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Summary of Contents for Pyxis CR Series
- Page 2 CR Series Corrosion Rate Sensors User Manual April 15, 2021 Rev. 1.54 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 Introduction 1.1 Features ..........1.2 uPyxis APP Configuration . - Page 4 Pyxis Lab, Inc. Standard Limited Warranty Pyxis Lab warrants its products for defects in materials and workmanship. Pyxis Lab will, at its option, repair or replace instrument components that prove to be defective with new or remanufactured components (i.e., equivalent to new).
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Page 5: Introduction
Because of this, the corrosion rate measured by the Pyxis CR-200/300 should not be used alone to predict or assess the real corrosion rate of the process equipment. Nevertheless, the science of using the LPR technique to quantify the corrosion rate has been well established. -
Page 6: Features
10% ferric chloride solution at 72°F is arbitrarily defined as 100. The real time elec- trochemical current noise data are graphically displayed in the Pyxis display panel, an optional item that can be purchased separately. With the graphic trend, the noise pattern and magnitude can be easily analyzed visually. -
Page 7: Specifications
2 Specifications Table 1. CR Series Specifications CR-200 CR-300 Part Number 51006 51007 Power Supply 3.6V ER26500 battery 24VDC, 2W Bluetooth 4.1 4–20 mA & RS-485 Output (32 ft./10 Meters Line of Sight) (Dual Outputs) 6 months Data Storage (@30 minutes per sample) 10.3-inch (260.5 mm) L... -
Page 8: Unpacking Instrument
Remove the instrument and find the standard accessories from the shipping container as listed below. In- spect each item for any damage that may have occurred during shipping. Verify that all accessory items are included. If any item is missing or damaged, please contact Pyxis Lab Customer Service at service@pyxis- lab.com. -
Page 9: Optional Accessories
4 Installation 4.1 Electrode Installation The CR Series sensor is shipped without the electrodes installed. A pair of copper and mild steel electrodes are included in the package. Follow the steps below to install either pair of electrodes: 1. Remove the O-rings in the electrode package. -
Page 10: Piping
Figure 2. CR Series installation into the sample flow line The CR Series should be inserted into a pipe via a 1-inch threaded tee. The corrosion rate measured by the CR Series sensor may be affected by the position of the two-test metal electrodes in relation to the water flow. -
Page 11: Battery Installation For Cr-200
Figure 4. CR-300 dimensions in inch (mm) 4.3 Battery Installation for CR-200 The 3.6 V ER26500 battery should be used and is available from Pyxis (P/N: 50730). Figure 5. ER26500 battery (P/N: 50730) WARNING Do NOT use type C alkaline batteries for CR-200. Although type C alkaline batteries are in the same dimensions as ER26500 lithium, they are 1.5 V nominal voltage batteries. -
Page 12: Wiring For Cr-300
White General corrosion rate, 4–20mA + Pink Localized corrosion rate, 4–20mA + Gray 4–20mA - Blue RS-485 A Yellow RS-485 B Green Shield, earth ground Internally connected to the power ground CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... - Page 13 See below for wiring illustrations of the CR-300 sensor to several common controllers. Figure 10. Typical wiring for WalChem W600 Figure 11. Typical wiring for WalChem W900 (4-wire loop configuration) CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
- Page 14 Figure 12. Typical wiring for WalChem WebMaster One Figure 13. Typical wiring for Advantage Controls MegaTron SS NOTE To get a Pitting signal, a jumper wire is needed from 4–20mA Input 2- to power -24V. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
- Page 15 Figure 14. Typical wiring for Advantage Controls MegaTronXS NOTE To get a Pitting signal, a jumper wire is needed from 4–20mA Input 3- to power -24V. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 16: Connecting Via Bluetooth For Cr-300
Mobile App or a computer with the uPyxis® Desktop App. The power should be sourced from a 24 VDC power terminal of a controller. If a controller is not available, the user may also use Pyxis PowerPACK-1 or PowerPACK-4 as an alternative to both an external power supply and a Bluetooth adapter. PowerPACK from Pyxis Lab offers external power, Input/Output signal, and Bluetooth connectivity. -
Page 17: Instrument Overview
