data, 

operates with low power, and features easy-to-use software with powerful features. The 

internal microprocessor runs on 12 VDC and automatically turns the turbidity sensing unit 

on and off, as needed, to conserve power. A built in wiper cleans the sensing eye each 

time power is applied to the sensing unit. 

The Turbo can be used for effl uent treatment monitoring, hydrological run-off studies, 

drinking water fi ltration effi ciency, as well as industrial process analysis and many other 

types of monitoring. Available with either 316 stainless steel or titanium housing, this 

sensor is great in corrosive environments. 


Combination Sensors 

Compensator 

GDL Multi-channel Datalogger 



Multiparameter Sensor 

The Compensator is designed to sit at the surface and connect to a number of down-hole 

AquiStar ® Smart Sensors, returning the readings from all connected sensors plus surface 

temperature, barometric pressure, Compensator power supply voltage, and barometrically 

compensated down-hole pressure. The Compensator reads the sensors in real time and 

records sessions of data for later upload. The internal microprocessor runs on 12 VDC 

and can automatically turn the down-hole sensors on and off, as needed, to conserve 

power. 

The Multiparameter Sensor can accommodate changes to parameter and data needs, 

all within the AquiStar ® Smart Sensor family. This fl exible uni6t can measure pH, ORP, 

temperature, conductivity, salinity, TDS, pressure, level, and dissolved oxygen or turbidity, 

depending on confi guration. 

The AquiStar ® GDL Multi-channel Datalogger is an excellent bridge between your analog 

sensors and the power of the digital world. The GDL runs under the same powerful, easyto-use 

software as our Smart Sensor series—extending to your own analog sensors the 

same networking, programming, display, and export capabilities that have made our Smart 

Sensor series so popular. 

The GDL has two temperature, one milli-volt, two voltage, two 4-20 mA, and up to eight 

digital channels, depending on confi guration. Measure temperature, level, dissolved 

oxygen, fl ow, rainfall, turbidity, and more. 

An internal AA alkaline battery pack supplies 12 VDC to the GDL and optionally to connected 

sensors. Solar and line power options are available where more power is required. 

In addition to INW’s software, use standard Modbus ® RTU or SDI-12 equipment to easily 

read the GDL, so as to tie into your existing networks. Combine your analog sensors, 

a GDL, several AquiStar Smart Sensors, and our WaveData wireless technology for an 

extremely powerful and versatile data acquisition system.

AquiStar ® Smart Sensor Applications 

Single Well with Local Data Upload 

Strain relief 

Cable 

Well cap 

Service port 

Desiccant 

Well casing 

Sensor 

Laptop 

Drive-by Data Collection via Radio 

Well One Well Two Well Three 

Communication cable 


Pump Testing 



Data Retrieval via the Internet 

Cell Modem 

Radios 

Wells 

Monitoring 

Well 

Well 

Monitoring 

Well 

Internet 

Cell Tower Home Offi ce 

Single well with cellular modem 

Housing with both 

cell modem and 

host radio 

Pumping Well 

with Sensor 

Cell Tower 

Internet 

Monitoring 

Well 

Multiple wells with radios 

and a cellular modem 

Home Offi ce

Storm Monitoring 

Wind 

Rain 

Stream Gauging 

PT12 


Temperature 

Level 

HIF compliant 

stream gauging 

Solar Power 

0.01 ft. ( 0.03 cm) accuracy 

at 0° to 40° C 

Turbidity 

Streambed 

GDL Datalogger 

Stream gauging 

without vent tubes 

Power 

Supply 

0.02 ft. (0.05 cm) accuracy 

at 0° to 40° C 

PT12 with autocompensating 

barometric unit 

Cell 

Modem 


Software 

Aqua4Plus Control Software 

• Multi-layered control program for all 

AquiStar ® Smart Sensors 

• Access multiple sensors, each with 

multiple test sessions 

• Control a network of radios and sensors 

Create fl exible, 

powerful 

test sequences 

Monitor real-time data 

Display data in tabular 

or graphic format. 


