SMERI PLUR Series User Manual

Ultrasonic level meter

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USER MANUAL
ULTRASONIC LEVEL METER PLUR
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Summary of Contents for SMERI PLUR Series

  • Page 1 USER MANUAL ULTRASONIC LEVEL METER PLUR - 1 -...
  • Page 2: Table Of Contents

    CONTENT 1. Introduction..........................- 3 - 1.1 Application........................- 3 - 1.2 Features........................- 3 - 1.3 Structure........................- 3 - 1.4 Measuring principle: Time-of-flight method............. - 4 - 1.5 Technical Data......................- 5 - 2. Installation..........................- 7 - 2.1 Installation Considerations..................- 7 - 2.2 Mounting Dimensions....................
  • Page 3: Introduction

     Provided programmable 6 relays at most for alarms;  Three button for programming or remote control for easy configuration and operation(opt.); 1.3 Structure The PLUR series consists of a probe and a host. The remote control is optional. - 3 -...
  • Page 4: Measuring Principle: Time-Of-Flight Method

    1.4 Measuring principle: Time-of-flight method The probe is mounted on the top of the flume, and ultrasonic pulses is transmitted by the probe to the surface of the monitored material. There, they are reflected back and received by the pro be. The host measures the time t between pulse transmission and reception.
  • Page 5: Technical Data

    1.5 Technical Data 1.5.1 The host Type Power supply DC24V (±5%) 0.2A; AC220V (±20%) 0.1A Display Graphical LCD Resolution Analogue output 4-20mA Relays outputs 6 multi-function SPDT relays at most (optional), rated 5A /250VAC/30VDC, high, low and failsafe alarm and control corresponding to level or distance values .
  • Page 6 1.5.2 The probe  L-4、L-6、L-8 Technical data Measuring range L-4:0-4m blacking distance:20cm L-6:0-6m blacking distance:25cm L-8:0-8m blacking distance:30cm Temperature -40℃~80℃ range Pressure range ±0.1MP (press definitely) Beam angle 8°(3db) Material ABS/PVC/PTFE Protect grade IP68 The length of cable 10m(standard) Flange /screw ...
  • Page 7: Installation

    2. Installation Reasonable installation is critical factor of the instrument’s normal working. Installation must be carried out by trained person in accordance with the manual. 2.1 Installation Considerations 2.1.1 Hints for the host mounting The host should not be mounted in a confined space where temperatures may exceed the normal working temperature (-20~+70), if the host is mounted outside, it must be protected from direct sunlight or severe weather conditions.
  • Page 8: Mounting Dimensions

    2.2 Mounting Dimensions  The host - 8 -...
  • Page 9  The probe 4m、6m、8m 12m 20m、30m、40m  The remote control - 9 -...
  • Page 10: Wiring

    3. Wiring The PLUR series has one LCD show and three keys for setting and some terminal blocks, which are located within the host housing and can be operated when the terminal cover is open. 3.1 The host Remote Control...
  • Page 11: The Cable

     AC220V power supply NOTES: The connection maybe different according to the different power supply and signal output. When the RS485 serial communication function is provided, the relays can be provided with 5 pcs at most. Carefully confirm the marked power supply terminals, to ensure the correct power supply connection.
  • Page 12: Operation

    4. Operation 4.1 Display and Keys The PLUR series is displayed with the Graphical LCD, and it has three keys, with its functions as follow: Keys Functions 1: Go into the next level menu or program 2: Saves the current Settings 3: Switch the measurement page 1.
  • Page 13 value, the sensor state, the bar chart, and the relay state. Other information pages can display the distance value,probe temperature and output current. The main measurement page (display content sample is as follows): Graphic description: 1 PV indicator: indicator is the main variable is the Level or Distance(depends on the setting ), current output corresponding to it.
  • Page 14 , the level value and the output current will not change. The PLUR series can provide 6 relays which may be used for control purposes. These relays are for light duty and should be used as signal relays only, with control functions being performed by external control relays.
  • Page 15 Parameter modification operation When parameters are modified, the upper right corner of the screen will appear, prompt parameter has been changed, but not save.If press the MOV + SEL to exit, instrument will not save the changes. If want to save the setting, press the SEL button icon shows the modified setting have been saved.Then press MOV + SEL exit to the upper menu.
  • Page 16 normally. Press MOV ,select PV from Level or Distance.Change affects PV Select measurement information Page, and the current output corresponding to it. Press MOV , switching between m and ft,(the default unit is m) Change affects measurement 2.Level Unit information Page, and change all the Settings about the level or distance values.
  • Page 17 Address 1 ~ 247 valid 1.Modbus Address (default:001) Press INC select between Check and Baud. Press MOV right change the parameter in cycle. 2.Modbus Check:None(8n1)/None(8n2) Setup /odd/Even(Default) Baud Rate : 1200 / 2400 / 4800 /9600(Default)/19200 Modify the Modbus delay time, 3.Modbus make some host communication Delay...
  • Page 18 echo or lost the sensor) According corresponding relay parameter PV value is greater than or less than this value, the relay 5.Relay1 Set Point 1-6 action, on or off,determined by (Relay the corresponding parameters of the relay. Set point Setting is same here) (...
  • Page 19 After connecting to the ammeter, the instrument will output no fixed 4 mA current, you need to input actual ammeter readings and 4mA fixed then press SEL, instrument would calibration automatically, repeat the steps until the output current is 4.0 mA. Press SEL +MOV to quit After connecting to the ammeter, the instrument will output no fixed...
  • Page 20: Calibration

    Switch the system Language : Language /语言 Chinese /English Info Instrument Info display instrument type and the connected probe Info type. Notes:  Push the buttons firmly, but not too hard, to avoid damaging the circuit boards.  When the instrument is used for pump control, please avoid to directly connect the relays to pump power supply circuit.
  • Page 21: Serial Communication-Modbus-Rtu

     Press SEL and MOV keys simultaneously in short and then enter the Programming mode. Adjust installation height, then the instantaneous level value should change accordingly.  Adjust the full scale in the basic setting, and test the output current with a multi-meter, the output current should change, too. Because the output current is always in accordance with the level value/ distance value.
  • Page 22: Abnormal Corresponding

    Abnormal corresponding According to the specific application of this instrument, three abnormal data are supported in the RTU mode. 01: false function 02: false data address 03: false data Electrical connection The instrument supports the EIA/TIA-485 standard 2-wire communication link. This instrument does not require polarity of the bias circuit.
  • Page 23 Slav Data Registe Register ..Register Count r Data Data 2 Data M Check Check Addr High 1 :Slave Address:Slave address range (001 ~ 247) 2 :0x03: function code of read keep register 3 : Data count. 4, 5: Register Data 1 6,7: Register Data 2 M-1,M: Register Data M M+1, M+2 : CRC check...
  • Page 24 Host: 0x01 0x03 0x00 0x00 0x00 0x03 0xB2 0x49 Slave: 0x01 0x03 0x06 0x15 0xFA 0x09 0x46 0x00 0x11 0xD9 0xE1 Level value :0x15FA (5626mm) distance value :0x0946(2374mm) temperature value :0x0011(17℃) - 24 -...
  • Page 25: Trouble-Shooting

    6. Trouble-shooting Trouble Phenomenon Trouble Reason Solution The instrument does Power supply error. Check the power supply. not show, and does Wiring error. Check the wiring. not work. The sensor doesn’t aim at the liquid or Adjust the sensor and aim at the the material.

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