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TPS WP-87 Manual

Multi channel logging digital thermometer
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Congratulations !
You
have
purchased
instrumentation. We trust that your new WP-87 will give you many years
of reliable service.
The WP-87 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-87. It also contains a full listing of all of the items
that you should have received with your WP-87. 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-87, 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
4 Jamberoo Street
Springwood, Brisbane,
Australia, 4127
Phone
: (07) 32 900 400
International : 61 7 32 900 400
Fax
: (07) 3808 4871
International : 61 7 3808 4871
E-mail
: tps@tps.com.au
Web Site
: www.tps.com.au
the
latest
in
Handheld
Temperature
Model WP-87
Multi Channel Logging
Digital Thermometer
Version
: 2.3
Date
: 30-Aug-2005
Author
: AB

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Summary of Contents for TPS WP-87

  • Page 1 Introduction The introduction has a diagram and explanation of the display and controls of the WP-87. It also contains a full listing of all of the items that you should have received with your WP-87. Please take the time to read this section, as it explains some of items that are mentioned in subsequent sections.

  • Page 2: Table Of Contents

    Page 2 Contents Introduction ..................4 WP-87 Display and Controls..............4 Unpacking Information ................7 Specifications ..................8 WP-87 Menu Structure..............9 Display Units ...................10 Number of Channels...............11 Calibration ..................12 Calibration Procedure for 1 Channel Operation........12 Calibration Notes.................. 13 Calibration Messages................13 Calibration Procedure for Multi Channel Operation ......
  • Page 3 .............. 38 Clock Function................39 15.1 Setting the Clock................39 15.2 Displaying or Hiding the Clock ............40 Initialising the WP-87..............41 Instrument firmware version number........41 Troubleshooting ................. 42 18.1 General Errors ................. 42 18.2 Temperature Troubleshooting............42 Warranty ..................

  • Page 4: Introduction

    Page 4 1. Introduction 1.1 WP-87 Display and Controls...
  • Page 5 (section 11), and displaying GLP information (section 9.1). key is also used to intialise the WP-87 at turn-on (section 16), and to toggle the Data Hold function on and off (section 8). Switches the WP-87 on and off.
  • Page 6 Page 6 32 character alpha-numeric display with user-friendly menu prompting system. Shows temperature channels simultaneously. Date and time can also be displayed.

  • Page 7: Unpacking Information

    Page 7 1.2 Unpacking Information Before using your new WP-87, please check that the following accessories have been included: Part No 1. WP-87 MultiLog Temperature Instrument....124110 2. Temperature Sensor..........121247 3. Battery charger ............130037 4. WP-87 Handbook ........... 130050 Optional sensors that may have been ordered with your WP-87: 1.

  • Page 8: Specifications

    Page 8 1.3 Specifications Ranges : -45.0 to 120.0 -49.0 to 230.0 228.0 to 383.0 Kelvin Resolution : 0.1 F and Kelvin Accuracy : ±0.2 C, ±0.4 F, ±0.2 Kelvin Memory : 2400 readings including date and time Automatic Logging : User-set for one reading every 1 to 90 seconds, 1 to 90 minutes, or 1 to 24 hours.

  • Page 9: Menu Structure

    Page 9 2. WP-87 Menu Structure A detailed breakdown of the menu system of the WP-87 is shown below. This diagram provides a quick reference for the menu functions available for the WP-87. → F1:Cal. → F1:Single Channel This menu is skipped when 1 channel mode is selected.

  • Page 10: Display Units

    Fahrenheit. Press to select readout in degrees Kelvin. 4. If the Notepad memory or Maximum/Minimum data have not yet been erased, then the WP-87 will ask you if you would like to erase them now… then Must First Erase...

  • Page 11: Number Of Channels

    3 channel operation. Press to select 4 channel operation. 4. If the Notepad memory or Maximum/Minimum data have not yet been erased, then the WP-87 will ask you if you would like to erase them now… then Must First Erase...

  • Page 12: Calibration

    Page 12 5. Calibration The WP-87 must be calibrated before use for the first time or if a temperature sensor is changed. The decimal point is replaced by a ∗ for any channels that are not calibrated. 5.1 Calibration Procedure for 1 Channel Operation This calibration procedure is only applicable when the WP-87 has been set to single channel readout mode.

