Smart Digital HiQDT MODBUS RTU Platform

HiQDT Smart Digital Modbus Measurement System

HiQDT smart digital sensors have integral RS-485 MODBUS RTU communications allowing them to be connected directly with a very wide array of devices ushering a new era in continuous industrial field measurements where the brand of data acquisition & control device is decoupled from the manufacturer of the smart digital sensor giving true freedom of choice back to the customer to select their preferred vendors for each aspect of liquid analytical analysis without artificial restrictions.

The HiQDT product line is designed to allow for seamless integration with either customer supplied PLC & HMI or else available as turn-key plug and play packages from the ASTI factory ready for commissioning right out of the box. Systems are available for continuous inline measurement and control in hazardous or safe locations employing rugged LED or advanced touchscreen interfaces.

The same HiQDT smart digital RS485 MODBSU RTU sensor used for continuous measurements can also be employed for intermittent measurements when used with an ultralow power battery or solar datalogger to record measurements and then wirelessly transmit this data from remote site locations. ASTI Windows setup and calibration software for HiQDT smart RTU sensors allows for adjustment of all user accessible parameters as desired and is provided free of charge. The battery-powered handheld communicator provides a very simple method for plug and play calibration and setup of various adjustable parameters in the field or in the workshop. Since all calibration and configuration information is integral to the sensor this allows for plug and play hot-swap use between any mating device that has been properly configured without any special user action required in the field.

Introduction to Novel Smart Digital HiQDT Measurement Platform

The HiQDT smart digital product line is a novel approach on how to measure, analyze, control and datalog pH, ORP, Dissolved Oxygen (D.O.), Ion Selective & Conductivity (EC) parameters for industrial processes automation, discharge compliance & environmental monitoring in the Industrial Internet of Things (IIoT) age.

Core Structure of HiQDT RS485 MODBUS RTU Smart Digital Sensors Installed into Field Service

RS485 MODBUS RTU MASTERS:
NOTE: HiQDT sensors are RS485 MODBUS RTU slaves. Only ONE (1) RS485 MODBUS RTU master device can be connected at any one moment time. See installation guide for full commissioning details.

• Programmable Logic Controller (PLC)
  • Human Machine Interface (HMI) can be either local or else available via remote access
  • All PLC & HMI functionality shown above is included ASTI touchscreen controllers
  • PLC & HMI can be either customer supplied or ASTI provided as desired.
    • See modbus implementation guide if sensors will be interfaced to customer PLC
• Windows Software for Setup, Configuration & Calibration of HiQDT sensors
  • Search & Assign node address & baudrate (HHC can also search & assign node address)
  • Optional for configuration & calibration if these features are not implemented in HMI+PLC
  • Windows Datalogging & Graphing Software records pH, ORP, Conductivity uS/cm along with computed salinity (PSU), total dissolved solids (TDS) & resistivity (MegaOhms), Dissolved Oxygen ppm & computed percent (%) saturation, Ion Selective (ISE) ppm plus temperature values
    • Ideal for initial setup of modbus RTU network for commissioning
    • Excellent free datalogging tool for small pilot & research scale systems without a PLC already in place to minimize development costs
    • Absolute raw mV and conductivity values also recorded for diagnostic purposes
• Handheld Communicator (HHC) for use with pH/ORP Sensors or Dissolved Oxygen (D.O.) Sensors or Ion Selective (ISE) Sensors or Conductivity (EC) Sensors
  • 9V battery powered operation with simple easy to use 4 button operation with bright LED
  • Ready for plug & play use right out of the box with zero configuration required

Industrial Internet of Things (IIoT)

The core difference of the HiQDT smart digital sensors is that all user functionality is accessible via the open standard and royalty free RS-485 MODBUS RTU protocol. This is in contrast to the now antiquated sensors and transmitters that only provide a 0-20mA or 4-20mA current loop or 0-5 or 0-10 VDC voltage output contaning no diagnostic information whatsoever. The modern HiQDT smart digital sensors take advantage of the industrial internet of things (IIoT) where remote access to all information is available from the sensor in realtime allowing for advanced predictive maintenance and support including remote calibrations and troubleshooting. HiQDT smart digital sensors create an open and collaborative environment for process automation and liquid analytical monitoring enabling a level of connectivity and integration that is not possible with closed architectures such as HART, Profibus, Fieldbus and other proprietary platforms that force vendor lock-in to the client.

