HiQDT Smart Digital Modbus Measurement System

SNOOPER CONFIGURATION NOTES:

• Snooper configuration for smart HiQDT MODBUS RTU sensor slaves on bottom illustration can be correlated to 4-20mA loop-powered meter for analog control systems on top illustration where both devices serve as local display between the control system and the sensor and/or transmitter.
• Up to 8 each HiQDT MODBUS RTU sensors can be powered and polled in snooper configuration when installed in non-hazardous locations (max 1 each supported for hazardous EX type areas).
• HiQDT-EX-LEDTX & HiQDT-NEMA4X-LEDTX snooper configurations provide isolated power & isolated RS-485 serial port to fulfill installation requirements of HiQDT MODBSU RTU sensors.
• Any registers that are to be displayed and/or used as the basis of any analog output or contact relays must be polled by customer programmed MODBUS RTU master (PLC, SCADA,…etc).

DOWNLOAD LED EX, NEMA4X & PANEL CONTROLLER SUMMARY & COMPARISON CHART

Tools for Setup, Configuration & Calibration with minimal work on customer PLC

• Free of charge Windows software is provided with all HiQDT sensors to accomplish all user adjustable setup and configuration steps as well as calibration tasks.
  • ONLY the HiQDT Windows software can change the baud rate of HiQDT sensors
  • Create calibration certificate reports for archival quality assurance compliance and advanced analytics to optimize process maintenance as well as the sensor life cycle
• Setup, configuration and calibration tasks can also be accomplished by a small compact lightweight battery-powered handheld communicator (HHC) for HiQDT sensors if preferred.
  • HHC for use with pH & ORP sensors
  • HHC for use with Conductivity (EC) sensors
  • HHC for use with Dissolved Oxygen (D.O.) sensors
  • HHC for use with Ion Selective (ISE) sensors
• TThis handheld communicator can also serve as a portable measurement system allowing industrial HiQDT sensors to be used both for spot analysis and troubleshooting in the field.
• If desired the HiQDT Windows software and/or handheld communicator can perform all complex tasks meaning that only scaling of the process pH, ORP, Conductivity, Dissolved Oxygen (D.O) and Ion Selective (ISE) values & temperature readings is needed to commission HiQDT sensors in the field.
  • Field commissioning can be done in minutes for those familiar with general setup of RS485 MODBUS RTU slaves using HiQDT smart digital modbus sensor implementation guide.

Zero Configuration Working Right out of the Box

• Since the HiQDT MODBUS sensors are smart digital type they can be pre-calibrated to be ready to deploy right out of the box by simply plugging sensors in the mating keyed waterproof connector. Only requirement is to supply either AC or DC power as defined by the package type ordered.
• The HiQDT sensors can be hot-swapped between different controllers with the only caveat that the MODBUS node address is valid for location to where it is connected (see installation guide).
• Factory supplied packages can be supplied pre-configured sensors & controllers such that upon powering equipment and connecting sensors it is immediately measuring and datalogging values.
  • This means TRUE ZERO CONFIGURATION working right out of the box. Ideal where very fast commissioning is required or when many installation points are started in a narrow time window..
    
    

Core Features for Smart Digital HiQDT Sensors

• Store their configuration settings and all calibration values in the sensor allowing for complete portability in terms of where maintenance tasks such as cleaning and recalibration are performed.
• Engineered process pH & ORP values sent are always calibrated and temperature compensated. Calibrated temperature and absolute mV values are also sent with (04) read_input_registers call.
• In principle up to 247 HiQDT sensors can be installed onto a single RS-485 MODBUS RTU master, although it is recommended to use a repeater after 32 nodes (inquire to factory for assistance).
• High speed MODBUS serial communications ensure low-noise operation in industrial process environments at distances up to 1,000 meters (3,280 feet). Support for long cable runs allows for installation of the mating controller to the HiQDT sensors at any convenient location at the site.
• All smart digital HiQDT sensors standard with waterproof NEMA 6P rated quick disconnect snap connectors for convenient field commissioning and maintenance. Waterproof snap connectors allow for seamless simple hot-swap plug and play functionality with mating PLC controllers.
• Portable battery powered handheld communicator for portable spot measurements using same industrial HiQDT industrial sensors used for continuous inline field measurements. This is ideal for spot analysis as well as troubleshooting field readings at any location of interest.
• Very fast booting HiQDT sensors have readings ready to view or record in as little as 2 seconds.
  • Ideal for intermittent operation from dataloggers or else spot portable field measurements.

