AV38 DataStick Local Monitor and Controller

  • Compatible Equipment Connects to any DataStick system to display sensor and temperature data, control calibration, configuration and diagnostics
  • Approved Local Monitor and Controller Equipment Meets CE requirements for heavy industiral use
  • Connect multiple datasticks over modbus
Product Options


The AV38 Local Monitor and Controller connects to any DataStick System to display sensor and temperature data, and control calibration, configuration and diagnostics. It has two 4 to 20 mA current outputs, two form C relays for alarm, control and wash, and a PID controller for use with pH and conductivity. The convenient DIN enclosure has an ingress rating of NEMA 4X.

The unit has 7 conduit knockouts for easy cabling. The high contrast, backlit display is a 2 line by 16 character LCD. The straightforward keypad consists of 4 directional arrows and MENU, ESCAPE and ENTER keys. Ambient operating temperature range is -20 to 65°C and maximum relative humidity is 95% (non-condensing).

Manufactured by: Thermo Scientific
Model: AV38 DataStick Local Monitor and Controller

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Monitor and controller for Thermo Aquasensor range


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
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
Assignable parameters
PID function when pH or conductivity
parameter selected
Loop power provided by AV38
Relays Two 1 amp Form C relays with NO and
NC contacts
Assignable parameters
Configured for alarm, control and timer
Digital Communications
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
Approvals Meets CE requirements for heavy
industrial use


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TSS are particles that are larger than 2 microns found in the water column. Anything smaller than this is called a dissolved solid.