Detailed complete documentation is available for the HiQDT smart digital sensors to allow access to all of the user adjustable configuration parameters, analytic data & calibration functions and values as well as sending the engineered temperature compensated process pH & ORP values in very high resolution. Analytics allow for predictive analytics to schedule maintenance in a proactive manner as well as robust monitoring of the process no matter the control system that is currently employed at the given facility. This HiQDT platform gives customers the freedom to interface these sensors with any PLC of their choice so long as it can act as a RS-485 MODBUS RTU master. Support for RS-485 MODBUS RTU master mode on PLC now is very common, if not altogether standard, even for entry level PLC, many of which are also now available with cost-effective remote ethernet access options.

1MF-3EA-HiQ4FP-HiQDT-4EA-SCG-PS12 Triple Input Bridge Box with integral 12VDC power supply to energize sensors for 85 to 265 VAC line powered operation with PNCE 6331-6631-HiQDT-WPC Slurry, Sulfide & Extreme Dehydration Resistant Submersible RS-485 MODBUS RTU Smart pH Sensor with waterproofing style “C” sealing option on left and PN 6353-HiQDT-STUB Immersion Slurry Resistant “STUBBY” style back-end cable assembly shown on the right. All connectors are NEMA 6P rated waterproof with bridge box NEMA 4X rated ready for field installation. White & green leads on left are modbus network in while white & green leads on right are out to modbus network.

Significance of HiQDT Platform in the Field

The major paradigm shift of the HiQDT smart digital MODBUS sensors and the Industrial Internet of Things (IIoT) means that not only process values can be viewed remotely but ALL functionality that is possible locally standing in front of the HiQDT controller can be accomplished remotely with robust security and administration for access control. That means no more trips out in to the field to assist clients with commissioning or troubleshooting for any issue that is simply a matter of configuring software or controller options. All of these types of changes can be made remotely with the HiQDT platform building upon the power of the Industrial Internet of Things (IIoT) and the accessibility through wired and wireless networks both from a Windows PC as well as cellular connected iOS and Android smartphones and tablets. Proactive site support & maintenance with email notifications upon user configurable trigger conditions such as max or min process values & temperatures, max days in service since calibration or relay being energizied allows for.

Installation Schemes DIY to Turn-Key Plug & Play

It is not necessary to be a PLC programmer to use the HiQDT smart digital MODBUS sensors. The HiQDT product platform includes a complete set of tightly integrated mating controllers and process equipment to interface the HiQDT sensors with robust factory support to provide completely turn-key field ready plug and play packages. The packages include integral scalable analog outputs, configurable MODBUS RTU and TCP slave digital communications, programmable contact relays, datalogging and full remote access capabilities for all functionality that is possible locally. Although all functionality can be achieved programming your own PLC, the convenience of factory supplied and supported controllers for smaller projects or fast delivery situations might still be very desirable. Factory supplied HiQDT touchscreen controllers include autobuffer calibration with temperature correction for pH buffers to ensure accurate results no matter the operator at the site. Plug & play packages available for hazarduous areas requiring Class I, Division II approval as well as for even the most stringent Class I, Division I explosion-proof rated areas with severe & aggressive environments.

Windows software performs the tasks which are detailed below.
Tasks in Bold tasks can ONLY be performed by Windows software.

ACTIVE TASKS

• Perform offset and slope calibrations
  • Create Calibration Certificate
• Set dampener smoothing (time averaging)
• Set output delay from time from boot before process values are sent
  • To have fully equilibrated values sent after power output delay should be equal to or greater than the time averaging dampener
• Search for node address of connected sensor
  • Automatic detection of sensor type
• Set Node Address & Set Baud Rate
• Set Temp Comp Coefficient for pH, Conductivity & ISE Sensors
• Select type of total dissolved solids (TDS) units to be sent
  • Choices are NaCl, 442 or KCl
• Set Air Pressure and Salinity corrections (for D.O. Sensors Only)
• Download current sensor configuration to file or upload previous configuration to sensor

VIEW ONLY TASKS

• Total time in Field Use
• Time since Calibration(s) Last Performed
• Absolute Raw mV & Temp Input for pH, ORP, DO & ISE sensors
• Absolute Raw Conductivity & Temperature Input
• Min and Max Temperature in Field Use
• Sensor Item Number & Serial Number
• Year and Month of Manufacture

Windows Software for Setup, Configuration & Calibration of HiQDT sensors

Low-cost battery-powered bridge assembly to power smart digital HiQDT MODBUS RTU sensors and RS-485 to USB converter to interface with Windows software on PC or surfacet tablet touchscreen.

