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Summary of Contents for Pyxis ST-765SS Series
- Page 2 ST-765SS-Br Bromine + pH Multiparameter Sensor User Manual January 30, 2023 Rev. 1.3 Pyxis Lab, Inc. 1729 Majestic Dr. Suite 5 Lafayette, CO 80026 USA www.pyxis-lab.com © 2017 Pyxis Lab, Inc. Pyxis Lab Proprietary and Confidential...
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Page 3: Table Of Contents
Table of Contents 1. Introducing the Pyxis ST-765SS-Br Sensor ..................4 1.1 Specifications ..........................5 1.2 Unpacking the ST-765SS-Br ......................5 1.3 Standard Accessories ........................6 1.4 Optional Accessories ........................6 2. Dimension & Installation ........................ 7 3. Quick 4-20mA Start Up ........................8 4. - Page 4 Pyxis. The Pyxis warranty term for the EH-765 (electrode reference head) installed on the ST-765SS Series sensor body is six (6) months from original shipment from Pyxis. In no event shall the standard limited warranty coverage extend beyond this timeline from original shipment date.
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Page 5: Introducing The Pyxis St-765Ss-Br Sensor
USEPA – 334.0 and ISO-7393 guidelines. The ST-765SS-Br sensor offers a replaceable, front loading reference electrode assembly that has been independently developed by Pyxis Lab eliminating the shortcomings associated with membranes and gel replacement while offering reduced polarization time on startup with an electrode life span potential of up to 2-years. -
Page 6: Specifications
Remove the instrument and accessories from the shipping container and inspect each item for any damage that may have occurred during shipping. Verify that all items listed on the packing slip are included. If any items are missing or damaged, please contact Pyxis Customer Service at service@pyxis-lab.com ST-765SS-Br Sensor Manual service@pyxis-lab.com... -
Page 7: Standard Accessories
The following optional accessories can be purchased via order@pyxis-lab.com or your preferred Pyxis Lab distributor. Accessory Name Item number EH-765 53601 (Replacement Reference Electrode Head for ST-765SS Series) FR-300-PLUS 50700-A44 Replacement FR-300+ Auto-Brushing Flow Assembly FRP-300-1 50700-A49 Replacement Brush Head for FR-300-PLUS MA-AC-7US... -
Page 8: Dimension & Installation
2. Dimension See dimension diagrams below for ST-765SS Series and FR-300-PLUS. ST-765SS Series Dimensions (mm) Figure 1. - Dimension of the ST-765SS Series (mm) FR-300-PLUS Dimensions (mm) Figure 2. – FR-300-PLUS (mm) ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 9: Quick 4-20Ma Start Up
The FR-300-PLUS is also designed to be utilized with a wide variety of alternative Pyxis inline sensors for a broad range of measurement. These additional sensors are outline in this document. - Page 10 FR-300-01 Replacement Brushing Assembly Dimensions (mm) & Image FR-300-01 Replacement Brushing Assembly Replacement Procedure ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
- Page 11 Mounting: The FR-300-PLUS must be securely mounted to a back panel through the three (3) pre-drilled screw mounting holes in the reservoir body, with the Pyxis sensor aligned in a horizontal format as seen in the figure below. *NOTE* Sensor may be aligned to the left or right as desired.
- Page 12 The IK-765SS series offers highly accurate, real-time measurement, display and data-logging of Bromine, pH and Temperature utilizing proprietary Pyxis Lab smart sensor technology, coupled with a Pyxis UC-50 micro display and data logging terminal. The IK-765-B also incorporates the uniquely designed FR-300- PLUS automated mechanical brush flow assembly which is directly controlled via the UC-50 display to maintain optimum sensor electrode cleanliness in the most challenging of system water.
- Page 13 4-20mA output signal, they are NOT LOOP POWERED. 24VDC+ power supply and 4- 20mA+ signal are independent of each other in all Pyxis Lab sensors. If the 24V power ground and the 4-20 mA-return in the controller are internally connected (non- isolated 4-20mA input), it is unnecessary to connect the 4-20 mA- (Gray wire) to the 4-20 mA negative terminal in the controller.
