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HYDROLOGICAL SERVICES ML1-420 Operation Manual

Digital + 4-20ma + battv + tempc data logger
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Hydrological Services Pty Ltd
MiniLog
Digital + 4-20mA + BattV + TempC Data Logger
Model : ML1-420
Operation Manual
HYDROLOGICAL SERVICES Pty Ltd
48-50 Scrivener Street
Liverpool NSW 2170
Australia
Ph. 61 2 9601 2022 Fax. 61 2 9602 6971
E-Mail: sales@hydrologicalservices.com
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  • Page 1 Hydrological Services Pty Ltd MiniLog Digital + 4-20mA + BattV + TempC Data Logger Model : ML1-420 Operation Manual HYDROLOGICAL SERVICES Pty Ltd 48-50 Scrivener Street Liverpool NSW 2170 Australia Ph. 61 2 9601 2022 Fax. 61 2 9602 6971...

  • Page 2: Table Of Contents

    Fault Finding ......................30   Appendix A. Interfacing to a Modem .................. 32   Appendix B. Installing a RainTrak System ................ 35   Appendix C. Surge Protection ....................37   Data Logger Model ML1-420 ML1-420 100-2 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 3: Introduction

    Hydrological Services Pty Ltd Introduction The Hydrological Services MiniLog Data Logger ML1-420 has been designed using surface mount technology to provide a very small, ultra low power and reliable data logger that can be used in harsh environments for extended periods. Flash memory technology has not only...

  • Page 4: Product Overview

    Hydrological Services Pty Ltd Product Overview Overview The Hydrological Services MiniLog Data Logger is easily installed within many products due to its small size. Its primary purpose is to count contact closures and measure and log data from a 4-20mA sensor / transducer.

  • Page 5: Installation

    4. Pull on the wire to make sure it is secure. Battery ML1-420 Rainfall TBRG 4-20mA WL3100 Water Level Submersible “OR” 4-20mA “ML1-420 Typical Application” Pressure Transducer Model: PS98i AD375MA Data Logger Model ML1-420 ML1-420 100-5 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 6: Hardware Connections

    (Note that the PCB solder link LK1 is an option that is left open circuit when the ML1-420 is supplied from the factory.) (Also Note: In the first option (shown on the left), an extra tip will be generated when the DB9 connector is plugged into a PC, unless pin 9 is clipped on the DB9 lead.)

  • Page 7: 4-20Ma Transducer Input

    ! Connection of 4-20mA Transducer 3.1.4 Communications The pinout of the DB9 female connector on the front of the ML1-420 logger is as follows :- ML1-420 Logger Signal Name PC Signal PC Signal Connection...
  • Page 8 ML1-420 – which prevents power drain from the internal battery while communications is in progress. 3. A solder link LK1 on the ML1-420 PCB allows the digital input from the TBRG to be connected through pin 9 of the DB9F connector. See section 3.1.1 for more details.

  • Page 9: Setup And Configuring The Logger

    Hydrological Services Pty Ltd Setup and Configuring the Logger Once the ML1-420 logger has been connected to a computer, the parameters can be setup using WinComLog or any ‘dumb’ terminal emulation program. (NOTE: If a third party application is used, the handshake signals DTR and RTS should be forced high to enable the MinLog to have power.) If using a third party program, it should be set for the appropriate...

  • Page 10: Communications

    2400, 4800, 9600, 19200, 38400 and 57600 baud with 8 data bits, no parity and 1 stop bit. If initially you can’t establish communications with the ML1-420, try each of the 7 baud rates, in case it has been changed from the default rate of 9600.

  • Page 11: Operation

    Operation Commands / Syntax The following sections give detailed information on each of the MiniLog ML1-420 commands. Simply type the command and then press enter to view the parameter. To change a parameter, the password must first be entered, and then type the command followed by =, then the new parameter followed by Enter.