Access multiple sensors 

• View sensor status 

• Monitor real-time data 

• Display data in tabular or graphic format 

• Easy import into spreadsheets and databases 

View sensor status 

Export to Excel or 

other spreadsheets and 

databases for further 

analysis.

Aqua4Push Automatic Polling/Data Upload Software 

Data Management Systems 

• Access your environmental data via the Internet 

• Organize, view, and visualize your data 

• Organize data by location in a hierarchical tree 

• Map on geographical maps, drawings, or picture 

Software 

• Scheduled data collection from multiple sensors 

• Automatic barometric adjustment for 

absolute pressure sensors 

• Built-in telemetry capabilities 

• Generates single data fi le (.csv) 

• Automatic data fi le upload to designated 

Internet site (FTP) 

• Easy import into spreadsheets and databases 

• Generate, export, and email graphs and reports 

• Assign users with various permissions 

• Search for locations based on several criteria 


Related Products 


AquiStar ® Related Products 

WaveData ® Wireless Data Collection Systems 

• Connect with any AquiStar Smart 

Sensor network 

• Upload to the Internet 

• License free radios 

• Cellular modems 

SIMbox / SIMtube GPRS Datalogger 

• Modbus & SDI-12 

• Internal GPRS/GSM modem 

• Programmable input/output drivers 

• 1 RS-422/485 input 

• Easy-to-use software 

• Long life batteries 

• Power supplies with solar and/or line 

charging options 

OMC-45 Datalogger 

• Easy Windows-based programming • 0-10 volt sensor input 

• Built-in modem 

• Digital input 

• RS232 sensor input 

• Potentiometric input 

• RS485 sensor input 

• Pulse counter 

• 4-20 mA sensor input 

Panel Meters 

• Compatible with most AquiStar ® 

sensors 

• Real-time meter display 

• 6-digit, sunlight readable LEDs 

• 4-20 mA output 

PT12 Pressure/Temperature Sensor 

• Absolute or gauge versions 

• Thermally compensated 

• ± 0.06% FSO typical accuracy 

• SDI-12 and Modbus ® RTU protocol 

PT12-BV Pressure/Vacuum Sensor 

• SDI-12 and Modbus ® RTU protocol 

• Optional body styles – IP67 box or 

316SS tube 

• ± 0.06% FSO typical accuracy 

Field Computer 

• Small, rugged, lightweight 

• Full Windows operating system 

• Sunlight readable 7” (178cm) 

display 

• 2 analog, 0-20 mA inputs 

• 2 analog, 0-3.6 VDC inputs 

• Optional other inputs 

• RS485/Modbus ® communication 

• On/off relay control 

• 24 VDC or 120 VAC power 

• Rugged NEMA 4 case, optional 

• Ranges from 5 - 300 PSI 

• 316 SS or titanium, fl uoropoloymer, and PTFE 

• Small diameter – 0.75” 

• 6 - 16 VDC operating power 

• 6 - 16 VDC operating power 

• Automatic barometric compensation for 

connected absolute pressure sensor 

(SDI-12 only) 

• Integrated numeric keypad 

• Optional QWERTY keyboard

AquiStar ® Technical Data 

PT2X Pressure / Temperature Smart Sensor with Datalogging 

Cableless 

0.25” (0.6 cm) 

shorter 

GENERAL 

Length 12.025” (30.5 cm) cabled 

11.775” (29.9 cm) cableless 

Diameter 0.75” (1.9 cm) 

Weight 0.8lb. (0.4 kg) 

Body Material Acetal & 316 stainless steel or titanium 

Wire Seal Materials Fluoropoloymer and PTFE 

Communication RS485 Modbus ® RTU 

SDI-12 (ver.1.3) 

