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TPS WP-88 Manual

Turbidity-temp meter
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Congratulations !
You have purchased the latest in Handheld Turbidity instrumentation.
We trust that your new WP-88 will give you many years of reliable
service.
The WP-88 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 WP-88. It also contains a full listing of all of the items
that you should have received with your WP-88. 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
WP-88, 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.
Model WP-88
Turbidity-Temp Meter
Version:
2.0
Date:
01-Jul-2012

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Summary of Contents for TPS WP-88

  • Page 1 2. Introduction The introduction has a diagram and explanation of the display and controls of the WP-88. It also contains a full listing of all of the items that you should have received with your WP-88. Please take the time to read this section, as it explains some of items that are mentioned in subsequent sections.
  • Page 2 Page 2 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 : (07) 3808 4871 International : 61 7 3808 4871 Email : tps@tps.com.au...

  • Page 3: Table Of Contents

    Page 3 Contents Introduction ..................5 WP-88 Display and Controls ..............5 Unpacking Information ................7 Specifications ..................8 Fitting the Cable to the Sensor............. 10 Fitting the Protector to the Sensor ..........11 WP-88 Menu Structure ..............12 Turbidity Calibration ..............13 Entering the Turbidity Standard Value ..........
  • Page 4 Recharging the Battery ............. 32 Clock Function ................33 14.1 Setting the Clock ................33 14.2 Displaying or Hiding the Clock ............33 Initialising the WP-88 ..............34 Instrument firmware version number........34 Troubleshooting ................ 35 17.1 General Errors .................. 35 17.2 Turbidity Troubleshooting..............

  • Page 5: Introduction

    Page 5 1. Introduction 1.1 WP-88 Display and Controls...
  • Page 6 (section 14.1), setting the automatic logging period (section 10), and displaying GLP information (section 8.1). key is also used to initialise the WP-88 at turn-on. See section 15. Switches the WP-88 on and off.

  • Page 7: Unpacking Information

    Page 7 1.2 Unpacking Information Before using your new WP-88, please check that the following accessories have been included: Part No 1. WP-88 Turbidity Meter ............125188/1 125188/3 125188/5 2. Turbidity / Temperature Sensor ..........125186 3. Turbidity Sensor cable:...

  • Page 8: Specifications

    Page 8 1.3 Specifications Turbidity Ranges ........0 to 200.0 NTU 200 to 2000 NTU (Automatic range selection) Resolution ......... 0.1 NTU 1 NTU Accuracy ........±1 NTU Temperature Range ........-10.0 to 120.0 (sensor limit 0 to 60 oC) Resolution .........
  • Page 9 Page 9 Battery Saver ......On : Auto switch-off after 5 minutes Off : Continuous use Bar Graph display of battery charge level. Readout of battery voltage available for troubleshooting. Good Laboratory Practices ..Date, Time and Value of last Turbidity calibration are stored, and can be recalled or sent to the RS232 port at any time.

  • Page 10: Fitting The Cable To The Sensor

    Page 10 2. Fitting the Cable to the Sensor Push the cable plug into the socket in the rear of the Turbidity Sensor. Be sure to align the pins of the plug and socket before inserting. Screw on the retaining nut. Finger tighten only, as over tightening may cause damage to the sensor body.

  • Page 11: Fitting The Protector To The Sensor

    Page 11 3. Fitting the Protector to the Sensor The extra slide-on plastic protector (part no 125189) is an optional extra. To fit the protector… Slide the protector onto the Turbidity Sensor until the countersunk holes line up with the tapped holes in the sensor’s four feet.

  • Page 12: Menu Structure

    Page 12 4. WP-88 Menu Structure A detailed breakdown of the menu system of the WP-88 is shown below. This diagram provides a quick reference for the menu functions available for the WP-88. → F1:Cal. → F2:Notepad → F1:Recall F2:Erase F3:Print →...

  • Page 13: Turbidity Calibration

    5.1 Entering the Turbidity Standard Value In order to calibrate the WP-88 it is first necessary to enter the value of the Turbidity standard which is to be used for calibration. To enter the Turbidity standard value…...

  • Page 14: Calibration Procedure

    Page 14 5.2 Calibration Procedure 1. Plug the Turbidity sensor into the Turbidity socket. 2. Switch the meter on. 3. Rinse the Turbidity sensor in distilled water and blot dry. Zero Calibration 4. Place the Turbidity sensor into a sample of fresh Distilled water (NOT the rinse water used in step 3).
  • Page 15 10. The WP-88 is now calibrated for Turbidity and is ready for use in this mode. Ensure that the WP-88 is calibrated on the range in which it will be used.

  • Page 16: Turbidity Calibration Notes

    Lo Zero= 0.1NTU Hi Zero= 1.NTU 2. If a Zero calibration has failed, the WP-88 will display the following message, and the failed Zero value of the sensor. For example: Calibrate Fail Lo Zero= 110.NTU 3. If a Span calibration has been successfully performed, the WP-88 will display the following message, and the Span value of the sensor.

  • Page 17: Temperature Calibration

    Page 17 6. Temperature Calibration The Temperature reading from the Turbidity sensor is calibrated in the factory. No user calibration is therefore required.

  • Page 18: Operation Of The Wp-88

    3. Rinse the Turbidity sensor in distilled water and blot dry. 4. Place the Turbidity sensor into the unknown sample to be measured. The TPS Turbidity sensor is designed for in situ measurements, so the sensor can simply be immersed into the body of water to be measured.

