Ion-selective electrodes - WTW

Ion-selective electrodes - WTW

  • SKU: 106651
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  • Description

    Ion-selective electrodes

    Potassium, Fluoride, Aluminium, Phosphate, Lithium, Ammonium, Copper, Cyanide, Chloride, Sodium, Calcium, Magensium, Silver, Nitrate, Bromide

    Ion-selective and gas-sensitive electrodes are used for measuring the dissolved concentration of specific ions or gases in water. Similar to the pH electrode, the membrane interacts with the dissolved ions and delivers a concentration-dependent voltage signal  that is converted to the corresponding measurement result.

    Highlights:
    • Space-saving through integrated reference electrode
    • broad selection of applications including ammonium measurement
    • Slim and space-saving design with 12 mm shaft diameter
    Variants
    Art.-Nr. Name Description Connection
    106395 NH 500/2 Ammonium-selective electrode S7-Plug head, without cable
    106649 Na 800/S7 Sodium-selective electrode S7-Plug head, without cable
    106651 Ag/S 800 DIN Silver-/Sulphide-selective electrode 1 m DIN cable
    106653 Br 800 DIN Bromide-selective electrode 1 m DIN cable
    106655 Ca 800 DIN Calcium-/Magnesium-selective electrode 1 m DIN cable
    106656 Ca 800/AT Exchange head for Ca 800 -
    106661 Cl 800 DIN Chloride-selective electrode 1 m DIN cable
    106663 CN 800 DIN Cyanide-selective electrode 1 m DIN cable
    106665 Cu 800 DIN Copper-/Nickel-selective electrode 1 m DIN cable
    106666 F 800 BNC Fluoride-/Aluminium-/
    Phosphate-/Lithium-selective electrode    		 1 m BNC cable
    106667 F 800 DIN Fluoride-/Aluminium-/
    Phosphate-/Lithium-selective electrode    		 1 m DIN cable
    106671 K 800 DIN Potassium-selective electrode 1 m DIN cable
    106672 K 800/AT Exchange head for K 800 -
    106675 NO 800 DIN Nitrate-selective electrode 1 m DIN cable

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  • Specifications
    Electrode NH 500/2 Na 800/S7 Ag/S 800 DIN Br 800 DIN
    Art.-No. 106395 106649 106651 106653
    Ions Ammonium Sodium Silver-/Sulphide Bromide
    Measuring range 10-6 ... 5 · 10-2 mol/l NH4+
    0,02 ... 900 mg/l NH4+    		 10-6 ... 1 mol/l Na+
    0,01...23000 mg/l Na+    		 Ag: 0,01 ... 108.000 mg/l
    Sulfid: 0,003 bis 32.000 mg/l    		 0,4 ... 79000 mg/l Br-
    Reference electrolyte - 3 mol/l KCl - -
    Diaphragm - Platin - -
    pH range   8 ... 11 2 ... 12 1 ... 12
    Temperature range 0 ... 50 °C -10 ... +80 °C 0 ... 80 °C 0 ... 80 °C
    Membrane resistance   < 500 MΩ < 1 MΩ < 0,1 MΩ
    Shaft length 120 mm 120 mm 120 mm 120 mm
    Shaft diameter 12 mm 12 mm 12 mm 12 mm
    Immersion depth min. 5 mm
    max. 50 mm    		 min. 20 mm
    max. 100 mm    		    
    Needs: Ionic strength-adjusting
    solution MZ/NH3/CN,
    Standard solution ES/NH4    		 Ionic strength-adjusting
    solution ISA/Na,
    Standard solution ES/Na,
    Cable AS/DIN or AS/BNC    		 Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution ISA/FK (Ag-Ionen) or according
    to the operating
    instructions for sulphide
    measurement    		 Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution ISA/FK,
    Standard solution ES/Br
    Addit.
    scope of delivery    		 3 exchange heads, 50 ml electrolyte solution - - Electrolyte
    Connection S7-plug head, without cable S7-plug head, without cable 1 m DIN cable 1 m DIN cable
    Elektrode Ca 800 DIN Cl 800 DIN CN 800 DIN Cu 800 DIN
    Art.-No. 106655 106661 106663 106665
    Ions Calcium Chloride Cyanide Copper/Nickel
    Measuring range 0,02 ... 40.000 mg/l Ca2+ 2 ... 35.000 mg/l Cl- 0,2 ... 260 mg/l CN- (empfohlen 0,2 ... 25 mg/l CN- )
    8 x 10-6 ... 1 x 10-2 mol/l CN-
    (empfohlen 8 x 10-6 ... 1 x 10-3 mol/l CN- )    		 6 x 10-4 ... 6.350 mg/l Cu2+
    Reference electrolyte - - - -
    Diaphragm - - - -
    pH range 2,5 ... 11 2 ... 12 0 ... 14 2 ... 6
    Temperature range 0 ... 40 °C 0 ... 80 °C 0 ... 80 °C 0 ... 80 °C
    Membrane resistance 1 bis 4 MΩ < 1 MΩ < 30 MΩ < 1 MΩ
    Shaft length 120 mm 120 mm 120 mm 120 mm
    Shaft diameter 12 mm 12 mm 12 mm 12 mm
    Immersion depth        
    Needs: Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution ISA/Ca,
    Standard solution ES/Ca    		 Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution ISA/FK,
    Standard solution ES/Cl    		 Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution MZ/NH3/CN    		 Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution ISA/FK
    Standard solution ES/Cu
    Addit.
    scope of delivery    		 Electrolyte and exchange heads Electrolyte Electrolyte Electrolyte
    Connection 1 m DIN cable 1 m DIN cable 1 m DIN cable 1 m DIN cable
    Elektrode F 800 BNC F 800 DIN K 800 DIN NO 800 DIN
    Art.-No. 106666 106667 106671 106675
    Ions Fluoride/Aluminium/
    Phosphate/Lithium    		 Potassium Nitrate
    Measuring range 0,02 mg/l F- (10-6 mol/l) bis Sättigung 0,04 ... 39.000 mg/l K+ 0,4 ... 62.000 mg/l NO3-
    Reference electrolyte - - -
    Diaphragm - - -
    pH range 5 ... 7 2 ... 12 2,5 ... 11
    Temperature range 0 ... 80 °C 0 ... 40 °C 0 ... 40 °C
    Membrane resistance 0,15 ... 0,2 MΩ < 50 MΩ 1 bis 5 MΩ
    Shaft length 120 mm 120 mm 120 mm
    Shaft diameter 12 mm 12 mm 12 mm
    Immersion depth      
    Needs: Bridge electrolyte ELY/BR/503,
    Ionic strength-adjusting solution TISAB,
    Standard solution ES/F    		 Bridge electrolyte ELY/BR/503/K,
    Ionic strength-adjusting solution ISA/K,
    Standard solution ES/K    		 Bridge electrolyte ELY/BR/503/N,
    Ionic strength-adjusting solution TISAB/NO3,
    Standard solution ES/NO3
    Addit.
    scope of delivery    		 Electrolyte and exchange heads Electrolyte and exchange heads Electrolyte and exchange heads
    Connection 1 m BNC cable 1 m DIN cable 1 m DIN cable 1 m DIN cable

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