Direct Modbus Read Output 32-bit IEEE Floating point 

SDI-12 Output ASCII 

Operating Temp. Range3 -15° C to 55° C 

Storage Temp. Range1 -40° C to 80° C 

LOGGING 

Memory 4MB - 520,000 records 

Programmable Baud Rate 9600, 19200, 38400 

Logging Rate 8x/sec maximum 

POWER 

Internal Battery 2x1.5V AA Alkaline 2 

Auxiliary Power 12 VDC - Nominal 

6-15 VDC - Range 

TEMPERATURE 

Element Type Digital IC on board 

Accuracy ± 0.5° C 

Resolution 0.1° C 

Range -40° C to 80° C 

PRESSURE 

Transducer Type Silicon strain gauge 

Transducer Material 316 stainless steel or titanium 

Pressure Ranges 

Gauge 

FtH O 2 5 2.3, 5.8, 12, 35, 69, 115, 231, 692 

mH O 2 5 0.7,1.75, 3.5,10.5, 21, 35, 70, 210 

Absolute 

FtH O 2 5 46, 69, 115, 231, 692 

mH O 2 5 14, 21, 35, 70, 210 

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 

Burst Pressure4 3.0 x FS 

Compensated Range 0° C to 40° C 

1 Storage without batteries 

2 Lithium available upon request 

3 Requires freeze protection kit if in water below freezing 

4 Burst reduced at PSI>300 

5 Higher Pressure ratings available upon request 

PT2X-BV Barometric / Vacuum Smart Sensor with Datalogging 

3.32” 

2.625” 

2.362” 




4.214” 

3.543” 

Information in this document is subject to change without notice. 

0.28” 

(0.7cm) 

GENERAL 

Enclosure Material ABS - IP66/67 (Available in a tube, also. 

Contact INW for details.) 

Dimensions (w/o connectors) 4.3” x 3.1” x 2.5” (10.9 x 7.9 x 6.4 cm) 

Wire Seal Materials Fluorocarbon and Buna N 

Communication RS485 Modbus ® RTU / SDI-12 (ver.1.3) 

Direct Modbus Read Output 32-bit IEEE Floating point 


Operating Temp. Range -20° C to 60° C 


LOGGING 




POWER 


Auxiliary Power 12 VDC - Nominal / 6-15 VDC - Range 

TEMPERATURE 



Resolution 0.1°C 


PRESSURE 

12.025” (30.5 cm) 

Diameter 

0.75” (1.9 cm) 

Transducer Type 16 PSIA (1102 mBar) silicon strain gauge 


Static Accuracy ± 0.5% FSO typical 

(B.F.S.L. 25° C) ± 0.1% FSO maximum 


Burst Pressure3 2.0 x FS 

Compensated Range 0° C to 40° C 


CT2X Conductivity / Pressure Smart Sensor with Datalogging 

0.28” 

(0.7 cm) 

Cableless 

0.25” (0.6 cm) 

0.28” 

shorter 

(0.7 cm) 

GENERAL 

Length 12.65” (32.1 cm) 

16.15” (41 cm) w/ pressure 




Wire Seal Materials Fluoropoloymer and PTFE 

Submersible Cable Polyurethane, Polyethylene, or FEP 

Cable Weight 4lbs./100 ft (1.8 kg/30 m) 

Protection Rating IP68, NEMA 6P 

Desiccant 1-3mm indicating silica gel (high or 

standard capacity) 

Terminating Connector Available 

Communication RS485 Modbus ® 

SDI-12 (ver.1.3) 

Operating Temp. Range3 -15° C to 55° C 



12.65” (32.1 cm) 

16.15” (41 cm) 

Conductivity/Temperature Version with Level Option 

Conductivity/Temperature Version 

LOGGING 


Log Types Variable, user-defi ned, logarithmic, profi led 



Software Complimentary Aqua4Plus or Aqua4Push 

Networking 32 available addresses per junction 

w/ batching capabilities (up to 255) 

