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Congratulations !
The smartCHEM-C is a precision, research grade Conductivity instrument and is designed to
give you many years of reliable service.
Despite its impressive list of features, the smartCHEM-C 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
smartCHEM-C. It also contains a full listing of all of the items that you should have received
with the 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 smartCHEM-C, 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.
smartCHEM - C
Conductivity, TDS,
Resistivity, Ratio,
Temperature Meter
Date
: 19-May-2003
Author : MS
Version : 1.0
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Summary of Contents for TPS smartCHEM-C
- Page 1 The introduction has a diagram and explanation of the display and controls of the smartCHEM-C. It also contains a full listing of all of the items that you should have received with the unit. Please take the time to read this section, as it explains some of items that are mentioned in subsequent sections.
- Page 2 TPS Pty Ltd ABN 30 009 773 371 4 Jamberoo Street Springwood, Brisbane, Australia, 4127 Phone : (07) 32 900 400 International : 61 7 32 900 400 : (07) 3808 4871 International : 61 7 3808 4871 Email : tps@tps.com.au...
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Page 3: Table Of Contents
Contents Introduction............................5 smartCHEM-C Display and Controls ................... 5 smartCHEM-C Rear Panel Connectors ..................5 Function and Menu Keys......................6 One-touch Keys........................... 6 Numeric Keypad ......................... 6 Delete Key ..........................6 240 x 64 Dot Graphic Display ..................... 6 Unpacking Information........................ 7 Specifications.......................... - Page 4 Recorder Port ..........................60 14.1 Recorder Port Configuration...................... 60 14.2 Recorder Port Specifications ..................... 61 Setting the Clock ......................... 62 Initialising the smartCHEM-C...................... 63 Instrument firmware version number ..................63 Troubleshooting .......................... 64 18.1 General Errors........................... 64 18.2 Conductivity, TDS & Resistivity Troubleshooting..............65 18.3...
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Page 5: Introduction
1. Introduction 1.1 smartCHEM-C Display and Controls 1.2 smartCHEM-C Rear Panel Connectors Turn the retaining nut clockwise until it clicks into place when plugging in plastic connectors. This is essential to produce a waterproof seal. Always replace the waterproof cap when a connector is not in use to maintain... -
Page 6: Function And Menu Keys
1.3 Function and Menu Keys Press to enter the user-friendly menu system. is also used to step backwards through the menu one level at a time, and as an “escape” key to quit functions such as calibration, data entry etc. Press the function keys to select desired options within the menu system. -
Page 7: Unpacking Information
1.8 Unpacking Information Before using your new smartCHEM-C, please check that the following accessories have been included: Part No Standard Kit… 1. smartCHEM-C Conductivity / TDS / Resistivity / Ratio Meter ........122105 2. k=1/ATC/Temp Conductivity/TDS Sensor ..............122230 3. Temperature/ATC Sensor....................121248 4. -
Page 8: Specifications
1.9 Specifications 1.9.1 Conductivity Ranges Resolution Accuracy k=0.1 Sensor 0 to 2.000 µS/cm 0.001 µS/cm ±0.2% of full scale of 0 to 20.00 µS/cm 0.01 µS/cm selected range at 25 0 to 200.0 µS/cm µS/cm 0 to 2000 µS/cm µS/cm 0 to 20.00 mS/cm... - Page 9 1.9.2 TDS Ranges Resolution Accuracy k=0.1 Sensor 0 to 1.000 ppM 0.001 ppM ±0.5% of full scale of 0 to 10.00 0.01 selected range at 25 0 to 100.0 0 to 1000 0 to 10.00 0.01 k=1.0 Sensor 0 to 10.00 0.01 ±0.5% of full scale of...
- Page 10 1.9.3 Resistivity Ranges Resolution Accuracy k=0.1 Sensor ±0.5% of full scale of 0.50 to 99.00 MΩ.cm 0.01 MΩ.cm selected range at 25 to 9999 KΩ.cm KΩ.cm to 999.9 KΩ.cm KΩ.cm 0.50 to 99.99 KΩ.cm 0.01 KΩ.cm Ω.cm Ω.cm to 9999 k=1.0 Sensor ±0.5% of full scale of to 9999...
- Page 11 1.9.4 Ratio Ranges Resolution Accuracy 0.000 to 1.500 0.001 ±0.001 1.50 to 15.00 0.01 ±0.01 (exact ranges depend on span of sensors) Note : Allowable difference of k factors sensors is 50% to 200%, relative to reference sensor. Actual Conductivity of sample and reference solutions must be within measurement range of the k factor sensor being used.
