Product Details

AquaSensors Wide Range Turbidity DataStick



Product Features


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

:: 0 to 4000 NTU measurement range

:: Conforms to ISO 7027

:: 90 degree and 180 degree light paths

:: Rugged, foul resistant construction

:: Local and remote configuration and diagnostics

:: Temperature measurement included

:: Direct data reporting

:: Plug and play industrial communications adapters




Product Specification



Range: 0 to 4000 NTU

System Performance†

Resolution: 0.1 NTU


Accuracy: 1% of reading

Step Response Time: 90% in 15 seconds

Operational Environment

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


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


Windows: Quartz
Optical Topology: Detection at 90 degrees and
180 degrees to source
O-rings: Viton®
Sensor Head Material: Polycarbonate
Weight 1.2 lbs

Units of Measure

Turbidity Mode: NTU
Temperature Units: °C, °F


Sample: 1 and 2 point
Zero: 1 point
Temperature: 1 point


Turbidity: 90 degree/180 degree, narrow beam,
IR light
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. T5 Max
Ambient 50 °C

† Note: Typical at 25 °C Performance unaffected by cable length
‡ Note: Class II DC power supply required
†† Note: Turbidity and Temperature are precalibrated at the factory



Drinking water, Raw water monitoring, Back wash monitoring, Wastewater effluent, Process clarity monitoring


Ordering Information (Conductivity Sensor)


Part No.



DataStick and Communications

Mode (b)

1 = Turbidity

Back-Body and
Material (x)

1 CPVC 1-Inch NPT
2 316 Stainless Steel 1-Inch NPT

Communications (y)

4 = Modbus® RTU
5 = DeviceNet
6 = CANopen
7 = Ethernet
8 = USB

Cable Length (z)

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

Note: Consult for additional configurations and accessories


Thermo Scientific AV38 DataStick Local Monitor and Controller


Features & Benefits


:: 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 functions


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

Note: Consult for additional configurations and accessories


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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Wide Range Turbidity DataStick
AV38 Datastick Local Monitor And Controller

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