  • Page 13: Calibration Notes

    WP-87 will display the following message and the offset value of the probe. For example… Calibrate OK A:Offset= 2. If a one point offset calibration has failed, the WP-87 will display the following message, and the failed offset value of the probe. Calibrate Failed A:Offset=...
  • Page 14 Calibrate OK Calibrate OK A:Offset= A:Span= 100.0% 4. If a span calibration has failed, the WP-87 will display the following message, and the failed span of the probe. For example… Calibrate Failed A:Span= 85.0% 5. If the temperature of the water bath used for span calibration is less...

  • Page 15: Calibration Procedure For Multi Channel Operation

    Page 15 5.4 Calibration Procedure for Multi Channel Operation This calibration procedure is applicable when the WP-87 has been set to 2, 3 or 4 channel readout modes. 1. Plug the temperature sensors into the relevant sockets… 2 Channel Mode...

  • Page 16: Calibration Notes

    5.5 Calibration Notes 1. Calibration information is retained in memory when the WP-87 is switched off, even when the battery is removed. This information can be recalled later using the GLP function (see section 9).
  • Page 17 Temperature probe is replaced or the meter is initialized, even if the readout units are changed. 3. If Maximum/Minimum mode is active, the WP-87 stops it for calibration. This is done to preserve genuine Maximum/Minimum data. Maximum/ Minimum mode must be restarted by the user after...

  • Page 18: Calibration Messages

    Calibrate OK A:Offset= 2. If a one point offset calibration has failed, the WP-87 will display the following message, and the failed offset value of the probe(s). The bottom line of the display shows each channel as it is calibrated (see example below).

  • Page 19: Difference Mode

    Page 19 6. Difference Mode The WP-87 can be set to display the difference between two channels. This function is available in 2, 3 or 4 channel operation. To display the difference between two channels, press the in normal display mode.

  • Page 20: Maximum/Minimum Mode

    Page 20 7. Maximum/Minimum Mode A Maximum/Minimum function is provided on the WP-87. The WP-87 stores maximum and minimum temperature separately for all active channels when this function is started. The Maximum/Minimum data can later be recalled on the display. The Maximum/Minimum data can also be printed using the RS232 interface.

  • Page 21: Recalling Maximum/Minimum Data

    31/12 12:00:00 31/12 12:10:00 If the WP-87 is in 2, 3 or 4 channel operation, then pressing the will sequentially scroll through each Maximum and Minimum value. key can be used to scroll back through previous data. Press the key to return to normal operation.

  • Page 22: Erasing Maximum/Minimum Data

    To erase the Maximum/Minimum data, press the following sequence of keys… → F3: → F2:Erase M I N As an added safeguard, the WP-87 will ask you if you are sure that you wish to erase the Maximum/Minimum data… Erase, You Sure? F1:Yes F2:No Press to erase all Maximum/Minimum data.

  • Page 23: Data Hold Function

    Page 23 8. Data Hold Function For hard to reach places, or rapidly changing environments, a Data Hold function is provided. This function freezes the temperature value of all currently displayed channels. If the clock is currently displayed, this is also frozen, although it is still running in the background.

  • Page 24: Good Laboratory Practices (Glp)

    Page 24 9. Good Laboratory Practices (GLP) The WP-87 keeps a record of the date and time of the last offset and span calibrations as part of GLP guidelines. GLP information for each channel is stored separately. 9.1 To recall GLP information on the display 1.
  • Page 25 Page 25 GLP display sequence… WP87 V1.0 R1234 ↓:More ↑:Back A:Offset= @ 31/12/97 12:00 A:Span= 100.0% @ 31/12/97 12:00 B:Offset= @ 31/12/97 12:00 B:Span= 100.0% @ 31/12/97 12:00 C:Offset= @ 31/12/97 12:00 C:Span= 100.0% @ 31/12/97 12:00 D:Offset= @ 31/12/97 12:00 D:Span= 100.0% @ 31/12/97 12:00...

  • Page 26: Failed Calibration

    Page 26 9.2 Failed Calibration If calibration has failed, the GLP function will reset the date and time to zero. The WP-87 still shows the results of the last successful calibration. For example… A:Offset= A:Span= 100.0% 00/00/00 00:00 00/00/00 00:00 Note that these calibration values are still used if further measurements are taken without recalibrating.

  • Page 27: Instrument Serial Number

    Page 27 9.4 Instrument Serial Number In case the serial number that is fitted to the rear of the WP-87 is removed or becomes illegible, it is also available on the WP-87 display. • The serial number is displayed at turn-on, WP87 V1.0 R1234...

