Pyxis LS-200 User manual

LS-200 Level Sensor
User Manual
January 22, 2020
Rev. 1.00
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
2 Specicaon 2
3 Unpacking Instrument 2
3.1 Standard Provided Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Installaon 3
4.1 Wiring............................................. 3
4.2 Tank Top Installaon and Precauons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5 Instrument Indicator Overview 4
6 Setup with uPyxis® Mobile App 5
6.1 Download uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2 Connecng to uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.3 Parameter Seng via uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.4 Seng a Password via uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Setup with uPyxis® Desktop App 9
7.1 InstalluPyxis®DesktopApp.................................. 9
7.2 Connecng to uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.3 Parameter Seng via uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 4-20 mA Output Setup 13
9 Communicaon Using Modbus RTU 13
10 Sensor Maintenance and Precauon 13
11 Regulatory Approval 14
12 Contact Us 15

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/.
LS-200 User Manual [email protected] | [phone]

1 Introducon
The Pyxis LS-200 is a general-purpose ultrasonic sensor. It provides connuous level measurement up to 86
inches (7.2 . or 2.2 m) with a 4-20 mA output, RS485, and Bluetooth digital outputs. It can be congured
via the uPyxis® App on your mobile phones or computers. The sensor is powered by a 24 VDC external
power supply. This non-contact liquid level sensor is well suited for corrosive liquids and can be used for
industrial and municipal liquid storage and chemical feed applicaons.
2 Specicaon
Item Parameter
Power Supply*24 VDC, 2W
Output Bluetooth 4.1, 32 . (10 Meters) Line of Sight / RS-485 MODBUS and 4-20 mA
Cable Length 9.8 . (3 m), extension cable available
Range 4 – 86 inch (0.01 – 2.2 meter)
Resoluon 0.02 inch (0.5 mm)
Accuracy ±0.15% of the range
Dead Zone 4 inch (10 cm)
Measurement Interval Connuous, 10 or 30 seconds, 3 or 30 minutes, 1, or 4 or 6 hours, or stopped
Installaon 1-inch NPT
Weight 0.45 pound (210 g)
Dimension Height: 4.33 inch (110 mm); Diameter: 2.95 inch (75 mm)
Enclosure Material Polycarbonate (PC)
Transducer Material Polyvinylidene Fluoride (PVDF)
Ambient Temperature 5 - 122 °F (-15 - 50 °C)
Storage Temperature -4 - 140 °F (-20 - 60 °C)
Pressure 14 - 30 PSI (0.1 - 0.2 MPa)
Enclosure Rang IP67
Regulaon CE
*With Pyxis’ connuous improvement policy, this specicaon is subject to change without noce.
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 or by phone at [phone].
3.1 Standard Provided Accessories
• LS-200 Sensor P/N: 54011
• Waterproof Cable Adapter/Flying Leads (10) P/N: 50774
• Bluetooth/USB adapter P/N: MA-NEB
LS-200 User Manual [email protected] | [phone]

4 Installaon
4.1 Wiring
The LS-200 level sensor is powered by a 24V DC power supply from any standard controller, PLC or DCS. The
unit oers both 1x 4-20mA and 1x RS-485 Modbus outputs. If the power ground terminal and the negave
4-20 mA terminal in the controller are internally connected (non-isolated 4-20mA input), it is unnecessary to
connect the 4-20 mA negave wire (green) to the 4-20 mA negave terminal in the controller. If a separate
DC power supply other than from a controller is used, make sure that the output from the power supply is
rated for 22-26 VDC @ 80mA. Under standard installaons the clear wire is not landed and remains unused.
In unusual cases, a low-quality power supply may cause the sensor reading to be unstable. Connecng the
clear wire to the earth ground of the controller may resolve this problem.
*NOTE*Pyxis recommends powering o the controller, landing wires to controller terminal
board while the adapter to LS-200 is disconnected. Once the controller is powered on, re-
connect the adapter end to the LS-200. Follow the wiring table below to connect the sensor
to a controller or receiving device.
Wire Color Designaon
Red 24 V +
Black 24 V Power ground
White 4-20 mA +
Green 4-20 mA -, internally connected to the power ground
Blue RS-485 A
Yellow RS-485 B
Clear Shield, earth ground
4.2 Tank Top Installaon and Precauons
The sensor should be installed to a 1-inch bulkhead ng on the top of the tank. The major dimensions of
the sensor are shown in Figure 2. If a at horizontal surface is not available on the top of the tank, please use
a self-aligning bulkhead ng so that the sensor can be adjusted to be perpendicular to the liquid surface.
• Install and adjust the sensor to be perpendicular to liquid surface
• Installaon locaon shall not be too close to container wall to avoid interference.
• The sensor has a 3.94 inch (10 cm) dead zone (DZ). Raise the probe to avoid the DZ if desired
• Do not install in a locaon which will cause the ultrasonic wave to be obstructed
• Do not install the sensor in a vacuum environment
LS-200 User Manual [email protected] | [phone]

