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TPS 90-FLMV Manual

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Congratulations !
The 90-FLMV is complete water quality logger in a single portable unit. It combines Dissolved
Oxygen, Conductivity, TDS, Salinity, pH, ORP and Temperature.
Despite its impressive list of features, the 90-FLMV is a breeze to operate. This manual has been
designed to help you get started, and also contains some handy application tips. If at any stage you
require assistance, please contact either your local TPS representative or the TPS factory in
Brisbane.
The manual is divided into the following sections:
1. Table of Contents
Each major section of the handbook is clearly listed. Sub-sections have also been included to
enable you to find the information you need at a glance.
2. Introduction
The introduction has a diagram and explanation of the display and controls of the 90-FLMV. It
also contains a full listing of all of the items that you should have received with unit. Please
take the time to read this section, as it explains some of items that are mentioned in subsequent
sections.
3. Main Section
The main section of the handbook provides complete details of the 90-FLMV, including
operating modes, calibration, troubleshooting, specifications, and warranty terms.
4. Appendices
Appendices containing background information and application notes are provided at the back
of this manual.
TPS Pty Ltd
ABN 30 009 773 371
Unit 6 / 253 Leitchs Road
Brendale, QLD,
Australia, 4500
Phone
: (07) 32.058.027
International : 61 7 32 058 027
Fax
: (07) 3808.4871
International : 61 7 3808 4871
Email
: tps@tps.com.au
Web
:
www.tps.com.au
90-FLMV
Dissolved Oxygen,
Conductivity, TDS, Salinity,
pH, ORP, Temperature
Logger
Date
: 31-Jan-2012
Version : 10.0

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Summary of Contents for TPS 90-FLMV

  • Page 1 Oxygen, Conductivity, TDS, Salinity, pH, ORP and Temperature. Despite its impressive list of features, the 90-FLMV is a breeze to operate. This manual has been designed to help you get started, and also contains some handy application tips. If at any stage you require assistance, please contact either your local TPS representative or the TPS factory in Brisbane.

  • Page 2: Table Of Contents

    Contents Introduction ............................. 4 90-FLMV Display and Controls ...................... 4 90-FLMV Rear Panel Connectors ....................4 Menu and Function Keys ......................... 5 One-touch Keys ..........................5 Numeric Keys ..........................5 Delete Key ............................5 ON and OFF Keys ..........................5 80 Character Display ........................
  • Page 3 Data Format ............................ 40 12.7 GLP Data Format ........................... 41 12.8 Importing Data into Microsoft Excel ..................... 42 Setting the Clock ..........................44 Initialising the 90-FLMV ........................45 Instrument firmware version number ..................... 45 Battery Saver Function ........................46 Moisture Protection ..........................

  • Page 4: Introduction

    1. Introduction 1.1 90-FLMV Display and Controls 1.2 90-FLMV Rear Panel Connectors...

  • Page 5: Menu And Function Keys

    Numeric Keypad. 1.7 ON and OFF Keys Press the relevant key to switch the 90-FLMV on and off as required. 1.8 80 Character Display 80 character alphanumeric display with user-friendly menu and context-sensitive help system.

  • Page 6: Unpacking Information

    1.9 Unpacking Information Before using your new 90-FLMV , please check that the following accessories have been included: Part No 5 metre bundle 130018/5: 90-FLMV including 5m cables & sensors..........130018/5 5 metre Option Includes Submersible pH, sensor, 5m cable............111224 ORP, Submersible, 5m......
  • Page 7 12V Car cigarette lighter lead..............130013 Clip lead for external 12V battery............130024 Carry case: Waterproof carry case................130058...

  • Page 8: Specifications

    1.10 Specifications Ranges Resolution Accuracy Oxygen 0 to 30.00 ppM 0.01 ppM ±0.02 ppM 0 to 300.0 % Sat % Sat ±0.2 % Saturation 0 to 60.0 % Gas % Gas ±0.1 % Gaseous k=0.1 cell 0 to 2.000 µS/cm 0.001 µS/cm ±0.5% full...
  • Page 9 Additional Conductivity/TDS/Salinity Specifications Temperature Compensation....Automatic, -5 to 70.0 Conductivity Sensor Span Range ..75 to 133 % Auto Standard Recognition ....Conductivity: 20uS/cm to 200mS/cm user selected TDS Factor ........0.40 to 1.00, user selected Additional pH Specifications Temperature Compensation....Automatic, -5 to 100.0 Ω...

