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G-Tek LM Pro 63 Series Operating Manual

Pressure data logger
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Summary of Contents for G-Tek LM Pro 63 Series

  • Page 2: Table Of Contents

    ONTENTS Contents ..........................0 List of Tables ........................2 List of Figures ......................... 3 Safety and the environment .................... 4 Use .............................4 Ensure Safety ........................4 Protecting the environment ....................4 Specifications ......................... 5 Use .............................5 Features ..........................5 Technical Data........................6 Unpacking and inspection of data logger ................ 8 Overall mechanical dimensions for Round plate data logger ..........9 Overall mechanical dimensions for Square plate data logger ..........
  • Page 3 6.3.5 UNIT ............................... 22 6.3.6 OFST (offset) ............................23 6.3.7 MUL (Multiplier) ............................ 23 RTC (Real time clock) ......................24 UPDR (Update Display Refresh Rate).................. 25 PSEN (Password Enable) ....................25 CHPS (Change Password) ....................26 **BSTS (Batch start/stop) ....................26 **SINT (Store interval) ......................

  • Page 4: List Of Tables

    IST OF ABLES Table 1 Specifications............................ 6 Table 2 Pressure Units with their range......................7 Table 3 Connection notations ........................11 Table 4 RS485 Connection notations ......................11 Table 5 Status of LED's ..........................15 Table 6 Configurable item ........................... 17 Table 7 MEI Current pressure data query ....................

  • Page 5: List Of Figures

    IST OF IGURES Figure 1 Front and back view of Round plate LM P RS485 data logger (Model No:63xx) ......8 Figure 2 Front and back view of Square plate LM P RS485 data logger ((Model No:64xx) ......9 Figure 3 Overall mechanical dimensions for Round plate data logger (Model No:63xx) ......9 Figure 4 Overall mechanical dimensions for Square plate data logger (Model No:64xx) ......

  • Page 6: Safety And The Environment

    ➢ At the end of its useful life, send the product to the separate collection for electric and electronics devices (observe local regulations) or return the product to G-Tek for disposal. LM P RS485 Data Logger...

  • Page 7: Specifications

    PECIFICATIONS 4.1 U ➢ The LM-P-PRO series of differential pressure data logger / indicator is very helpful in monitoring differential pressure especially for clean rooms. Large 0.56” LED digital display eliminates the human error in reading the data. The device is field programmable for most common of the eight measuring units.

  • Page 8: Technical Data

    4.3 T ECHNICAL Table 1 Specifications Specifications For LM-P RS485 data logger Model No LM-P RS485 data logger Display Details Display Digital, digits ultra-bright Numeric/semi alphabetic display Unit Indication, High and Low Alarm Indication, and Status Indicator storage on Indication Display Refresh rate* 1 reading / second Analog Input Details...

  • Page 9: Table 2 Pressure Units With Their Range

    Mechanical Dimensions and Mounting Housing Material ABS Plastic Mounting Orientation Mounting unit in vertical plane Size (L x W x D) mm 190 x 190 x 40 Panel Cutout (Diameter) mm Housing (Diameter) mm Weight 500 gms Approx. Table 2 Pressure Units with their range Unit Pressure Unit Unit list on Display...

  • Page 10: Unpacking And Inspection Of Data Logger

    NPACKING AND INSPECTION OF DATA LOGGER ➢ 6X Pressure data logger is dispatched in a recyclable, environment friendly package specially designed to give adequate protection during transit. ➢ If the outer box shows sign of damage, it should be opened immediately, and the device be examined.

  • Page 11: Overall Mechanical Dimensions For Round Plate Data Logger

    Figure 2 Front and back view of Square plate LM P RS485 data logger ((Model No:64xx) 5.1 O VERALL MECHANICAL DIMENSIONS FOR OUND PLATE DATA LOGGER Figure 3 Overall mechanical dimensions for Round plate data logger (Model No:63xx) LM P RS485 Data Logger Page.

  • Page 12: Overall Mechanical Dimensions For Square Plate Data Logger

    5.2 O VERALL MECHANICAL DIMENSIONS FOR QUARE PLATE DATA LOGGER Figure 4 Overall mechanical dimensions for Square plate data logger (Model No:64xx) Overall Dimensions (approx.) Round plate(63xx) Square plate(64xx) Dimensions (L x W x D) (mm) 40(D) 190 x 190 x 40 Panel Cutout (Diameter) mm Housing (Diameter) mm Diameter(mm)

  • Page 13: Electrical Installation

    LECTRICAL INSTALLATION 6.1 W IRING DIAGRAM FOR ATA LOGGER Sensor Communication Input Supply Figure 5 Wiring Diagram of Data logger Table 3 Connection notations Code Connector Name Pin Number of connectors Sensor Pressure sensor input DC supply 5 - 24 V DC supply adapter Table 4 RS485 Connection notations Code Connector Name...

