Pyxis IK-765SS-O3 User manual

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IK-765SS-O3
User Manual
Pyxis Lab Inc.
September 2022

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Related Statements
The manufacturer shall not be liable for direct, indirect, special, incidental, or consequential damages resulting from any
deficiency or omission in this manual. The manufacturer reserves the right to make changes to this manual and the products
described in it at any time without notice or liability. Revised versions can be found on the manufacturer's website.
Safety Information
Please read this manual completely before unpacking, installing, and operating this equipment. In particular, pay attention to all
dangers, warnings, and precautions, otherwise, it may cause serious personal injury to the operator or damage to the
equipment.
Use of Danger Information
Danger
Indicates a potentially or urgent dangerous situation that, if not avoided, will cause death or serious injury.
Warning
Indicates a potentially or very dangerous situation that, if not avoided, may cause serious personal injury or
death.
Warning
Indicates a potentially dangerous situation that may cause a certain degree of personal injury.
Attention
Indicates conditions that if not avoided, will cause damage to the instrument. This is information that
needs special emphasis.
Warning Label
Please read all labels and marks attached to the instrument. Failure to follow the instructions on these safety labels may
result in personal injury or damage to the instrument.
If this symbol appears in the instrument, it means refer to the operation and/or safety
information in the instruction manual.
If there is this mark on the instrument housing or insulator, it means there is a risk of electric
shock or death from electric shock.
Static electricity can damage the delicate internal electronic components, resulting in reduced
performance or eventual failure of the instrument.
Electrical equipment marked with this symbol cannot be disposed of through the European
public waste system after August 12, 2005. In order to comply with European regional and
national regulations (EU Directive 2002 / 98 / EC), European electrical equipment users must
now return abandoned or expired equipment to the manufacturer for disposal without any
cost.

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Catalog
Specifications............................................................................................................................................. - 4 -
IK-765SS-O3 Panel Features ....................................................................................................................... - 5 -
Dimension and Mounting .......................................................................................................................... - 6 -
3.1. Dimension................................................................................................................................................. - 6 -
3.2. Tube Connection....................................................................................................................................... - 6 -
3.3. Terminal Wiring ........................................................................................................................................ - 7 -
Touch Screen Operation............................................................................................................................. - 8 -
4.1. Main Screen.............................................................................................................................................. - 8 -
4.2. User Login................................................................................................................................................. - 8 -
4.3. Real-Time Monitoring............................................................................................................................... - 9 -
4.4. Explanation and use of the HOLD Feature.............................................................................................. - 10 -
4.5. Menu Bar................................................................................................................................................ - 11 -
4.6. Configurable Parameters ........................................................................................................................ - 12 -
4.6.1. Alarm Parameters Setting.............................................................................................................. - 12 -
4.6.2. Sensor Parameters ......................................................................................................................... - 13 -
4.6.3. Name Definition............................................................................................................................. - 13 -
4.6.4. Diagnostic Parameters................................................................................................................... - 14 -
4.6.5. 4-20mA Output Parameters Setting............................................................................................... - 14 -
4.6.6. Communication Setting.................................................................................................................. - 15 -
4.7. Calibration .............................................................................................................................................. - 15 -
4.7.1. pH Calibration ................................................................................................................................ - 16 -
4.7.2. O3 Calibration ................................................................................................................................ - 17 -
4.8. Alarm View ............................................................................................................................................. - 18 -
4.9. Historical Data ........................................................................................................................................ - 19 -
4.10. Historical Data Curves............................................................................................................................. - 21 -
4.11. User Management.................................................................................................................................. - 22 -
Maintenance ........................................................................................................................................... - 24 -
5.1. Correspondence Address ....................................................................................................................... - 24 -
5.2. Operation and Maintenance .................................................................................................................. - 24 -
5.3. Instrument Alarms and Descriptions ...................................................................................................... - 25 -
Replacing pH and Oxidizer Electrode Head .............................................................................................. - 26 -
Order Details ........................................................................................................................................... - 27 -