  • Page 19: Good Laboratory Practices (Glp)

    Page 19 8. Good Laboratory Practices (GLP) The WP-88 keeps a record of the date and time of the last Zero and Span calibrations independently for Low and High Turbidity modes as part of GLP guidelines. 8.1 To recall GLP information on the display 1.

  • Page 20: Failed Calibration

    ENDS 8.4 Instrument Serial Number In case the serial number that is fitted to the rear of the WP-88 is removed or becomes illegible, it is also available on the WP-88 display. • The serial number is displayed at turn-on, for example…...

  • Page 21: Notepad Function

    3. Repeat steps 1 & 2 as often as required. The maximum number of readings that can be stored in the Notepad is 3600. 9.2 Recalling Records from the Notepad To recall records from the Notepad onto the WP-88 display: → → → → F2:Notepad). 1. Select the Notepad menu ( 2.

  • Page 22: Erasing Records From The Notepad

    2. Connect the other end of the RS232 cable to an RS232 Printer, or to COM1 or COM2 of a PC. 3. Ensure that the baud rate for the printer or PC and the WP-88 are the same. If necessary, alter the baud rate of the WP-88 (see section 11.1).

  • Page 23: Automatic Data Logging

    If the period was set to 05, followed by , then the WP-88 will automatically log a record every 5 seconds. 5. The WP-88 will ask if the records are to be logged into the Notepad, or sent directly to the RS232 port. Press to log records into the Notepad (maximum of 3600 readings).
  • Page 24 900.NTU 25.0ºc Sending 12:00:00 The WP-88 will beep each time a record is sent to the RS232 port. 8. Press to stop automatic logging. Notes: 1. The clock must be set before the WP-88 will allow automatic logging to start.

  • Page 25: Rs232 Port

    Press to instantly send readings to the RS232 port whenever the WP-88 is in normal run mode. This function is disabled if the automatic logging period is set to greater than zero (see section 10). Records can be sent directly to the RS232 port rather than stored in memory during automatic data logging.

  • Page 26: Commands

    Page 26 11.5 Commands The following commands can be sent from a PC to the WP-88. Note that <cr> denotes carriage return and <lf> denotes a line feed. Action Command Notes Request current ?D<cr> Returns current Turbidity, data Temperature, date and time from WP-88.

  • Page 27: Data Format

    Page 27 11.6 Data Format Data is returned to the RS232 Port by the WP-88 in the following format. A “•” shown anywhere in this section denotes one space. LLLL TTTTTTNTU ttttttoC dd/mm/yy hh:mm:ss is the Log Number. Maximum 4 characters, right LLLL justified.

  • Page 28: Glp Data Format

    Page 28 11.7 GLP Data Format GLP information is returned as 4 lines terminated by a carriage return. When using the “?G” command (section 11.5), the computer must respond with a character after receiving each line. For example… WP88 V2.0 T1234 Probe V1.1 T4321 @ 31/08/11 12:00 Turbidity Low Zero=...

  • Page 29: Importing Data Into Microsoft Excel

    Page 29 11.8 Importing Data into Microsoft Excel The following procedure details the method for importing a WP-88 text ® ® data file into Microsoft Excel and select File → Open ® ® Start Microsoft Excel In the “Files of type:” pull-down box, choose “Text Files (*prn; *.txt;...
  • Page 30 Press “Next >” after the column breaks have been inserted. 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 31: Battery Saver Function

    Page 31 12. Battery Saver Function The WP-88 is equipped with a battery saver function. If no button has been pressed for five minutes, the unit beeps and flashes the display for 20 seconds, and then shuts off. This function can be switched off for continuous use.

  • Page 32: Recharging The Battery

    5.60 volts. The battery should be recharged at this point. If the battery is not recharged, the WP-88 will switch itself off when the battery drops below 5.00 volts. To recharge the battery…...

  • Page 33: Clock Function

    Notes 1. The WP-88 does not test for a valid day of the month when setting the clock (eg: attempting to enter 31/02/11 is not corrected). 2. The WP-88 does test for leap years.

  • Page 34: Initialising The Wp-88

    16. Instrument firmware version number. If you need to phone or fax TPS for any further technical assistance, the version number of your WP-88 firmware may of benefit to us. The version number is displayed by the WP-88 at turn-on. In the example below, the...

  • Page 35: Troubleshooting

    Error Message Possible Causes Remedy Factory Cal. The EEPROM chip which The unit must be returned to Failed contains the factory TPS for service. calibration information then: has failed. Handbook Memory Failed User calibration settings Re-calibrate the instrument. Calibration Lost...

  • Page 36: Turbidity Troubleshooting

    Page 36 17.2 Turbidity Troubleshooting Symptom Possible Causes Remedy Turbidity cannot 1. Turbidity standard is Check Turbidity standards. be calibrated, or incorrect. Zero calibration must be readings performed in fresh Distilled inaccurate water. Check that the Turbidity standard has been correctly entered (section 5.1).

  • Page 37: 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.
  • Page 38 Page 38 Please check that the following is enclosed with your equipment: • A TPS ‘Service / Return Goods Form’ – see web link below: http://www.tps.com.au/Service/Service%20form_web.pdf • Your full name • Your company name • Your email address or fax number •...

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