pH & ORP Direct Smart Sensor for Biodiesel


The Turtle Tough Biodiesel direct smart sensor is one tough sensor. Designed specifically for solvents & volatile organic resistance sensor provides unprecedented periods of survival in applications where most of our competitors literally disintegrate.

  • Available as a TOUGH analogue or Smart digital sensor
  • Designed specifically for Solvents & Volatile Organic Resistance (Strong Acids and Dissolved Gases)
  • Acid/Fluoride, Ammonia, Chlorine and Sulphide Gas Resistant
  • 0 to 14 pH Range
  • -5°C to 105°C
  • Submersible Water proofing & Cable Sealing

Solvent extraction and recovery are generally associated with three distinct problems: Strong acids, organic solvents & dissolved gases. Organic solvents are of particular concern, as they attack the housings and connections of sensors and cause interference and damage to reference junctions. For years we have worked closely with a range of manufacturers who use solvent extraction as a core part of their process; from Nickel and Uranium processing to Pharmaceutical manufacturers, to develop a sensor that would go on to save them countless dollars in sensor costs and increase their process yields through better accuracy.

The Biodiesel direct smart sensor is the only sensor they have been able to use in their tanks, where our competitors couldn’t supply a sensor that lasted more than a couple of days. Solvent resistant bodies and sealants, combined with our triple junction reference systems allow the sensors to stay operational for more than 10 times longer than our best competitor.

The Turtle Tough Biodiesel direct smart sensor is extremely versatile for a variety of installation methods. By utilizing a double thickness 3/4" x 1" RADEL body, it is suitable for both immersion, submersion and valve retractable installation types. The RADEL body material offers excellent resistance to abrasion at an economical price.

  • 6m Cable
  • RADEL with 3/4" Front-end & 1" MNPT Back-end
  • Triple Junction
  • High Capacity Polypropylene Reference
  • Quick Connect Plugs – eliminate hard-wiring of sensors and allow for instant hot-swap
  • Direct Smart Sensor Technology
    • Direct MODBUS RTU output from sensor (Connects to wide array of platforms)
    • Reduce Overhead & Installation Costs – No need to install expensive analysers
    • No hard wiring – plug-n-play connectivity
    • Smart Sensor stores calibration data
    • Smart Calibrator use one device to calibrate and interface with ALL sensors
    • Hot-swap for quick sensor change-out

Direct Smart Sensors (DSS) with Digital MODBUS RTU Output

Turtle Tough’s range of Direct Smart Sensors (DSS) are equipped with an on-board microprocessor which is capable of processing measurement data and providing a feature rich digital MODBUS RTU output directly from the sensor. This enables the sensor to be directly interfaced with any MODBUS compatible data acquisition device, such as a PLC, RTU or data logger. Direct connectivity eliminates the need to interface with a traditional intermediary controller or analyser and provides unprecedented communication and control directly with the sensor.

Process more than a dozen parameters with Direct Smart Sensors including:

  • Measurement type
  • Calibration data
  • Raw and calibrated process values
  • Max/min temperature
  • Baud rate
  • Node
  • Serial number...

As well as useful service information such as the number of days in use. These values can be intelligently integrated into your data acquisition system to achieve a very sophisticated level of analysis and control.

Why is this different?

Smart onboard data processing presents us with a number of unique advantages that are not possible with a traditional sensor and transmitter configuration. This includes:

  • The ability to interface directly to modern PLC controllers and data acquisition systems
    • Utilise existing powerful architecture; or
    • Utilise factory supplied custom programmed PLC’s, Transmitters & Controllers
    • Access data remotely through both wired and wireless networks
turtletough dss 6080ex proof
DSS Explosion Proof Transmitter/Controller - Connect up to 8 Smart sensors
  • The ability to eliminate the cost of a mating transmitter where a local display is not necessary
    • Intelligent management of sensor calibrations and service life cycle
    • Calibrate sensors offline in the laboratory or workshop
    • Offset calibrations can be done remotely with the sensor left in service
    • Accurately monitor service intervals and calibration history
dss pc interface box sensor
  • The intelligent Handheld Field Communicator provides easy-to-use portable connectivity for calibration and configuration of all Smart Sensors
dss handheld field communicator connected to a sensor handheld field communicator
Handheld Field Communicator - For field calibration and configuration of Smart Sensors.
  • Quick connectors eliminate hard wiring and provide system-wide plug n play compatibility to ALL interfacing components including the handheld field communicator, junction boxes, extension cables, transmitters and controllers.
  • Smart digital sensors ensure reliable operation even in noisy process environments
  • Supports cable runs of up to 1000m with no degradation in signal
  • Windows PC Software directly communicates with sensors for calibration, configuration, and data logging.
quick connect plugs
Female and male Quick Connectors provide
instant connectivity to all DSS compatible
devices and eliminate the need for hard wiring.
dss report detail
Calibration Report using windows PC Software
dss interface box
DSS Interface Box To connect to your PC

About the technology

Turtle Tough’s DSS technology is supported by comprehensive documentation. Our software allows users to access all user adjustable parameters, analytic data, calibration functions as well as sending fully compensated high-resolution process values. Sensor analytics enable operators to schedule proactive maintenance and provide accurate and timely information on the process. The Modbus RTU protocol has been specifically chosen as it is an open standard that creates an open and collaborative environment for process automation and liquid analysis. This provides a level of connectivity and integration that is not possible with closed architectures and proprietary platforms that force vendor lock-in.