Pyxis CR Series User manual

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CR Series Corrosion Rate Sensors
User Manual
April 15, 2021
Rev. 1.54
Pyxis Lab, Inc.
1729 Majesc Dr. Suite 5
Lafayee, CO 80026 USA
www.pyxis-lab.com
© 2017 Pyxis Lab, Inc.
Pyxis Lab Proprietary and Condenal

Table of Contents
1 Introducon 2
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 uPyxis APP Conguraon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Specicaons 4
3 Unpacking Instrument 5
3.1 Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Oponal Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Installaon 6
4.1 Electrode Installaon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 Piping ................................................. 7
4.3 Baery Installaon for CR-200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.4 Wiring for CR-300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.5 Connecng via Bluetooth for CR-300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Instrument Overview 13
5.1 Test Metal Electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Default Sensor Sengs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Conrm 4–20mA Output to MPY using the Calibraon Check Caps . . . . . . . . . . . . . . . 16
5.4 CR-200 Funcon Buons and Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Setup and Calibraon with uPyxis® Mobile App 18
6.1 Download uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Connecng to uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.3 Reading Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.4 Seng Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.5 Datalog Screen for CR-200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Setup and Calibraon with uPyxis® Desktop App 23
7.1 Install uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Connecng to uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3 Informaon Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.4 Reading Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5 Seng Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.6 Datalog Screen for CR-200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8 Outputs 27
8.1 4–20 mA Output Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.2 Communicaon using Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9 Sensor Maintenance and Precauon 27
10 Regulatory Approval 28
11 Contact Us 28

Warranty Informaon
Condenality
The informaon contained in this manual may be condenal and proprietary and is the property of Pyxis
Lab, Inc. Informaon disclosed herein shall not be used to manufacture, construct, or otherwise reproduce
the goods described. Informaon disclosed herein shall not be disclosed to others or made public in any
manner without the express wrien consent of Pyxis Lab, Inc.
Standard Limited Warranty
Pyxis Lab warrants its products for defects in materials and workmanship. Pyxis Lab will, at its opon, repair
or replace instrument components that prove to be defecve with new or remanufactured components
(i.e., equivalent to new). The warranty set forth is exclusive and no other warranty, whether wrien or oral,
is expressed or implied.
Warranty Term
The Pyxis warranty term is thirteen (13) months ex-works. In no event shall the standard limited warranty
coverage extend beyond thirteen (13) months from original shipment date.
Warranty Service
Damaged or dysfunconal instruments may be returned to Pyxis for repair or replacement. In some in-
stances, replacement instruments may be available for short duraon loan or lease.
Pyxis warrants that any labor services provided shall conform to the reasonable standards of technical com-
petency and performance eecve at the me of delivery. All service intervenons are to be reviewed and
authorized as correct and complete at the compleon of the service by a customer representave, or des-
ignate. Pyxis warrants these services for 30 days aer the authorizaon and will correct any qualifying
deciency in labor provided that the labor service deciency is exactly related to the originang event. No
other remedy, other than the provision of labor services, may be applicable.
Repair components (parts and materials), but not consumables, provided during a repair, or purchased
individually, are warranted for 90 days ex-works for materials and workmanship. In no event will the in-
corporaon of a warranted repair component into an instrument extend the whole instrument’s warranty
beyond its original term.
Warranty Shipping
A Repair Authorizaon (RA) Number must be obtained from Pyxis Technical Support before any product can
be returned to the factory. Pyxis will pay freight charges to ship replacement or repaired products to the
customer. The customer shall pay freight charges for returning products to Pyxis. Any product returned to
the factory without an RA number will be returned to the customer. To receive an RMA you can generate a
request on our website at hps://pyxis-lab.com/request-tech-support/.
Pyxis Technical Support
Contact Pyxis Technical Support at [phone], [email protected], or by lling out a request for
support at hps://pyxis-lab.com/request-tech-support/.
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1 Introducon
The Pyxis CR-200/300 corrosion sensor measures the metal corrosion rate in an aqueous environment based
on the principle of linear polarizaon resistance (LPR). A small polarizaon DC voltage is applied to two test
metal electrodes and the resulng current is measured by the sensor. The polarizaon resistance value is
calculated from the measured current and the applied polarizaon voltage. The metal corrosion rate in the
unit of thousandths of inch per year (or mils per year, MPY) is then determined as:
MP Y =B/Rp (1)
where Rp is the polarizaon resistance (LPR) and B the proporonal constant.