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Specifications
*NOTE* - Pyxis Lab is consistently updating technologies, as such, specifications may change without notice.
Contact [email protected] for details or www.pyxis-lab.com .
Item
IK-765SS-O3
P/N
42091
Method
Bare Gold - Electrochemical Method
O3 Range
0.01 –2.00 ppm as O3
Selectivity
Non-Selective / Cross Sensitive to other Oxidizing Species
pH Method
Electrochemical Method
pH Range
0.01 – 14.00 pH
Measurement Accuracy
±0.01 ppm or 1% Full Scale w/pH compensation to 9.0
±0.01 pH
Minimum Resolution
0.01 ppm
0.01 pH
Response Time
T90≤180s – O3
T90≤90s – pH
Compliance
EPA-180.1/334.0
Measurement Interval
Continuous Measurement
Installation
ST-007 (316L) Flow Cell w/PRV-Rotameter-Hall Effect Flow Meter Included
ST-007 Minimum Flow Rate
200 mL/minute
ST-007 Maximum Flow Rate
400 mL/minute
ST-007 Sample Inlet
1/4 - inch OD
ST-007 Sample Outlet
1/4 - inch OD
Display
4.3-inch LCD Color Industrial Capacitive Touch Screen
Storage Capacity
Built-In 4GB of Ram for Storing up to 1-Million Data/Event Records
Power Requirement
96-260VAC / 50-60 Hz; 10A Fuse; 200 W
Output
2 x 4-20 mA / RS-485 Modbus - RTU / Modbus TCP
Input
RS-485 Modbus - RTU
USB
1 x USB host, for data downloading and screen upgrade
Internet
RJ-45 socket, Modbus-TCP
Panel Operational Temperature
40 – 113oF (4-45 oC)
Storage Temperature
Instrument: -4 – 131oF (-20 – 55oC) / Sensors 32 – 122oF (0 – 50oC)
Sample Water Temperature
40 – 104oF (4-40oC)
Sample Water Pressure
7.25 – 30 psi (0.05 – 0.2Mpa)
Rating
IP-65 Panel-Display / IP-67 Sensors
Regulation
CE / RoHS
Relative Humidity
20% - 90% (No Condensation)
Altitude
<6,561 feet (<2,000 Meter)
Approximate Product Weight
~ 15 kg

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IK-765SS-O3 Panel Features
The IK-765SS-O3 is a dual-parameter inline water analyzer specifically designed as a
‘Turn-Key’ monitoring solution for clean water applications including bottled water
production, drinking water networks, secondary water supply and alternative clean-
water ozone treatment applications. The IK-765SS-O3 offers highly accurate, real-
time measurement, display and data-logging of Ozone (O3), pH and Temperature
utilizing proprietary Pyxis Lab smart sensor technology, coupled with a Pyxis UC-80
touch screen display and data logging terminal. The IK-765 series is offered in a
convenient and easy to integrate panel mounted format for rapid installation and
simple maintenance.
Features
•Pyxis Lab’s advanced research and development sensor technologies to achieve highly accurate and stable measurement of
Ozone, pH, and Temperature.
•Pyxis ST-765SS-O3 is a three-parameter composite sensor used for the measurement residual ozone, pH, and temperature in
compliance with USEPA 334.0 and ISO-7393 guidelines. The sensors advanced PCB offer built-in temperature and pH parameter
compensation (up to pH 9.0+) algorithms eliminating the need for a supplemental pH sensor and controller. Unique Bare-Gold
electrode technology for ozone measurement eliminates membranes and electrode solution replenishment commonly
associated with conventional sensors. The ST-765SS Series has a uniquely designed flat bubble pH electrode design for reduced
fouling potential. Reduce your maintenance and cost versus conventional electrochemical sensors by utilizing Pyxis replaceable
Electrode Head (EH-765) for this sensor allowing for years of reliable service. The ST-765SS Series may be calibrated in-situ after
cleaning via DPD or similar Ozone wet chemistry test measurement of active sample.
•Pyxis ST-007 Single-Sensor inline stainless steel flow cell provides an ozone demand-free environment for the safe
installation and accurate operation of the ST-765SS-O3 sensor. The inlet and outlet to the ST-007 are 316L stainless steel
with SwageLok fittings in ¼-inch OD. The IK-765SS-O3 panel is also equipped with inlet PRV, Rotameter and digital Hall Effect
inlet flow meter for precise control and recording of the recommended flow range of 200-400 mL/minute. The outlet flow should
be diverted to drain or the inlet of the pretreatment system for those desiring NSF compliance.
•Simple sensor removal and replacement. The ST-765SS Series sensors are connected to the display/data logger via RS-485
Modbus (RTU) allowing for integrated sensor calibration interface and diagnostics within the display screen.
•Convenient and simple to install Back-Panel (IK-765) for rapid and easy installation. Truly a plumb and power to go
platform with intense factory setup, testing and sensor calibration prior to shipment.
•UC-80 touch screen color display/data logger prewired to the Pyxis sensor via RS-485 with calibration interface. Display/data
logger offers 2x 4-20mA, RS-485 and TCP Modbus output with remote diagnosis and parameter adjustment. Pyxis
PowerCloudTM 4G Gateway available as an optional accessory.

