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TPS 125190, Handbook, Page: 30 / 35

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Page 30

11. Battery Care and Maintenance 

The 

WP-89

 is fitted with a NiMH battery that is charged using the in-built 

controller to maximise life and operating time between charges. 

When shipped, the battery may be in a discharged state, in which case it will 
require at least 10 hours charging before use. Thereafter a full charge will be 
achieved in less than 5 hours of charging. The battery can be left on constant 
charge without damage but we recommend it be fully discharged at least once 
every 3 months. 

To fully discharge the battery, disable the Battery Saver function (see section 
11.1) and leave the unit switched on (without the charger connected). The 

WP-89

 

switches itself off when the battery is discharged. 

11.1 Battery Saver Function 

The 

WP-89

 is equipped with a battery saver function. If no button has been 

pressed for five minutes, the unit will shut off. This function can be disabled for 
continuous use. 

To enable or disable the battery saver function… 

1. Select Battery Saver Set-up (

 

→

→

 F4:Setup 

→

→

 F1:Batt

). 

2. The battery saver menu is now displayed. The bar graph indicates the 

approximate level of charge in the battery. For example… 

Batt save  ON 

↑↑↓↓

 

      F1:OK 

Use the 

 and 

 keys to alternatively select 

ON

 or 

OFF

. 

ON

 enables the battery saver function. The meter will switch itself off if 

no key has been pressed for five minutes. 

OFF

 disables the battery saver function for continuous use. 

4. Press 

 to save the new battery saver setting. 

Alternatively, press 

 to quit the battery saver menu and retain the current 

setting. 

Note 

The bar graph flashes when the battery volts drops below 5.60 volts. At 5.00 
volts the meter turns itself off. 

Summary of Contents for 125190

Page 1: ...ion has a diagram and explanation of the display and controls of the WP 89 It also contains a full listing of all of the items that you should have received with your WP 89 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 89 including operating modes c...

Page 2: ... information on the display 19 6 2 Instrument Serial Number 20 6 3 Additional GLP Features 20 7 Notepad Function 21 7 1 Recording Readings into the Notepad 21 7 2 Recalling Records from the Notepad 21 7 3 Erasing Records from the Notepad 22 7 4 Printing Records from the Notepad to the RS232 Port 23 8 Automatic Datalogging 24 8 1 Programming Automatic Datalogging 24 8 2 Starting and Stopping Automa...

Page 3: ... Function 31 12 1 Setting the Clock 31 12 2 Displaying or Hiding the Clock 31 13 Instrument firmware version number 32 14 Troubleshooting 32 14 1 General Errors 32 15 Optional Protective Probe Shroud 33 16 Warranty 34 ...

Page 4: ...Page 4 1 Introduction 1 1 WP 89 Display and Controls ...

Page 5: ...e and keys are used when calibrating section 5 setting the clock section 12 1 and setting the automatic logging period section 8 1 Switches the WP 89 on and off Display 32 character alpha numeric display with user friendly menu and prompting system Shows turbidity data plus date and time simultaneously Analogue Output BNC connector for analogue output Output is 0 to 2 V DC section 10 Probe Connect...

Page 6: ...rder by the metre 125196 4 Turbidity Standard Diluted 360NTU 1 Litre 125204 5 Turbidity Standard Primary 180NTU 200mL 125202 6 Turbidity Standard Primary 180NTU 1 Litre 125200 7 RS232 Serial Interface Option 125198 includes cables and communication software for DOS 8 WinTPS Communication software for Windows 130086 95 98 ME 9 Hard Carry Case 130059 10 Battery charger lead for 12V cigarette lighter...

Page 7: ...bject to probe performance The WP 89 will always select the range that provides the best resolution for the reading Repeatability 2 1 digit on all ranges Readout Modes Turbidity NTU Relative Turbidity Reference NTU Relative Turbidity REL Turbidity Relative Turbidity Reference Good Laboratory Practices All readings and calibration constants are stored together with date and time and can be recalled...

Page 8: ...ttery charge level Power 6V NiMH Rechargeable Battery Dimensions 187 x 110 x 51 mm Mass Instrument only Approx 500g Full Kit Approx 1 0kg Environment Temperature 0 to 45 o C Humidity 0 to 90 R H Case Rating IP65 with all connectors sealed with dust caps supplied or connections in place Analogue Output 0 to 2 Volts DC corresponding to preset measuring range Output impedance is 600 Ù nominal ...

Page 9: ...ystem of the WP 89 is shown below This diagram provides a quick reference for the menu functions available for the WP 89 F1 Cal F1 Probe F2 2pnt F3 3pnt F2 Ntpad F1 Rcall F2 Eras F3 Print F3 Mode F1 Abs F2 Rel F3 Avg F4 Ref F4 Setup F1 Batt F2 Clock F3 Analog F4 Log ...