- Page 12 1.9.6 General Specifications Memory..........2730 readings including date and time Electrode re-platinising output .... Automatically detects k factor of sensor to be re-platinised and adjusts current and time accordingly. Automatic Logging....... User-set for one reading every 2 to 90 seconds, minutes or hours.
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Page 13: Smartchem-C Menu Structure
2. smartCHEM-C Menu Structure A detailed breakdown of the menu system of the smartCHEM-C is shown below. This diagram provides a quick reference for the menu functions available for the smartCHEM-C. → → F1:Calibrate F1:Condutivity or TDS F1:TDS F1:Resistivity →... -
Page 14: Conductivity Mode
→ → F3:Mode → → F1:Cond.). 1. Select Conductivity Mode ( 2. The smartCHEM-C 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 3.8). -
Page 15: Setting The Conductivity Calibration Standard
Press to set the Conductivity Standard as S/m. or (c) If the smartCHEM-C is set up for dS/m (section 3.2), dS/m is set as the unit for the standard. 5. The Conductivity standard is now programmed for use at calibration. -
Page 16: Setting The Atc Slope For Unknown Samples
The ATC Slope for the Calibration standard is the rate at which the conductivity of the solution changes per degree Celsius. This Slope must be set correctly on the smartCHEM-C to enable the Automatic Temperature Compensation system to work correctly. If the ATC Slope is not known, please refer to section 19.2 for details on how it can be calculated. -
Page 17: Conductivity Sensor K Factor
The smartCHEM-C automatically recognises whether a k=0.1, k=1.0 or k=10 Conductivity sensor is being used via links in the connector. Calibration settings for the various k factors are stored separately. The smartCHEM-C does not require re-calibration when a different k factor sensor is connected, provided it has already been calibrated for the different sensor. -
Page 18: Conductivity Calibration
DO NOT BLOT THE CONDUCTIVITY ELECTRODE PLATES. Zero Calibration 3. Let the sensor dry in air. → → F1:Calibrate → → F1:Cond.). 4. Select Conductivity Calibration ( 5. The smartCHEM-C will recognise the low conductivity signal and attempt a Zero calibration. For example… Cond. 0*01uS/cm ZERO... - Page 19 To calibrate immediately without waiting for complete stability, press to disable the Automatic Stability Function. The “ ∗ ” will now be replaced by a decimal point if calibration was successful. 9. The smartCHEM-C is now calibrated for Conductivity and is ready for use in this mode.
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Page 20: Conductivity Calibration Notes
3. Conductivity, TDS, Resistivity and Ratio calibration data is stored separately in memory. Ensure that the smartCHEM-C has been correctly calibrated for the mode in which it will be used. The smartCHEM-C does not require re-calibration when alternating between modes, providing the instrument has been correctly calibrated for each mode on the k factor sensor to be used. -
Page 21: Tds Mode
→ → F3:Mode → → F2:TDS). 1. Select TDS Mode ( 2. The smartCHEM-C now proceeds to TDS measurement mode. Note that a “ ∗ ∗ ” is shown in place of the decimal point until a successful calibration has been performed (see section 4.7). -
Page 22: Setting The Atc Slope For Unknown Samples
Celsius. This is important, as TDS values are calculated from Conductivity. The ATC Slope must be set correctly on the smartCHEM-C to enable the Automatic Temperature Compensation system to work correctly. If the ATC Slope is not known, please refer to section 19.2 for details on how it can be calculated. -
Page 23: Tds Sensor K Factor
4.6 TDS sensor k factor The smartCHEM-C automatically recognises whether a k=0.1, k=1.0 or k=10 TDS sensor is being used via links in the connector. Calibration settings for the various k factors are stored separately. The smartCHEM-C does not require re-calibration when a different k factor sensor is connected, provided it has already been calibrated for the different sensor. -
Page 24: Tds Calibration
If the separate temperature probe is plugged in, the smartCHEM-C always uses this for temperature readout and ATC. To use the TDS sensor for Temperature readout and ATC, the separate temperature sensor must be disconnected. - Page 25 To calibrate immediately without waiting for complete stability, press to disable the Automatic Stability Function. The “ ∗ ” will now be replaced by a decimal point if calibration was successful. 9. The smartCHEM-C is now calibrated for TDS and is ready for use in this mode.
