EXPERTS IN WATER CHEMISTRY SINCE 1903
9091C Dissolved Hydrogen Analyzer
User Manual
Revision 2.04
Page 1: ...EXPERTS IN WATER CHEMISTRY SINCE 1903 9091C Dissolved Hydrogen Analyzer User Manual Revision 2 04...
Page 2: ...vide the following information Date analyzer was purchased Analyzer model and serial number Recent maintenance history Calibration slope values and detailed description of problem Waltron s technical...
Page 3: ...nly qualified personnel should be involved in the installation operation and servicing of the analyzer Follow safety precautions when operating analyzer in conditions of high pressure and or temperatu...
Page 4: ...address and department Name and telephone number of the individual responsible for returning items for repair Brief problem description Ship to Waltron service center Waltron Bull Roberts LLC 25 Minne...
Page 5: ...eceived against those on the packing list Chemicals are usually shipped in a separate package and will be itemized accordingly Verify that the number of packages received agrees with the packing list...
Page 6: ...3 TECHNICAL DATA 13 3 OPERATING PROCEDURES 14 3 1 PRINCIPLE OF MEASUREMENT 14 3 2 CALIBRATION VIA ELECTROLYSIS 15 4 START UP 16 4 1 MENU STRUCTURE 16 4 2 PREPARING TO MEASURE 18 4 3 CHOICE OF OPERATI...
Page 7: ...primary loop of a nuclear power plant the hydrogen should reduce or mitigate the oxygen which is produced by radiolysis As a result the electro chemical corrosion potential ECP of the tube material i...
Page 8: ...ng device is situated together with the calibration cell the measuring cell and the flow measuring device The measuring cell is joined with the temperature sensor and the reference cell with its refer...
Page 9: ...ternal calibration devices or procedures are required it is not necessary to shut down the operation during the calibration This sturdy and reliable measurement system makes it possible to operate ver...
Page 10: ...10 1 3 THE MEASURING SYSTEM Measuring cell Calibration cell...
Page 11: ...11 1 4 BLOCK DIAGRAM OF SENSOR SYSTEM...
Page 12: ...erial 5 1 power cable 6 1 recorder cable 7 1 pocket option 8 1 sample line option 9 1 software for digital measuring option White 0 4 20 mA Brown 0 4 20 mA Green Limit low Yellow Common Gray Limit hig...
Page 13: ...g option Limit power relay Alarming power relay Flow and Calibration Measuring electrode platinum Counter electrode stainless steel 1 4571 314 Reference Electrode Ag AgCl in saturated KCl solution Cal...
Page 14: ...rode Under these conditions the rate of the electrochemical reaction is limited by the rate of diffusion of hydrogen molecules to the electrode As long as we remain within this diffusion limiting curr...
Page 15: ...ional to the current A constant electric current of 13 4 mA for example produces an increase in the hydrogen concentration of 50 g l at a flow rate of 10 l h This rise of the output current of the mea...
Page 16: ...1 2 AutoCal 2 3 AutoCal Period 1 3 RangeModus ManRange SET Period daily RangeModus 2 2 AutoCal Period 2 3 AutoRange SET weekly Menu 04 11 I Output AutoCal Period 3 3 I Output 0 20 mA SET monthly I Out...
Page 17: ...Interval 3 5 1 min SET Logging Interval 4 5 2 min SET Logging Interval 5 5 5 min SET Logging 3 4 Logging Control Control Press to stop logging Logging Control press to reset Press to continue or Cauti...
Page 18: ...tube is connected with tube fittings to the inlet valve The outlet line is placed at the measuring cell exit with a hose having a 5 mm inside diameter 4 3 CHOICE OF OPERATING PARAMETERS Before starti...
Page 19: ...4th Menu level I Output sets the analog output current 0 4 20 mA 5th Menu level Limit allows limit settings There exists a switch hysteresis of 10 of the chosen limit 6th Menu level FlowCal enables fl...
Page 20: ...ube system rinse out To help the bubbles to rinse out open and close quickly the inlet valve several times Attention Make sure that the plugs stay dry 5 2 ANALYZER CALIBRATION After the hydrogen analy...
Page 21: ...actor of the measuring electrode is beneath 10 of the determined value calculated after that calibration which followed a cleaning As discussed above the k Factor can be looked up in the menu Paramete...
Page 22: ...see also Section 6 1 The cleaning procedure thereafter is the same as described for the calibration cell When reassembling make sure that all parts are dry 7 TROUBLESHOOTING If the values of the flow...
Page 23: ...start up time and the time until steady state condition 8 SPARE PARTS AND ACCESSORIES 1 Set of O rings TA LP 100 01 100 ml of KCl solution LP 100 02 1 kg of granular marble LP 100 03 1 Reference elect...