Page 10: ...9 has the necessary probe information for accurate readings Two Turbidity probes are available for use with the WP 89 They are High Sensitivity Probe Part No 125192 High sensitivity turbidity probe measuring light scattered at 90O according to ISO7027 It is capable of measuring Turbidity from 0 to 3 000 NTU This probe can be submersed to a depth of 30m Standard cable length is 5m but other lengths...

Page 11: ...Units Below is an example of an absolute turbidity reading 360NTU 31 12 12 00 00 4 2 Selecting Relative Turbidity Readout 1 Switch the WP 89 ON 2 Select the Mode menu F3 Mode 3 Select F2 Rel to select relative turbidity readout The WP 89 will display the solution turbidity relative to a preset reference value in NTU Nephelometric Turbidity Units Below is an example of a relative turbidity reading ...

Page 12: ...and exit Alternatively press to quit and retain the current reference solution value To set the current solution as the reference value 5 Select the Reference solution menu F3 Mode F4 Ref 6 Select F2 Soln from the menu The reference solution setting screen is now displayed 360NTU SOLN F4 OK Allow the reading to stabilise then press to store the reading as the reference NTU value Alternatively pres...

Page 13: ... directions such as the base of a brook or weir the readings can fluctuate so rapidly that it is difficult to obtain a steady reading The 8 second averaging function is provided for just this situation To turn the 8 second averaging function ON or OFF 1 Select the Mode menu F3 Mode 2 Select F3 Avg from the menu The 8 second averaging selection menu is now displayed 8 sec avg is ON set F1 OK Use th...

Page 14: ...ements will be performed over a reasonably narrow range 1 Connect the probe to the sensor socket and switch the WP 89 ON 2 Place the probe into the first turbidity standard solution This must be a Zero NTU solution such as filtered distilled water DO NOT USE TAP WATER IMPORTANT Leave at least 25mm clearance from the bottom of the probe to the bottom of the beaker to avoid interference with the rea...

Page 15: ...robe is displayed For example 360 3NTU pnt2 2 F2 grab When the reading has stabilised press to GRAB the turbidity standard solution reading 6 The WP 89 will now allow you to enter the value of the second turbidity standard solution For example 360 3NTU pnt2 2 F2 OK set Press and to set the value of the turbidity standard solution Press to calibrate the second calibration point Alternatively press ...

Page 16: ...3 Point Calibration F1 Cal F3 3pnt The reading from the probe is now displayed For example 0 05NTU pnt1 3 F2 grab 4 When the reading has stabilised press to GRAB the Zero reading The WP 89 will confirm that the first calibration point has been successful 0 00NTU pnt1 3 F2 OK Press to proceed to the second calibration point Press to quit and retain the current calibration 5 Place the probe into a t...

Page 17: ...er than the second standard IMPORTANT Leave at least 25mm clearance from the bottom of the probe to the bottom of the beaker to avoid interference with the reading The reading from the probe is displayed For example 1803NTU pnt3 3 F2 grab When the reading has stabilised press to GRAB the turbidity standard solution reading 8 The WP 89 will now allow you to enter the value of the third turbidity st...

Page 18: ...Notes 1 The WP 89 will accept any turbidity standards that are entered during calibration so calibration cannot fail Ensure that your standards and procedures are correct to ensure that the WP 89 produces accurate measurements ...

Page 19: ...00 12 00 factory F2 Press to proceed to the next screen or to quit 5 The date and time of the last user calibration is then displayed For example 31 12 01 12 00 user F2 Press to proceed to the next screen or to quit 6 The WP 89 now offers the choice of using the factory or user calibration settings for turbidity measurements For example use USER cal set F2 Press or to toggle between using factory ...

Page 20: ...IDITY s n 12345 ver 1g where 12345 is the serial number The serial number of the probe is displayed when recalling the GLP information section 6 1 6 3 Additional GLP Features Another GLP requirement is to record the date and time of every reading The WP 89 does this for you when readings are recorded either with the Notepad function section 7 or the Automatic Logging function section 8 Each readin...

Page 21: ...the Notepad 3 Repeat steps 1 2 as often as required The maximum number of readings that can be stored in the Notepad is 100 7 2 Recalling Records from the Notepad To recall readings from the Notepad memory 1 Select the Notepad menu F2 NtPad 2 Select F1 Rcall from the menu 3 The latest record is now displayed for example 360NTU 001 F2 more 4 Press to move backward through the records Press to move ...