File Formats .xls / .csv / .a4d 

POWER 



Auxiliary Power 12 VDC - Nominal 


Exp. Battery Life 12 months at 15m polling interval7 1 Storage without batteries 


3 Requires freeze protection kit if using pressure option in water below freezing 


5 Higher pressure ratings available upon request 

6 Accuracy reduced at levels

Compensator 

GENERAL 

Weatherproof Box 

Enclosure Material ABS - IP66/67 

Dimentions w/ Internal 9.1” x 3.1” x 2.6” 

Power Supply (box) (23 x 7.9 x 6.5 cm) 

Dimentions (incl. connectors) 9.1” x 3.6” x 2.6” 

(23 x 9.1 x 6.5 cm) 

Dimentions w/o Internal 4.3” x 3.1” x 2.6” 

Power Supply (box) (10.9 x 7.9 x 6.5 cm) 

Dimentions (incl. connectors) 4.3” x 3.1” x 2.6” 

(10.9 x 9.1 x 6.5 cm) 


Desiccant High- and standard-capacity packs 



SDI-12 (ver.1.3) 

Direct Modbus Read Output 32-bit IEEE fl oating point 


Internal Math 32-bit fl oating point 

Operating Temp. Range -20° C to 60° C 


LOGGING 

Memory 4MB 









Without internal power supply. With internal power supply. 

4.3” (10.9 cm) 

2.6” (6.5 cm) 

AVAILABLE SENSORS 

CT2X Conductivity, temperature, pressure 

PT2X Pressure, temperature 

POWER 

Internal Battery 12 VDC 

External (optional) 6 - 15 VDC 

TEMPERATURE LOGGING (1 BUILT-IN) 



Resolution ± 0.1° C 


Units Celsius, Fahrenheit, Kelvin 

BAROMETRIC LOGGING (1 BUILT-IN) 

Transducer Type 16 PSIA (1102 mBar) silicon strain gauge 


Units PSI, FtH O, inH O, cmH O, mmH O, mH O, 

2 2 2 2 2 

inHg, cmHg, mmHg, Bars, mBars, kPa 

Static Accuracy ± 0.5% FSO (typical) 

± 0.1% FSO (maximum) 

(B.F.S.L. 20° C) 


Compensated Range 0°C to 40° C 

VOLTAGE (2 BUILT-IN) 

9.1” (23 cm) 

The Compensator has two 5-pin connectors (one for communication and one for down-hole sensors), and a vacuum port. 

Power Supply Logging Range: 6 - 15 VDC 

Secondary Voltage Logging Range: 0 - 28 VDC 





TempHion pH/OPR or ISE Smart Sensors with Datalogging 

0.28” 

(0.7cm) 

GENERAL 

Length 17.775” (45.1 cm) 




Wire Seal Materials Fluoropolymer and PTFE 

Submersible Cable Polyurethane, polyethylene, or FEP 



Communication RS485 Modbus ® Millivolt Channels 

RTU 

SDI-12 (ver.1.3) 

No. Available Channels 2mv, 1 temp (ph/ORP) / 1mv, 1 temp (ISE) 

Range ± 1200mV 

Accuracy 0.1% value 

Resolution 0.1mV 

Operating Temp. Range 0° C to 55° C 

Storage Temp. Range1 Reference 

-20° C to 80 °C 

Electrode Ag/AgCI solid-state electrode 

Junction Patented capillary liquid junction 

Electrolyte TempHionTM reference solution 

Maximum Depth 700 ft (210 m) | 300 PSI (ph/ORP) 

230 ft (70 m) | 100 PSI (ISE) 

LOGGING 









POWER 

Internal Battery 2x1.5V AA alkaline 2 

Auxilliary Power 12 VDC - Nominal 


Exp. Battery Life 18 months at 15 min polling interval 3 



3 May vary due to environmental factors 


17.775” (45.1 cm) 