  • Page 12: Communications (Baud, Ev, Re, Clear)

    ~ = 0.5 second pause and ^ = CTL character (Eg ^M = carriage return) The format of each sequence is CLEAR1 = Command Sent / Expected Reply / Timeout Data Logger Model ML1-420 ML1-420 100-12 Issue 1.00 6 Apr, 2011...

  • Page 13: Battery Voltage (Bv, Bvint)

    The temperature log interval is be set with the (BVINT) command above, from 1 to 999 mins. The internal battery, external battery and temperature are logged at this interval. The logged temperature can be retrieved using the DUTMP, DUBVT and DUALL commands. Data Logger Model ML1-420 ML1-420 100-13 Issue 1.00 6 Apr, 2011...

  • Page 14: Digital Channel Parameters (Chid, Inc, Tday, Tot, Typed, Ud)

    The “Total Today” (TDAY) command allows the Total number, of whatever is being counted, to be displayed. This is the total today since midnight. TDAY<CR> Displays the total of what is being counted since midnight. Data Logger Model ML1-420 ML1-420 100-14 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 15: 4-20Ma Channel Parameters (Chidrv, Rvhr, Txi

    TXI<CR> Displays the present Transducer Interval. TXI=015/07<CR> Set to measure the transducer every 15 minutes, and leave the Data Logger Model ML1-420 ML1-420 100-15 Issue 1.00 6 Apr, 2011 © Copyright...
  • Page 16 The “Transducer Range” (TXR) is a parameter that defines the 20mA transducer depth. Zero depth is usually represented by 4mA and maximum depth is represented by 20mA. This parameter is determined by the particular transducer connected to the ML1-420. TXR<CR>...

  • Page 17: Date/Time Parameters (D, Fmt, T, Ta)

    2. Wait at least 12 hours (the longer the time period the better the accuracy – this could be over many months.) 3. Set the time again using the TA=17:13:30<CR> command Data Logger Model ML1-420 ML1-420 100-17 Issue 1.00 6 Apr, 2011...

  • Page 18: Dump Log Records (Dur, Durv

    (DUR, DURV, ….DUALL, CLR, CLRV, MW, LOG) (DUR, DURV, DUBVI, DUBVE, DUBVT, DUTMP, DUALL, CLR, CLRV, MW, LOG) The MiniLog ML1-420 logged data is stored in the on-board flash memory. The “Dump Rain log” (DUR) command, unloads the historical records from the start of the record to the most recent event stored.
  • Page 19 (CLR) – please note that the CLR command clears all logged data, rain, river, battery and temperature!! The log is dumped in ascii Data Logger Model ML1-420 ML1-420 100-19 Issue 1.00 6 Apr, 2011...
  • Page 20 CLR<CR> Erase complete log record. *** This will clear the Rain, River, Battery and TempC Logs *** : Are you sure ? (Y/N) Y Data Logger Model ML1-420 ML1-420 100-20 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 21: Miscellaneous (Id, Si, Passwd, Bye, Sleep, Reset, Ver)

    That is, the user does not have to enter the password before they change parameters or clear memory. For example : PASSWD=BOMM<CR> Enable access. PASSWD=****<CR> Password function disabled. Data Logger Model ML1-420 ML1-420 100-21 Issue 1.00 6 Apr, 2011 © Copyright...
  • Page 22 The “Version”(VER) command allows the MiniLog firmware version to be displayed. VER<CR> Displays the MiniLog firmware version and date. Data Logger Model ML1-420 ML1-420 100-22 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 23: Status Window (St)

    Note that the data in the Status Window is grouped to describe each area of the ML1-20, that is “general configuration” on the left, “digital input configuration” at the top right, “4-20mA configuration” at the centre right, and “battery / temperature configuration” at the lower right. Data Logger Model ML1-420 ML1-420 100-23 Issue 1.00 6 Apr, 2011...

