Pyxis 54011 Скачать руководство пользователя страница 16

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 Installation Height),

• 20 mA = (Tank is Full) = (Level is maximum height) = (Distance is Installation 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 vertical tank, the maximum height is 36 inches and installation height is 42 inches. The
tank volume is 100 gallons when it is filled 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 effective) capacity that can be practically filled. Please keep this in
mind as you configure your LS-200 for practical purposes.

8.2

Communication Using Modbus RTU

The sensor can be configured as a Modbus slave device via RS-485. In addition to the level, volume, and
distance, many operational parameters, including warning and error messages, are available via a Modbus
RTU connection. Contact Pyxis Lab Customer Service (

[email protected]

for more information.

9

Sensor Maintenance and Precaution

For best performance, keep the sensor ultrasonic surface clean using a soft cloth or towel. Notice that
sometimes 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 directivity pattern of the probe is
shown in Figure 16.

Figure 16.

Directivity pattern of the LS-200

LS-200 User Manual

[email protected]

| +1 (866) 203-8397

13

Содержание 54011

Страница 1: ......

Страница 2: ...00 Ultrasonic Level Sensor User Manual September 28 2020 Rev 1 02 Pyxis Lab Inc 1729 Majestic Dr Suite 5 Lafayette CO 80026 USA www pyxis lab com 2017 Pyxis Lab Inc Pyxis Lab Proprietary and Confident...

Страница 3: ...6 6 1 Download uPyxis Mobile App 6 6 2 Connecting to uPyxis Mobile App 6 6 3 Overview Screen 7 6 4 Reading Screen 8 6 5 Settings Screen 8 7 Setup with uPyxis Desktop App 9 7 1 Install uPyxis Desktop A...

Страница 4: ...elivery All service interventions are to be reviewed and authorized as correct and complete at the completion of the service by a customer representative or des ignate Pyxis warrants these services fo...

Страница 5: ...4 20mA Analog Output RS 485 Digital Output with Modbus protocol Installation 1 male NPT Cable Length 9 8 ft 3 m extension cable available Power Supply 24 VDC 2 W Dead Zone 4 inch 10 cm Dimension H Di...

Страница 6: ...dimensions of the sensor are shown in Figure 2 If a flat horizontal surface is not available on the top of the tank please use a self aligning bulkhead fitting so that the sensor can be adjusted to be...

Страница 7: ...he controller is used make sure that the output from the power supply is rated for 22 26 VDC 65 mA NOTE The negative 24V power terminal power ground and the negative 4 20mA ter minal on the LS 200 are...

Страница 8: ...n LED Power Supply is on Power Supply is off Blue LED Bluetooth is connected Bluetooth is disconnected NOTE The Bluetooth connected LED will illuminate within 30 seconds of powerup of the device This...

Страница 9: ...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 con...

Страница 10: ...n 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 service pyxi...

Страница 11: ...or assistance To convert the measured distance to volumetric information the user must enter three parameters via the uPyxis Mobile App s Setting screen Tank Volume rated volume capacity of the tank I...

Страница 12: ...oft 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 application Double click the uPyxis Setup exe fil...

Страница 13: ...12 4 If the connection is successful the LS 200 and its Serial Number SN will be displayed in the left pane of the uPyxis window NOTE After the sensor and Bluetooth is powered up it may take up to 10...

Страница 14: ...Figure 13 7 4 Reading Screen The Reading screen displays the current liquid level and the liquid level over time Figure 14 LS 200 User Manual service pyxis lab com 1 866 203 8397 11...

Страница 15: ...e measured distance to volumetric information the user must enter three parameters via the uPyxis Mobile App s Setting screen Tank Volume rated volume capacity of the tank Installation Height from the...

Страница 16: ...ty provided by the tank manufacturer may be greater than the maximum safe net or effective capacity that can be practically filled Please keep this in mind as you configure your LS 200 for practical p...

Страница 17: ...the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is con nected Consult the dealer or an experienced radio T...

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