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Dimension and Mounting
3.1. Dimension
Figure. 1 - IK-765SS-O3 controller size and installation size
Power Supply: 100~240V AC 50/60Hz
Water Supply: Inlet water pressure should be from 7.25 – 30 psi (0.05-0.2MPa) with an inlet feedwater line diameter of ¼-
inch PE pipe.
Drainage: Outlet pipe diameter is 1/4" OD，should both be connected to a discharge drain via gravity flow.
Wall Mount Space: The IK-765SS-DCL analyzer panel size is roughly 400H x 350W x153D (mm) in dimension. Please
accommodate sufficient space for mounting.
Wall Mount Weight: Approximately 15kg. Please use appropriate mounting hardware.
3.2. Tube Connection
Inlet Water: Connect the ¼-inch inlet water tubing to the quick adapter provided.
Outlet Line: Connect ¼-inch stainless steel inlet tubing to stainless steel fittings.

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3.3. Terminal Wiring
The IK-765SS-O3 analyzer has universal AC power supply equipment allowing users simply to plug the power supply
into a 100~240V AC 50/60Hz power outlet for normal operation.
Warning
The process of electrical connection to contact the 220V single-phase power supply, should be operated by personnel with an
electrician's license. Failure to operate according to the electrical code of practice may result in electric shock injury or even death.
Figure. 2 - Terminal Wiring Diagram

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Touch Screen Operation
4.1. Main Screen
After the system is powered on an initial screen allows the user to log into the system.
Figure. 3 - Main Screen
4.2. User Login
After powering on the system, log in with the username and password to be able to change system settings. Click the
"User Login" button, select the user "pyxis-User", enter the password: "888888" in the user password field. A new
user can be added via "User Management" in interface of the menu.
Figure. 4 - User Login Screen
If you do not need a password, or want to change the user, you can enter the system and manage in the "User
Management" screen of the menu.

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4.3. Real-Time Monitoring
Click the "Enter System" button on the main interface to enter the real-time monitoring screen of the system. The data
detected by the Pyxis sensors will be displayed in real-time. See a functional overview of each section of this screen
highlighted below. (numbers 1-4)
Figure. 5 - Real-time monitoring screen
Section
Number
Functional Overview
1
The blue area will scroll any alarm information in real time until the alarm is cleared.
2
Real-time display of current sensor measurement value.
3
Real-time display of the current sensor's 4-20mA signal value.
4
Historical data is recorded as a live curve, with the horizontal coordinate being the
time and the vertical coordinate being the measured value.
Table 1 - Main interface functional overview
Press and hold the curve area for 2 seconds and then let go, the Y-axis curve range setting dialog box will appear. Users
may change the display value range of Y-axis for each measurement index curve. Click the outter area of the screen to
save and exit the setting screen after modifications are made.
Figure. 6 - Curve Range Setting

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4.4. Explanation and use of the HOLD Feature
Within the ADMIN USER ENTRY level, the IK-765SS-O3 has an integrated HOLD feature for all Modbus TCP output
parameters from the sensor that would be connected to an onsite DCS network. The purpose for this feature is to
allow the user to enter a signal value HOLD on the designated parameter during periods of sensor maintenance or
removal. This feature prevents network system alarms from operational shutdown during sensor maintenance or
replacement. Please refer to the Administration Instruction Guide for IK-765SS-O3 for login details to ADMIN level.
Click the "Hold OFF" button on the main interface to enter the HOLD setting interface.
Figure. 7 - Main interface
In the pop-up box, enter the parameter value and click "Confirm" to open the "Hold ON" function. The main interface
will display the entered value for 15 minutes, after which it will resume displaying the real-time value read by the
sensor.
When the "Hold ON" function is activated by the user, the sensor may be maintained, calibrated, or removed and the
Modbus TCP output will continue to retain the user entered value for a period of 15 minutes, ensuring network alarm
and process will not be interrupted due to the sudden disappearance of the ‘normal’ value. The ‘actual’ live sensor
reading along with the user entered hold value reading will both be displayed during this period.
Clicking "Cancel" will turn off this function, the main interface will immediately display the real-time value read by the
sensor, and the main interface button will be displayed as "Hold OFF".