TEMPERATURE 

Element Type 30K ohm thermistor 

Element Material Epoxy bead/external housing 





pH/ORP 

Sensor Type/Material 

pH Glass combination electrode 

ORP 

Ranges 

Platinum ring 

pH 0-14 pH units / -538mV to 260mV 

ORP ± 1200mV 

Units 

Typical Accuracy 

pH, mV, Eh 

pH ± 0.2 pH units 

ORP 

Resolution 

0.1 mVH 

pH 0.01 pH units 

ORP 0.01 mVH 

Compensated Range 

Calibration 

0°C to 40°C 

pH One or two point calibration 

w/ pH buffers (7 & 4 or 10) 

ORP EH one point calibration 

Reference Solution Potassium Nitrate - (KNO ) 3 

CHLORIDE or BROMIDE (ISE) 

Measurement Principle Ion electrode method 

Probe Material Ag/AgCI solid state electrode 

Range 0-10,000 ppm 

Typical Accuracy ± 2.0% of measured value 

Resolution 0.1 ppm 

Thermal Compensation Isopotential point characterization 

Calibration One or two point method 

w/ ionic strength adjustment 

Reference Solution Potassium Nitrate - (KNO ) 3 

ø 

0.75” 

(1.9 cm)


DO2 Dissolved Oxygen Smart Sensor with Datalogging 

GENERAL 

Probe Diameter 1.66” (4.22 cm) 

Tube Material Acetal & 316 stainless steel or titanium 

Probe Material Epoxy, polyurethane, and PVC 

Wire Seal Material Fluoropolymer and PTFE 

Submersible Cable Polyurethane, polyethylene, or FEP available 







LOGGING 

Memory 260,000+ records 








SENSOR 

Measuring Range 0 - 25 ppm 

Accuracy 1% of reading or 0.02 ppm — whichever is greater 

Sensitivity / Resolution 0.01 ppm below 4.0 / 0.1 ppm above 4.0 

Stability 0.01 ppm 

Repeatability 0.01 ppm 

Sensor Drift Less than 1% per year 

Temperature Range 0°C to 55°C 

Respone Time 95% in less than 60 seconds 

Maximum Pressure 100 PSI 

POWER 

External Power Pack Required 9 - 15 VDC 

INW Power Pack described below 

Other power options available. Contact INW for details. 


T8 Thermistor Temperature Smart Sensor with Datalogging 

GENERAL 

Enclosure Material ABS - IP66/67 

Dimensions (box) 5.5” x 3.1” x 2.6” (14 x 7.9 x 6.6 cm) 

Dimensions (incl. connectors) 6” x 3.1” x 2.6” (15.2 x 7.9 x 6.6 cm) 


Standard Cables Check with INW for available cable types 

Cable Diameter 0.28” (0.7 cm) 

Thermistor Node Diameter 0.50” (1.3 cm) 

POWER 

Internal Battery 2 AA alkaline batteries 

Auxilliary Power 6 - 13 VDC, 15 mA 

TEMPERATURE 

Accuracy ± 0.2° C (at 25° C) 


Range -35° C to 105° C 

Communication Modbus ® RTU 



Turbo Turbidity Smart Sensor with Datalogging 

GENERAL 

Length 15.87” (40.3 cm) w/ cable harness 

16.43” (41.7 cm) w/ NPT adapter 

Probe Diameter 1.29” (3.3 cm) 

Tube Material Acetal & 316 stainless steel or titanium 

Probe Material Composite 

Wire Seal Material Fluoropolymer and PTFE 

Submersible Cable Polyurethane, polyethylene, or FEP available 



SDI-12 (ver.1.3) 




Storage Temp. Range -20° C to 50° C 

LOGGING 


0.28” (0.7 cm) 

Memory 260,000+ records 










Tube 

Diameter 

15.87” (40.3 cm) 

16.43” (41.7 cm) w/ NPT option 

0.75” (1.9 cm) 

1.29” (3.3 cm) 

SENSOR 

Probe 

Diameter 

Measuring Range 0 - 1000 NTU 

Accuracy 2% at 25° C 

Repeatability ± 2% at 25° C 

Temperature Range 0° C to 40° C 

Maimum Depth 164 ft (50 m) 

POWER 

External Power Pack Required 9 - 15 VDC 

Other power options available. Contact INW for details. 