To calculate Rp originated from the electrochemical reacon at the metal water interface, the Pyxis CR-
200/300 sensor subtracts the soluon resistance Rs due to the test soluon conducvity from the total
resistance measured between the two test electrodes. The Pyxis CR-200/300 sensor accurately measures
the test soluon conducvity using the two test electrodes and the bipolar pulse technique, which has been
successfully used in other Pyxis conducvity sensors and handheld meters.
A challenge of using the LPR method to measure corrosion rate below 0.01 MPY is to measure electric
current in the range of pico and nano-amperes. The Pyxis CR-200/300 sensor adapts a range of techniques
that are pracced in our uorometers where low pico ampere current is measured. These techniques in-
clude electromagnec interference shielding, special analog circuit designs, and digital signal processing.
The proporonal constant B has a theorecal value for a given metal type and size. The Pyxis CR-200/300
assumes B equal to 1.24 MPY∙Ω for a 5 cm2mild steel electrode, which is a typical value that has been used
in many LPR corrosion researches. This proporonal constant may be also referred as to the alloy factor of
the test metal and normalized to 1.0 for the steel electrode for convivence. It can be adjusted by the user
to account for variaons in a real applicaon environment.
To determine the corrosion situaon of real process equipment is not a simple maer. The corrosion rates
for various metal surfaces contacng aqueous uids in a process depends on many parameters, including
the corrosivity pertaining to the chemistry of the aqueous uid, physical parameters such as temperature
and the velocity of the uid, and the metallurgical composion of the process equipment itself. 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
quanfy the corrosion rate has been well established. The corrosion rate measured by the Pyxis CR-200/300
sensor can be used to understand the corrosivity trend of the aqueous uid over a period and its correlaon
to changes in the process parameters.
Measuring corrosion rate using a weight loss corrosion coupon is sll widely pracced in many industry
applicaons. LPR is an instantaneous method compared with the corrosion coupon method. It can indi-
cate a change in corrosion rate in a me scale of a few minutes. In theory, a me averaged corrosion rate
measured by the Pyxis LPR sensor should agree with that from the weight loss coupon method if both are
pracced according to the common pracces known in the industry. For monitoring mild steel corrosion
rate in an industrial cooling water system, one could also treat the LPR metal electrode itself as the weight
loss corrosion coupon and compare the corrosion rate calculated from the weight loss of the electrode to
the averaged LPR corrosion rate in order to calibrate the LPR corrosion rate by adjusng the alloy factor.
The electrochemical noise measurement has long been used to quanfy the localized corrosion or ping
corrosion rate. The Pyxis CR-200/300 sensor measures the short circuit electric current owing through the
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electrodes between the two LPR measurements. The Pyxis sensor rst applies a signal process algorithm
to remove high frequency noise in the acquired electrochemical current data for a period of 3 minutes
and then calculates the standard deviaon of the processed data set. The standard deviaon 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 soluon at 72°F is arbitrarily dened as 100. The real me elec-
trochemical current noise data are graphically displayed in the Pyxis display panel, an oponal item that can
be purchased separately. With the graphic trend, the noise paern and magnitude can be easily analyzed
visually.
1.1 Features
The CR-200 is a baery powered, portable and Bluetooth enabled LPR corrosion sensor for true wireless
connecvity. The CR-200 makes it possible to monitor corrosion at mulple test points, avoiding the com-
plicaons of running power and signal output wires from the sensor to a controller and/or display unit or
data logging unit. The CR-200 sensor can store up to 6-months of data within its PCB that can be wirelessly
transferred as a CSV le using the uPyxis APP for Mobile or Desktop devices.
The CR-300 is a standalone sensor that can be powered by a 24 VDC power source such as an exisng
controller, PLC or DCS network. The output data signals for both general and localized corrosion are oered
in both 4-20mA and RS-485 modbus using the provided 8Pin cables with quick adapters. The CR-300 will
come with one MA-CR Pyxis Bluetooth Adapter allowing the unit to be wirelessly congured and viewed
via the uPyxis APP for Mobile or Desktop devices.
1.2 uPyxis APP Conguraon
The uPyxis App is available for mobile and desktop devices and is used to congure and obtain live sensor
readings, assign the system name, sensor name, metallurgy desired and allows customized corrosion ranges
and alloy factors if desired. The uPyxis APP when connected to the CR-Series sensors oers over 20 of
the most commonly measured metallurgies with pre-loaded default general corrosion rate scale, localized
corrosion index scale and alloy factors based on common applicaon ranges and UNS code. These factors
may be edited as desired by the user within the uPyxis APP to allow for an expanded or reduced scale of
measurement as high as 995 mils per year and alloy factors ranging from 0 to 3, oering a truly customizable
sensor. When the sengs are applied in uPyxis, the sensor will be wirelessly congured to the values
selected by the user. For CR-300, the output signals via 8Pin wire will reect the new ranges assigned to
the device and should be applied to the receiving controller to ensure a direct match and value displayed.