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Figure. 8 - Hold Feature - pH Value Entry by User
Figure. 9 - Hold ON interface
4.5. Menu Bar
Click the button in the upper left corner of the screen to enter the system's menu interface, where the user can
select to enter the desired operation interface.
Figure. 10 - Menu Bar

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4.6. Configurable Parameters
Click the "Parameter" button in the menu bar. Here you can select to enter "Alarm Parameters" and "4-20mA
Output" setting interface etc.
Figure. 11 - Parameter Settings
4.6.1. Alarm Parameters Setting
Users can set the upper and lower alarm limits. Click "Alarm Parameters" to enter the alarm parameter settings. When
the measured sensor value is lower than the set lower limit (the XX lower limit alarm) or when the measured value is
higher than the set upper limit (the XX upper limit alarm), the corresponding sensor alarm will be displayed on the
real-time monitoring screen. The user can also choose to turn the alarm display on or off at the top left of the
corresponding parameter list.
Figure. 12 - Alarm Parameter Setting

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4.6.2. Sensor Parameters
Click ON in "Sensor Parameters" to activate the electrode properties. Activation ON will result in the electrode
conducting internal cleaning voltammetry protocol for a duration of 12 seconds every 5 minutes of operation. During
this time, sensor data will be suspended at previous reading value prior to activation then reinitiate after the 12 second
cleaning is complete. To stop this feature, turn activation OFF.
Figure. 13 Sensor Parameters
4.6.3. Name Definition
Click the orange dialog box to customize the sensor name.
Figure. 14 - Name Definition

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4.6.4. Diagnostic Parameters
Click “Diagnosis Parameters” on the diagnosis page. In the diagnosis page, the raw data measured by the probe is
displayed. To help troubleshoot possible issues with the probe, please save an image of this data when the probe is
placed in clean water (tap water or deionized water), in a standard, and in the sample that the probe is intended for.
Figure. 15 - Diagnostic Parameters
4.6.5. 4-20mA Output Parameters Setting
Click "4-20mA Output " to enter the 4-20mA output parameter setting interface. The 4mA and 20mA output values
should correspond to the lower and upper limits of the sensor range. *NOTE* The closer the value is set to the
measurement value the more accurate the data. It is recommended to set according to the range of the sensor.
Figure. 16 - 4-20mA Output Setting

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4.6.6. Communication Setting
Communication parameters generally do not need to be changed. If the communication station number and other
parameters need to be changed on site, they can be changed on this interface.
Figure. 17 - Modbus RTU
Figure. 18 - Modbus TCP
4.7. Calibration
Click on the "Calibration" button in the menu bar and select the sensor to be calibrated.
Figure. 19 - Sensor Calibration

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4.7.1. pH Calibration
The pH function is thoroughly calibrated at the Pyxis Lab factory. After checking with a pH standard buffer solution, if
the sensor value has shifted, then the user may choose from single-point, two-point or three-point calibration to re-
calibrate the pH portion of the ST-765SS-O3 sensor as desired.
Figure. 20 - pH Calibration
Single Point pH Calibration
Remove the ST-765SS-O3 sensor and rinse 3x with DI water. Submerge the sensor into a beaker with pH=7 buffer
solution. Click "pH7 calibration". A dialog box will pop up to confirm whether to perform this operation, click "OK" if
the calibration operation is confirmed, if the calibration is successful the dialog box will show "calibration success".
Figure. 21 - pH Calibration Success Prompt
Two Point pH Calibration
Remove the ST-765SS-O3 sensor and rinse 3x with DI water. Submerge the sensor into a beaker with pH=7 buffer
solution. Click "pH7 calibration". A dialog box will pop up to confirm whether to perform this operation, click "OK" if
the calibration operation is confirmed, if the calibration is successful the dialog box will show "calibration success".