Wiper

GDL Multi-Channel Datalogger 

GENERAL 

Enclosure Material Polycarbonate (IP67) 

Dimensions (w/o connectors) 5.5” x 3.1” x 2.6” 

(14 x 7.9 x 6.6 cm) 

Communication RS485 Modbus 

SDI-12 (ver.1.3) 


POWER SUPPLY 

Internal 12 VDC or 3 VDC (AA alkaline cells) 

Auxiliary 6.0V - 24.0V (not to exceed 24.0V) 

Switched voltage channel Up to 48V at 50 mA (current limited to 65mA) 

Power consumption* Sleep mode w/ 3 volts: 200 uW 

Active mode w/ 3 volts: 10.5 mW 

Sleep mode w/ 12 volts: 625 uW 

Active mode w/ 12 volts: 11 mW 

*Exclusive of digital expansion board and any attached devices 

TEMPERATURE CHANNELS 

Element Type 30K Ohm Thermistor 

Element Material Epoxy bead/external housing 


Resolution 0.1° C (optional 0.06° C [up to 50° C]) 

Range -35° C to +105° C 

(Other ranges and resolutions available) 


RESISTANCE CHANNELS 

Range 300 - 34M ohms 

Accuracy 

(at 25 

1% or better (300 - 3.7K ohms) 

° C) 0.1% or better (3.7K ohms - 3.2M ohms) 

1% or better (3.2M to 34M ohms) 


Top view Front view 

Communications 

Connection 

MILLIVOLT CHANNEL 

Differential measurement range ± 150mV 

Common mode voltage range -150mV .. +3.75V 

Ranges ± 150 mV Resolution 4.578 μV 

± 75 mV Resolution 2.289 μV 

± 37.5 mV Resolution 1.144 μV 




Excitation voltage 3.00V 

(for precision excitation of strain gauge sensor) 

VOLTAGE CHANNELS 

Differential measurement range ± 6.0 V 

Common mode voltage range -6.0V .. +15.0V 

Ranges ± 5 V Resolution 183.108 μV 

± 2.5 V Resolution 91.554 μV 





4-20 mA CHANNELS 

Range 0 to 24 mA 

Resolution 730 nA 

Common mode voltage range 0V .. 5.25V 

DIGITAL CHANNELS 

Optional digital channels available for: 

Dissolved Oxygen 

Heart Rate 

Rain Gauge 

Custom (Contact INW for details) 

Sensor Connections, 

as needed 



Multiparameter Smart Sensor with Datalogging 

GENERAL 

Adapter 


Material Acetal 

Strain Relief Kit 

Sensor Tubes 

Included 

Tube Material 316 stainless steel or titanium 

Wire Seal Materials 

Cable 

Fluoropolymer and PTFE 

OD 0.28” (0.7 cm) maximum 

Break Strength 138 lbs. (62.7 kg) 

Maximum Length 2000 feet (610 m) 

Weight 4 lbs. per 100 feet (1.8 kg per 30 m) 

RANGE, RESOLUTION, ACCURACY 



COMMUNICATION 


SDI-12 (ver.1.3) 




POWER 

External 12 VDC 

RANGE RESOLUTION ACCURACY 

Level/Pressure 16bit ± 0.06 FSO typical 

Gauge PSIG 1 - 300 PSI ± 0.1 FSO maximum 

Gauge mH O 2 

Gauge FtH O 2 

Absolute PSIA 

0.7 - 210 mH O 2 

2.3 - 689 FtH O 2 

20 - 300 PSI 

(B.F.S.L. 25° C) 