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Page 26: Tds Calibration Notes
3. Conductivity, TDS, Resistivity and Ratio calibration data is stored separately in memory. Ensure that the smartCHEM-C has been correctly calibrated for the mode in which it will be used. The smartCHEM-C does not require re-calibration when alternating between modes, providing the instrument has been correctly calibrated for each mode on the k factor sensor to be used. -
Page 27: Resistivity Mode
→ → F3:Mode → → F3:Resist.). 1. Select Resistivity Mode ( 2. The smartCHEM-C now proceeds to Resistivity measurement mode. Note that a “ ∗ ∗ ” is shown in place of the decimal point until a successful calibration has been performed (see section 5.7). -
Page 28: Setting The Atc Slope For Unknown Samples
Celsius. This is important, as Resistivity values are calculated from Conductivity. The ATC Slope must be set correctly on the smartCHEM-C to enable the Automatic Temperature Compensation system to work correctly. If the ATC Slope is not known, please refer to section 19.2 for details on how it can be calculated. -
Page 29: Resistivity Sensor K Factor
The smartCHEM-C automatically recognises whether a k=0.1, k=1.0 or k=10 Resistivity sensor is being used via links in the connector. Calibration settings for the various k factors are stored separately. The smartCHEM-C does not require re-calibration when a different k factor sensor is connected, provided it has already been calibrated for the different sensor. -
Page 30: Resistivity Calibration
If the separate temperature probe is plugged in, the smartCHEM-C always uses this for temperature readout and ATC. To use the Resistivity sensor for Temperature readout and ATC, the separate temperature sensor must be disconnected. - Page 31 To calibrate immediately without waiting for complete stability, press to disable the Automatic Stability Function. The “ ∗ ” will now be replaced by a decimal point if calibration was successful. 9. The smartCHEM-C is now calibrated for Resistivity and is ready for use in this mode.
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Page 32: Resistivity Calibration Notes
3. Conductivity, TDS, Resistivity and Ratio calibration data is stored separately in memory. Ensure that the smartCHEM-C has been correctly calibrated for the mode in which it will be used. The smartCHEM-C does not require re-calibration when alternating between modes, providing the instrument has been correctly calibrated for each mode on the k factor sensor to be used. -
Page 33: Ratio Mode
It also checks if the actual Conductivity of the signals from each sensor are within the range of measurement of the k factor being used. If either of these checks fail, the smartCHEM-C will not proceed to Ratio mode. If this occurs, press , then F3:Mode, and change back to Conductivity, TDS or Resistivity modes. -
Page 34: Setting The Ratio Calibration Standard
Press to set the Conductivity Standard as S/m. or (c) If the smartCHEM-C is set up for dS/m (section 3.2), dS/m is set as the unit for the standard. 5. The Ratio standard is now programmed for use at calibration for Ratio*Standard mode. -
Page 35: Ratio Calibration
To calibrate immediately without waiting for complete stability, press to disable the Automatic Stability Function. The “ ∗ ” will now be replaced by a decimal point if calibration was successful. 6. The smartCHEM-C is now calibrated for Ratio and is ready for use in this mode. -
Page 36: Ratio Calibration Notes
1. The two Conductivity sensors MUST be calibrated in separate containers, as they interfere with each other. 2. The smartCHEM-C checks that the sensors have the same k factor, and that a suitable k factor is being used for the conductivity level of the solutions being measured whenever Ratio mode is selected and before every Ratio calibration. -
Page 37: Temperature Mode
When the Temperature reading has stabilised, the unit will calibrate itself. To calibrate immediately without waiting for complete stability, press to disable the Automatic Stability Function. 6. The smartCHEM-C is now calibrated for Temperature and is ready for use in this mode. -
Page 38: Temperature Calibration Notes
1. If a temperature calibration has been successfully performed, the smartCHEM-C will display the following message and the offset of the sensor. Calibration OK Offset=0.1 2. If a temperature calibration has failed, the smartCHEM-C will display the following message and the failed offset value of the sensor. Calibration Failed Offset=11.0 3. -
Page 39: Auto Stability Function (Asf)
8. Auto Stability Function (ASF) ASF adds an extra level of versatility to the smartCHEM-C. When ASF is activated, the smartCHEM-C monitors all parameters that are currently in use. When ALL parameters become stable, the readings are frozen on the display. -
Page 40: Asf With Manual Datalogging
8.3 ASF with Manual Datalogging 1. Press then in normal measurement mode. All active parameters are highlighted and the symbol appears in the display, along with the message “Auto Store”. For example… mS/cm 31/12/03 Auto Log#1 12:00:00 Store As each parameter becomes stable, the highlighting is removed. If any parameter subsequently becomes unstable, the highlighting is applied again. -
Page 41: Asf With Automatic Datalogging
ASF off. 9. Display Backlight The smartCHEM-C is fitted with an Electro-Luminescence (“EL”) backlight. This can be set up according to your preferences as follows… 1. Switch the meter on. -
Page 42: Good Laboratory Practices (Glp)
10. Good Laboratory Practices (GLP) The smartCHEM-C 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 43 GLP Display sequence, continued… k=1 Cell Cond Zero=0.00 uS/cm 31/12/03 13:00 Cond k=1.10 @ 2760.uS/cm 31/12/03 13:10 Cond Calibrated TDS Zero=0.00 31/12/03 13:00 TDS k=1.10 @ 2000ppM 31/12/03 13:20 TDS Calibrated F2:Back F4:Next ↑ ↑ ↓ ↓ k=1 Cell Ω Ω Res.
