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Hydrological Services Pty Ltd

MiniLog

D 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: [email protected]

Содержание ML1-420

Страница 1: ...iniLog 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 Ma...

Страница 2: ...tions BAUD EV RE CLEAR 12 4 1 3 Battery Voltage BV BVINT 13 4 1 4 Temperature TEMPC 13 4 1 5 Digital Channel Parameters CHID INC TDAY TOT TYPED UD 14 4 1 6 4 20mA Channel Parameters CHIDRV RVHR TXI U4...

Страница 3: ...ket Rain Gauge OR any device that requires a contact closure to be monitored it monitors the 4 20mA signal from a water level transducer an external 12V battery the internal battery and the ambient te...

Страница 4: ...ch corresponding to a height of rainfall depending on bucket capacity Bucket Capacity can be 0 2 mm 0 5 mm 1 0 mm 0 01 inch The logger unit accepts the contact closure and records the event as a time...

Страница 5: ...battery or RS232 handshake lines the power drawn from the internal battery is reduced to zero The digital input from the TBRG external 12V power and the 4 20mA transducer are connected to the interna...

Страница 6: ...asures the 4 20mA current that is passing through the sense resistor The logger only uses the internal battery for maintaining the time while there is no external power source present The ML1 420 draw...

Страница 7: ...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 Pin Connection ML1 420 Logger Signal Name DB9 Female PC Signal Direction...

Страница 8: ...nector on the logger is the communications port and is setup as a DCE This allows direct connection to a PC comm port using a DB9 male to DB9 female 1 to 1 cable The minimum connection is pins 2 3 4 a...

Страница 9: ...symbol and then the new parameter followed by the Enter key 3 2 1 Site Information The Site Information SI is a user definable 16 character string that allows each logger to have a unique location na...

Страница 10: ...00 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 t...

Страница 11: ...onse output RESET CR software RESET SI 16chars CR SIte name SLEEP N CR Set Sleep time mins ST CR STatus window T hh mm ss CR Time TA hh mm ss Time Adjust VER CR s w VERsion Battery Voltage and Tempera...

Страница 12: ...Syntax Error messages appear if the MiniLog does not understand what was typed When RE is off then there will be no response if the MiniLog does not understand what was typed It is useful to turn this...

Страница 13: ...executed as well as during a status window command ST BV CR Displays the internal and external battery voltages The battery voltage log interval can be set with the BVINT command from 1 to 999 mins Th...

Страница 14: ...INC 0 01 01 CR Defines say a TBRG bucket of 0 01 inches of water and one tip represents one logged event INC 0 2 01 CR Defines say a TBRG bucket of 0 2 mm of water and one tip represents one logged ev...

Страница 15: ...so the retrieved data has meaning UD CR Display the present units UD mm CR Set the units to mm 4 1 6 4 20mA Channel Parameters CHIDRV RVHR TXI U420 WL CHIDRV RVHR TXI TXR TYPE4 U420 WL The Channel ID...

Страница 16: ...Log may be used for measuring River Level Dam Level etc It is best to start this parameter with a capital letter for aesthetic reasons TYPE4 CR Display the MiniLog Type TYPE4 River CR Set the logger t...

Страница 17: ...y FMT dmy CR Set the date format to day month year FMT mdy CR Set the date format to month day year The Time T is displayed in 24 hour format separated by colons When entering the time and date all fi...

Страница 18: ...note that the CLR command clears all logged data rain river battery and temperature When the memory becomes full with Memory Wrap off the logger stops logging and tacks a Mem Full message onto the en...

Страница 19: ...oltages and temperature log DUBVT command unloads the internal and external battery voltage and temperature log from the start of the record to the most recent event stored On completion of successful...

Страница 20: ...e 1023 blocks available In this mode memory never becomes full and the most recent data is always available It is advisable that when changing the state of the Memory Wrap flag the existing logged dat...