  • Page 24: Data Output Format

    Data Output Format 4.2.1 Dump Log Record The following data represents the historical log record as output from a MiniLog ML1-420 data logger. The example below represents a data record as presented to a computer after invoking a Dump Log Record command (DUR). Each parameter is separated by a ‘space’...
  • Page 25 12:00:00 12.12< crlf > 23:00:00 12.11< crlf >  Midnight Marker 00:00:00 25/3/11 < crlf > 00:00:00 12.10 <crlf>  End of Record Marker Record End< crlf > Data Logger Model ML1-420 ML1-420 100-25 Issue 1.00 6 Apr, 2011 © Copyright...
  • Page 26 0 = Housekeeping 1 = Rainfall / Digital input 2 = River / 4-20mA 3 = Internal Battery Voltage 4 = External Battery Voltage 5 = Temperature Data Logger Model ML1-420 ML1-420 100-26 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 27: Specification

    70mm x 80mm x 40mm (W x H x D) (includes gland) Weight 200 grams Environmental -40C to + 70C at 95% RH Non Condensing Aluminium waterproof housing IP67 Data Logger Model ML1-420 ML1-420 100-27 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 28: Led Indicator

    Hydrological Services Pty Ltd LED Indicator The LED indicator on the MiniLog ML1-420 will flash once a second. This heartbeat indicates that the MiniLog is alive and well. (Note that the flash is only 1 mS in duration and has an insignificant contribution to the battery life.) When an external event or communication occurs, the LED flashes much longer.
  • Page 29 5.10 Logger Identification Each logger has a six digit unique identification number hard coded and accessible as a read only system parameter via software. Data Logger Model ML1-420 ML1-420 100-29 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 30: Fault Finding

    Hydrological Services Pty Ltd Fault Finding This fault finding guide should be used by the ML1-420 user before they consult the manufacturer to assist with specific problems. LED does not flash once a second.  If you have attempted to load new software / firmware, then attempt the procedure again.
  • Page 31 I don’t have an external battery, but it is reading 5.84V .  You are seeing the voltage sucked from the RS232 port – this is normal. Data Logger Model ML1-420 ML1-420 100-31 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 32: Appendix A. Interfacing To A Modem

    Some modems require a specific sequence to hangup correctly. Enter these sequences into the CLEAR1/2/3/4 parameters and use the BYE command and then the “Hangup” button to close the communication session. Data Logger Model ML1-420 ML1-420 100-32 Issue 1.00 6 Apr, 2011...
  • Page 33 => Not registered with network (No SIM card, no signal, no PIN) LED Slow Flash => Registered OK but not connected LED Fast Flash => Connected and communicating Data Logger Model ML1-420 ML1-420 100-33 Issue 1.00 6 Apr, 2011 © Copyright...
  • Page 34 When the communications session is complete, press the “Hangup” button. (Again +++ will be sent to the modem to get its attention, and then ATH to perform the hangup) Data Logger Model ML1-420 ML1-420 100-34 Issue 1.00 6 Apr, 2011...

  • Page 35: Appendix B. Installing A Raintrak System

    Hydrological Services Pty Ltd Appendix B. Installing a RainTrak System The Hydrological Services “RainTrak” consists of a MiniLog, a Intercel SAM GSM modem, a solar panel, and mounting hardware for a Tipping bucket raingauge. (The user must provide their own 12V, 7Ah battery)
  • Page 36 Unbolt the modem. Remove SIM card cover. Insert the SIM card as shown. Replace the SIM card cover, and bolt the modem back onto the mounting plate. Data Logger Model ML1-420 ML1-420 100-36 Issue 1.00 6 Apr, 2011 © Copyright...

  • Page 37: Appendix C. Surge Protection

    Hydrological Services Pty Ltd Appendix C. Surge Protection The ML1-420 has a limited amount of surge protection on the inputs and outputs. If the equipment is installed in a lightning prone area we recommend installing additional surge protection on cables entering the ML1-420 from outside the housing cabinet.
  • Page 38 Equip Side Equip Side Mains Solar Battery Battery Charger Charger Battery Battery Equipment to be Equipment to be powered powered Fig C.2 “Typical solar or mains powered site” Data Logger Model ML1-420 ML1-420 100-38 Issue 1.00 6 Apr, 2011 © Copyright...

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