Product Details

AquaSensors Dissolved Oxygen DataStick



Product Features


:DataStick provides universal conversion of sensor signals and interactive communications for measurement, calibration, configuration and diagnostics

:: The D.O. sensor use thee-electrode polarographic Clark Cell technology consisting of a silver reference electrode, a silver anode and a gold cathode

:: Pre-calibrated (no field calibration required)

:: Plug & play sensor heads

:: Rugged, foul resistant membrane

:: Electrode protection options

:: Simple membrane cap replacement

:: Direct data reporting (24-bit)

:: Plug & play industrial communications adapters




Product Specification



Range : 0 to 40 ppm*; 0 to 200% saturation


Resolution: 0.01 ppm


Accuracy: 1% of reading

Step Response Time

90% in 90 second

Operational Environment

Temperature Range: –5 °C to 50 °C
Maximum Pressure: 65 psig @ 50 °C
Maximum Flow Rate: 10 ft/second

Requirements #

Voltage Range: 10 to 30 VDC
Maximum Power: 200 mW
Typical Power: 120 mW


Process Electrodes: Gold cathode, silver anode,
silver reference (3 electrode polarographic
clark cell)
Membrane: FEP Teflon®
O-rings: Viton® (other materials available)
Sensor Head Material: PEEK
DataStick Material: 316 stainless steel, PEEK or
1.2 lbs (PEEK or CPVC)
2.6 lbs (316 stainless steel)

Units of Measure

Measurement units: ppm, ppb *,%
Temperature Units: °C, °F


Air: Automatically adjusts for set pressure
Sample: 1 point
Zero: 1 point
Temperature: 1 point


Salinity: 0 mS/cm to 999.9 mS/cm
Pressure: 539.2 mm Hg to 792.4 mm Hg
Temperature: Automatic from –5 °C to 50 °C


Immunity & Emissions:
CE Certified 89/336/EEC: CISPER 11, EN61000
(-4-2,-4-3,-4-4,-4-6, 4-8)
Safety: cULus Listed; 367G E303570
Hazardous Locations: Haz Loc Class 1, Division 2,
Groups A, B, C, D. Max Ambient 50 °C

* Typical at 25 °C Performance unaffected by cable length
# Class II DC power supply required
** Ozone and Temperature are precalibrated at the factory
Note: Separate DO sensor heads for ppm and ppb measurements



Municipal and industrial wastewater,Aquaculture,Brewing,Fermentation,Bio-processing, Boiler feed water (ppb),Pharmaceutical (ppb),Semiconductor manufacturing (ppb),Ultrapure water (ppb),Power plants (ppb)


Ordering Information (Conductivity Sensor)


Part No.




Body Material (b)

1 = Stainless Steel
2 = CPVC
3 = PEEK

Mounting (t)

1 = 1 inch NPT front/back
2 = 1 inch NPT front only
3 = 1 inch Tri-clamp
4 = 2 inch Tri-clamp
5 = 3 inch Tri-clamp
6 = 4 inch Tri-clamp


Communications Adapter

Body Material (b)

1 = 316 Stainless Steel
2 = CPVC
3 = PEEK
4 = Ryton

Communications (nw)

1A = RS232 ASCII
2B = Modbus® RTU
2A = Modbus RS232
4B = CANopen
7R = Ethernet
5R = DeviceNet
8R = USB

Cable Length (x)

1 = 10 feet
2 = 20 feet
3 = 30 feet

Cable Termination (y)

A = Stripped Wires


D. O. Sensor Head (ppm)

Body Material (b)

3 = PEEK

Electrode Type (t)

1 = Gold/Silver

Sensor Tip (x)

A = Protected
B = Process Flat
C = Face Seal for Flow Chamber

Fill Solution (y)

1 = Standard

Membrane (z)

A = FEP Teflon®
B = FEP Membrane with Stainless Steel Mask


Trace D. O. Sensor Head (ppb)

Body Material (b)

3 = PEEK

Electrode Type (t)

1 = Gold/Silver

Sensor Tip (x)

B = Process Flat
C = Face Seal for Flow Chamber

Fill Solution (y)

1 = Standard

Membrane (z)

A = FEP Teflon®

Note: Consult for additional configurations and accessories


Thermo Scientific AV38 DataStick Local Monitor and Controller


DataStick™ Local Monitor and Controller


:: Connects to any DataStick system
:: Convenient ¼ DIN enclosure

:: Display sensor and temperature data

:: Menu functions: Calibration, configuration and diagnostics

:: Digital protocol options for remote measurement, calibration, configuration and diagnostics

:: Two 4 to 20 mA current outputs

:: Two Form C relays for alarm, control and wash

:: PID controller for use with pH and conductivity

:: 7 conduit knockouts for easy cabling




Product Specification


Mounting Options

Wall-mount Enclosure: NEMA 4X
Panel-mount: ¼ or ½ DIN NEMA
4X panel mount available
Display Only: with NEMA 4X gasket

User Interface

Display: 2 line by 16 character LCD
Backlight: High contrast green
Keypad: 4 directional arrows, MENU,

Environmental Conditions

Ambient Operating Temperature Range:
–20 to 65 °C
Maximum Relative Humidity:
95% non-condensing

DataStick Sensor Connections

Supports 1 to 255 Modbus® RTU DataStick Sensors of any type
Supported Sensors: pH, ORP, two electrode conductivity, two electrode resistivity, toroidal
conductivity, dissolved oxygen (ppm and ppb) dissolved ozone, drinking water and wide-range turbidity, suspended solids and free chlorine

4 to 20 Milliamp Current Output Options

Assignable parameters
PID function when pH or conductivity parameter selected Loop power provided by AV38


Two 1 amp Form C relays with NO and
NC contacts
Assignable parameters
Configured for alarm, control and timer


Options to Host Computer Network:
MODBUS® RTU, DeviceNet,
Modbus RS232, RS232 ASCII, CANopen,
Ethernet IP, Modbus TCP, TCP/IP
Others: Consult factory

Power Supply

Input: 10 to 30 VDC or 100 to 240 VAC
Power: 2W at 25°C


Meets CE requirements for heavy
industrial use


Order Information


Part No.



Local Monitor/Controller

Current Outputs (v)

B = One
C = Two

Mounting (w)

B = ¼ DIN NEMA 4X Wall-mount Enclosure

Communications (x)

0 = None
1 = RS232 ASCII
2 = Modbus RS232
4 = MODBUS RTU (for Modbus + Profibus)
5 = DeviceNet
6 = CANopen
7 = Ethernet IP, Modbus TCP, TCP/IP

Relays (y)

A = None
C = Two

Power (z)

1 = 24 VDC
2 = 100 to 240 VAC


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Dissolved Oxygen DataStick
AV38 Datastick Local Monitor And Controller

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