| Check the specification in the table and select the most appropriate product for your application. For more information click on the photo. |
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| Type | pH 03 N/K/Dual | pH 03 N/Ring | pH Reiner | pH 40/pH 40 Ring | pH 18 | pH/ORP | rH | LF/LF Ring |
| pH | hex | hex | hex | hex | hex | hex | ||
| Absolute measurement principle |
hex | hex | hex | hex | ||||
| Relative measurement principle |
hex | hex | ||||||
| Redox | hex | hex | ||||||
| Conductivity | hex | |||||||
| CIP/SIP-compliant | hex | hex | hex | hex | hex | hex | hex | hex |
| Dry storage possible | hex | hex | hex | hex | hex | hex | ||
| Electrolyte vessel required | hex | hex | hex | hex | ||||
| Prevents the pipeline’s cross-section from narrowing | hex | hex (Ring) | hex (Ring) | |||||
| Diaphragm | Ceramic (annular flow) |
Ceramic (annular flow) |
Ceramic (annular flow) |
without | without | Ceramic (annular flow) |
without | without |
| Measuring range | Linear 0 to +10 pH * Application -2 to +14 pH ** |
Linear 0 to +10 pH * Application -2 to +14 pH ** |
Linear 0 to +10 pH * Application -2 to +14 pH ** |
3 to 12 pH | 3 to 12 pH | -1,200 to +1,500 mV 0 to 10 pH |
-1,200 to +1,500 mV | 0.01 to 2,000 mS/cm |
| Operating temperature | 0 to +140°C *** | 0 to +140°C *** | 0 to +140°C *** | 0 to +140°C *** | 0 to +140°C *** | 0 to +140°C *** | 0 to +140°C *** | -25 to +200°C |
| Operating pressure | -1 to +9 bar *** | -1 to +9 bar *** | -1 to +6 bar *** | -1 to +40 bar *** | -1 to+15 bar *** | -1 to +9 bar *** | -1 to +40 bar *** | -1 to +40 bar *** |
| Ex. protection | II 1/2 G EEx ia IIB T6 or II 2G EEx ia IIC T6 |
II 1/2 G EEx ia IIB T6 or II 2G EEx ia IIC T6 |
without | II 1/2 G EEx ia IIB T6 or II 2G EEx ia IIC T6 |
without | II 1/2 G EEx ia IIB T6 or II 2G EEx ia IIC T6 |
II 1/2 G EEx ia IIB T6 or II 2G EEx ia IIC T6 |
II 1/2 G EEx ia IIB T6 or II 2G EEx ia IIC T6 |
* Depends on temperature
** Depends on alkali error
*** Higher pressure/temperature on request