5 Instrument Overview 5.1 Test Metal Electrodes Pyxis provides 5-cm (0.736 square inch) metal electrodes, commonly used in the LPR corrosion measure- ment applications. The common names, UNS codes, and alloy factors are listed the table below. Figure 16. Test Metal Electrode Dimensions, Inch [mm] CR Series User Manual service@pyxis-lab.com... - Page 18 If an electrode with a surface area different than 5 cm (0.736 square inch) is used, the user will need to calculate the proper alloy factor according to the surface area and the default 5cm alloy factor listed above. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 19: Default Sensor Settings
3. Confirm the controller’s analog input 4–20mA scale is programmed correctly so that the corrosion rate value on the controller matches with the value marked on the calibration cap. Figure 17. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 20: Cr-200 Function Buttons And Indicator Lights
App. The blue indicator light will remain solid blue while paired. Only one device can be paired at a time. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 21: Setup And Calibration With Upyxis® Mobile App
6 Setup and Calibration with uPyxis® Mobile App The default configuration of the CR Series sensor before shipping is to measure the corrosion rate of mild steel. The alloy factor was set to be the theoretical value of iron. The sensor can be configured for other metals with appropriate alloy factors and the 4–20mA scale settings for general and localized corrosion... -
Page 22: Connecting To Upyxis® Mobile App
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 CR Series and its Serial Number (SN) will be displayed (Figure 23). 4. Press on the CR Series sensor image. -
Page 23: Reading Screen
When connected, the uPyxis® Mobile App will default to the Reading screen. From the Reading screen, you can perform a calibration by pressing on Slope Calibration. Follow the screen instructions for each calibration step. Figure 21. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 24: Setting Screen
20 mA, the pitting value for 20 mA, two smoothing factors, and a password for the device (Figure 25–26). Be sure to press Apply Settings to save any changes. Figure 22. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 25: Datalog Screen For Cr-200
The CR-200 will have an additional Datalog screen (Figure 27). From the Datalog screen, press READ INFO to read in all available datalogs from the device. You may then choose to Clear Datalog or to Export & Share as a CSV file. Figure 23. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 26: Setup And Calibration With Upyxis® Desktop App
7 Setup and Calibration with uPyxis® Desktop App The default configuration of the CR Series sensor before shipping is to measure the corrosion rate of mild steel. The alloy factor was set to be the theoretical value of iron. The sensor can be configured for other metals with appropriate alloy factors and the 4–20mA scale settings for general and localized corrosion... -
Page 27: Connecting To Upyxis® Desktop App
3. On uPyxis® Desktop App, click Device Connect via USB-Bluetooth (Figure 29). 4. If the connection is successful, the CR Series and its Serial Number (SN) will be displayed in the left pane of the uPyxis® window. NOTE After the sensor and Bluetooth is powered up, it may take up to 10 seconds for the adapter to establish the wireless signal for communication. -
Page 28: Information Screen
Modbus Address, then click Apply Settings to save. Figure 26. 7.4 Reading Screen From the Reading Screen, you can view the current corrosion and pitting data as well as the trend data. Figure 27. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 29: Setting Screen
The CR-200 will have an additional Datalog screen. From the Datalog screen, click Read Datalog Info read in all available datalogs from the device. You may then choose to Clear All Datalogs or to Export as a CSV file. Figure 29. CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 30: Outputs
The CR-300 can be configured as a Modbus slave device. In addition to the general corrosion rate MPY value and localized corrosion index value, many operational parameters, including warning and error messages, are available via a Modbus RTU connection. Contact Pyxis Lab Customer Service (service@pyxis-lab.com) for more information. -
Page 31: Regulatory Approval
11 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 CR Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
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