Alternate bridge box configurations include waterproof NEMA 4X battery powered assemblies suitable for use in the field as well as AC line powered bridge box assemblies commonly used for permanent installation for desktop Windows computers.

A special bridge box assembly also exists which uses only the 5V power from the USB port to energize the sensor. This special all USB powered bridge box assembly can simultaneously energize up to 3 each smart HiQDT MODBUS RTU sensors and utilizes a special integral isolated 5VDC to 12VDC converter.

Communicator for HiQDT pH, ORP, D.O., ISE & EC Sensors

Factory Supplied Turn-Key Ready Touchscreen Controllers for HiQDT Sensors

Factory supplied controllers for the HiQDT pH, ORP, Dissolved Oxygen (D.O.), Ion Selective & Conductivity (EC) sensors built on very well established Maple Systems PLC & HMI hardware.

HiQDT-CTRL-6CH six (6) channel controller with 7.0” color touchscreen is shown above. The three (3) and six (6) channel controllers using the 7.0 inch color touchscreen are available in configurations that are suitable for use in hazardous Class I, Division II locations while the two (2) channel controllers using the smaller 4.3 inch color touchscreen (not shown above) are only suitable for use in safe non-hazardous installation locations.

DOWNLOAD COMPARISON CHART OF HiQDT SMART DIGITAL CONTROLLER PACKAGES

Features and Options:

• Assembly Type
  • NEMA 4X rated supplied with all hardware ready for immediate wall or pipe mounting.
• Power Configurations
  • 85-265 VAC (PS1 or PS1C1D2), Non-Isolated 18 to 75 VDC (PS2), Non-Isolated 9.5 to 18 VDC (PS3) or Non-Isolated 9 to 36 VDC (PS4) power type
• Display Type
  • 4.3 Inch Touchscreen Controller for Two (2) Channel Controller
    • Manual for Two (2) Channel Controller
  • 7.0 Inch Touchscreen Controller for Six (6) Channel and Three (3) Channel Controllers
    • Manual for Six (6) Channel Controller or Manual for Three (3) Channel Controller
• Certifications
  • All HiQDT controllers have CE, CSA & UL approvals for use in non-hazarduous areas
  • 3 & 6 Channel controllers available for use in Class I, Division II hazarduous locations