Figure 1. Installaon illustraon
Figure 2. Dimensions, inch (mm)
5 Instrument Indicator Overview
The indicators on the top of the sensor (Figure 3) are used to indicate power status and Bluetooth connec-
on status.
LED Status On O
Green LED Power Supply is on Power Supply is o
Blue LED Bluetooth is connected Bluetooth is disconnected
*NOTE*The Bluetooth connected LED will illuminate within 30 seconds of powerup of the
device. This feature is designed to minimize controller power draw during startup.
LS-200 User Manual [email protected] | [phone]

Figure 3. Sensor connecon and indicators
6 Setup with uPyxis® Mobile App
6.1 Download uPyxis® Mobile App
Download uPyxis® Mobile App from Apple App Store or Google Play.
Figure 4.
6.2 Connecng to uPyxis® Mobile App
Turn on Bluetooth on your mobile phone (Do not pair the phone Bluetooth to the LS-200). Open uPyxis®
Mobile App. Once the app is open the app will start to search for the sensor. When the uPyxis® Mobile
App connects to the sensor then press on the LS-200 Sensor Picture.
LS-200 User Manual [email protected] | [phone]

Figure 5.
6.3 Parameter Seng via uPyxis® Mobile App
The sensor measures the distance between the liquid surface in the tank and the boom sensor surface.
Converng this measured distance to other parameters such as the tank level, the remaining liquid volume,
or the consumed liquid, requires the tank dimensional and volume capacity informaon. Common vercal
tanks have a uniform horizontal cross secon. As such, the liquid volume is proporonal to the liquid level.
To convert the measured distance to volumetric informaon, it requires the user to enter three parameters.
Figure 6 illustrates these parameters for the tank. When connected, uPyxis® Mobile App will default to the
Overview screen. To enter the seng press on Seng tab.
*NOTE*For horizontal or other tanks that have a non-uniform cross secon, please contact
Pyxis Technical Support team ([e-mail]) for assistance.
LS-200 User Manual [email protected] | [phone]

Figure 6.
In the Seng screen, you can set the Level Sensor Sengs by renaming the Device Name. The Sampling
Mode can be changed to your preference. To congure the tank, enter the sengs by pressing on Tank
Volume,Installaon Height,Max Level, and Display Units. To save the sengs, press Apply Sengs.
*NOTE*Max Level Height must be at least 4 inches less than Installaon Height
Figure 7.
To verify your readings aer seng your parameters click on Reading.
LS-200 User Manual [email protected] | [phone]

Figure 8.
6.4 Seng a Password via uPyxis® Mobile App
The LS-200 also has password protect capabilies. To password protect the seng on Password, press
Set. Aer pressing Set, the screen will change over to the Set Password screen. Before seng a new
password, contact Pyxis Service Department and give them the code at the boom of the screen. The
service representave will provide you with a password enabling you to reset a new password. Enter the
password that was given in the Original Password box. Then enter the New Password,Conrm Password,
and press Set Password.
Figure 9.
LS-200 User Manual [email protected] | [phone]

7 Setup with uPyxis® Desktop App
7.1 Install uPyxis® Desktop App
Download the latest version of uPyxis® Desktop soware package from: hp://www.pyxis-lab.com/sup-
port.html. This setup package will download and install the Microso.Net Framework 4.5 (if not installed
on the PC before), the USB driver for the USB-Bluetooth adapter, the USB-RS485 adapter, and the main
uPyxis® Desktop applicaon. Double click the uPyxis.Setup.exe le to install.
Figure 10. uPyxis® desktop app installaon
Click Install to start the installaon process. Follow the screen instrucons to complete the USB driver and
uPyxis® installaon.
7.2 Connecng to uPyxis® Desktop App
Connect the to a Windows computer using a Bluetooth/USB adapter (PN: MA-NEB, included in the package)
according to the following steps:
1. Connect the Bluetooth/USB adapter (PN: MA-NEB) to the computer USB.
2. Double click the uPyxis.exe icon to launch the program on your Desktop.
3. On uPyxis® Desktop App, click menu Device -> Connect via USB-Bluetooth as shown in Figure 11. If
the connecon is successful, the LS-200 image and its Serial Number will be displayed in the le pane
of the uPyxis® window as shown in Figure 12.
*NOTE*Aer the LS-200 and the Bluetooth/USB adapter are powered up, it may take up
to 10 seconds for the adapter to establish the wireless communicaon with the LS-200.
LS-200 User Manual [email protected] | [phone]