Addional diagnosc informaon is available and can be used for determining the sensor performance and
conformance to calibraon.
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2 Specicaons
Table 1. CR Series Specicaons
CR-200 CR-300
Part Number 51006 51007
Power Supply 3.6V ER26500 baery 24VDC, 2W
Output Bluetooth 4.1
(32 ./10 Meters Line of Sight)
4–20 mA & RS-485
(Dual Outputs)
Data Storage 6 months
(@30 minutes per sample) N/A
Dimensions (L ×D)
10.3-inch (260.5 mm) L
0.9 in (23.0 mm) D Lower
1.7 in (43.0 mm) D Upper
11.1-inch (281.5 mm) L
0.9 in (23.0 mm) D Lower
1.7 in (43.0 mm) D Upper
Weight 655 g with baery 687 g
Cable Length N/A 5 . (1.5 m)
(Extension Cables Available)
General Corrosion
Range
(4–20mA Output)
0.001–10.000
(MPY Default Based on Metallurgy Selected in uPyxis)
Max General Corrosion
Range
(4–20mA Output)
0.001–995
(MPY Customizable Via uPyxis)
Localized Corrosion
Range
(4–20mA Output)
0.001–100
(Index Customizable Via uPyxis)
Max Localized Corrosion
Range
(4–20mA Output)
0.001–100
(Index Customizable Via uPyxis)
Conducvity
Compensaon 10 - 10,000 µS/cm
Sample Temperature -20 - 50°C
Reading Interval 3 to 1440 Minutes
(>3 Minutes Required for Localized Corrosion Data)
Resoluon 0.001 MPY
Alloy Factor 0–3
(Adjustable Default Assigned via uPyxis on Metallurgy UNS Code)
Installaon Flow cell with 1-inch NPT
Enclosure Material 304 stainless steel
Working Pressure Up to 100 psi (7 bar)
Temperature Working: -10 - 50 °C Storage: -20 - 70 °C
Protecon IP65
Regulaon CE / RoHS
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3 Unpacking Instrument
Remove the instrument and nd 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.
3.1 Standard Accessories
3.1.1 CR-200 Package (P/N: 51006)
• One CR-200 sensor
• One 3.6V ER26500 baery
• One pair of mild steel electrodes (P/N: 51002)
• One pair of copper electrodes (P/N: 51003)
• One 2.0 MPY steel calibraon check cap (P/N: 51010)
• One 0.1 MPY copper calibraon check cap (P/N: 51011)
• One Bluetooth adapter for PC (P/N: MA-NEB)
• User Manual is also available for download at hps://pyxis-lab.com/support/
3.1.2 CR-300 Package (P/N: 51007)
• One CR-300 sensor
• One 5- extension cable terminated with connectors
• One 2- cable with one end terminated with a connector
• One pair of mild steel electrodes (P/N: 51002)
• One pair of copper electrodes (P/N: 51003)
• One 2.0 MPY steel calibraon check cap (P/N: 51010)
• One 0.1 MPY copper calibraon check cap (P/N: 51011)
• One Bluetooth Adapter for CR-300 (P/N: MA-CR)
• One Bluetooth adapter for PC (P/N: MA-NEB)
• User Manual is also available for download at hps://pyxis-lab.com/support/
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3.2 Oponal Accessories
The following oponal accessories can be purchased via your Regional Sales contact or Pyxis Customer
Service at [email protected]om.
Figure 1.
*NOTE*Pyxis Lab does not manufacture LPR electrodes. We provide some electrodes from
Metal Samples as a convenience to our customer base. UNS Codes for each electrode format
are provided in a table on page 9 of this manual. Users may purchase these electrodes
directly from Metal Samples at hps://www.alspi.com/ms.htm.
4 Installaon
4.1 Electrode Installaon
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.
2. Place an O-ring to each threaded rod on the sensor.
3. Fasten the electrodes to the threaded rods to slightly compress the O-ring on the boom of the
threaded rod.
4. Clean the electrodes with isopropanol to remove any oil or other foreign materials on the electrode
surfaces.