  • Page 10: Flmv Menu Structure

    2. 90-FLMV Menu Structure A detailed breakdown of the menu system of the 90-FLMV is shown below. This diagram provides a quick reference for the menu functions available for the 90-FLMV . → → F1:Calibrate F1:Oxygen F2:Conductivity F3:pH F4:Temperature →...

  • Page 11: Dissolved Oxygen Mode

    A “ ∗ ” will not be removed from the display after a Zero Calibration. 5. Remove the sensor from the Zero solution, rinse well in distilled water and blot dry. The 90-FLMV will now prompt you to perform an AIR calibration.
  • Page 12 A “ ∗ ” in the display will be replaced by a decimal point after a successful air calibration. 3. The 90-FLMV is now calibrated and is ready for Dissolved Oxygen measurements. Rinse the Dissolved Oxygen sensor in distilled water and blot dry before placing it into unknown samples.

  • Page 13: Dissolved Oxygen Calibration Notes

    Zero=0.5% 2. If a Zero calibration has failed, the 90-FLMV will display the following message and the failed Zero value of the sensor. The unit will return to normal display mode with a “ ∗ ∗ ∗ ∗ ” in place of the decimal point in the Dissolved Oxygen reading.

  • Page 14: Dissolved Oxygen Stirrer

    3.5 Dissolved Oxygen Stirrer The 90-FLMV is equipped with a 4.5V DC output to power a stirrer for the Dissolved Oxygen sensor. This power output is suitable for the TPS submersible DO stirrer (part number 123306). 3.5.1 Enabling and Disabling the Dissolved Oxygen stirrer output →...

  • Page 15: Conductivity Mode

    1. Select Conductivity Mode ( 2. The 90-FLMV now proceeds to Conductivity measurement mode. Note that a “ ∗ ∗ ∗ ∗ ” is shown in place of the decimal point until a successful calibration has been performed (see section 4.4).

  • Page 16: Conductivity Calibration

    3. Let the sensor dry in air. → → → → F1:Calibrate → → → → F2:Conductivity ). 4. Select Conductivity Calibration ( 5. The 90-FLMV will recognise the low conductivity signal and attempt a Zero calibration. For example… 0*01uS 25.0...

  • Page 17: Conductivity Calibration Notes

    GLP function (see section 10). 4. The 90-FLMV displays the value of the standard to which it will attempt to calibrate. Ensure that the standard value displayed corresponds to the standard that you are using. Alter the Standards set-up if necessary (see section 4.2).

  • Page 18: Tds Mode

    5.2 Setting the Conductivity sensor k factor The 90-FLMV automatically recognises a k=10 sensor. The 90-FLMV does not automatically recognise k=0.1 or k=1 sensors. When a k=0.1 or k=1 sensor is used, the 90-FLMV must be set to the correct k factor before use.

  • Page 19: Salinity Mode

    6.2 Setting the Conductivity sensor k factor The 90-FLMV automatically recognises a k=10 sensor. The 90-FLMV does not automatically recognise k=0.1 or k=1 sensors. When a k=0.1 or k=1 sensor is used, the 90-FLMV must be set to the correct k factor before use.

  • Page 20: Ph Mode

    7. pH Mode 7.1 Selecting the pH Buffer Set The 90-FLMV can be programmed to automatically recognise any of the following buffer sets during pH calibration. All pH values listed below are at 25 1. pH4.01, pH7.00, pH9.18 2. pH4.01, pH7.00, pH10.01 3.

