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SE 20, SE 21 |
| Application |
Reference electrodes with internal Ag/AgCl reference system are used in connection with single pH, redox or ion-selective measurement electrodes. Reference electrodes with electrolyte bridge are recommended especially for ion-selective measurements because of the possibility to use sample compatible bridge electrolytes. |
| Specification |
-5 ... 80 °C
glass shaft Ø 12 mm
refillable electrolyte sat. KCl
SE 20:
detachable sleeve junction
shaft length 120 mm
SE 20 /EB:
electrolyte bridge, ceramic diaphragm (inside),
shaft length 160 mm
SE 21:
ceramic diaphragm, shaft length 120 mm
SE 21 /EB:
electrolyte bridge, ceramic diaphragm (inside and outside), stem length 160 mm
SE 20, SE 21: fixed cable 1 m, 4 mm banana plug
SE 20 L, SE 20 /EB /L, SE 21 L, SE 21 /EB /L:
lab plug head S7-system |
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Cable Connections and Connectors |
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SE 11, KE 11 |
| Application |
These Ag/AgCl and calomel reference electrodes feature application in very small volumes and general laboratory use. Some of the electrodes are equipped with a standard taper NS 7 and enable application in closed vessels i.e. in corrosion measuring cells. |
| Specification |
glass shaft Ø 5 mm
shaft length 155 mm
refillable electrolyte sat. KCl
ceramic diaphragm
SE 11: -5 ... 80 °C, Ag/AgCl
KE 11: 0 ... 60 °C, Kalomel
SE 11 /NSK 7, KE 11 /NSK 7:
electrode shaft equipped with a NS-7 glass cone
SE 11, KE 11,
SE 11 /NSK 7, KE 11 /NSK 7: 4 mm socket plug head |
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Cable Connections and Connectors |
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GA 151 |
| Application |
This glass-bodied screened pH sensing half cell must be used in conjunction with a reference electrode for general precision pH measurement. |
| Specification |
-5 ... 80 °C
pH 0 ... 14
isopotential point pH 7 Ag
glass shaft Ø 12 mm
shaft length 120 mm
cylinder membrane
GA 151: fixed cable 1 m, German DIN plug
GA 151 L: lab plug head S7-system |
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Cable Connections and Connectors |
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