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4.2 Piping
Figure 2. CR Series installaon into the sample ow 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 aected by the posion of the two-test metal electrodes in relaon to the water
ow. The electrodes should be fully immersed in the water sample and away from any turbulence. The
sensor body has three O-ring grooves to allow the 1-inch male NPT thread to be locked at three posions
on the sensor with a compression nut. Thus, the depth of the sensor inseron in the pipe can be adjusted.
For the best performance, the two-test metal electrodes should be installed to be parallel to the ow and
maintain a symmetry between the electrodes with respect to the ow environment as much as possible as
seen in Figure 5. Figures 6 and 7 show the dimensions of the CR-200 and CR-300, respecvely.
Figure 3. CR-200 dimensions in inch (mm)
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Figure 4. CR-300 dimensions in inch (mm)
4.3 Baery Installaon for CR-200
The 3.6 V ER26500 baery should be used and is available from Pyxis (P/N: 50730).
Figure 5. ER26500 baery (P/N: 50730)
WARNING
Do NOT use type C alkaline baeries for CR-200. Although type C alkaline baeries are in the same
dimensions as ER26500 lithium, they are 1.5 V nominal voltage baeries. CR-200 will NOT work with
type C alkaline baeries.
See detailed instruconal video (hps://www.youtube.com/watch?v=8LHabJX8Sx0) or follow the steps be-
low to install the ER26500 baery into the CR-200:
1. Loosen the two screws that fasten the baery cover plate (Figure 6).
2. Separate the cover plate from the CR-200 body (Figure 7).
*NOTE*Do NOT twist the cover plate
3. Place an ER26500 baery to the CR-200. Make sure that the posive terminal of the baery is facing
outward (Figure 8).
4. Place the baery cover plate back and fasten the two screws. Please make sure that the at cable
has been fully pushed inside the CR-200 baery compartment and avoid pinching the cable between
the CR-200 body and the cover plate (Figure 9).
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Figure 6. Figure 7.
Figure 8. Figure 9.
4.4 Wiring for CR-300
If the power ground terminal and the negave 4–20mA terminal in the controller are internally connected
(non-isolated 4–20mA input), it is unnecessary to connect the 4–20mA negave wire (Gray) to the 4–20mA
negave terminal in the controller. If a separate DC power supply other than that from the controller is
used, make sure that the output from the power supply is rated for 22–26 VDC @ 65mA.
*NOTE*The negave 24V power terminal (power ground) and the negave 4–20mA ter-
minal on the CR-300 sensor are internally connected.
Follow the wiring table below to connect the CR-300 sensor to a controller:
Table 2.
Wire Color Designaon
Red 24V +
Brown 24V Power ground
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
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See below for wiring illustraons 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 conguraon)
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Figure 12. Typical wiring for WalChem WebMaster One
Figure 13. Typical wiring for Advantage Controls MegaTron SS
*NOTE*To get a Ping signal, a jumper wire is needed from 4–20mA Input 2- to power
-24V.
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Figure 14. Typical wiring for Advantage Controls MegaTronXS
*NOTE*To get a Ping signal, a jumper wire is needed from 4–20mA Input 3- to power
-24V.
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4.5 Connecng via Bluetooth for CR-300
A Bluetooth adapter (P/N: MA-CR) can be used to connect a CR-300 sensor to a smart phone with the uP-
yxis® 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 alternave to both an external power supply and a Bluetooth adapter. PowerPACK
from Pyxis Lab oers external power, Input/Output signal, and Bluetooth connecvity.
Figure 15. Bluetooth connecon to CR-300 sensor
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5 Instrument Overview
5.1 Test Metal Electrodes
Pyxis provides 5-cm2(0.736 square inch) metal electrodes, commonly used in the LPR corrosion measure-
ment applicaons. The common names, UNS codes, and alloy factors are listed the table below.
