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Summary of Contents for Pyxis ST-765SS Series
- Page 2 ST-765SS Series pH + Free Chlorine / Chlorine Dioxide Multiparameter Sensor Operation Manual August 15, 2022 Rev. 1.8 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 Series Sensors………...………………………..…….……….3 Features of the Pyxis ST-765SS Series…………………….………………………….………..3 Specifications……………………………….…………………………….…………..……….………….4 Unpacking the Pyxis ST-765SS……………………………………..………..………….…………4 Standard Accessories……………….………………………………….……..….……………………5 Optional Accessories…………….………………………………………..………………….……….5 2 Installation………………………………………………………..……………….…………………..……….5 3 Quick 4-20mA Start Up……………..……………………………………….…………..………………..9 4 Calibration and Diagnosis……………………………………..………….…..………………………….9 Calibration and Diagnosis by uPyxis Mobile App…………….………………..………..9 4.1.1... - 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 Series Sensors
The flat front-end design of the ST-765SS series makes this platform less prone to contamination or fouling and is ST-765SS Series easy to clean. The ST-765SS series sensor body is composed of 304 Free Chlorine + pH Sensor stainless steel and is well suited for aggressive environments. -
Page 6: Specifications
1.2 Specifications Specifications are subject to change without notice. Contact Pyxis (service@pyxis-lab.com) for an updated specification list. Item ST-765SS-FCL ST-765SS-CLO 53607 53608 Sensor Body Material 304SS Oxidizer Range 0.00-5.00 ppm FCl2 / TCL2 / CLO2 (auto-range) Oxidizer Precision ± 0.01mg/L or 1% of the value w/pH compensation up to 9.0+... -
Page 7: Standard Accessories
One MA-1.5CR – (Flying Lead Cable Female/Flying Lead 8-Pin Adapter – 1.5ft) • The full instrument manual is available for download at • www.pyxis-lab.com/support.html 1.5 Optional Accessories The following optional accessories can be purchased via your Regional Sales contact or Pyxis Customer Service at order@pyxis-lab.com. Accessory Name Item number MA-CR... - Page 8 FR-50 Flow Reservoir Diagram as shown in Figure 2. Figure 2. FR-50 Flow Reservoir Diagram for ST-765SS Series Sensors FR-50 Flow Reservoir Installation Structure as shown in Figure 2A. Figure 3 Flow Cell diagram of ST-765SS Series (mm) SP-765SS Series Sensor Manual service@pyxis-lab.com...
- Page 9 Pyxis inline sensors with fully integrated calibration, scaling and measurement protocol. When any Pyxis Lab sensor is connected to the UC-50 in RS-485 Modbus, the UC-50 automatically recognizes the sensor and configuration for immediate data display, data logging and communication. The user may also configure and calibrate the output signal and powered relay through the UC-50 controller's screen.
- Page 10 F (-20 – 70 Storage Temperature Humidity 5 – 95% No Condensation Protection IP-65 BlueTooth BlueTooth 5.0 - Capable of Reading Pyxis Bluetooth Sensors Regulation CE, RoHS Dimensions of UC-50 (mm/in) SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 11: Quick 4-20Ma Start Up
4 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 12 Tap the discovered ST-765SS sensor to connect to the sensor. The uPyxis app can identify the sensor type if multiple Pyxis sensors are discovered in the scan. As shown in Figure 7, in the calibration page of uPyxis after connected to the sensor via the MA-CR Bluetooth adapter the current free chlorine or chlorine dioxide, pH and temperature values will be displayed.
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Page 13: Free Chlorine/ Chlorine Dioxide Calibration
4.1.1.1 Single Point Calibration Procedure The ST-765SS Series must be slope calibrated in the FR-50 flow reservoir provided with the sensor and must have CONSISTENT flow within the specified range of 200 to 4,000mL per minute. Determine the Free Chlorine or Chlorine Dioxide concentration in ppm (mg/L) of the sample water taken from the FR-50 output sample by using the DPD method on the handheld Pyxis SP-200 Oxi-Pocket (P/N 50802) or alternative compliant colorimeter. -
Page 14: Two-Point Calibration Procedure
Slope-point Calibration: Insert the ST-765SS Series sensor back into the FR-50 flow reservoir and reestablish sample flow. The ST-765SS Series must be slope calibrated in the FR-50 flow reservoir provided with the sensor and must have CONSISTENT flow within the specified range of 200 to 400mL per minute. Determine... -
Page 15: Ph Calibration
8.00-13.00 pH. Figure 10 Enter pH concentration to start pH High Figure 9 Enter pH conentration to start pH low calibration calibration SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 16: 4-20Ma Span
4.1.3 4-20mA Span The default oxidizer 4-20mA span for ST-765SS Series probes is as follows. ST-765SS-FCL 4mA=0ppm Free Chlorine / 20mA = 5ppm Free Chlorine ST-765SS-CLO 4mA=0ppm Chlorine Dioxide / 20mA = 5ppm Chlorine Dioxide Tap 4-20mA SPAN to change the free chlorine or chlorine dioxide value corresponding to the 20mA output to a lower value as seen in Figure 9. -
Page 17: Calibration And Diagnosis By Upyxis Desktop App
MA-CR Bluetooth Adapter MA-NEB USB Adapter Figure 13. Connect the ST-765SS Series sensor wirelessly to a computer via MA-CR Bluetooth and MA-NEB USB adapters Establish connection between uPyxis APP and the ST-765SS through the following steps: Open the desktop uPyxis APP. - Page 18 Figure 14. Connection Options Figure 15. Select a Comm port SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
- Page 19 Figure 16. Connected to a ST-765SS sensor and information page Figure 17. Calibration Page SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 20: Free Chlorine/ Chlorine Dioxide Calibration
4.2.1.1 Single Point Calibration Procedure The ST-765SS Series must be slope calibrated in the FR-50 flow reservoir provided with the sensor and must have CONSISTENT flow within the specified range of 200 to 400mL per minute. Determine the Free Chlorine... -
Page 21: Ph Calibration
(ie. 10.0) calibration standard solution and tap pH HIGH CALIBRATION in the uPyxis app. 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. SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397... - Page 22 Figure 19 pH Low Calibration Figure 20 pH 7 Calibration SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 23: 4-20Ma Span
Figure 21 pH High Calibration 4.2.3 4-20mA Span The default oxidizer 4-20mA span for ST-765SS Series probes is as follows. ST-765SS-FCL 4mA=0ppm Free Chlorine / 20mA = 5ppm Free Chlorine ST-765SS-CLO 4mA=0ppm Chlorine Dioxide / 20mA = 5ppm Chlorine Dioxide Tap 4-20mA SPAN to change the free chlorine or chlorine dioxide value corresponding to the 20mA output to a lower value as seen in Figure 20. -
Page 24: Diagnosis
This data may be exported from the uPyxis APP via email to service@pyxis-lab.com technical support. SP-765SS Series Sensor Manual service@pyxis-lab.com... -
Page 25: Calibration On The Controller
FR-50 flow reservoir outlet sample line. 5. Modbus RTU The ST-765SS Series sensors are configured as a Modbus slave device. In addition to the ppm free chlorine or chlorine dioxide values, many operational parameters, including warning and error messages, are available via a Modbus RTU connection. -
Page 26: Sensor Cleaning And Maintenance
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 Solution can be purchased at our online Estore/Catalog at https://pyxis-lab.com/product/probe-... -
Page 27: Contact Us
25-2 25-1 25-3 25-4 25-5 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 SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397...
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