Chemtrol Pyxis LS-200 User manual
LS-200 Level Sensor
User Manual
February 20, 2020
Rev. 1.00
Table of Contents
1 Introducon 2
2 Specicaons 2
3 Unpacking Instrument 2
3.1 Standard Provided Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4 Installaon 3
4.1 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.2 Tank Top Installaon and Precauons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5 Instrument Indicator Overview 4
6 Setup with uPyxis® Mobile App 5
6.1 Download uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2 Connecng to uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.3 Parameter Seng via uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.4 Seng a Password via uPyxis® Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Setup with uPyxis® Desktop App 9
7.1 Install uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.2 Connecng to uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.3 Parameter Seng via uPyxis® Desktop App . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 Outputs 13
8.1 4-20mA Output Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.2 Communicaon Using Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Sensor Maintenance and Precauon 13
10 Regulatory Approval 14
11 Contact Us 15
Warranty Informaon
Condenality
The informaon contained in this manual may be condenal and proprietary and is the property of Pyxis
Lab, Inc. Informaon disclosed herein shall not be used to manufacture, construct, or otherwise reproduce
the goods described. Informaon disclosed herein shall not be disclosed to others or made public in any
manner without the express wrien consent of Pyxis Lab, Inc.
Standard Limited Warranty
Pyxis Lab warrants its products for defects in materials and workmanship. Pyxis Lab will, at its opon, repair
or replace instrument components that prove to be defecve with new or remanufactured components
(i.e., equivalent to new). The warranty set forth is exclusive and no other warranty, whether wrien 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 dysfunconal instruments may be returned to Pyxis for repair or r eplacement. In some in-
stances, replacement instruments may be available for short duraon loan or lease.
Pyxis warrants that any labor services provided shall conform to the reasonable standards of technical com-
petency and performance eecve at the me of delivery. All service intervenons are to be reviewed and
authorized as correct and complete at the compleon of the service by a customer representave, or des-
ignate. Pyxis warrants these services for 30 days aer the a uthorizaon and will correct any qualifying
deciency in labor provided that the labor service deciency is exactly related to the originang 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-
corporaon of a warranted repair component into an instrument extend the whole instrument’s warranty
beyond its original term.
Warranty Shipping
A Repair Authorization (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.
LS-200 User Manual 1
1 Introducon
The Pyxis LS-200 is a general-purpose ultrasonic sensor. It provides connuous 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 congured
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 applicaons.
2 Specicaons
Item Specicaon
Range 4–86 inch (0.01–2.2 m)
Resoluon 0.02 inch (0.5 mm)
Accuracy ±0.15% of the range
Measurement
Interval
Connuous, 10 or 30 seconds, 3 or 30 minutes, 1 or 4 or 6 hours, or stopped
Output Bluetooth 4.1, 32 (10 m) Line of Sight, 4-20mA Analog Output, RS-485 Digital
Output with Modbus protocol
Installaon 1-inch male NPT
Cable Length 9.8 (3 m), extension cable available
Power Supply*24 VDC, 2 W
Dead Zone 4 inch (10 cm)
Dimension Height: 4.33 inch (110 mm); Diameter: 2.95 inch (75 mm)
Weight 0.45 lbs (210 g)
Enclosure Material Polycarbonate (PC)
Transducer
Material
Polyvinylidene Fluoride (PVDF)
Operaonal
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 Rang IP67
Regulaon CE
*With Pyxis’ connuous improvement policy, this specicaon is subject to change without noce.
3 Unpacking Instrument
Remove the instrument and nd the standard accessories from the shipping container as listed b elow. In-
spect each item for any damage that may have occurred during shipping. Verify that all accessory items are
included.
LS-200 User Manual 2
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
4 Installaon
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 oers both a 4-20mA output and an RS-485 Modbus output. If the power ground terminal and the
negave 4-20mA terminal in the controller are internally connected (non-isolated 4-20mA input), it is un-
necessary to connect the 4-20mA negave wire (green) to the 4-20mA negave 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 @ 80 mA. Under standard installaons 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.
Connecng 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 Designaon
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
4.2 Tank Top Installaon and Precauons
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
• Installaon locaon 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 locaon which will cause the ultrasonic wave to be obstructed
• Do not install the sensor in a vacuum environment
LS-200 User Manual 3
Figure 1. Installaon illustraon
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 4
Figure 3. Sensor connecon 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 Connecng 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 5
Figure 5.
6.3 Parameter Seng via uPyxis® Mobile App
The sensor measures the distance between the liquid surface in the tank and the boom sensor surface.
Converng 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 informaon. Common vercal
tanks have a uniform horizontal cross secon. As such, the liquid volume is proporonal to the liquid level.
To convert the measured distance to volumetric informaon, 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 seng press on Seng tab.
LS-200 User Manual 6
Figure 6.
In the Seng screen, you can set the Level Sensor Sengs by renaming the Device Name. The Sampling
Mode can be changed to your preference. To congure the tank, enter the sengs by pressing on Tank
Volume,Installaon Height,Max Level, and Display Units. To save the sengs, press Apply Sengs.
*NOTE*Max Level Height must be at least 4 inches less than Installaon Height
Figure 7.
To verify your readings aer seng your parameters click on Reading.
LS-200 User Manual 7
Figure 8.
6.4 Seng a Password via uPyxis® Mobile App
The LS-200 also has password protect capabilies. To password protect the seng on Password, press
Set. Aer pressing Set, the screen will change over to the Set Password screen. Before seng a new
password, contact Pyxis Service Department and give them the code at the boom of the screen. The
service representave 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,Conrm Password,
and press Set Password.
Figure 9.
LS-200 User Manual 8
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