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DR359TX
- Ion Meter - Users Manual
Table of Contents
Section 1 - Introduction and Set Up
Section 2 - pH Calibration & Measurement
Section 3 - Ion Calibration & Measurement
Section 4 - mV Calibration & Measurement
Section 5 - Use of the Recorder Output
Section 6 - Use with a Printer or Computer
Section 7 - Troubleshooting
Section 8 - Specification
Appendix 1 - pH Electrodes & Buffers
Appendix 1 - Concentration Units
Accessories - Accessories
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Summary of Contents for EDT directION DR359TX
- Page 1 DR359TX - Ion Meter - Users Manual Table of Contents Section 1 - Introduction and Set Up Section 2 - pH Calibration & Measurement Section 3 - Ion Calibration & Measurement Section 4 - mV Calibration & Measurement Section 5 - Use of the Recorder Output...
- Page 2 SECTION 1 - Introduction Description The DR359Tx Ion Concentration/pH meter can be used with pH, Ion selective and redox electrodes. The meter will automatically calculate the relationship between up to 5 ion standards allowing sample concentration to be read directly, avoiding the plotting of calibration graphs.
- Page 3 Figure 2. Rear view of DR359Tx A Note on Electrodes pH, Ion Selective and Redox electrodes may all be used with the DR359Tx. These may be combination or half-cell types. Combination or sensing half-cells should have a BNC terminal and be connected to the socket marked pH/ION input at the back of the meter.
- Page 4 Figure 3. Front Panel Calibration Keys - Alter displayed reading Clear Clears Calibration data when pressed for 5 s Enter Enters displayed value as calibration data Slope Mode Alters displayed decade. Calibration key for Ion Concentration. Displays electrode slope. Send Transmits data to printer.
- Page 5 Manual Calibration If buffers other than 4,7 and 10pH are to be used, then the calibration must be performed manually. That is the correct pH values must be entered using the ñò keys Follow the procedure for Auto calibration above but before pressing the enter key (points 3 and 4) carry out the following procedure: 1.
- Page 6 Calibration and Measurement Note: Refer to Appendix 2 on concentration units before proceeding 1. Up to 5 calibration points may be entered. Standards should be prepared such that their concentrations lie either side of the expected sample range. If 2 standards are to be used then ideally they should be 10fold apart in concentration.
- Page 7 Relative mV Follow the procedure for Absolute mV from 1 to 3 4. Immerse electrode(s) in the standard or blank solution. Wait for a stable reading and press Enter. The display will automatically zero and the CAL flag will be displayed. 5.
- Page 8 CA—Send Calibration Data PR –Send Probe Status Data Command—CA Command—PR 1 CR LF = 95.3% NERNST CRLF = 7.06 CR LF = 15.8 °C CR LF E° = 5.2mV CR LF = -0.2mV CR LF 2 CR LF Second calibration point RD –Send Current Readings RS232 Connection details Command—RD...
- Page 9 Error Codes PRO - Temperature probe malfunction Buf - Wrong or Contaminated Buffer (pH Mode only) SL - Poor Electrode Slope caused by faulty electrode or poor buffers/ standards E° – Faulty or Aged electrode E6, E7 - Calibration error. Recalibrate with fresh standards or buffers Electrodes out of solution.
- Page 10 9.75 Appendix 2 - Concentration Units The DR359Tx can measure concentration in the range 0.001 to 9990 units. If this range is insufficient, then a multiplier must be applied to all readings e.g. Calibration Standard A = 10-6 M Ÿ...
- Page 11 Accessories - Ion Selective Electrodes (Combinations) Species Code Species Code Ammonia 3302 Lead 3231 Ammonium 3051 Mercury 3251 Barium 3081 Nitrate 3021 Bromide 3271 Nitrite 3071 Cadmium 3241 Perchlorate 3061 Calcium 3041 Potassium 3031 Carbonate 3091 Silver 3211 Chloride 3261 Sodium 3301 Cupric...
- Page 12 For more information on our products please visit our website www.edt.co.uk EDT directION Unit 5 Waldershare Park, Dover. CT15 5DQ. Telephone: 01304 829960 Email: sales@edt.co.uk Company No, 04135318 VAT No. GB 765175410...
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