Figure 16. Test Metal Electrode Dimensions, Inch [mm]
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Table 3. Test Metal Electrode Default Sengs
Common Designaon UNS Alloy Factor
Default 4–20mA
General
Corrosion Scale
(MPY)
Default 4–20mA
Localized
Corrosion Scale
(Index)
Aluminum AA1100 A91100 0.94 0–10 0–100
Aluminum AA6061 A96061 0.94 0–10 0–100
Aluminum AA2024 A92024 0.86 0–10 0–100
Cu/Ni - 70/30 C71500 1.50 0–1 0–10
Copper 110 ETP C11000 2.00 0–1 0–10
CDA 687 Aluminum
Brass Arsenical C68700 1.62 0–1 0–10
CDA 642 Aluminum
Silicon Bronze C64200 1.48 0–1 0–10
Arsenical Admiralty
Brass CDA443 C44300 1.67 0–1 0–10
Phosphorized Admiralty
Brass CD445 C44500 1.68 0–1 0–10
Pipe Grade Carbon Steel A135 1.00 0–10 0–100
Mild Steel C1010 G10100 1.00 0–10 0–100
Mild Steel C1015 G10150 1.00 0–10 0–100
Mild Steel C1018-C1020 G10180 1.00 0–10 0–100
Mild Steel C1080 G10800 1.00 0–10 0–100
Stainless Steel 304 S30400 0.89 0–0.5 0–10
Stainless Steel 304L S30403 0.89 0–0.5 0–10
Stainless Steel 316 S31600 0.90 0–0.5 0–10
Stainless Steel 316L S31603 0.90 0–0.5 0–10
Duplex Stainless 2205 -
F51 S31803 0.90 0–0.5 0–10
Duplex Stainless 2507 -
F53 S32750 0.90 0–0.5 0–10
Common Lead L50045 2.57 0–0.5 0–1
*NOTE*Metal electrodes with a dierent length and a slightly dierent diameter may be
used with the CR-200/300 sensor if the electrodes have a 4-40 internal thread and has a
surface are of 5 cm2. The alloy factor for a given metal alloy is proporonal to the surface
area of the electrode. If an electrode with a surface area dierent than 5 cm2(0.736 square
inch) is used, the user will need to calculate the proper alloy factor according to the surface
area and the default 5cm2alloy factor listed above.
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5.2 Default Sensor Sengs
The default 4–20 mA current outputs for mild steel are scaled as:
• 4 mA = 0 MPY or 0 localized corrosion index
• 20 mA = 10 MPY (general corrosion)
• 20 mA = 100 Index (localized corrosion)
The sensor is congured to measure the corrosion of mild steel by default. A default alloy factor and output
scales for both general and localized corrosion will be assigned by uPyxis. These values may be altered by
the user if desired. For measuring the corrosion rate of steel, the user just needs to scale 20 mA = 10 MPY
in the controller. Please refer to Secon 5.0 for a list of all metallurgies and preprogrammed default alloy
factors and 4–20mA output scales.
5.3 Conrm 4–20mA Output to MPY using the Calibraon Check Caps
The CR-200 and CR-300 are provided with one 2.0 MPY and one 0.1 MPY- calibraon check/vericaon
caps. These caps are designed to generate a known MPY value when connected to the uPyxis APP and
when the sensor is congured with the uPyxis Default Sengs assigned. These corrosion vericaon caps
will work regardless of which metallurgy is applied to the corrosion sensor and simply establish a known
electrical current to “simulate’ a specic MPY value. When the controller is scaled to match the uPyxis
default sengs, these caps will generate a “TEST” signal to conrm the controller reads properly.
*NOTE*Please note that when conducng a test with the calibraon vericaon caps, the
user should allow up to 15 minutes for the nal corrosion value to stabilize.
Follow the steps below to congure the controller’s 4–20 mA range:
1. Install two new test electrodes (example Steel or Copper)
2. Plug the sensor to the calibraon appropriate calibraon check cap and wait for at least for 15 minutes
to allow the sensor to carry out three complete measurements (Figure 17).
3. Conrm 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 calibraon cap.
Figure 17.
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5.4 CR-200 Funcon Buons and Indicator Lights
Figure 18.
5.4.1 Powering On/O
Press the ON/OFF buon to turn on the sensor and Bluetooth (Figure 20). The green indicator light on the
le and blue indicator light on the right will turn on for approximately two seconds. Aer the inial startup,
the green indicator light on the le will ash every 5 seconds, connuously, to indicate that the sensor is in
the measurement mode.
Press and hold the ON/OFF buon for 3 seconds to turn o the CR-200. The green indicator light on the
le will stop ashing.
5.4.2 Bluetooth Modes
The CR-200 will startup in the default Beacon mode. This mode allows mulple devices with the uPyxis®
App to view the current readings of the CR-200, however, sengs cannot be changed.
Press and hold the Bluetooth Mode buon on the CR-200 for up to 20 seconds, unl the blue indicator
light turns on, to switch to the Peripheral (Pairing) mode. In this mode, the blue indicator light will begin
ashing unl paired to the uPyxis® App. The blue indicator light will remain solid blue while paired. Only
one device can be paired at a me.
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