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ba75488e02

07/2011

SensoLyt

®

MPP-A Pt

ORP combination electrode

Operating manual

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Summary of Contents for SensoLyt MPP-A Pt Series

Page 1: ...ba75488e02 07 2011 SensoLyt MPP A Pt ORP combination electrode Operating manual ...

Page 2: ...ng cap from the electrode tip Possible salt deposits in the area of the watering cap do not affect the measuring characteristics and can easily be removed with deionized water Install the electrode in the armature see operating manual of the arma ture Before installing the electrode slightly lubricate the O ring of the armature black area with the grease provided If necessary carry out an activati...

Page 3: ...URef depends on the reference system and temperature and is given in the following table see also DIN 38404 6 for the system Ag AgCl saturated KCl with UH ORP referring to the standard hydrogen electrode UMeas Measured ORP URef Voltage of the reference system compared to the standard hydrogen electrode T C URef mV T C URef mV SensoLyt MPP A Pt SensoLyt MPP A Pt 0 221 35 187 5 216 40 181 10 212 45 ...

Page 4: ...up times that can take significantly more than an hour In this case pretreatment activation of the platinum surface can shorten the set up time The type of pretreatment reducing or oxidizing is based on the pH val ue and the ORP voltage UH of the test solution where the latter must be es timated for the first measurement The type of pretreatment can then be determined using the following diagram w...

Page 5: ... breaks Immerse the combination electrode in reference electrolyte KCl 3 mol L Ag free Prior to the next measurement shortly rinse the combination electrode with the test sample or deionized water Overnight or longer Put the clean combination electrode in the watering cap that is filled with reference electrolyte KCl 3 mol L Ag free Note The combination electrode must not be stored dry or in deion...

Page 6: ... toothbrush Fat oil protein containing coatings and similar substances Remove with household washing up liquid Description Model Order no Reference electrolyte solution 3 mol l KCl Ag free 250 ml KCl 250 109 705 Reagent set for regenerating ORP platinum electrodes consisting of 10 g activation powder and 30 g clorina powder SORT RH 109 730 ORP buffer solution for checking ORP electrodes UH 427 mV ...

Page 7: ...ure sensor Integrated NTC 30 30 k at 25 C 77 F Measurement and application characteristics ORP application range 2000 2000 mV Allowed temperature range 0 50 C 32 122 F Minimum immersion depth 25 mm Precision of temperature sensor 0 2 K Response time t99 130 s Allowed pH range of the measuring medium 4 12 Pressure resistance IP 68 106 Pa or 10 bar Materials Shaft Glass Armoring POM Watering cap PE ...

Page 8: ...Wissenschaftlich Technische Werkstätten GmbH Dr Karl Slevogt Straße 1 D 82362 Weilheim Germany Tel 49 0 881 183 0 49 0 881 183 100 Fax 49 0 881 183 420 E Mail Info WTW com Internet http www WTW com ...

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