Absolute mH O 2 

Absolute FtH O 2 

14 - 210 mH O 2 

46 - 689 FtH O 2 

Conductivity 0 - 100 mS/cm 0.001 mS/cm ± 0.5% of measured value 

Salinity 0 - 70 PSU 0.01 PSU ± 1% of reading or 0.1 PSU, 

whichever is greater 

TDS 4.9 - 49,000 mg/L 0.1 mg/L ± 0.5% of measured value 

pH 1 - 14 pH units 0.01 pH units ± 0.2 pH units 

ORP ± 1200 mV 0.01 mVH 0.1 MVH 

Dissolved Oxygen 0 - 25 ppm 0.01 pp, when 4.0 ppm whichever is greater 

Turbidity 0 - 1000 NTU ± 3 NTU 2% at 25° C 

Temperature -5°C to 60° C 0.1° C ± 0.5° C 

CONFIGURATIONS - Available in fi ve standard options. (For additional confi gurations, contact your INW sales representative.) 

OPTION ONE OPTION TWO OPTION THREE OPTION FOUR OPTION FIVE 

Level/Pressure �� 

Conductivity/Salinity/TDS �� 

pH/ORP �� 

Dissolved Oxygen �� 

Turbidity �� 

Temperature ��

Communication / Software 

AquiStar ® Smart Sensor Accessories 

Smart Sensor Comm. Kit 

USB/485 cable, with 

AquaPlus Software 

media 7A21851 

Smart Sensor Comm. Kit 

RS232/RS485 adapter, USB/232 

cable, with AquaPlus 

Software media 7A21847 

Aqua4Push License 

Automated Polling Software 

1 license per sensor 7A24862 

USB Communication Cable 

5-pin round connector to 

USB connector 3B844 

Serial Communication Cable 

5-pin round connector to 

9-pin D-sub 3B835 

USB to Serial Adapter 

RS485/RS232 Adapter 

3B846 

3B830 

Junction Box 

Two Smart Sensors 7A22100 

Additional Connections 7A22105 

Auxiliary Power Kit 

For use with AquiStar Smart 

Sensors 12V, 2200 mA/hr 7A60865 

Additional Connections 7A22105 

Field Computer 

T7000 Rugged 

Tablet PC CALL 

Cable and Cable Accessories 

Sensor Cable 

Submersible, Standard 

9-conductor PU 7A23540 

9-conductor PE 7A23542 

9-conductor FEP 7A23543 

9-conductor Tefzel ® 7A23544 


Submersible, Metric 


9-conductor PE 7A23642 

9-conductor FEP 7A23643 

9-conductor Tefzel ® 7A23644 


Multiparameter Adapter 

Connect up to three 4T363 

Smart Sensors on one 

cable. (for PT2X, CT2X, 

and TempHion) 

Water Resistant Service 

Connector (5-pin) 

