Product Details

AquaSensors Low Range Turbidity System



Product Features


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

:: Meets or exceeds USEPA method 180.1

:: 135 mL sample chamber

:: Compact mounting foot print

:: Digital network interface

:: Local interface with current outputs and relays

:: Low flow rate

:: Temperature measurement included

:: Plug and play industrial communications adapters




Product Specification



Range: 0 to 200 NTU

System Performance

Resolution: 0.1 NTU


Accuracy: ±2% of reading or ±0.015 NTU whichever is greater. ±5% of reading above 40 NTU

Operational Environment

Water Temperature Range: –5 °C to 50 °C
Air Temperature Range: –20 °C to 60 °C
Maximum Flow Rate: 500 mL/min (7.9 gal/hr)
Minimum Flow Rate: 250 mL/min (4 gal/hr)


Voltage Range: 24 VDC or 100-240 VAC
Maximum Power: 8W with AV38 DataStick &
light source
Typical Power: 6W with AV38 DataStick & light source


Light Source: White Light (Tungsten)
Sample Chamber Material: ABS plastic
Sample Chamber Volume: 135 mL
Light Source Housing: Anodized aluminum
Mounting Plate: 12 x 12 inches, 4 mounting holes
Sensor Head Material: Quartz glass, anodized
Weight: 5.6 lbs

Units of Measure

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


Sample: 1 point
Zero: 1 point
Temperature: 1 point


Display: 2 lines, 16 characters, 7 key menu navigation
Current Outputs: 1 standard, 2nd optional
Relays: 2 Form C (optional)


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



Drinking water, Filter monitoring membrane filtration, Distribution monitoring, Wastewater effluent (clarified), Packaged water systems, Food & beverage process, Pharmaceutical process water


Ordering Information (Turbidity System)


Part No.



Drinking Water Turbidity System

Display Configuration (x)

1 = Integral
2 = Remote with 20 ft cable

AV38 Configuration (y)

A = 1 current output and 24 VDC power
B = 2 current outputs, 2 relays and
24 VDC power
C = 1 current output and 100-240 VAC power
D = 2 current outputs, 2 relays and
100-240 VAC power

Host Communications (z)

0 = None
4 = Modbus® RTU
5 = DeviceNet
6 = CANopen
7 = Ethernet

Note: Consult for additional configurations and accessories


Order Information (Turbidity DataStick)


Part No.





Turbidity Sensor Head


Communications Adapter

Body Material (b)

1 = 316 Stainless Steel
2 = CPVC
3 = PEEK

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

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


Download Brochure

Low Range Turbidity DataStick
AV38 Datastick Local Monitor And Controller

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