Page 22: ...otepad 1 Select the Notepad menu F2 Ntpad 2 Select F2 Eras from the menu 3 The WP 89 now asks if you are sure that you wish to erase all records ERASE YOU SURE F1 yes F2 no 4 Press to erase all records from the Notepad Press to quit without erasing the records from the Notepad ...

Page 23: ... cable for long term use if required 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 WP 89 are the same 4800 baud If necessary alter the baud rate of the printer or PC The WP 89 uses XON XOFF protocol Ensure that the printer is set accordingly 4 Select the Notepad menu F2 Ntpad 5 Select F3...

Page 24: ... set select whether this period is in minutes or seconds Press to alternatively select minutes or seconds as the units 5 Press when the desired logging period and units have been set Alternatively press to quit and retain the current setting 6 The WP 89 now offers the choice of logging into the instrument s memory or directly to the RS232 port log to notepad Set F1 OK Use the and keys to choose be...

Page 25: ...e AUTO LOGGING momentarily each time a reading is recorded When logging directly to the RS232 port the unit will beep each time a reading is sent 2 To stop automatic logging press in normal display mode The current Automatic Datalogging status is displayed for example When logging to Notepad When logging to RS232 port logging 10m 100 F4 stop F3 OK or logging 10m ser F4 stop F3 OK Press to stop aut...

Page 26: ...e RS232 port rather than stored in memory during automatic datalogging See section 8 for details 9 3 Communication and Statistical Software Communication between the WP 89 and a PC can be handled with any RS232 communication software WinTPS Communication software for Windows 95 98 and ME is optionally available Part No 130086 Once the data is saved to disk the next problem is how to use it The dat...

Page 27: ...ecords from the WP 89 memory The data ends with the message ENDS cr Data format B Erase logged data E cr Erases all logged records from the WP 89 memory Returns the message ERASED cr to confirm that the records have been erased Request status information S cr Returns the model name the Reference NTU value and number of logged readings in memory Data format D Request instrument information W cr Ret...

Page 28: ...inutes seconds format based on a 24 hour clock LLL is the log number Maximum 3 characters right justified DDDDDD is the Turbidity data 6 characters including sign and decimal point right justified NTU is the turbidity unit of measurement nephelometric turbidity units MMM is the measurement mode ABS for absolute data or REL for relative data 999 represents the total number of logged readings in mem...

Page 29: ... the range selected The available ranges are 20 200 2000 and 20000 NTU To select the range for the analogue output 1 Select the Setup menu F4 Setup 2 Select F3 Analog from the menu The current full scale value is now displayed for example 2V 20000NTU set F2 OK Use the and keys to select the full scale which will correspond to an output of 0 to 2 0V DC 3 Press to save the new setting Alternatively ...

Page 30: ...d 11 1 Battery Saver Function The WP 89 is equipped with a battery saver function If no button has been pressed for five minutes the unit will shut off This function can be disabled for continuous use To enable or disable the battery saver function 1 Select Battery Saver Set up F4 Setup F1 Batt 2 The battery saver menu is now displayed The bar graph indicates the approximate level of charge in the...

Page 31: ...th or day Press the and keys until the month or day is correct 5 Press to move to the year Press the and keys until the year is correct 6 Press to move to the hour Press the and keys until the hour is correct 7 Press to move the cursor to the minutes Press the and keys until the minutes are correct 8 Check that the date and time are correct Press to save the settings If any changes are needed pres...

Page 32: ...battery If this fails check the charger If charger OK replace the battery Meter will not turn on Battery is exhausted Recharge the battery If this fails check the charger If charger OK replace the battery Battery does not charge up when charger is connected 1 Faulty battery charger 2 Faulty battery 1 Connect the charger and switch the power on 2 Display the battery charge bar graph in the battery ...

Page 33: ...sure the end of the probe is against the internal stop at the other end of the shroud 2 IMPORTANT Connect the probe to the WP 89 Place probe and shroud assembly into a beaker of distilled water Leave at least 25mm clearance from the bottom of the probe to the bottom of the beaker Rotate the probe within the shroud so as to give the lowest possible reading 3 Fasten the M3 screws onto the probe end ...

Page 34: ...registration section returned to TPS Pty Ltd within 7 days No claims will be recognised without the original guarantee card or other proof of purchase This warranty becomes invalid if modifications or repairs are attempted by unauthorised persons or the serial number is missing Procedure For Service If you feel that this equipment is in need of repair please re read the manual Sometimes instrument...

Page 35: ...aired and returned to you by air express where possible For out of warranty units a repair cost will be calculated from parts and labour costs If payment is not received for the additional charges within 30 days or if you decline to have the equipment repaired the complete unit will be returned to you freight paid not repaired For full account customers the repair charges will be debited to your a...

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