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Page 44: Failed Calibration
If calibration has failed, the GLP function will reset the date and time for the failed parameter to zero. The smartCHEM-C still shows the results for the last successful calibration, as shown in the following example where the last Conductivity and TDS calibrations have failed…... -
Page 45: Glp Calibration Alarm
10.4 GLP Calibration Alarm A new feature of the smartCHEM-C is the GLP calibration alarm. The operator can select how often they wish to be reminded that the instrument requires calibration, and for which parameters they wish to be reminded. -
Page 46: Instrument Serial Number
GLP Calibration Alarm will still be on the following Monday. 10.5 Instrument Serial Number In case the serial number that is fitted to the rear of the smartCHEM-C is removed or becomes illegible, it is also available on the smartCHEM-C display. -
Page 47: Additional Glp Features
10.6 Additional GLP Features Another GLP requirement is to record the date and time of every reading. The smartCHEM-C does this for you whenever readings are recorded either with the Manual Datalogging function (section 12.1) or the Automatic Logging function (section 12.2). -
Page 48: Access Code
Re-enter the access code as per the previous step. Press to quit without enabling the Access Code system. 5. The smartCHEM-C now confirms that the Access Code system is enabled before returning to the Access Code menu. 11.2 Using the Access Code System When the Access Code system is enabled (as per section 11.1), the smartCHEM-C prompts the... -
Page 49: Changing The Access Code
Re-enter the access code as per the previous step. Press to quit without changing the Access Code. 5. The smartCHEM-C now confirms that the Access Code system is enabled before returning to the Access Code menu. 11.4 Disabling the Access Code System →... -
Page 50: Datalogging
The display should now look similar to that shown below. The current Logging/Printing Period is displayed. Enter Logging/Print Period: 0 secs 3. Use the Numeric Keypad to set the period at which the smartCHEM-C will automatically log records into memory or to the RS232 port. Press to save the Logging/Printing Period. Press to quit without changing the current setting. - Page 51 5. The smartCHEM-C will ask if the records are to be logged into the instrument’s memory, or sent directly to the RS232 port. The display will look like this… F1:Log to Memory F3:Send to RS232 Press to log records into the Logger (maximum of 2730 readings).
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Page 52: Recalling Readings From The Logger
Notes on Automatic Datalogging 1. The clock must be set before the smartCHEM-C will allow automatic datalogging to start. The message “Clock Not Set” is displayed if the clock is not set. See section 15 for details on setting the clock. -
Page 53: Printing Records From The Logger To The Rs232 Port
2. Connect the other end of the RS232 cable to an RS232 Printer, or to a Serial port of a PC. 3. Ensure that the baud rate for the printer or PC and the smartCHEM-C are the same. If necessary, alter the baud rate of the smartCHEM-C (see section 13.1). -
Page 54: Rs232 Port
13.2 Sending Readings to the RS232 Port Press to instantly send readings to the RS232 port whenever the smartCHEM-C is in normal display mode. Records can be sent directly to the RS232 port rather than stored in memory during automatic datalogging. -
Page 55: Commands
13.5 Commands The following commands can be sent from a PC to the smartCHEM-C. Note that <cr> denotes carriage return and <lf> denotes a line feed. Action Command Notes Request current data ?D<cr> Returns the current data of all parameters plus date and time from the smartCHEM-C. -
Page 56: Data Format
When requested by a PC with the ?D or ?R commands (section 13.5), the data is terminated with a carriage return. When the data is sent by the smartCHEM-C using the Print function (section 12.5) or the Instant Send function (section 13.2), the data ends with a carriage return and a line feed. -
Page 57: Glp Data Format
GLP information is returned as 25 lines terminated by a carriage return. When using the “?G” command (section 13.5), the computer must respond with a character after receiving each line. For example… smartCHEM-C V1.0 S1234 @ 31/12/2003 16:00 k=.1 Cond Zero= 0.001uS/cm @ 31/12/2003 12:00 k=.1 Cond k=0.11 @ 2760.uS/cm @ 31/12/2003 12:10... -
Page 58: Importing Data Into Microsoft Excel
13.8 Importing Data into Microsoft Excel The following procedure details the method for importing a smartCHEM-C 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 59 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.
