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Page 1

Contents

Introduction .............................................................................................. 2

1.1

901-C Display and Controls .............................................................................. 2

1.2

901-C Rear Panel Connectors ............................................................................ 2

1.3

901-C Front Panel ............................................................................................. 3

1.4

Unpacking Information ..................................................................................... 4

1.5

Specifications.................................................................................................... 5

Operating Modes...................................................................................... 8

Conductivity Calibration .......................................................................... 9

3.1

Calibration Procedure........................................................................................ 9

3.2

Calibration Notes ............................................................................................ 10

3.3

Calibration Messages ...................................................................................... 11

TDS Calibration ...................................................................................... 12

4.1

Calibration Procedure...................................................................................... 12

4.2

Calibration Notes ............................................................................................ 13

4.3

Calibration Messages ...................................................................................... 14

Temperature Calibration ........................................................................ 15

5.1

Calibration Procedure...................................................................................... 15

5.2

Calibration Notes ............................................................................................ 15

5.3

Calibration Messages ...................................................................................... 16

RS232 Port.............................................................................................. 17

6.1

Setting the Baud Rate...................................................................................... 17

6.2

Sending Readings to the RS232 Port................................................................ 17

6.3

RS232 Configuration ...................................................................................... 18

6.4

Communication and Statistical Software.......................................................... 18

6.5

Commands...................................................................................................... 18

Recorder Output Option ........................................................................ 20

7.1

RS232 / Recorder Output Socket Connections ................................................. 21

Selecting k=10 or k=0.1 Sensors ........................................................... 22

Initialising the 901-C .............................................................................. 23

10.

Troubleshooting ................................................................................. 24

10.1

General Error Messages .............................................................................. 24

10.2

Conductivity and TDS Troubleshooting....................................................... 25

10.3

Temperature Troubleshooting...................................................................... 26

11.

Appendices......................................................................................... 27

11.1

Care, Cleaning and Maintenance of Conductivity Sensors............................ 27

11.2

Replatinising Conductivity Sensors ............................................................. 28

12.

Warranty ............................................................................................. 29

Содержание 901-C

Страница 1: ...duction has a diagram and explanation of the display and controls of the 901 C It also contains a full listing of all of the items that you should have received with your 901 C 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 901 C including operating mod...

Страница 2: ...Procedure 15 5 2 Calibration Notes 15 5 3 Calibration Messages 16 6 RS232 Port 17 6 1 Setting the Baud Rate 17 6 2 Sending Readings to the RS232 Port 17 6 3 RS232 Configuration 18 6 4 Communication and Statistical Software 18 6 5 Commands 18 7 Recorder Output Option 20 7 1 RS232 Recorder Output Socket Connections 21 8 Selecting k 10 or k 0 1 Sensors 22 9 Initialising the 901 C 23 10 Troubleshootin...

Страница 3: ...Page 2 1 Introduction 1 1 901 C Display and Controls 1 2 901 C Rear Panel Connectors ...

Страница 4: ...ctor of Conductivity TDS sensor See section 8 Key Used to calibrate Conductivity TDS and Temperature See sections 3 4 and 5 and Keys Used for temperature calibration See section 5 Press to recall Zero value from last successful Conductivity or TDS calibration Press to recall k factor value from last successful Conductivity or TDS calibration Used to select baud rate when optional RS232 port is fit...

Страница 5: ...ty Standard 200mL 122306 5 2 0 ppK TDS Standard 200mL 122307 6 AC DC Power Adaptor 130044 7 901 C Handbook 130050 Options that may have been ordered with your 901 C 1 K 10 ATC Conductivity Sensor 122222 2 K 0 1 ATC Conductivity Sensor 122224 3 Flexible arm type sensor holder 130088 4 RS232 option includes cable 130029 5 RS232 Communication software for Windows 130086 6 Recorder output option inclu...

Страница 6: ...1 µS cm 0 01 µS cm 0 1 µS cm 1 µS cm 0 01 mS cm 0 1 µS cm 1 µS cm 0 01 mS cm 0 1 mS cm 0 5 of full scale of selected range at 25 O C TDS k 0 1 Sensor 0 to 1 000 ppM 0 to 10 00 ppM 0 to 100 0 ppM 0 to 1000 ppM k 1 0 Sensor 0 to 10 00 ppM 0 to 100 0 ppM 0 to 1000 ppM 0 to 10 00 ppK k 10 Sensor 0 to 100 0 ppM 0 to 1000 ppM 0 to 10 00 ppK 0 to 100 0 ppK 0 001 ppM 0 01 ppM 0 1 ppM 1 ppM 0 01 ppM 0 1 pp...

