Pyxis LS-200 User manual

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

LS-200 Ultrasonic Level Sensor
User Manual
September 28, 2020
Rev. 1.02
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ons 2
3 Unpacking Instrument 2
3.1 Standard Provided Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2 OponalAccessories ..................................... 3
4 Installaon 3
4.1 Tank Top Installaon and Precauons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.2 Wiring............................................. 4
5 Instrument Overview 5
6 Setup with uPyxis® Mobile App 6
6.1 Download uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.2 Connecng to uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.3 OverviewScreen ....................................... 7
6.4 ReadingScreen ........................................ 8
6.5 SengsScreen ........................................ 8
7 Setup with uPyxis® Desktop App 9
7.1 InstalluPyxis®DesktopApp.................................. 9
7.2 Connecng to uPyxis® DesktopApp ............................. 10
7.3 OverviewScreen ....................................... 10
7.4 ReadingScreen ........................................ 11
7.5 SengScreen......................................... 12
8 Outputs 13
8.1 4–20mAOutputSetup .................................... 13
8.2 Communicaon Using Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Sensor Maintenance and Precauon 13
10 Regulatory Approval 14
11 Contact Us 14

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 4–20mA output, RS-485, 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ons
Table 1. LS-200 Specicaons
Specicaon*LS-200
Part Number (P/N) 54011
Range 4–86 inch (0.01–2.2 m)
Resoluon 0.02 inch (0.5 mm)
Accuracy ±0.15% of the range
Measurement
Interval
Connuous, 10 or 30 seconds, 3 or 30 minutes, 1 or 4 or 6 hours, or stopped
Output Bluetooth 5, 32  (10 m) Line of Sight, 4–20mA Analog Output, RS-485 Digital
Output with Modbus protocol
Installaon 1” male NPT
Cable Length 9.8  (3 m), extension cable available
Power Supply 24 VDC, 2 W
Dead Zone 4 inch (10 cm)
Dimension (H ×
Dia)
4.33 ×2.95 inch (110 ×75 mm)
Weight 0.45 lbs (210 g)
Enclosure Material Polycarbonate (PC)
Transducer Material Polyvinylidene Fluoride (PVDF)
Operaonal
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’s connuous improvement policy, these specicaons are 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].
LS-200 User Manual [email protected] | [phone]

3.1 Standard Provided Accessories
• Waterproof Cable Adapter/Flying Leads (10 ) P/N: 50774
• User Manual available online at hps://pyxis-lab.com/product/ls-200-ultrasonic-level-sensor/
3.2 Oponal Accessories
The following oponal accessories can be ordered from Pyxis Customer Service ([e-mail]) or
Pyxis eStore at hps://pyxis-lab.com/shop/.
Figure 1.
4 Installaon
4.1 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
Figure 2. Installaon illustraon
LS-200 User Manual [email protected] | [phone]

Figure 3. Dimensions, inch (mm)
4.2 Wiring
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 (green) 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 @ 65 mA.
*NOTE*The negave 24V power terminal (power ground) and the negave 4–20mA ter-
minal on the LS-200 are internally connected.
Follow the wiring table below to connect the LS-200 to a controller:
Table 2.
Wire Color Designaon
Red 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
LS-200 User Manual [email protected] | [phone]

5 Instrument Overview
The indicators on the top of the sensor (Figure 4) are used to indicate power status and Bluetooth connec-
on status.
Table 3.
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.
Figure 4. Sensor connecon and indicators
LS-200 User Manual [email protected] | [phone]

6 Setup with uPyxis® Mobile App
6.1 Download uPyxis® Mobile App
Download uPyxis® Mobile App from Apple App Store or Google Play.
Figure 5.
6.2 Connecng to uPyxis® Mobile App
Connect the LS-200 sensor to a mobile smart phone according to the following steps:
1. Open uPyxis® Mobile App.
2. On uPyxis® Mobile App, pull down to refresh the list of available Pyxis devices.
3. If the connecon is successful, the LS-200 and its Serial Number (SN) will be displayed (Figure 6).
4. Press on the LS-200 image.
LS-200 User Manual [email protected] | [phone]