  • Page 14: Rs485 Connection Diagram

    6.2 RS485 CONNECTION IAGRAM Figure 6 4-Wire RS485 Wiring diagram ➢ Multiple LM P RS485 devices can be connected with 4-wire RS485 is shown in figure 6. ➢ User can refer figure 7, if 4- wire to 2-wire RS485 conversion is required. Figure 7 2-Wire RS485 wiring diagram LM P RS485 Data Logger Page.

  • Page 15: Operation

    PERATION 7.1 F RONT PANEL OF ATA LOGGER After the proper wiring is done, Power ON the device. The heartbeat LED is blinking at every one second, The Display will show “gtec” message for few seconds and then reading of pressure input. The default pressure is in pascal, which is indicated by PA LED (unit1).

  • Page 16: Zero Offset

    ➢ There are four multifunction keys available on the front panel of the Device to configure the different parameters. The functions of these keys are described as below: This key is used to enter the main menu sequence as well as come out from the main menu.

  • Page 17: Status Of Led Indication

    7.3 S LED I TATUS OF NDICATION ➢ Table 5 provides brief description of LED status, which will be explained in detail in their individual section. Table 5 Status of LED's Status LED’S Description Heartbeat This LED shows Device Status. It will blink every 1 sec. (HB_LED) This LED shows Batch start indication, which means the Storage...

  • Page 18: Seven Segment Led Display

    7.4 S EVEN SEGMENT DISPLAY Figure 9 Seven segment LED display ➢ The seven segment LED display has 4 digits displaying capability which is shown in figure 9. -1999 9999 ➢ It can display the integer values in the range of ➢...

  • Page 19: Configuration

    ONFIGURATION Usage of Keys: To enter in the function menu for modification or to come out from the function menu/submenu. Up Key is used to increment the parameter value. It is also used to go to the next parameter/sub-menu. Down Key is used to decrement the parameter value. It is also used to go back to the last parameter/sub-menu.

  • Page 20: Main Menu Sequence

    6.2 M AIN MENU SEQUENCE ➢ Device can be Configured using front panel Keyboard, by entering the function key. User can enter the configuration as per their requirement. Figure 10 shows the main menu sequence. cpar Pressure at room temp, open condition (display updr parameter)

  • Page 21: Cpar (Configurable Parameters)

    6.3 CPAR (C ONFIGURABLE ARAMETERS ➢ To set parameters, follow the procedure shown in figure 11, by pressing appropriate key of device user can configure the parameters. The parameters are discussed subsequently in detail. cpar Aond aoft alsh alsl unit ofst Figure 11 Configurable parameters Note: -...

  • Page 22: Aond (Alarm On Delay)

    6.3.1 AOND (Alarm on delay) ➢ Alarm On time is user settable parameter, which will allow the sensors to settle in terms of output readings. For example, if output is expected to be stable in 10 minutes than device will generate continuous alarm condition after this time. ➢...

  • Page 23: Alsh (Alarm Set Point High)

    6.3.3 ALSH (Alarm set point high) ➢ In this parameter, we should set the value to alert us whenever device reading goes higher than the set value. The device will generate alarm if the reading goes out range and that value should be set from -500 to 500 pascal. ➢...

  • Page 24: Unit

    6.3.5 UNIT ➢ In this parameter, we should set the unit for the pressure input, by pressing appropriate key from the menu. ➢ The procedure for selecting the unit is shown in figure 16. unit Save Save mbar Save Save Mh2o Save Ih2o...

  • Page 25: Ofst (Offset)

    6.3.6 OFST (offset) ➢ Offset is the amount of deviation that occurs in the output due to calibration errors of the sensor. ➢ Thus, if there is a deviation in the output compared to the expected output, offset value should be set appropriately to null the effect of deviation. ➢...

  • Page 26: Rtc (Real Time Clock)

    6.4 RTC (R EAL TIME CLOCK ➢ RTC enables us to use a real-timeclock and calendar in Device. It is a feature that keeps track of the current time even when the device is turned off. The real-time clock is driven by a special battery that is not connected to the normal power supply.