  • Page 21: Ph Calibration

    The current pH reading is shown on the left. Note the “ ∗ ∗ ∗ ∗ ”, indicating that pH is currently not calibrated. Wait for this reading to stabilise before attempting to calibrate the 90-FLMV . The buffer that the 90-FLMV has attempted to recognise is also displayed with the correct value at the current temperature.

  • Page 22: Ph Calibration Notes

    Otherwise, enter an alternative buffer using the Numeric Keypad, and then press 10. The 90-FLMV is now pH calibrated and is ready for use in this mode. Discard the used samples of buffer. Rinse the pH and Conductivity or Temperature sensors in distilled water and blot them dry before placing them into unknown samples.

  • Page 23: Ph Calibration Messages

    Asymmetry Calibration Successful +0.10pH Asym 100% Slope 2. If a 1-point calibration has failed, the 90-FLMV will display the following message and the failed asymmetry value of the sensor. Calibrate Failed, 1.2pH Asymmetry Repeat Cal. or Initialise Calibration 3.

  • Page 24: Orp Mode

    8. ORP Mode 8.1 ORP Measurements The millivolt section of the 90-FLMV is factory calibrated. There is no user-calibration facility for this mode. Temperature compensation is not applicable in ORP mode. Simply plug the Redox sensor into the mV socket. Ensure that the platinum tip and reference...

  • Page 25: Temperature Mode

    The 90-FLMV temperature is now calibrated. The following screen is displayed… Calibration OK, Offset=0.1 The 90-FLMV will now return to normal measurement mode and the “ ∗ ∗ ∗ ∗ ” in the Temperature readout will have been replaced by a decimal point.

  • Page 26: Temperature Calibration Notes

    The bottom line appears after 3 seconds. Calibration OK, Offset=0.1 2. If the temperature calibration has failed, the 90-FLMV will display the following message and the failed offset value of the sensor. Calibration Failed, Offset=16.0...

  • Page 27: Good Laboratory Practices (Glp)

    10. Good Laboratory Practices (GLP) The 90-FLMV keeps a record of the date and time of the last calibrations for all parameters as part of GLP guidelines. 10.1 To recall GLP information on the display 1. Switch the meter on.

  • Page 28: Failed Calibration

    RS232 port. 1. Switch the meter on. 2. Connect one end of the RS232 cable to the Charger socket of the 90-FLMV . The battery charger, optional battery adaptor, or optional solar panel may be connected to the in-line socket on the RS232 cable, if required.

  • Page 29: Instrument Serial Number

    10.4 Instrument Serial Number In case the serial number that is fitted to the rear of the 90-FLMV is removed or becomes illegible, it is also available on the 90-FLMV display. 1. The serial number is displayed at turn-on, for example…...

  • Page 30: Data Logging

    The Logger memory must be erased before changing the A & Data Input setting. To set the A & B Data Input function… → → → → F4:Setup → → → → F3:Set AB ). The 90-FLMV will 1. Select the A & B setup menu ( prompt you to erase the Logger before proceeding, if any data is stored in memory.
  • Page 31 1. Alternatively, press to quit without recording the reading. 3. The 90-FLMV now proceeds to the B data entry screen… Data Recorded, Now Input B or Press Menu Enter Data B:0 Use the numeric keypad to key in up to four characters for the “B” data item. The decimal point is available.
  • Page 32 1. Alternatively, press to quit without recording the reading. 3. The 90-FLMV now proceeds to the A data entry screen… Enter Data A:0 Data Recorded, Now Input A or Press Menu Use the numeric keypad to key in up to four characters for the “A” data item. The decimal point is available.

  • Page 33: Automatic Data Logging

    11.3 Automatic Data logging The 90-FLMV can automatically log records into the Logger. There are two automatic data logging modes to choose from… 1. Rate Per Day • Logs from 1 to 288 readings per day, evenly spaced throughout each 24 hour period.
  • Page 34 Select F4:Start from the menu. 2. Switch the 90-FLMV OFF. This step is essential, as the Rate per Day data logging is only enabled when the 90-FLMV is switched OFF. Stopping Rate per Day data logging is a one step process…...
  • Page 35 3. The 90-FLMV now prompts you to enter the sampling period in seconds. The current sampling period is displayed… Enter Sampling Period (secs) : 5 Use the Numeric Keypad to set the 90-FLMV to log a reading every 1 to 300 seconds. Press to save the new sampling period and move to setting the duration.