Страница 7: ...d span calibration Standard Recognition Conductivity 14 94 µS cm 73 90 µS cm 150 0 µS cm 717 8 µS cm 1 413 µS cm 2 76 mS cm 6 67 mS cm 12 9 mS cm 24 8 mS cm 58 0 mS cm 111 9 mS cm TDS 69 5 ppM 2 00 ppK 8 0 ppK 36 0 ppK Sensor Span Range k 0 1 k 0 075 to k 0 133 k 1 0 k 0 75 to k 1 33 k 10 k 7 5 to k 13 3 Additional Temperature Specifications Sensor Type Silicon Transistor Offset Range 10 0 to 10 0...

Страница 8: ... 2000 mV optional ie 2 76 mS cm 276 mV TDS 0 to 1000 Counts for 0 to 1000 mV ie 36 0 ppK 360 mV Temp 10 0 to 120 0 O C for 0 to 2000 mV ie 0 0 O C 153 8 mV Output impedance approx 1000 Ohms Power 12V DC by AC DC power adaptor Dimensions 270 x 210 x 75 mm Mass Instrument only Approx 1 0 kg Full Kit Approx 2 5 kg Environment Temperature 0 to 45 o C Humidity 0 to 90 R H ...

Страница 9: ...and Temperature data is shown on the right Select this mode to calibrate TDS Temperature Mode 25 0o c Temperature data only is shown on the left Select this mode to calibrate Temperature Back to Conductivity plus Temperature mode The following modes are added when the optional RS232 port is fitted RS232 Send Rate Send Rate 0 Sets the Data output rate in seconds Press or to set this value from 0 to...

Страница 10: ... has stabilised at or near Zero press and hold the for 1 second The will not be removed after a zero calibration 5 Standard Calibration Allowable Conductivity standards are listed in the specifications in section 1 5 and should be selected according to your range of interest Place the electrode into a sample of Conductivity standard so that it is immersed at least to the vent hole in the body DO N...

Страница 11: ...t calibration will result in greater confidence in results 3 Conductivity and TDS calibration data is stored separately in memory Ensure that the 901 C has been correctly calibrated for the mode in which it will be used The 901 C does not require re calibration when alternating between Conductivity and TDS modes providing the instrument has been correctly calibrated for both 4 All calibration info...

Страница 12: ...ity reading has now been replaced by a decimal point due to the successful calibration 3 If a Span calibration has failed the 901 C will display the following messages and then the failed k factor of the sensor before returning to Conductivity mode For example Calibrate Failed Calibrate Failed then STD 2760uS STD 2760uS then k 0 70 Fails k 0 70 Fails Note that a replaces the decimal point in the C...

Страница 13: ... or near Zero press and hold the for 1 second The will not be removed after a zero calibration 5 Standard Calibration Allowable TDS standards are listed in the specifications in section 1 5 and should be selected according to your range of interest Place the electrode into a sample of TDS standard so that it is immersed at least to the vent hole in the body DO NOT place the electrode directly into...

Страница 14: ...libration will result in greater confidence in results 3 Conductivity and TDS calibration data is stored separately in memory Ensure that the 901 C has been correctly calibrated for the mode in which it will be used The 901 C does not require re calibration when alternating between Conductivity and TDS modes providing the instrument has been correctly calibrated for both 5 All calibration informat...

Страница 15: ...S reading has now been replaced by a decimal point due to the successful calibration 3 If a Span calibration has failed the 901 C will display the following messages and then the failed k factor of the sensor before returning to TDS mode For example Calibrate Failed Calibrate Failed then STD 36 00ppK STD 36 00ppK then k 0 70 Fails k 0 70 Fails Note that a replaces the decimal point in the TDS read...

Страница 16: ...ilised press the key 5 The 901 C now enters temperature calibration For example Enter True Temp Enter True Temp then 26 0 26 0o o c c 25 0 25 0 6 Press the and keys until the display shows the same temperature as the mercury thermometer 7 Press the key to calibrate the temperature readout Alternatively press the key to abort temperature calibration 5 2 Calibration Notes 1 Temperature calibration i...

Страница 17: ... c The is replaced by a decimal point in the Temperature reading to indicate that Temperature is correctly calibrated 2 If a temperature calibration has failed the 901 C will display the failed offset value of the sensor before returning to Temperature mode For example Temp Cal Fail Temp Cal Fail then Offset 11 0 Offset 11 0o o c c Note that replaces the decimal point in the Temperature reading to...