Страница 21: ...e is used to either identify a specific logger or the location of the logger This is a variable string up to 16 characters long and can be any alphanumeric character The user can use this field for wh...

Страница 22: ...so cancelled The Sleep SLEEP command provides a timer so that a Bye is performed if there is no communications in the preset time The timer is set in minutes For example if sleep is set to 5 minutes a...

Страница 23: ...fall Units UD mm Event Output EV On Events Left 421763 River Channel ID CHIDRV 0000002 Memory Wrap MW Off River Log Start 22 01 11 Go to sleep after SLEEP 5 min River Last WL 3 726 Logging On Off LOG...

Страница 24: ...rt Header 09 35 23 24 3 11 0 Record Clear crlf 10 25 37 crlf Events time stamp 10 27 42 crlf 16 53 05 crlf Daily Summary 00 00 00 25 3 11 3 crlf 15 43 09 crlf 15 44 23 crlf 15 45 00 crlf 22 22 55 crlf...

Страница 25: ...Voltage Record DUBVI Station Set up Header Sydney MJ110001 crlf Logger Start Header 09 35 23 24 3 11 Record Clear crlf 10 00 00 3 55 crlf Events 11 00 00 3 55 crlf time internal BattV 12 00 00 3 55 cr...

Страница 26: ...t 11 00 00 24 7 crlf time Temperature 12 00 00 24 4 crlf 23 00 00 24 2 crlf Midnight Marker 00 00 00 25 3 11 crlf 00 00 00 23 1 crlf End of Record Marker Record End crlf Dump All Records DUALL Station...

Страница 27: ...Maximum recording rate 30 events per second 1 x 4 20mA Analog Input 16 bit A D sample 1 x external Battery Voltage measurement 10 bit A D sample Internal AA battery and temperature measurement Indica...

Страница 28: ...r to wake switch power to the 4 20mA transducer wait the required warm up time make a measurement record the measurement to the historical record transmit the measurement on the serial port if the EV...

Страница 29: ...ecords Program Memory for storage of the application firmware and Paramter Memory to store unique station parameters 5 9 System Clock The clock performance in terms of reliability and maintainable acc...

Страница 30: ...aud rate on the terminal emulation program and try again Try all 7 baud rates from 1200 to 57600 on the PC Check the Tx Rx RTS DTR and Gnd wiring to the logger from the computer Check that the termina...

Страница 31: ...a command I just get a Command Error reply Check that the command you are entering is a valid command by using the on line help Type CR and check the exact spelling of the command The external batter...

Страница 32: ...e modem and run a program such as WinComLog or Hyperterm Type AT CR and you should get an OK response Then set the following commands in the modem ATE0 Turn off character echo AT C0 DCD is always on A...

Страница 33: ...work provider and specifically ask them to Data Enable the card In Australia the Telstra contact phone number is 1300 131 816 Wavecom Fastrack Push the eject button shown to make the SIM card holder p...

Страница 34: ...twork CREG 0 5 Registered roaming Some SIM cards have PIN access So enter the PIN code as follows and then turn off the PIN requirement The PIN must be disabled as there is no way for the MiniLog to e...

Страница 35: ...to the terminal block Undo the connector from the GSM modem to the aerial Remove the 4 x bolts that secure the electronics mounting plate to the enclosure Remove the electronics mounting plate from th...

Страница 36: ...Issue 1 00 6 Apr 2011 The Intercel SAM GSM modem must be unbolted from the mounting plate as the SIM card fits to the rear of the modem Unbolt the modem Remove SIM card cover Insert the SIM card as s...

Страница 37: ...e C 1 and Figure C 2 show suggested methods of protecting equipment against transients The transient suppressors and the metal cabinets should also be connected to a solid earth at the site NOTE HS wa...

Страница 38: ...owered site 240V AC Mains Power Mains Surge Filter Mains Battery Charger 12V Battery Solar Panel DC Transient Barrier Metal Enclosure Earth Solar Battery Charger 12V Battery A E N E A N Equipment to b...

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