• Calibrations
  • pH
    • Auto buffer pH calibration mode
      • 7.00 & 6.86 pH buffers for asymmetric potential (A.P.) offset
      • 4.00 & 1.68 pH buffers for acid slope
      • 9.18, 10.00 & 12.45 pH buffers for alkaline (base) slope
  • ORP
    • Manual offset adjustment anywhere in the range
  • Conductivity
    • Automated zero dry in air calibration
    • Separate slope (a.k.a. gain or span) for standard range mode and high range mode
      • Ultralow range mode sensors uses single unified slope (a.k.a. gain or span)
  • Dissolved Oxygen
    • Fully automated calibration for D.O. sensors dry in air (no solutions required)
  • Ion Selective
    • Manual Offset and Slope calibration to standard solutions
    • In-Situ Offset while sensor in service for agreement with offline grab sample analysis
  • Temperature
    • Manual temperature offset calibration anywhere in the range for all sensor types
• Analog Outputs
  • Up to 6 each isolated & scalable 4-20mA or 0-10VDC; software selectable for each channel
• Contact Relays
  • Up to 18 each SPST relays rated up at 2A @ 230VAC or 30VDC for use as alarms or closed loop local control
  • Two (2) each relays are assigned to process value per measurement channel
• Digital Input & Output
  • MODBUS TCP SLAVE (a.k.a. MODBUS over ethernet) for all registers on each sensor for every factory touchscreen controller to interface upstream PLC, SCADA or DCS if desired.
  • HiQDT controller is ALWAYS dedicated RS-485 MODBUS RTU master to HiQDT sensors
• Datalogging
  • Large 32GB capacity to record all process values, analytic and calibration values over time
  • Remote access to logged data over FTP on local subnet, public IP or even behind firewall
  • Logged data can be converted to Excel for further workup and analysis of all channels
  • Date stamping on data using RTC for all factory supplied touchscreen HiQDT controllers
• Special Features for Touchscreen Controllers used with 3TX-RTU-D Universal Transmitters
  • All sensor types can use default node address for any channel when using the verison of the touchscreen controller programmed for use with the universal 3TX-RTU-D transmitter.
    • Slave node address for channel is handled by 3TX-RTU-D transmitter allowing for hot-swap between any channel of same sensor type without changing sensor node.
  • The location of the universal 3TX-RTU-D transmitter does not have to reside within the NEMA 4X enclosure of the touchscreen. If preferred the universal 3TX-RTU-D transmitter can be installed remote at sensor installation points and wired back to touchscreen instead. Distances up to 1,000 meters (3,280 feet) between sensor & touchscreen are supported.
  • Compute in real time the total ISE species for selected weak acid and weak base species using 3TX-TOT-DT smart pH compensation module. Since the input for the 3TX-TOT-DT module are the universal 3TX-RTU-D transmitters with smart digital HiQDT MODBUS RTU sensors the algorithm to be used is automatically detected and selected and all input scaling is similarly automated handled. Only the scaling for the analog output needs to be user defined as desired. Available pH compensation algorithms include the following detailed below:
    • Total Fluoride which is the sum of measured fluoride (F^–) ions & computed dissolved HF gas species
    • Total Cyanide which is the sum of measured cyanide (CN^–) ions & computed dissolved HCN gas species
    • Total Ammonium which is the sum of measured ammonium (NH₄⁺) ions & computed dissolved NH3 ammonia gas species
    • pH Compensation for other weak acid and weak base species not listed above may be available upon request as a special order product. Inquire to factory for such needs (MOQ typically apply for such special orders).
  • Downloads & Configuration Details for Touchscreen Controllers with 3TX-RTU-D Universal Transmitters
    • Comparison Chart & Product Brochure
      • Before selecting any touchscreen controller please contact factory to confirm suitability.
    • Manual for 2 Channel RTU Touchscreen Configuration
      • The 2 channel configuration can accept either one (1) sensor or two (2) sensors and will have up to two outputs in total.
      • If the second output is used for temperature module or two (2) each contact relay module then only one sensor can be connected to this controller.
    • Manual for 6 Channel RTU Touchscreen Configuration
      • For total ISE measurement system using 3TX-TOT-DT pH compensation module these always use the 6 channel configuration. The total ISE measurement system uses a minimum of 3 channels in all include a measurement channel for ISE and a measurement channel for pH plus the pH compensation module. Up to two (2) more measurement channels can be added in this configuration.
      • The 6 channel configuration can accept anywhere from one (1) sensor up to six (6) sensors and will have up to six outputs in total.
      • The max six (6) outputs can be configured in any mix desired. There is ALWAYS one (1) each analog output for the measured process value. Optional outputs include the temperature module and two (2) each contact relay module. For example, if both the temperature output module and relay module are used for given channel then this uses three of the available six outputs in the controller for that given channel. Contact factory for assistance with configurations to confirm validity of planned setup.
    • Optional Modules for RTU touchscreen controllers and 3TX-RTU-D Universal Transmitters
      • Programmable Contact Module – 2 each Independent 5A Dry Contact Relays
        • Simple On/Off Control as well as Time Proportional Control (TPC) and Proportional Frequency Control (PFC) a.k.a. Variable Pulse
        • Process value that serves as basis of action for contact relays is obtained via “snooping” HiQDT MODBUS RTU sensor on network
      • Smart Digital Temperature Output Module
        • Isolated, scalable and reversible 0-20mA or 4-20mA analog current loop output linear to temperature value
        • Temperature value that serves as basis of analog output is obtained via “snooping” HiQDT MODBUS RTU sensor on network

Intelligent Monitoring & Troubleshooting of Installations without Site Visits:

• Remote Access
  • Secure Maple Systems EZAccess 2.0 software offers complete remote graphical remote access to controller with interface EXACTLY the same as if in front of touchscreen LCD including encryption, tiered administration and extensive access control features.
    • Windows PC Platforms as well as Android & iOS smartphones & tablets supported
• Email Notifications
  • Email notifications for all logged events such as when a relay is turned on or off based upon setpoints for the process values or temperature or if a channel loses communcation.
    • Proactive monitoring & support for installed sites even without using remote access

Selected Screenshots of Touchscreen Six (6) Channel Controller

Default display with all other screens accessed through the main menu. Status updates, alarms & alerts are scrolled across the top of screen.

Measurement type for each channel on universal controller assigned or modified at any time using smart digital hot-swap plug & play sensors.

For six channel controller there is one analog output for each sensor, isolated, scalable & on-screen selectable as 4-20mA or 0-10VDC.

High & Low relay process setpoints for each channel with time delay.

Main menu for main tasks & functionality of controller. Additional submenus load as needed to navigate the available features & options.

Sensor calibrations are displayed and datalogged including the time since calibration was last performed for best practice maintenance.

Analytic info for each channel shown & datalogged for details about not just process values but also the sensors used for the measurements.

Along with full secure remote access, email notifications are sent for each event.

3TX-RTU-D Universal Transmitters for Smart RTU Sensors

Download 3TX-RTU-D Transmitter Documentation

• Measurements
  • pH
  • ORP
  • Dissolved Oxygen (D.O.)
  • Ion Selective (ISE)
  • Conductivity (EC)
• Features
  • Automatic recognition of HiQDT sensors
  • Isolated, Reversible & Scalable 4-20mA
  • Security for IIoT Smart Field Installations
  • Seamless plug & play hot-swap of sensors
  • Sensor remote capabilities include:
    • Calibrate & Modify Configuration
    • View smart analytics like serial number, time in use & current calibrations
  • Transmitter remote capabilities include:
    • Scale & Configure 4-20mA output
    • Modify MODBUS master & slave nodes

• Type of connected sensor is indicated with illuminated LED in main display mode. If node of sensor is not known the automated search node feature will find it. Once the node address is found the sensor type is automatically determined.
• Additional parameters beyond main process value can be shown using the ‘Up’ and ‘Down’ keys as detailed in this documentation. Output is configured in setup LED mode.
• All major functionality from physical interface can also be achieved remotely via MODBUS RTU calls

ILLUSTRATION OF P02 MASTER & P21 SLAVE NODE ADDRESS ON 3TX-RTU-D CONFIGURATIONS WHEN INTERFACED WITH TOUCHSCREEN CONTROLLER

Example shown above is for use with touchscreen controller where channels 1, 2 & 3 are configured for pH. This scheme allows for seamless hot-swap plug and play operation without having to change the node address on the smart pH sensor no matter the channel. The 3TX-RTU-D P21 slave node address defines the channel to the touchscreen controller to which it is connected. For other sensor types the P02 and P21 node address assignments would differ but the concepts would be the exactly the same as shown above.

ILLUSTRATION OF SECURITY FEATURE OPTIONS WITH 3TX-RTU-D TRANSMITTERS

HiQDT-EX-LEDTX Explosion-Proof (EX) Controllers for Hazardous Locations for Smart Digital HiQDT MODBUS RTU pH, ORP, D.O. and EC Sensors

HiQDT-NEMA4X-LEDTX Controllers for Safe Non-Hazardous Locations for Smart Digital HiQDT MODBUS RTU pH, ORP, D.O. & Conductivity Sensors

The HiQDT-NEMA4X-LEDTX controller shown above is the simplest package in the master configuration offering hot-swap plug and play operation with precalibrated smart digital MODBUS RTU sensors for fool-proof operation. The dual channel configuration (not shown above) has 2 each of the controllers panel mounted in the same NEMA 4X enclosure ideal for redundancy or when multiple parameters need to be measured at the same installation location.

Snooper configuration has 4 each connection ports standard in the NEMA 4X enclosure packages. Inquire to factory if you are planning ot use 1/8-DIN panel mount installation scheme for snooper to ensure practice commissioning.