Connector with cap 3B834 

Cap only 3B831 

Cable Reel 

Plastic 

200’ (60m) capacity 7A22520 

Steel 

500’ (150m) capacity 7A22525 

1500’ (460m) capacity 7A22530 




Calibration Solutions & Buffers 

INW Reference Solution 

1 oz - for TempHion, for 

pH, Bromide, or Chloride 7A13370 

INW Reference Solution 

1 oz - for TempHion, for 

Nitrate 7A13372 

TempHion Reference 

Solution Cap 

4T353 

TempHion Calibration Kit 

Includes stand, beaker, 100 mL 

measuring cup, and pipette 

7A11105 

Buffers 

pH 4 buffer (1 liter) 7A12311 



pH 4 buffer (4 liters) 7A12302 



Calibration Standards 

Bromide calibration standard 

0.1 Molar NaBr (475 mL) 7A12508 

Bromide calibration standard 

0.1 Molar NaCl (475 mL) 7A12505 

Conductivity standard 

12.88 mS/cm, Aurical 

(500 mL) 7A12610 

Conductivity standard 

1413 μS/cm, Aurical 

(500 mL) 7A12615 

Miscellaneous Accessories 

Desiccant Tube 

With blue indicating gel 

and hydrophobic fi lter 

12 inch tube 6E459 

Desiccant Tube Refi ll Bottle 

Blue indicating gel 

18 refi lls 7A14475 

End Cone Adapter Kit 

For PT2X and PT12 

(w/adapter and O-ring) 7A40013 

1/4” FNPT Adapter 

For PT2X and PT12 

Kit 

Adapter, 2 set screws, 

O-ring, and allen wrench 6E410T 

Factory installed in place of 

end cone 7A40405 

Cap for Cableless Sensors 

For cableless versions of 

the PT2X, CT2X, and 

TempHion 3C038 

Anti-Fouling Kit for CT2X 

Reduces growth of algae, 

barnacles, and other aquatic 

life on the elements. Kit 

contains copper mesh, heat 

shrink, and cable ties. 7A41415 

Transducer Strain Relief Kit 

Comes with grip and 

chain lead, and two 

cable ties 7A50517

Water Level Indicators 


Heron dipper T 

High tensile steel tape 

with polyethylene jacket 

5/8” (16mm) diameter probe 

100 ft / 30 m 5A101 

150 ft / 45 m 5A102 

200 ft / 60 m 5A103 

300 ft / 100 m 5A104 

500 ft / 150 m 5A105 

Heron Water Tape 

Polyethylene tape, reinforced 

with Kevlar ® fi bers 

5/8” (16mm) diameter probe 

100 ft / 30 m 5A111 

150 ft / 45 m 5A112 

200 ft / 60 m 5A113 

500 ft / 150 m 5A114 

Heron Skinny dipper 

Narrow polyethylene tape 

1/4” diameter probe 

100 ft 5A118 

300 ft 5A119 

Well Completion 

Well Seal Adapters 

Aluminum with strain 

relief kit 

2” well seal adapter 7A51902 

4” well seal adapter 7A51904 

Docking Stations 

Locking well cover with 

support ring 

2” docking station 7A50150 

4” docking station 7A50151 


How to Order 

INW Makes Buying Easy! 

INW believes that your needs should be met. We pledge the delivery of quality equipment — 

calibrated, functionally tested, and with operating documentation. 

INW’s sales department and technical engineers are available via telephone or email to ensure 

that your purchasing experience goes smoothly. 

We offer generous terms. If you do not already have an account with us, our sales team would be 

glad to help you set one up. For your convenience we also accept Visa, MasterCard, and American 

Express. 

Not sure you are ready to buy? Rent the equipment and take it for a test drive! 

Corporate Sales Offi ce 

8902 122nd Avenue NE, Kirkland, WA 98033 

1-800-PRO-WELL (776-9355) 

425-822-4434 

425-822-8384 fax 

sales@inwusa.com 

California Sales Offi ce 

4620 Northgate Blvd., Suite. 170, Sacramento, CA 95834 

1-866-928-7760 

916-922-2900 

916-648-7766 fax 

inwsw@inwusa.com 

24 - INW- www.inwusa.com

For almost 30 years, Instrumentation Northwest has grown as a 

company and so have our product lines. Instrumentation Northwest is 

dedicated to creating a quality living environment through environmental 

systems and sensors that investigate, remediate, and prevent water 

pollution problems. Inside this product guide you will find our AquiStar ® 

Smart Sensor product line — dedicated to bringing environmental data to 

your desktop. Our desire is that you will find this guide useful and 

beneficial to your work. So give us a call — our sales and support staff 

are always happy to work with you to make your project a success. 

Sales and Service Locations 

8902 122nd Avenue NE, Kirkland • Washington 98033 USA 

(425) 822-4434 • (425) 822-8384 FAX • info@inwusa.com 

4620 Northgate Boulevard, Suite 170 • Sacramento, California 95834 

(916) 922-2900 • (916) 648-7766 FAX • inwsw@inwusa.com 

Doc#6C0100r3 8/14/12 

1-800-PRO-WELL 

WWW WWW.INWUSA.COM 

WWW .INWUSA.COM

Smart Sensor Product Guide - INW

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