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Page 60: Recorder Port
14.1 Recorder Port Configuration 1. Select the Recorder set-up menu → → F4:Setup → → F4:Ports → → F3:Recorder). The smartCHEM-C will now display the Recorder Port configuration screen… RECORDER F1:Conductivity F3:Temperature The arrow indicates the current selection. -
Page 61: Recorder Port Specifications
14.2 Recorder Port Specifications Mode Range Output Range Examples (Reading = mV Out) Conductivity 0 to 3.000 µS/cm 0 to 2000 mV for full 0.000 µS/cm = 0 mV 0 to 30.00 µS/cm scale of selected 2760 uS/cm = 1840 mV 0 to 300.0 µS/cm... -
Page 62: Setting The Clock
Alternatively, press menu to quit and retain the current setting. Notes 1. The smartCHEM-C tests that a valid day of the month is entered. If an invalid date is entered (eg. 31/02/2001), the smartCHEM-C beeps and displays the message “Invalid Date”. -
Page 63: Initialising The Smartchem-C
16. Initialising the smartCHEM-C If the calibration settings of the smartCHEM-C 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. Initialising the unit will reset all user setups to their factory default values and erase all readings logged in memory. -
Page 64: Troubleshooting
18.1 General Errors Error Message Possible Causes Remedy Factory Cal. Failure The EEPROM chip which The unit must be returned to TPS for service. contains the factory calibration Need Factory Service information has failed. EEPROM Write Failure User calibration settings have Switch the meter OFF for 5 seconds and been lost or corrupted. -
Page 65: Conductivity, Tds & Resistivity Troubleshooting
18.2 Conductivity, TDS & Resistivity Troubleshooting Symptom Possible Causes Remedy Unit fails to calibrate, even Calibration settings outside of Initialise the unit. See section 16. with new probe. allowable limits due to previous failed calibration. Unit attempts Span Sensor has Zero error. Thoroughly rinse sensor in distilled water calibration instead of Zero and allow to completely dry in air before... -
Page 66: Ratio Troubleshooting
Symptom Possible Causes Remedy Unit will not proceed to 1. Sensor connectors are not Ensure that you are using genuine TPS correctly coded. Ratio mode, even with Conductivity sensors. If not, contact TPS matching k factor sensors for details on k factor coding. -
Page 67: Temperature Troubleshooting
Temperature sensor, sensor for repair, or replace sensor. whichever is being calibrated. Displays ‘OveRnge’ when 1. Faulty instrument socket. Return the instrument to the TPS factory for service. Temperature and/or Conductivity/TDS sensor 2. Faulty Conductivity/TDS or Return Conductivity/TDS or Temperature plugged in. -
Page 68: Appendices
→ → F3:Mode). 1. Select the Mode menu ( 2. Select F6:Man R to change to Manual Range Switching, if the smartCHEM-C is currently in Automatic Range Switching mode. The smartCHEM-C now provides information on how to manually change ranges up and down when taking measurements. The main display will now appear with the “Man. -
Page 69: Calculating The Atc Slope Of Solutions
Conductivity 2 <Enter second Conductivity reading> Temperature 2 <Enter second Temperature reading> ATC Slope =100*((10^((LOG10(B3/B1))/(B4-B2)))-1) Alternatively a ready-made file in can be downloaded from the Downloads page of the TPS Web Site. Enter http://www.tps.com.au/downloads/ into your browser to go there directly. -
Page 70: Care, Cleaning And Maintenance Of Conductivity Sensors
19.3 Care, Cleaning and Maintenance of Conductivity Sensors Care of Conductivity sensors The conductivity section of the sensor supplied with your smartCHEM-C 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 71: Replatinising Conductivity Sensors
19.4 Replatinising Conductivity Sensors The smartCHEM-C is fitted with an automatic sensor platinising function to restore Conductivity sensors to correct performance. To replatinise Conductivity sensors… 1. Soak the sensor in a solution of 1 part Concentrated HCl and 10 parts distilled water for approximately 5 minutes. -
Page 72: 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.
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