Capabilities of Smart Digital HiQDT MODBUS pH, ORP, D.O. & Conductivity (EC) Sensors

• Supported pH Range from -2.00 to +16.00 (Max Resolution 0.001pH unit)
  • Actual pH range for particular sensor model is defined & limited by specifications
• Supported Standard Range ORP Mode from -1,000 to +1,000 mV in (Max Resolution 0.1mV)
  • Raw Absolute mV Resolution 0.05mV for pH or Standard Range ORP Modes
• Supported Wide Range ORP Mode from -2,000 to +2,000 mV in (Max Resolution 0.2mV)
  • Raw Absolute mV Resolution 0.10mV for Wide Range Range ORP Mode
• Supported D.O. Range from 0.00 to 150.00 ppm (0.0 to 1,500.0 %) with 0.01mV Resolution
• Supported Conductivity Range and resolution varies depending upon cell constant and range mode.
• Inline pH/ORP Installations up to 150 ℃ Maximum Temperature & Maximum Pressure 200 psig
  • Fully Submersible Installations up to 125 ℃ max (if sensor is rated to at least 135 ℃)
  • Inline max temperature for particular sensor model is defined & limited by specifications
• Minimum temperature -35 ℃ for Extreme Dehydration Resistant Series (Inline or Submersible)
  
• For Inline Conductivity Sensors Temperatures up to 205 ℃ and Pressure up 500 psig supported
  

Calibrations Features for Smart Digital HiQDT Sensors

The smart digital HiQDT pH & ORP sensors integrally store these calibrations which are used to compute and send calibrated and temperature compensation pH, ORP and temperature values. The time in service since each calibration type was last performed is stored for analytic purposes.

• Temperature Offset for HiQDT pH, ORP & Dissolved Oxygen (D.O.) sensors
• mV Offset for HiQDT ORP sensors & Asymmetric Potential (Offset) for HiQDT pH* & ISE sensors
• Acid Slope for HiQDT pH* sensors (used when media measured is less than pH7)
• Alkaline Slope for HiQDT pH* sensors (used when media measured is more than pH7)
• Slope for HiQDT Ion Selective (ISE) sensors is typially preprogrammed at factory for characteristic response for planned process environment and condition but can be changed in the field if necessary.
• Slope for D.O. sensors (no offset required for galvanic Dissolved Oxygen Sensors with true zero)
• Zero Dry in Air offset and Wet Slope Calibration for Conductivity (EC) Sensors
* Factory HiQDT Controller supports autobuffer pH calibration: 7.00 & 6.86 pH buffers for asymmetric potential (A.P.), 4.00 & 1.68 pH buffer for acid slope & 9.18, 10.00 & 12.45 pH buffer for alkaline slope

Core Setup, Configuration & Analytic Features for Smart Digital HiQDT Sensors

• The smart digital HiQDT pH, ORP & D.O. sensors store the following core and analytic information:
• Type – pH, Standard & Wide Range ORP, Dissolved Oxygen (D.O.), Ion Selective (ISE) or Conductivity
  • Dual pH/ORP all-in-one sensors appear as separate pH & ORP for setup & calibration
• Baudrate – 9600 or 19,200 kbps
  • Note: All sensors on MODBUS network must have same baudrate
• Node – User adjustable from 1 to 247 – Max HiQDT sensors on one network, use repeater after each 32 HiQDT sensors; See HiQDT installation guide & controller manual for best practice setup
• Temperature Compensation Coefficient – Default is classical 0.198mV per ℃ Nernstian value
  • Adjustable temperature compensation from 0.000 to 0.999 mV for special applications
• Smoothing dampener for process readings (time averaging) – From 1 to 30 seconds
• Delay from boot to send values (important setting for intermittent battery powered operation)
• Sensor Item Number (Discrete Coding for Exact Configuration & Options)
• Serial Serial Number (for Complete Traceability back to Factory)
• Max (up to 210℃) & Min (down to -40℃) Temperature in Service (when sensor is energized)
• Total Days in Use – stored in units of hours with a max value of 65,535 equating to 7.5 years
• Software Revision of Board - for support purposes and troubleshooting
  • Software Revision of Board - for support purposes and troubleshooting
    

