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8

Sensor Maintenance and Precaution

When used to control product dosing, it is suggested that the automation system be configured to provide
backup to limit potential product overfeeds, for example by limiting pump size or duration, or by alarming
if the pumping rate exceeds a desired maximum limit.

The ST-730 Series sensor is designed to be easily removed, inspected, and cleaned if required. It is sug-
gested that the ST-730 Series sensor be checked for fouling and cleaned on a monthly basis. Heavily con-
taminated waters may require more frequent cleanings. Cleaner water sources with less contamination
may not require cleaning for several months.

8.1

Methods to Cleaning the ST-730 Series Sensor

Any equipment in contact with industrial cooling systems is subject to many potential foulants and contam-
inants. Our inline sensor cleaning solutions below have been shown to remove most common foulants and
contaminants. A small, soft bristle brush, Q-Tips cotton swab, or soft cloth may be used to safely clean the
sensor housing and the quartz optical sensor channel. These components and more come with a Pyxis Lab

Inline Probe Cleaning Solution Kit

(P/N: SER-01) which can be purchased at our online E-Store

https://pyxis-

lab.com/product/st-series-probe-cleaning-kit/

Figure 19.

Inline Probe Cleaning Solution Kit

To clean the ST-730 Series sensor, soak the lower half of the sensor in 100 mL inline sensor cleaning solution
for 30 minutes. Rinse the ST-730 Series sensor with distilled water and then check for the flashing blue light
inside the ST-730 Series sensor quartz tube. If the surface is not entirely clean, continue to soak the ST-730
Series sensor for an additional 30 minutes. Use the small, soft bristle brush and Q-Tips cotton swabs as
necessary to remove any remaining contaminants in the ST-730 Series sensor quartz tube.

ST-730 Series User Manual

[email protected]

| +1 (866) 203-8397

16

Содержание 50626

Страница 1: ......

Страница 2: ...Series Inline Turbidity Sensors User Manual January 22 2021 Rev 1 34 Pyxis Lab Inc 1729 Majestic Dr Suite 5 Lafayette CO 80026 USA www pyxis lab com 2017 Pyxis Lab Inc Pyxis Lab Proprietary and Confid...

Страница 3: ...ing to uPyxis Mobile App 9 5 3 Calibration Screen and Reading 10 5 4 Diagnosis Screen 10 5 5 Device Info Screen 11 6 Setup and Calibration with uPyxis Desktop App 11 6 1 Install uPyxis Desktop App 11...

Страница 4: ...very All service interventions are to be reviewed and authorized as correct and complete at the completion of the service by a customer representative or des ignate Pyxis warrants these services for 3...

Страница 5: ...the MA WB Bluetooth adapter and uPyxis Mobile or Desktop App 2 Specifications Table 1 ST 730 ST 730B ST 731 and ST 735 Specifications Specifications ST 730 ST 730B ST 731 ST 735 Part Number P N 53201...

Страница 6: ...50 F 7 66 C Pressure Up to 290 psi 2 0 MPa at 149 F 65 C Enclosure Rating IP66 Regulation CE With Pyxis s continuous improvement policy these specifications are subject to change without notice 3 Unpa...

Страница 7: ...ies The following optional accessories can be ordered from Pyxis Customer Service order pyxis lab com or Pyxis E Store at https pyxis lab com shop Figure 1 ST 730 Series User Manual service pyxis lab...

Страница 8: ...730 730B 731 735 sensor into the ST 001 Tee Assembly follow the steps below 1 Insert the provided O ring into the O ring groove on the tee 2 Insert the ST 730 730B 731 735 sensor into the tee 3 Tighte...

Страница 9: ...a custom tee assembly It is recommended that two 3 4 NPT to 1 4 tubing adapters are used to connect the sensor to the sampling system Sample water entering the sensor must be cooled down to below 120...

Страница 10: ...ed 24V Black 24V Power ground White 4 20mA Green 4 20mA Blue RS 485 A Yellow RS 485 B Clear Shield earth ground Internally connected to the power ground 4 4 Connecting via Bluetooth A Bluetooth adapte...

Страница 11: ...rs may result in permanent damage of the ST 730 Series sensor communication hardware Figure 6 USB connection to ST 730 Series sensor 5 Setup and Calibration with uPyxis Mobile App 5 1 Download uPyxis...

Страница 12: ...1 Open uPyxis Mobile App 2 On uPyxis Mobile App pull down to refresh the list of available Pyxis devices 3 If the connection is successful the ST 730 Series and its Serial Number SN will be displayed...

Страница 13: ...alibration Slope Calibration and 4 20mA Span Follow the screen instructions for each calibration step Figure 9 5 4 Diagnosis Screen From the Diagnosis screen you can check the diagnosis condition as w...

Страница 14: ...nload and install the Microsoft Net Framework 4 5 if not previously installed on the PC the USB driver for the USB Bluetooth adapter MA NEB the USB RS485 adapter MA 485 and the main uPyxis Desktop app...

Страница 15: ...Once connected to the device a picture of the device will appear on the top left corner of the window and the uPyxis Desktop App will default to the Information screen On the Information screen you c...

Страница 16: ...y 4 seconds Follow the screen instructions for each calibration step Figure 15 6 5 Diagnosis Screen After the device has been calibrated and installation has been completed to check diagnosis click on...

Страница 17: ...The 4 20mA output of the ST 730B sensor is scaled as Turbidity 4 mA 0 NTU 20 mA 1 000 NTU The 4 20mA output of the ST 731 sensor is scaled as Turbidity 4 mA 0 NTU 20 mA 10 NTU The 4 20mA output of th...

Страница 18: ...ktop App click 4 20mA Span found on the Cali bration Screen shown in Figure 18 Figure 17 Figure 18 7 3 Communication using Modbus RTU The ST 730 Series sensor is configured as a Modbus slave device In...

Страница 19: ...s below have been shown to remove most common foulants and contaminants A small soft bristle brush Q Tips cotton swab or soft cloth may be used to safely clean the sensor housing and the quartz optica...

Страница 20: ...adjacent to the ST 730 Series tee Carry out routine calibration verification against a qualified turbidity standard After properly cleaning the ST 730 Series sensor carry out the zero point and slope...

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