  • Page 27: Updr (Update Display Refresh Rate)

    6.5 UPDR (U PDATE ISPLAY EFRESH ➢ Normally display refresh rate is 1 reading / second. In case the user wants to increase the display refresh rate, “UPDR” option is provided. ➢ To set the refresh rate follow the procedure shown in figure 20. updr 1 to 99 rfrt...

  • Page 28: Chps (Change Password)

    6.7 CHPS (C HANGE ASSWORD ➢ User can set password to enter in main menu from using change password feature. ➢ If PSEN Option is enabled by user, then user can change password by following the steps displayed in figure 22. ➢...

  • Page 29: Sint (Store Interval)

    **BSTS (B ATCH STOP ➢ To stop the batch, follow the procedure shown below by pressing the appropriate buttons given on the front panel of the Device. conf bsts stop Save Figure 24 BSTS (Batch stop) Note: RTC, Store interval and communication parameters will not be changed, in the running condition of the batch.

  • Page 30: Communication

    OMMUNICATION Password Authentication ➢ To enter to the communication menu, password is required, the device will allow the access of menu only after password authentication. Basically, device will ask for 4-digit password. If password is wrong, then the display will come out from password string and show pressure reading parameter.

  • Page 31: Comm (Communication Type)

    7.1 COMM (C OMMUNICATION ➢ In modbus serial communication , there are two modes - RTU and ASCII. The two modes are incompatible so a device configured for ASCII mode cannot communicate with one using RTU. ➢ Modbus ASCII messages require twice as many bytes to transmit the same content as a Modbus RTU message.

  • Page 32: Dadr (Device Address)

    7.3 DADR (D EVICE ADDRESS ➢ Address range of the devices that can be connected for MODBUS RS485 communication is from 1-247. ➢ To set device address follow the steps given below by pressing the appropriate buttons given on the front panel of the Device. ➢...

  • Page 33: Avge (Average Enable)

    7.5 AVGE (A VERAGE NABLE ➢ When the pressure input is fluctuating very much, the display reading will not be stable. To get the more stable reading, averaging of pressure input data is required. ➢ Averaging of pressure input data can be enabled/disabled by selecting YES/NO option in Average Enable menu as shown in figure 31.

  • Page 34: Modbus Rtu Communication

    RTU C ODBUS OMMUNICATION 8.1 M RTU P ODBUS ROTOCOL The Modbus RTU protocol uses a Master/Slave technique to communicate between devices. Any application that utilizes the Modbus RTU protocol will have a Modbus Master and at least one Modbus Slave. A Modbus Master is typically a host supervisory computer running software that will communicate with one or more Modbus Slave devices.

  • Page 35: Modbus Ascii Message Framing

    ASCII M ODBUS ESSAGE RAMING In ASCII mode, a message is delimited by specific characters as start of frames and end of frames. A message must start with a ‘colon’ ( : ) character (ASCII 3A hex) and it ends with a ‘carriage return –...

  • Page 36: Read Current Pressure Data In Rtu Mode

    8.5 R URRENT RESSURE ATA IN MODE To read the current pressure data from the LM P RS485 data logger, the function code is 0x03(hex). The register address for accessing the current pressure data is 0x0050 (hex) and number of registers required is 0x0002(hex). The Query request format for reading current pressure data is as below: Field Name Value (hex)

  • Page 37: Read Device Information In Rtu Mode

    EVICE NFORMATION IN MODE The function code reading the identification and additional information relative to physical and functional description of the device is 0x2B/0x0E(hex). The read device identification interface is modeled as an address space composed of a set of addressable data elements.

  • Page 38: Table 8 Mei Query Response

    Table 8 MEI Query response MEI type Device Function Read Object Query Query Response Id (hex) code Type Device Request (hex) (hex) ID (hex) (hex) 602B0E0101000003001 602B0E0100 Standard CDBF 1472D54656B20436F72 706F726174696F6E0107 363331322D323002065 630312E30307B2A2746 4B3DEF0D 602B0E0380 602B0E0303008001800 Extended CD7F 83031313930303031C2 Colored byte in response is the value of the registers requested. LM P RS485 Data Logger Page.

  • Page 39: Troubleshooting Guide

    • with remote software? Check the RS485 connection( twisted pair polarity ) and cable continuity . Note: if you face any other problem, please contact G-Tek Corporation Pvt. Ltd. LM P RS485 Data Logger Page. 37...

  • Page 40: Order Code

    RDER CODE Table 10 shows the Order code for the data logger: Table 10 Order code Data Sensor Type Pressure Communication Software Memory Logger Range Type Type Type 6 6X 0 Universal 0 No None None 0 No Input Pressure Memory 1 Temperature 1 ±...

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