Installation Configuration Available for Smart Digital HiQDT Sensors

• The entire line of built-to-order IOTRON^TM and ZEUS^TM pH and ORP sensors with all possible configurations and options available smart digital HiQDT style. Support for all inline & immersion and fully submersible installations, twist lock quick disconnect bayonet style installations as well as sanitary and HOT-TAP valve retractable installation schemes.
• Smart digital HiQDT sensors available in single parameter pH only and ORP only configurations or dual pH/ORP all-in-one configurations where both pH & ORP are measured in one sensor.
  • Dual pH/ORP smart digital HiQDT sensors require suitable waterproofing sealing option for space needed for 2nd sensor board to measure two parameters in a single sensor.
    
• AST-DO-UNIVERSAL HiQDT rugged industrial dissolved oxygen (D.O.) sensors available for inline, immersion, twist lock quik disconnect, sanitary & HOT-TAP valve retractable installations.
• Smart Digital Conductivity (EC) Sensors available for inline, immersion, submersible sanitary and HOT-TAP valve retratable type installations. For standard and high range mode sensors calibrated and temperature compensated readings of units can be μS/cm or mS/cm or else salinity (PSU) or Total Dissolved Solid (TDS) ppm. For ultralow ranges MegaOhm (MΩ) resistivity units are also available.

Universal 3TX-RTU-D Transmitters for Smart Digital HiQDT MODBUS RTU Sensors

• Provides local display & isolated, scalable & reversible 0-20mA or 4-20mA output
• Simultaneously functions as MODBUS RTU master to smart HiQDT MODBUS RTU sensor and MODBUS RTU slave to upstream PLC. ALL sensor registers are accessible from MODUS RTU slave port.
  • Security parameter P24 allows for field adjustable access control levels on MODBUS RTU slave port anywhere from read only for sensor and transmitter, to write only for transmitter or else allowing for full read & write access to both sensor and transmitter.
• Display current mA output based upon current sensor reading & scaling setup on transmitter.
• Display current mA output based upon current sensor reading & scaling setup on transmitter.
• Universal software automatically detects measurement type of mating sensor & loads all necessary associated parameters without any additional user action required once node address of sensor is entered.
• Customized user-defined default settings can be programmed each 3TX-RTU-D unit without charge
• Download the 3TX-RTU-D documentation for further details on the specific features and usage.

Compatibility of Smart HiQDT MODBUS RTU sensors & 3TX Transmitters with MODBUS

• HiQDT pH, ORP, Dissolved Oxygen (D.O.), Ion Selective (ISE) and Conductivity (EC) sensors can be used on the same RS-485 MODBUS network as the 3TX transmitters with the RS-485 MODBUS RTU output option. In this way any existing analog pH, ORP, conductivity, dissolved oxygen (DO) and ion selective (ISE) sensors interfaced with 3TX-pH, 3TX-CON, 3TX-DO or 3TX-ISE transmitter (respectively) can share the MODBUS network for sending the process values together with smart HiQDT MODBUS RTU sensors.
• Only the usual caveats apply such as all nodes having the same baudrate and that a unique node address must exist for each device. Whereas the badurate and node address can be changed from the display on the 3TX transmitter the baudrate and node for the HiQDT sensors can only be changed with the provided free of charge Windows HiQDT setup and calibration software.
• The intelligent digital 3TX-HiQ-pH transmittersinterfaced to the smart digital HiQ pH & ORP sensors can share the same MODBUS network as the smart digital HiQDT MODBUS RTU sensors as well as the 3TX transmitter with MODBUS output option.
• Free Windows Datalogging & Graphing software logs process pH/ORP/DO/ISE/EC values, temp. & absolute raw input from any HiQDT pH/ORP/DO/ISE/EC sensors on same network as 3TX transmitters. For dissolved oxygen sensors the ppm and percent (%) saturation & temperature values are logged. For conductivity the uS/cm values are logged along with the PSU or TDS if desired. For ultralow range measurements the resistivity value in MegaOhm units can also be logged if desired.
  • Windows Datalogging & Graphing Software is an excellent commissioning tool to test all devices on MODBUS network are functioning correctly before connecting to the main PLC.

DOWNLOAD COMPARISON CHART OF SMART DIGITAL HiQDT TOUCHSCREEN CONTROLLER and 3TX-HiQ-pH INTELLIGENT DIGITAL TRANSMITTERS