Страница 18: ...is communicating 3 Press the key to return to any of the normal display modes as required 6 2 Sending Readings to the RS232 Port The 901 C can send readings to the RS232 port at a pre set rate in seconds To set this Send Rate 1 Select RS232 Send Rate mode see section 2 2 The currently selected Send Rate is displayed For example Send Rate Send Rate 0 0 Press the key to increase the Send Rate Press ...

Страница 19: ...tted in columns that can be imported by programs such as Microsoft Excel and Lotus 123 Information on how to use the software is provided in the README files on the diskette 6 5 Commands The following commands can be sent from a PC to the 901 C Note that cr denotes carriage return and lf denotes a line feed Action Command Notes Request current data D cr Returns the current Conductivity TDS and Tem...

Страница 20: ... 6 characters right justified A is sent instead of the decimal point if the reading is not calibrated UUU is the unit description left justified Either uSs s mSs s ppM or ppK s s is one space s s is one space TTTTTT is the Temperature data Maximum 6 characters right justified A is sent instead of the decimal point if the reading is not calibrated oCs s is the Temperature unit description left just...

Страница 21: ...sent to Recorder Port Conductivity Temperature Conductivity TDS and Temperature TDS Temperature only Temperature RS232 Send Rate No Output RS232 Baud Rate No Output The output voltages are as follows Cond 0 to 2000 Counts for 0 to 2000 mV ie 2 76 mS cm 276 mV TDS 0 to 1000 Counts for 0 to 1000 mV ie 36 0 ppK 360 mV Temperature 10 0 to 120 0 O C for 0 to 2000 mV i e 0 0 O C 152 mV Output Output imp...

Страница 22: ...rder Output Socket Connections Pin No Connection 1 Chassis 2 Receive RS232 Data 3 Transmit RS232 Data 4 10 V DC Power Output 5 Ground 6 Recorder Output Signal 7 Recorder Output Common 8 No Connection 9 No Connection 1 5 6 9 ...

Страница 23: ... through the choice of k 10 or k 0 1 sensors 4 Press the key to exit when the desired k factor sensor has been selected The 901 C will now display its Model Firmware Version and Serial Number for approximately 4 seconds before going on to Conductivity plus Temperature mode Notes The manual k factor selection is kept in memory when the meter is switched off even when the power supply is removed If ...

Страница 24: ...yed Initializing Initializing then 901Cs V1 R1234 901Cs V1 R1234 The s s after 901C 901C is shown when the optional RS232 port is fitted 4 The 901 C now goes on to Conductivity plus Temperature mode Note that a replaces each of the decimal points in the Conductivity TDS and Temperature readings indicating that the unit requires calibration Notes When the optional RS232 port is fitted the Baud Rate...

Страница 25: ... off wait 10 seconds and try switching on again If message persists then the unit must be returned to TPS for service EEPROM WriteFail then Contact Factory displayed at calibration or set up Storage of user calibration settings to the EEPROM has failed Switch the 901 C off wait 10 seconds and then switch the unit on again Attempt calibration setup again If message persists then the unit must be re...

Страница 26: ...naccurate 5 Electrode is faulty 6 Faulty instrument 7 k factor incorrectly set if using k 0 1 or k 10 sensor Immerse electrode at least to the vent hole in the glass body Clean electrode as per the instructions detailed in section 11 1 Electrode requires replatinisation Return to the factory or see details in section 11 2 Replace standard solution Return electrode to factory for repair or replacem...

Страница 27: ...as per the instructions detailed in section 11 1 Immerse electrode at least to the vent hole in the glass body Return electrode to factory for repair or replacement Return instrument to factory for repair Set the correct k factor as per section 8 10 3 Temperature Troubleshooting Symptom Possible Causes Remedy Meter reads OverR in Temperature mode Temperature sensor is connected but is faulty Check...

Страница 28: ...with distilled water Conductivity electrodes can be stored dry Ensure that the electrode is stored in a covered container to avoid dust and dirt build up 11 1 2 Cleaning of Conductivity Sensors Platinised platinum Conductivity electrodes can only be cleaned by rinsing in a suitable solvent DO NOT wipe the electrode plates as this will remove the platinum black layer 1 Rinsing in distilled water wi...

Страница 29: ...he electrode well in distilled water c Immerse the electrode in platinising solution at least to the vent hole in the glass body Platinising solution is available from TPS part no 122300 Alternatively platinising solution can be prepared by dissolving 1g of Hydrogen Chloroplatinate H2PtCl16 in 30mL of distilled water and including about 0 01g of Lead Acetate CH3COO 2Pb and a drop or two of concent...

Страница 30: ...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...

Страница 31: ...aired and returned to you by air express where possible For out of warranty units a repair cost will be calculated from parts and labor 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 ac...

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