FEATURE
• Sterilizable / Autoclavable
• Gel electrolyte
• Sterilization Temperature up to 130°C
• 35 Steam Cycles - Ensures fast & accurate long life in actual process
conditions
• Fast, Accurate, Improved Stability, Reliable
• 120, 170, 220, 270 and 320 mm Length available
• Compatible with any make pH Transmitter
DESCRIPTION
Designed for accuracy and stability in a heat intensive application,
the new MS pH 04 Ferm series pH sensors are optimized for
autoclaving and steam sterilization in biotechnology applications. MS
pH 04 sensors exhibit unparalleled stability after exposure to high
temperature sterilization. The reference electrode uses a silver silver
chloride sensor in combination with a new gelled potassium chloride
electrolyte to provide a stable reference potential through the single
ceramic reference junction.
PRINCIPLE
Why is pH Measurement required ?
To check the acidic or alkaline nature of aqueous solution. pH (Potential Hydrogen) is unit of
measurement, used to determine the Acidity or Alkalinity of an aqueous solution. Practical pH scale
for industrial instrumentation ranges from 0 to 14 pH. The acidic substances range from 0 to 6 and
on the other end are the alkaline substances, which range from 8 to 14, with pH 7 being neutral,
this is the pH of pure water which is neither very acidic nor very alkaline, is said to be neutral.
How is pH measured ?
Although everyone is familiar with Litmus paper, the only reliable way to measure pH is using
Potentiometric Combination electrodes. These electrodes develop a millivolts output corresponding
to pH value of solution which is directly proportional to the Free Hydrogen ion concentration in an
aqueous Solution. These generated raw mill volts are fed to MS pH 04 Ferm where it is processed
by amplifier & reading is displayed on meter
TECHNICAL SPECIFICATION
pH Range : 0 ~ 14 pH
Body : Glass
Temperature Range : 0 to 130°C
Operating Pressure : 6 Bar
Electrolyte : Gel
Reference Junction : Single Ceramic Junction
Sterilization temperature : 130°C
Shaft Length below Threads : 120 mm (Other Lengths on request at Extra Cost)
Shaft Diameter : 12 mm
Electrical Connection : S8
Process Connection : PG 13.5
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