Figure 6.
6.3 Overview Screen
When connected, the uPyxis® Mobile App will default to the OVERVIEW screen. The Overview screen
displays the current liquid level and volume of liquid remaining.
Figure 7.
LS-200 User Manual [email protected] | [phone]

6.4 Reading Screen
The READING screen displays the current volume of liquid remaining and liquid level over me.
Figure 8.
6.5 Sengs Screen
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.
*NOTE*For horizontal or other tanks that have a non-uniform cross secon, please contact
Pyxis Technical Support team ([e-mail]) for assistance.
To convert the measured distance to volumetric informaon, the user must enter three parameters via the
uPyxis® Mobile App’s Seng screen:
•Tank Volume (rated volume capacity of the tank)
•Installaon Height (from the boom of the tank to the boom of the LS-200)
•Max Level Height (from the boom of the tank to the liquid surface when lled to the rated capacity)
*NOTE*Max Level Height must be at least 4 inches less than Installaon Height
Figure 9 illustrates these parameters for the tank.
In the SETTING screen, the you can also set the Device Name, the Sampling Mode,LCD Display Value,LCD
Screen O Time (in seconds), and the Display Unit. To save the sengs, press APPLY SETTINGS. You may
also create or change a password for the LS-200 by pressing MANAGE PASSWORD.
LS-200 User Manual [email protected] | [phone]

Figure 9. Figure 10.
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 11. 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.
LS-200 User Manual [email protected] | [phone]

7.2 Connecng to uPyxis® Desktop App
Connect the LS-200 sensor to a Windows computer using a Bluetooth/USB adapter (P/N: MA-NEB) according
to the following steps:
1. Plug the Bluetooth/USB adapter into a USB port in the computer.
2. Launch uPyxis® Desktop App.
3. On uPyxis® Desktop App, click Device →Connect via USB-Bluetooth (Figure 12).
4. If the connecon is successful, the LS-200 and its Serial Number (SN) will be displayed in the le pane
of the uPyxis® window.
*NOTE*Aer the sensor and Bluetooth is powered up, it may take up to 10 seconds for the
adapter to establish the wireless signal for communicaon.
Figure 12.
7.3 Overview Screen
When connected, the uPyxis® Desktop App will default to the Overview screen. The Overview screen
displays the current liquid level and volume of liquid remaining.
LS-200 User Manual [email protected] | [phone]

Figure 13.
7.4 Reading Screen
The Reading screen displays the current liquid level and the liquid level over me.
Figure 14.
LS-200 User Manual [email protected] | [phone]

7.5 Seng Screen
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.
*NOTE*For horizontal or other tanks that have a non-uniform cross secon, please contact
Pyxis Technical Support team ([e-mail]) for assistance.
To convert the measured distance to volumetric informaon, the user must enter three parameters via the
uPyxis® Mobile App’s Seng screen:
•Tank Volume (rated volume capacity of the tank)
•Installaon Height (from the boom of the tank to the boom of the LS-200)
•Max Level Height (from the boom of the tank to the liquid surface when lled to the rated capacity)
*NOTE*Max Level Height must be at least 4 inches less than Installaon Height
Figure 15 illustrates these parameters for the tank.
In the Seng screen, the you can also set the Device Name, the Sampling Interval,LCD Display Value,LCD
Screen O Time (in seconds), and the Display Unit. To save the sengs, press Apply Sengs.
Figure 15.
LS-200 User Manual [email protected] | [phone]

8 Outputs
8.1 4–20mA Output Setup
The 4–20mA 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 4–20mA 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.
8.2 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.
9 Sensor Maintenance and Precauon
For best performance, keep the sensor ultrasonic surface clean using a so cloth or towel. 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 16.
Figure 16. Direcvity paern of the LS-200
LS-200 User Manual [email protected] | [phone]

10 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
11 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]