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Related Manuals for LSI LASTEM DQL011.1
Summary of Contents for LSI LASTEM DQL011.1
- Page 1 Environmental monitoring solutions Ultrasonic level sensor DQL011.1 User manual Updt. 07/03/2022 INSTUM_ 04852 Page 1/16...
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Page 2: Table Of Contents
Moving filter, type ........................10 Application ............................10 3.4.1 Configuring the DQL011.1 sensor for snow measurements ........... 10 3.4.2 Configuring the DQL011.1 sensor for water level measurements .......... 10 Data output ............................. 11 3.5.1 Main values ..........................11 3.5.2 Special values ........................... 11 3.5.3... - Page 3 Level sensor DQL011.1 – User manual Modbus-RTU ..................................14 Supported commands ........................14 Map of registers..........................14 Maintenance..................................15 Periodic maintenance ........................15 Testing ............................. 15 Disposal ....................................16 How to contact LSI LASTEM ............................16 INSTUM_ 04852 Page 3/16...
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Page 4: Introduction
It has two 4÷20 mA current analog outputs, for snow level and air temperature, and one of the RS-485 seri- al type with Modbus RTU protocol. DQL011.1 can be connected to LSI LASTEM data logger to other systems that use the same type of inputs. 1.2 Technical specifications DQL011.1... -
Page 5: Installation
Level sensor DQL011.1 – User manual 2 Installation For the installation of the DQL011.1 sensor, choose a site representative of the monitored area, which is exposed to the wind as little as possible, free of buildings, trees, boulders, fences and other surrounding obstacles that could alter the measurements. -
Page 6: Rs-485 Serial Connection
The OUT 1 and OUT 2 outputs are associated respectively with the level (or distance) of the snow and the air temperature. 2.3.3 Connection to LSI LASTEM data loggers To connect the wires to the LSI LASTEM data loggers, refer to the documentation supplied with the DQL011.1 sensor. INSTUM_ 04852... -
Page 7: Testing And Adjustment
Repeat point 3 to check the accuracy of the measurement. If necessary, repeat the adjustment procedure. 3 DQL011.1 Sensor configuration DQL011.1 is already configured for use with LSI LASTEM data loggers, with both current and Modbus RTU output. These are the operating parameters: General settings... -
Page 8: Access To The Configuration
Level sensor DQL011.1 – User manual 3.1 Access to the configuration By means of a terminal emulation program, such as Windows Hyper terminal, it is possible to modify the sensor configuration parameters from the PC by connecting via the USB / RS-485 cable supplied. -
Page 9: General Settings
Level sensor DQL011.1 – User manual 3.2 General settings 3.2.1 Measurement trigger Measurements are initiated by one of the options listed in the table below. Option Value Description Interval (default) Measurements are initiated in a specified interval. TRIG input Measurements are triggered by the positive edge of a DC-voltage signal applied to the TRIG input (low: 0 ... -
Page 10: Moving Filter, Duration
Moving filter, type to elim. all spikes. ATTENTION! Make sure to upload the modified parameters to the sensor and test the new settings (§2.4). 3.4.2 Configuring the DQL011.1 sensor for water level measurements If the sensor is used for level monitoring, set: •... -
Page 11: Data Output
Level sensor DQL011.1 – User manual 3.5 Data output The measurement values returned by the sensor are arranged in a fixed sequence and identified by an index. They are divided into three groups and can be selected in OP, information. -
Page 12: Exception Values
Level sensor DQL011.1 – User manual 3.5.4 Exception values Value Description 9999.998 Initial value: No measurement has been performed yet (position of decimal character is irrelevant). 9999.997 Conversion error: Caused by a technical problem (position of decimal character is irrelevant). -
Page 13: Lsi Lastem Data Logger Configuration
➢ Open the current configuration of the data logger. ➢ Add the DQL011.1 Dig sensor from the sensor library. If the data logger in use is Alpha-Log, you will be asked to set the Modbus as input type and the communication parameters of the serial port where the sensor will be connected. -
Page 14: Modbus-Rtu
Level sensor DQL011.1 – User manual 5 Modbus-RTU The DQL011.1 sensor implements the Modbus protocol in RTU slave mode. 5.1 Supported commands The sensor supports the Read input registers (0x04) command for accessing the acquired data. If the data request refers to an incorrect command or register, the sensor does not generate any response message. -
Page 15: Maintenance
Level sensor DQL011.1 – User manual 6 Maintenance 6.1 Periodic maintenance The absence of moving parts minimizes sensor maintenance. However, the device should be inspected oc- casionally for damage and a dirty sensor surface. To remove dirt use a wet cloth with little force. -
Page 16: Disposal
(RAEE). For this reason, at the end of its life, the instrument must be kept apart from oth- er wastes. LSI LASTEM is liable for the compliance of the production, sales and disposal lines of this product, safeguarding the rights of the consumer. Unauthorized disposal of this product will be punished by the law.
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