DEFAULT 16 MODBUS REGISTERS DISPLAYED FOR MASTER CONFIGURATION OFHIQDT-EX-LEDTX & HiQDT-NEMA4X-LEDTX CONTROLLERS WITH SMART DIGITAL HiQDT MODBUS RTU pH, ORP, D.O. & CONDUCTIVITY (EC) TYPE SENSORS

MASTER CONFIGURATION NOTES:

• Scaling for 4-20mA analog output is full measurement range of the given sensor type by default, although this can be readily modified with ScanView Windows software as desired for your paticular installation.
  • Dual Isolated Analog Output (DIAO) Expansion module for HiQDT-NEMA4X-LEDTX controller adds two (2) each fully independent programmable loop-powered 4-20mA analog outputs
• Basis for analog output(s) can be calibrated and temperature compensated process value obtained from connected smart digital MODBUS RTU pH, ORP, dissolved oxygen (D.O.) or conductivity (EC) sensor.
  • For dissolved oxygen (D.O.) sensors units can be chosen aS ppm or percent (%) saturation.
  • For the conductivity (EC) sensors 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 available.
• Four (4) each Fully Independent and Programmable 5A rated Contact Relays Suitable for Alarm, On/Off Control with Deadband as well as sophisticated control using Time Proportional Control (TPC) algorithms
• Scanview Configuration Windows software uses either local USB or RS-485 serial port for remote interface

SNOOPER CONFIGURATION OF HIQDT-EX-LEDTX & HiQDT-NEMA4X-LEDTX for Smart HiQDT MODBUS RTU pH, ORP, D.O. & Conductivity sensors

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

COMPARISON CHART OF CONTROLLER OPTIONS FOR SMART DIGITAL HiQDT MODBUS RTU pH, ORP, DISSOLVED OXYGEN (D.O.), ION SELECTIVE (ISE) & CONDUCTIVITY (EC) SENSORS

NON-HAZARDOUS SAFE LOCATIONS ONLY

Description	3TX Modular Transmitter Module	NEMA 4X LED Controller	2 Channel Touchscreen
Part Number	3TX-3MF-XH-XEA-RTU-D-PS	HiQDT-NEMA4X-LEDTX-XH-XCH-PSAC12	HiQDT-CTRL-2CH-PS1
Channels	1	1 to 3 for Master Mode, Max 8 for Snooper Mode	2
Enclosure	BUD NBF-32410	Precision Digital PDA2811	Serpac I152HL,TCBG
Approvals	CE	CSA/UL Safe Areas	CSA/UL Safe Areas
Display	Single Line 3 digit LED	Dual Line 6 digit LED	4.3 Inch Color Touchscreen
Analog Out Types	1 each 0-20mA or 4-20mA for each Channel	1 ea 4-20mA (3 ea 4-20mA for Triple Channel Configuration)	2 each 4-20mA or 0-10VDC
Analog Out Value(s)	Process Value Only	Any of 16 Polled Parameters from Connected Sensor(s)	Either Process & Temp from Ch1 or Process Only from Ch1 & Ch2
Analog Out Polarity	Selectable Non-Inverted or Inverted	Selectable Non-Inverted or Inverted	Non-Inverted Only
Analog Trim Calibration	Yes	Yes via Push-Button + LED Display or Scanview Windows Software	No
Digital Out	MODBUS RTU Slave	RS-485 MODBUS RTU (Snooper)	MODBUS TCP Slave
Relays	Optional 2 each when 3TX-REL module is added	4 each SPDT (Form C)	4 each SPST
Datalog	Yes, with Optional Free Datalogging Windows Software	Yes, with Optional Free ScanView USB Software	Yes, Data stored on integral USB Flash Drive, accessible via FTP
Remote Access	Yes, via RS-485 MODBUS RTU Slave when P24 set to “All”	Yes, over RS-485 with ScanView Software	Yes, via EZ Access 2.0 & VNC with Email Notifications