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After pH7 is successfully calibrated, you can choose acid calibration or alkali calibration for the second calibration point.
If you choose acid calibration, clean beaker 3x with deionized water. Fill the beaker with pH=4 buffer solution. Enter
the value 4 in the calibration value dialog box, and click "Acid Calibration", then a dialog box will pop up to confirm
whether to perform this operation. Click "OK" if the calibration operation is confirmed and the dialog box will show
"Calibration Successful" if the calibration is successful. Similarly, a pH=10 buffer solution can be selected for the second
point calibration if desired.
Three Point pH Calibration
Remove the ST-765SS-O3 sensor and rinse 3x with DI water. Submerge the sensor into a beaker with pH=7 buffer
solution. Click "pH7 calibration". A dialog box will pop up to confirm whether to perform this operation, click "OK" if
the calibration operation is confirmed, if the calibration is successful the dialog box will show "calibration success".
After pH7 is successfully calibrated, you can choose acid calibration or alkali calibration for the second calibration point.
If you choose acid calibration, clean the beaker 3x with deionized water. Fill the beaker with pH=4 buffer solution.
Enter the value 4 in the calibration value dialog box, and click "Acid Calibration", then a dialog box will pop up to
confirm whether to perform this operation. Click "OK" if the calibration operation is confirmed and the dialog box will
show "Calibration Successful" if the calibration is successful.
After successful acid calibration, select pH=10 for alkali calibration. Clean the beaker 3x with deionized water. Fill the
beaker with pH=10 buffer solution. Enter the value 10 in the calibration value dialog box, and click "Alkali Calibration",
then a dialog box will pop up to confirm whether to perform this operation. Click "OK" if the calibration operation is
confirmed and the dialog box will show "Calibration Successful" if the calibration is successful. The three-point
calibration is completed.
4.7.2. O3 Calibration
The measurement module of the ST-765SS-O3 sensor is thoroughly calibrated at the Pyxis Lab factory. To calibrate, the
user can perform a single point according to the requirements of the application. (USEPA-334.0 / ISO-7393 compliant
methodology)
Calibration of the ST-765SS-O3 sensor for ozone should be done with the sensor inline exposed to active flowing
sample water. Use a portable or laboratory colorimeter (i.e. Pyxis SP-200 / SP-800 / SP-910 or similar) to test the active
(flowing) water sample in the flow tee assembly of the IK-765SS-O3 panel. Once you have tested and confirmed the
concentration value in the active (flowing) flow tee assembly, enter the test result value of the portable or laboratory
colorimeter in Calibration Screen and click "High Cal". A dialog box will pop up to confirm whether to perform this
operation. If the calibration operation is confirmed, click "OK", and if the calibration is successful, the dialog box will
show "Calibration Success".
*NOTE* Click the restore button in the calibration interface of each sensor to restore the data of pH/residual O3 sensor. If a user
error is made during calibration and other operations, you may restore the factory settings of the sensor through the restore
function.

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Figure. 22 - O3 Calibration
Figure. 23 - Awaiting execution Screen of O3 Calibration
4.8. Alarm View
Click the "Alarm View" button on the main screen to enter the alarm view screen.
Figure. 24 - Alarm View
In this screen users can browse all logged alarms. Drag the right scroll bar up and down to view the history of alarms.
Click "Previous" and "Next" to advance to the next page. Click “Query” then enter the alarm number in the pop-up
box to query that alarm.

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Figure. 25 - Alarm Data Query Screen
The Delete button in the lower left corner will delete all alarm records. After clicking delete, you must exit the screen
and reenter before the historical data within the data report is cleared.
4.9. Historical Data
Click the "Historical Data" button in the menu bar to enter the data report interface.
Figure. 26 Historical Data Screen
In the data report, the user can view the stored data of all parameters. The system records sensor readings every 4
seconds by default but this can be edited by the user if desired. Drag the scroll bar on the right to slide up or down or
click "Previous" and "Next" to view historical data records. The data record can save up to 100,000 data entries. New
data will overwrite the previously saved data after recording 100,000 data entries. The user can click the “Periodicity”
button to change the data recording time interval.

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Figure. 27 Data Storage Cycle Time Setting
Click “Delete” in the lower left corner. After entering the retention time, click the “Delete” button to clear all
historical data within the retention time range.
Figure. 28 - History Data Deletion Screen
Click the “Query “button in the lower right corner, enter the start time and end time and then click the “Query” button.
Note that the start time and end time must be filled in exactly and completely according to the system time format.
Figure. 29 - Historical Data Query and Export Screen
Insert a USB disk behind the display screen and enter the time range of the data to be exported in the query area. Click
on the “Data Export” to download the data to the USB disk. The data quantity will be shown as a positive number if
data export is successful. If the data export was not successful, please check whether the time format is correct.