  • Page 36: Recalling Readings From The Logger

    11.4 Recalling Readings from the Logger To recall records from the Logger onto the 90-FLMV display… → → → → F3:Logger ) 1. Select the Logger menu ( 2. Select F1:Recall from the menu. Record number 1 is now displayed.

  • Page 37: Erasing Records From The Logger

    2. Connect the other end of the RS232 cable to an RS232 Printer, or to the COM1 or COM2 ports of a PC. 3. Ensure that the baud rate for the printer or PC and the 90-FLMV are the same. If necessary, alter the baud rate of the 90-FLMV (see section 12.1).

  • Page 38: Rs232 Port

    A TPS communication software package for Windows is optionally available (part number 130086). Once the data is saved to disk, the next problem is how to use it. The data sent by the 90-FLMV is ® ® formatted in fixed-width columns that can be imported by programs such as Microsoft Excel ®...
  • Page 39 (see section 12.7 for data format and hand-shaking). Enable Rate per Day or Time of ?J<cr> Starts automatic data logging when the 90-FLMV is set up for Day automatic data logging Rate per Day or Time of Day automatic data logging (see section 11.3.1).

  • Page 40: Data Format

    12.6 Data Format Data is returned to the RS232 Port by the 90-FLMV in the following format. Please note that a “ • ” shown anywhere in this section denotes one space. dd/mm/yyyy•hh:mm:ss•LLLL•DDDDDuuu•CCCCCCCuuu•PPPPPuu•MMMMMuu•TTTTTuuLaaaaA•bbbbB where…. dd/mm/yyyy is the date, month and year data.

  • Page 41: Glp Data Format

    2. When requested by a PC with the ?D or ?R commands (section 12.5), the data is terminated with a carriage return. 3. When the data is sent by the 90-FLMV using the Print function (section 11.6) or the Instant Send function (section 12.2), the data ends with a carriage return and a line feed.

  • Page 42: Importing Data Into Microsoft Excel

    12.8 Importing Data into Microsoft Excel ® The following procedure details the method for importing a 90-FLMV text data file into Microsoft ® Excel and select File → Open ® ® 1. Start Microsoft Excel 2. In the “Files of type:” pull-down box, choose “Text Files (*prn; *.txt; *.csv)”.
  • Page 43 Press “Next >” after all the column breaks have been inserted. 6. Simply press “Finish” at step 3 of the Text Import Wizard. TPS recommends that the data format for each column be set once the data is in spreadsheet format.

  • Page 44: Setting The Clock

    2. The 90-FLMV tests that a valid time of the day is entered. If an invalid time is entered (eg. 25:00), the 90-FLMV displays the message “ Invalid Time ”, then returns to the time setting screen so that the correct time can be entered.

  • Page 45: Initialising The 90-Flmv

    14. Initialising the 90-FLMV If the calibration settings of the 90-FLMV exceed the allowable limits, the unit may need to be initialised to factory default values. This action may be required if a sensor is replaced or if the memory is corrupted.

  • Page 46: Battery Saver Function

    16. Battery Saver Function The 90-FLMV is equipped with a battery saver function. If no button has been pressed for 5 minutes or 1 hour , the unit beeps and flashes the display for 20 seconds and then shuts off. This function can also be switched off for continuous use.

  • Page 47: Moisture Protection

    17. Moisture Protection 17.1 Silica Gel Pack Due to the size of the 90-FLMV enclosure, it tends to expand in hot environments and contract in cold environments. This process can cause moist air to be drawn into the enclosure, which would then cause corrosion damage to the circuit.

  • Page 48: Troubleshooting

    18. Troubleshooting 18.1 General Errors Error Message Possible Causes Remedy Factory Calibration The EEPROM chip which The unit must be returned to TPS for Data Failure contains the factory calibration service. information has failed. EEPROM Write User calibration settings have Switch the meter OFF and switch back ON.