NON-HAZARDOUS SAFE LOCATIONS ONLY

Description	3 Channel Touchscreen	6 Channel Touchscreen
Part Number	HiQDT-CTRL-3CHS-PS1	HiQDT-CTRL-6CHS-PS1
Channels	3	6
Enclosure	Serpac I352HL,TCBG	Serpac I352HL,TCBG
Approvals	CSA/UL Safe Areas	CSA/UL Safe Areas
Display	7.0 Inch Color Touchscreen	7.0 Inch Color Touchscreen
Analog Out Types	6 each 4-20mA or 0-10VDC	6 each 4-20mA or 0-10VDC
Analog Out Value(s)	Both Process & Temp from Channels 1, 2 & 3	Process Only from Channels 1, 2, 3, 4, 5 & 6
Analog Out Polarity	Non-Inverted Only	Non-Inverted Only
Analog Trim Calibration	No	No
Digital Out	MODBUS TCP Slave	MODBUS TCP Slave
Relays	6 each SPST	18 each SPST
Datalog	Yes, Data stored on integral USB Flash Drive, accessible via FTP	Yes, Data stored on integral USB Flash Drive, accessible via FTP
Remote Access	Yes, via EZ Access 2.0 & VNC with Email Notifications	Yes, via EZ Access 2.0 & VNC with Email Notifications
	NOTE: Previously purchased HiQDT-CTRL-3CHS-PS1 Three (3) Channel Controller can be upgraded to HiQDT-CTRL-6CHS-PS1 Six (6) Channel Controller (Upgrade process requires shipping back to factory)

HAZARDOUS LOCATION RATED

Description	Explosion-Proof LED Controller	3 Channel Touchscreen	6 Channel Touchscreen
Part Number	HiQDT-EX-LEDTX-PSAC	HiQDT-CTRL-3CH-PS1C1D2	HiQDT-CTRL-6CH-PS1C1D2
Channels	1 for Master, Max 8 for Snooper	3	6
Enclosure	Precision Digital Aluminum EX	Serpac I352HL,TCBG	Serpac I352HL,TCBG
Approvals	FM, CSA, ATEX & IECEx	CSA/UL Hazardous Areas	CSA/UL Hazardous Areas
Locations	Class I, Div I, Groups B,C,D	Class I, Division II	Class I, Division II
Display	Dual Line 6 digit LED	7.0 Inch Color Touchscreen	7.0 Inch Color Touchscreen
Analog Out Types	1 each 4-20mA	6 each 4-20mA or 0-10VDC	6 each 4-20mA or 0-10VDC
Analog Out Value(s)	Any of 16 Polled Param from Sensor	Both Process & Temp from Channels 1, 2 & 3	Process Only from Channels 1, 2, 3, 4, 5 & 6
Analog Out Polarity	Selectable Non-Inverted or Inverted	Non-Inverted Only	Non-Inverted Only
Analog Trim Calibration	Yes, via LED or Windows Software	No	No
Digital Out	RS-485 MODBUS RTU (Snooper)	MODBUS TCP Slave	MODBUS TCP Slave
Relays	4 each SPDT (Form C)	6 each SPST	18 each SPST
Datalog	Yes, with Optional Free ScanView USB Software	Yes, Data stored on integral USB Flash Drive, accessible via FTP	Yes, Data stored on integral USB Flash Drive, accessible via FTP
Remote Access	Yes, via RS-485 with Optional Free Scanview Software	Yes, via EZ Access 2.0 & VNC with Email Notifications	Yes, via EZ Access 2.0 & VNC with Email Notifications
		NOTE: Previously purchased HiQDT-CTRL-3CH-PS1C1D2 Three (3) Channel Controller unit can be upgraded to HiQDT-CTRL-6CH-PS1C1D2 Six (6) Channel Controller (Upgrade process requires shipping back to factory)

NOTE 1: All controller assemblies are NEMA 4X or higher rated.

NOTE 2: All Packages are for 85-265 VAC line powered operation for consistency of comparison

NOTE 3: DC powered package are also available for all controller configurations.

NOTE 4: LED controllers require sensors to be calibrated with either handheld communicator (HHC) or Windows software. All other controllers can performed calibration directly with connected sensor

NOTE 5: ION SELECTIVE SENSORS ARE ONLY COMPATIBLE WITH 3TX-RTU-D and TOUCHSCREEN CONTROLLERS.

NOTE 6: All controllers ready for plug & play with smart digital sensors with integral panel connector(s) except EX controller, which also needs female snap to tinned lead (HiQ4F-Xm-TL) extension cable

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

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 quick 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