between the two LPR measurements. The Pyxis sensor first applies a signal process algorithm to remove
high frequency noise in the acquired electrochemical current data for a period of 3 minutes and then cal-
culates the standard deviation of the processed data set. The standard deviation calculated is scaled to
generate a localized corrosion index. In such a scaling, the index value for a 304-stainless steel electrode
immersed in a 10% ferric chloride solution at 72°F is arbitrarily defined as 100. The real time electrochem-
ical 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.
1.1
Features
The CR-301 is a standalone high temperature and high pressure rated LPR corrosion sensor that can be
powered by a 24 VDC power source such as an existing controller, PLC or DCS. The sensor is composed of
Titanium and PEEK (Polyether Ether Ketone) making it highly resilient to extreme process environments,
temperatures and pressures. The CR-301 also offers an expanded general corrosion range as high as 995
mils per year and localized corrosion index as high as 100.
When used with the provided MA-CR Pyxis Bluetooth Adapter, the CR-301 must be configured via the uP-
yxis APP for Mobile or Desktop devices. The uPyxis app is used to configure the CR-301 for the metallurgy
desired, assign a sensor identification name, obtain live sensor readings. Default measurement ranges and
alloy factors will be applied to the CR-301 via the uPyxis APP when the user selects the metallurgy desired.
Custom alloy factors and ranges of measurement may be adjusted if desired. Additional diagnostic infor-
mation is available and can be used for determining the sensor performance or the need for maintenance.
• Anti-electromagnetic interference (anti-EMI) design with Titanium sensor body
• 2x 4–20mA Outputs (General Corrosion and Localized Corrosion)
• RS-485 Modbus Output
• Integrated Cooling Fin Design for High Temperature Applications
• Bluetooth connectivity to uPyxis app when used with MA-CR Adapter
• Default 4–20mA Output scales and Alloy Factors assigned for selected metallurgy via uPyxis
• Customization of Alloy Factor and upper MPY / Index (20mA) scale as desired via uPyxis
• Ultra-low general corrosion rate detection down to 0.001 MPY
1.2
uPyxis APP Configuration
The uPyxis APP manages all Pyxis portable meter and inline sensors on mobile and desktop devices, includ-
ing Apple iPhones and Samsung Android smartphones. When connected to the Pyxis CR series corrosion
rate sensors, the uPyxis APP enables users to configure the sensor for the specific metallurgy desired as well
as name the sensor, system and data log frequency in addition to offering live corrosion rate data trend-
ing. For wireless access to CR-301, the MA-CR Bluetooth Adapter will be required. One MA-CR adapter is
provided with the purchase of each CR-301.
*
NOTE
*
The uPyxis Mobile APP is evolving rapidly and users can find the latest version at
no cost on Apple iStore or Google Play. The uPyxis Desktop APP may be downloaded at
CR-301 User Manual
| +1 (866) 203-8397
3
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