  • Page 49: Dissolved Oxygen Troubleshooting

    5% Ammonia poisoning. solution for 10 minutes. If cleaning is unsuccessful, return the sensor to the TPS factory for cleaning and service. Tarnished or scratched Gold Sensor been chemically Return to the TPS factory for cleaning and cathode.

  • Page 50: Conductivity/Tds/Salinity Troubleshooting

    Unit fails to calibrate, even Calibration settings outside of Check that the k factor is set correctly when with new sensor. allowable limits due to previous not using a TPS k=10 sensor. failed calibration. Initialise the unit. See section 14. Unit attempts Span Sensor has Zero error.

  • Page 51: Ph And Orp Troubleshooting

    18.4 pH and ORP Troubleshooting Symptom Possible Causes Remedy Unit fails to calibrate, even Calibration settings outside of Switch the unit OFF and then back ON with new pH sensor. allowable limits due to previous again and repeat calibration. failed calibration. Initialise the unit.

  • Page 52: Temperature Troubleshooting

    Return Conductivity or Temperature sensor Temperature sensor, for repair, or replace sensor. whichever is being used. Displays manual 1. Faulty instrument socket. Return the instrument to the TPS factory for temperature setting (eg. service. 25.0 cM)when 2. Faulty Conductivity or...

  • Page 53: Appendices

    19. Appendices 19.1 Dissolved Oxygen 19.1.1 Dissolved Oxygen Sensor Fundamentals The sensor used is the amperometric type of Clark Sensor and is suitable for the measurement of oxygen pressures in the range 0 to 100 cm of mercury. While the sensor actually reads partial pressure of oxygen, the circuit is calibrated to be read in percentage saturation or parts per million (Milligrams/litre).
  • Page 54 (a) Membrane correction is achieved AUTOMATICALLY ; (b) To provide the mass units (ppM) readout (so popular due to the Winkler process used in the past), the 90-FLMV Meter has Solubility Correction via an additional temperature element in the sensor ;...
  • Page 55 19.1.6 Equilibrium Conditions Whilst Saline Water has a lower ppM than does Fresh Water, it does not mean it necessarily has less biologically available oxygen. Both have 100% Saturation (presuming no Chemical Oxygen Demand (C.O.D.), Biological Oxygen Demand (B.O.D.), etc.) because both are in partial pressure equilibrium with air.

  • Page 56: Conductivity/Tds/Salinity

    19.2.1 Care, Cleaning and Maintenance of Conductivity Sensors Care of Conductivity sensors The conductivity section of the sensor supplied with your 90-FLMV consists of two platinum plates that are plated with a layer of “platinum-black”. This is quite a soft layer and is required for stable, accurate measurements.
  • Page 57 Replatinising Conductivity Sensors There are several ways to replatinise Conductivity sensors. 1. The simplest way is to return the sensor to the TPS factory. We can fully clean the sensor, replatinise it and test all aspects of its performance. 2. An automatic replatiniser is available from TPS, along with replatinising solution. This will plate the sensors for the right amount of time at the correct current.
  • Page 58 19.3 pH pH sensors are generally combination sensors, where the pH sensing membrane and the reference system are contained in a single body. The sensing membrane is the round or spear shaped bulb at the tip of the sensor. This produces a voltage that changes with the pH of the Solution. This voltage is measured with respect to the reference section.
  • Page 59 19.3.3 Temperature Compensation The slope of a pH sensor is affected by temperature. This effect is compensated for either by using an Automatic Temperature Compensation (ATC) sensor. Figure 19-3 shows the slope of a pH sensor at various temperatures. pH Electrode Response, as a Function of Temperature Electrode Potential (mV) at 0 oC (54mV/pH)

  • Page 60: Warranty

    Please read service details on our ‘Service’ web page first: http://www.tps.com.au/service.htm TPS Pty Ltd has a reputation for prompt and efficient service. If you feel that this equipment is in need of repair, please re-read the manual. Sometimes, instruments are received for "repair" in perfect working order.

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