  • Page 28: Notepad Function

    3. Repeat steps 1 & 2 as often as required. The maximum number of readings that can be stored in the Notepad is 2400. 10.2 Recalling Records from the Notepad 10.2.1 To recall records from the Notepad onto the WP-87 display → F2:Notepad). 1. Select the Notepad menu ( 2.

  • Page 29: Erasing Records From The Notepad

    To erase all records from the Notepad: → F2:Notepad). 1. Select the Notepad menu( 2. Select F2:Erase from the menu 3. The WP-87 now asks if you are sure that you wish to erase all records. Erase, You Sure? F1:Yes F2:No 4.

  • Page 30: Printing Records From The Notepad To The Rs232 Port

    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-87 are the same.

  • Page 31: Automatic Datalogging

    , then the WP-87 will automatically log a record every 5 seconds, once started (see step 7, below). 5. The WP-87 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 2400 readings).
  • Page 32 A: 25.0 c B: 25.0 Sending 12:00:00 The WP-87 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-87 will allow automatic logging to start.

  • Page 33: Rs232 Port

    Records can be sent directly to the RS232 port rather than stored in memory during automatic datalogging. See section 11 for details. 12.3 RS232 Configuration The WP-87 RS232 configuration is 8 bits, No Parity, 1 Stop Bit, XON/XOFF Protocol. 12.4 Communication and Statistical Software Communication between the WP-87 and a PC can be handled with any RS232 communication software.

  • Page 34: Commands

    Page 34 12.5 Commands The following commands can be sent from a PC to the WP-87. Note that <cr> denotes carriage return and <lf> denotes a line feed. Action Command Notes Request current ?D<cr> Returns the current Temperature data data, date and time from the WP-87.

  • Page 35: Data Format

    When requested by a PC with the ?D or ?R commands (section 12.5), the data is terminated with a carriage return. When it is sent by the WP-87 using the Print function (section 10.4) or the Instant Send function (section 12.2), the data ends with a carriage return...

  • Page 36: Glp Format

    Page 36 12.7 GLP Format GLP information is returned as up to 10 lines terminated by a carriage return. When using the “?G” command (section 12.5), the computer must respond with a character after receiving each line. For example… WP87 V1.0 R1234 @ 31/12/97 12:00 Temperature A: Offset= 1.0oC @ 31/12/97 12:00...

  • Page 37: Battery Saver Function

    Page 37 13. Battery Saver Function The WP-87 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 disabled for continuous use.

  • Page 38: Recharging The Battery

    Charger/RS232 socket. DO NOT plug into the Temperature sockets, as this will damage the WP-87. 2. Charge for approximately 8 hours for full capacity. The WP-87 has special circuitry to prevent overcharging, so the charger can be used continuously.

  • Page 39: Clock Function

    Notes 1. The WP-87 tests that a valid day of the month is entered. If an invalid date is entered (e.g. 31/11/98), the WP-87 beeps and displays the message “Invalid Date”. The meter then returns to the clock setting screen, so that the correct date can be entered.

  • Page 40: Displaying Or Hiding The Clock

    Page 40 15.2 Displaying or Hiding the Clock Depending on the number of currently selected channels, the date and time may be shown on the bottom line of the display, along with temperature data. Press the key to alternatively display the clock or any data that may occupy the bottom line.

  • Page 41: Initialising The Wp-87

    WP87s V1.0 R1234 MUST ReCalibrate MultiTemperature (The “s” after WP-87 is only shown when the RS232 serial port option is fitted) 4. The meter then displays one Temperature channel. Note that the decimal point has been replaced with a ∗, to indicate that the unit requires recalibration.

  • Page 42: Troubleshooting

    Page 42 18. Troubleshooting 18.1 General Errors Error Message Possible Causes Remedy Factory Cal. The EEPROM chip which The unit must be returned to Failed contains factory service. calibration information Temperature readings may Handbook has failed. be up to 10% incorrect. Memory Failed User calibration settings Re-calibrate the instrument...

  • Page 43: Warranty

    TPS Pty. Ltd. has a fine reputation for prompt and efficient service. In just a few days, our factory service engineers and technicians will examine and repair your equipment to your full satisfaction.
  • Page 44 Page 44 Please check that the following is enclosed with your equipment: • Your Name and daytime phone number. • Your company name, ORDER number, and return street address. • A description of the fault. (Please be SPECIFIC.) (Note: "Please Repair" does NOT describe a fault.) •...

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