Figure 11. Connect uPyxis® desktop app to LS-200
Figure 12. Denions of terms
7.3 Parameter Seng via uPyxis® Desktop App
Click Seng to set the parameters as show in Figures 13-15. The sensor measures the distance between
the liquid surface in the tank and the boom sensor surface. Converng this measured distance to other
parameters such as the tank level, the remaining liquid volume, or the consumed liquid, requires the tank
dimensional and volume capacity informaon. Common vercal tanks have a uniform horizontal cross sec-
on. As such, the liquid volume is proporonal to the liquid level. To convert the measured distance to
volumetric informaon, it requires the user to enter three parameters as shown in Figure 13.
*NOTE*For horizontal or other tanks that have a non-uniform cross secon, please contact
Pyxis Technical Support team ([e-mail]) for assistance.
LS-200 User Manual [email protected] | [phone]

The maximum height is the liquid level measured from the tank boom when the tank is lled to the rated
volume capacity. The installaon height is the distance between tank boom and the sensor boom sur-
face.
*NOTE*Max Level Height must be at least 4 inches less than Installaon Height
Figure 13. Illustraon of terms and tank capacity setup
Figure 14. Measurement mode drop-down selecon
LS-200 User Manual [email protected] | [phone]

Figure 15. Click Apply Sengs to save the sengs
Denions of terms in Figures 13–15.
• Volume: Volume of the tank
• Max Height: Liquid level measured from the tank boom as lled to rated capacity
• Installaon Height: The distance between the tank boom and the sensor boom surface.
• Sampling Interval: Connuous, 10 seconds, 30 seconds, 3 minutes, 30 minutes, 1, 4, 6
hours, or stopped
Click Reading menu to display real-me measurement data in a trend chart (Figure 16).
Figure 16. Level trend chart
To upgrade rmware, click System as shown in Figure 17. The latest rmware can be downloaded from
hp://www.pyxis-lab.com/support.html.
LS-200 User Manual [email protected] | [phone]

Figure 17. Firmware upgrade
8 4-20 mA Output Setup
The 4-20 mA output of the sensor is scaled as:
• 4 mA = (Tank is Empty) = (Level is 0) = (Distance is Installaon Height),
• 20 mA = (Tank is Full) = (Level is maximum height) = (Distance is Installaon Height – Maximum
Height).
The 4-20 mA analog signal can be converted to one of four values (Level, Distance, Volume Remaining, or
Volume Consumed) in the controller receiving the output according to the above scale. For example, a
nominal 100-gallon vercal tank, the maximum height is 36 inches and installaon height is 42 inches. The
tank volume is 100 gallons when it is lled up to the maximum height 36 inches. The controller should be
set up to convert 20 mA to 100 gallons, at which the tank is full and the tank level is 36 inches and the
distance measured is 6 inches.
*NOTE*The nominal capacity provided by the tank manufacturer may be greater than the
maximum safe (net or eecve) capacity that can be praccally lled. Please keep this in
mind as you congure your LS-200 for praccal purposes.
9 Communicaon Using Modbus RTU
The sensor can be congured as a Modbus slave device via RS-485. In addion to the level, volume, and
distance, many operaonal parameters, including warning and error messages, are available via a Modbus
RTU connecon. Contact Pyxis Lab Customer Service ([email protected]) for more informaon.
10 Sensor Maintenance and Precauon
For best performance, keeps the sensor ultrasonic surface clean using a so cloth or towel. And Please.
noce that somemes the maximum sound pressure level inside the beam area is up to 165dB, which
exceeds the standard safe limit of 110dB. Never point the probe at the eye. The direcvity paern of the
probe is shown in Figure 18.
LS-200 User Manual [email protected] | [phone]

Figure 18. Direcvity paern of the LS-200
11 Regulatory Approval
United States
The LS-200 sensor has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protecon against harmful
interference in a residenal installaon. This equipment generates, uses and can radiate radio frequency
energy, and if not installed and used in accordance with the instrucons, may cause harmful interference to
radio communicaons. However, there is no guarantee that interference will not occur in an installaon. If
this equipment does cause harmful interference to radio or television recepon, which can be determined
by turning the equipment o and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separaon between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is con-
nected.
• Consult the dealer or an experienced radio/TV technician for help
Canada
This device complies with Industry Canada license exempt RSS standard(s). Operaon is subject to the
following two condions: (1) this device may not cause interference, and (2) this device must accept any in-
terference, including interference that may cause undesired operaon of the device. Le présent appareil est
conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitaon est
autorisée aux deux condions suivantes: (1) l’appareil ne doit pas produire de brouillage, et (2) l’ulisateur
de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est suscepble
LS-200 User Manual [email protected] | [phone]

12 Contact Us
Pyxis Lab, Inc
1729 Majesc Dr. Suite 5
Lafayee, CO 80026 USA
www.pyxis-lab.com
Phone: [phone]
Email: [email protected]
LS-200 User Manual [email protected] | [phone]