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Page 14: Calibration And Diagnosis
5. Calibration and Diagnosis The ST-765SS Series sensors are rigorously calibrated before leaving the factory. As such, users do not need to calibrate the sensor for a period of three months or up to one year if the sensor is maintained in clean condition. -
Page 15: Bromine Calibration
Figure 6 - Calibration Page 4.1.1 Bromine Calibration The oxidizer measurement module of ST-765SS Series is rigorously calibrated before leaving the factory. If calibration is required, users can perform single-point or two-point calibration as required. Calibration for Zero and Slope Calibration using a known standard and actively flowing sample that has been tested and measured by DPD wet chemistry method is recommended. - Page 16 4.1.1.1 Single Point Calibration Procedure The ST-765SS Series must be slope calibrated in the FR-300-PLUS flow reservoir provided with the sensor and must have CONSISTENT flow within the specified range of 200 to 800mL per minute. Determine the Bromine concentration in ppm of the sample water taken from the FR-300-PLUS output sample by using the DPD method on a portable or laboratory colorimeter (i.e..
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Page 17: Ph Calibration
Measure for 1 minute and wait for the measurement result to stabilize before performing calibration, the high pH calibration standard value range acceptable for this step is 8.00-13.00 pH. Figure 8 Figure 9 Enter Low-pH Concentration for Calibration Enter High-pH Concentration for Calibration ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 18: 4-20Ma Span
(tap water or deionized water), in a pH standard solution, and in the sample that the sensor is intended for. This data may be exported from the uPyxis APP via email to service@pyxis-lab.com for technical support. ST-765SS-Br Sensor Manual service@pyxis-lab.com... -
Page 19: Calibration And Diagnosis By Upyxis Desktop App
Calibration and Diagnosis by uPyxis Desktop App 1) Download and install uPyxis Desktop APP from https://upyxis.pyxis-lab.com.cn/release/pc/uPyxis.Setup-latest.zip 2) Connect a USB Type-C cable to the port at the bottom of the MA-CR and to the USB port of the laptop or computer. - Page 20 Alternatively, you may use the Windows Device Manager to identify the Comm Port that the Pyxis USB adapter is using. After the connection is established, the ST-765SS sensor series number and Bromine reading will be displayed on the left of the information page Figure 15.
- Page 21 Figure 14 - Select a Comm port Figure 15 - Connected to ST-765SS-Br sensor and information page Figure 16 - Calibration Page ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 22: Bromine Calibration
Determine the Bromine concentration in ppm of the sample water taken from the FR-300-PLUS output sample by using the DPD method on a portable or laboratory colorimeter (i.e.. Pyxis SP-200 / SP-800 / SP-910 or similar). Launch the uPyxis app and connect to the ST-765SS Series sensor. Tap SLOPE CALIBRATION. Enter the bromine concentration determined by the DPD method in the dialog window as shown in Figure 17. -
Page 23: Ph Calibration
Measure for 1 minute and wait for the measurement result to stabilize before performing calibration, the high pH calibration standard value range acceptable for this step is 8.00-13.00 pH. Figure 18 - pH Low Calibration Figure 19 - pH 7 Calibration ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 24: 4-20Ma Span
Figure 21. *NOTE* The 4-20mA Span feature allows users to REDUCE the upper 20mA output scale only. You cannot INCREASE the upper limit of the sensor beyond the range of the sensor. Figure 21 Set 4-20mA Span ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 25: Diagnosis
Figure 22 - Diagnostic Interface 4.3 Calibration on the Controller It is recommended that the ST-765SS Series calibration be carried out using the uPyxis app as demonstrated in the sections above. Alternatively, a single point calibration can be carried on the controller by adjusting the mA-to-ppm ratio (Bromine). -
Page 26: Sensor Cleaning And Maintenance
Soak the lower half of the sensor in 100 mL inline sensor cleaning solution for 10-15 minutes. Gently rub the sensor electrode head with the provided Q-tips. If the surface is not entirely clean, continue to soak the sensor for an additional time until clean. Rinse the sensor with distilled water. Pyxis Lab Inline Sensor Cleaning... -
Page 27: Replacing Ph And Oxidizer Electrode Head
Replacing pH and Oxidizer Electrode Head The pH/oxidizer electrode head of ST-765SS Series can be replaced when the original electrode head reaches its working life. The typical working life of the electrode can be as long as 2-years under normal operating conditions. -
Page 28: Contact Us
8. Contact Us Pyxis Lab, Inc 1729 Majestic Dr. Suite 5 Lafayette, CO 80026 USA www.pyxis-lab.com Phone: +1 (866) 203-8397 Email: service@pyxis-lab.com ST-765SS-Br Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
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