InPro 4800(i) & InPro 4881i pH Probes for Harsh Chemicals

InPro 4800(i) & InPro 4881i pH Probes

High tolerance to harsh chemical environments

The InPro 4800 family with substantially prolonged operational life in the presence of aggressive chemicals or at high operational pressures, significantly reduces electrode maintenance and replacement costs in industry. The probe offers reliable measurements in oxidising media, strong acid or alkali solutions, sulfide-bearing media etc.

Specifikacije - InPro 4800(i) & InPro 4881i pH Probes
pH-range 0 - 14 pH InPro 4800(i)1 - 14 pH InPro 4801(i), InPro 4802(i), InPro4881i
Temperatura -5 to 130°C (23 to 266°F)
Tlak 12 barg @ 130°C (174 psig @ 266°F)
Cable Connection ISM: K8S; Analog: VP
Process connection Pg 13.5 thread
Reference system Ag/AgCl system, pressure-compensated double gel-electrolyte chambers
Vrsta spoja Exterior:PTFE annular diaphragm Interior: Non-flow ceramic diaphragm
Referenčni elektrolit Gel
Dolžine 120mm, 225mm, 425mm
Premer cevke 12mm
Materiali cevke InPro 480x(i); GlassInPro 488xi:Titanium
Temperature sensor ISM: DigitalAnalog: Pt100 or Pt1000
Sterilizable No
Autoclavable No
pH membrane Various by applications
Solution Ground InPro 480x(i): PlatinumInPro 488xi: Titanium
ATEX Certification SEV 14 ATEX 0168 XEx ia IIC T6/T5/T4/T3 Ga/Gb
FM approval IS/ I, II, III /1 /ABCDEFG /T6
IECEx Certificate of Conformity IECEx SEV 14.0025XEx ia IIC T6/T5/T4/T3 Ga/Gb
Analogni ali ISM (pametno upravljanje senzorjev) ISM
Features and Benefits
Cut maintenance and replacements costs
  • This is due to a unique technical design, with a very long diffusion path in a double electrolyte chamber with a dirt-repellent annular junction (PTFE).
ISM ("Intelligent Sensor Management®")
  • METTLER TOLEDO’s new and innovative, digital “Intelligent Sensor Management®” concept provides “Plug and Measure” functionality. ISM simplifies and improves the operation of process analytical systems from initial installation to maintenance to sensor exchange. ISM technology provides you with advanced diagnostic functions, lower maintenance costs and reduces the risk of sensor failure, while also improving process reliability. More information about ISM
Allows highest operational pressure over a wide temperature range
  • The very high pressure specification is valid in the whole temperature range, see specification.
Compliance with safety regulations for Ex-classified zones
  • The electrode is Ex-certified and can be used for processes in Ex-classified zones.
Flat membrane for abrasive media increases process safety
  • The InPro4801SG with a flat glass membrane and solution ground is the optimal choice for media with particles and fibers. Ground loops can be avoided with the solution ground, which can also be used as a diagnostic tool.
Solution ground (SG) as an option
  • The SG feature as an entire electrode body coating or as a measuring point on a pH-electrode, will improve grounding and effectively eliminate the risk of electrostatic interference. SG also improves our advanced diagnostic functions, and makes parallel pH/redox measurement possible.
New rugged construction with titanium shaft
  • The new 4881i electrode provides exceptional chemical and mechanical resistance thanks to the titanium shaft and stainless steel thread.




Application Note: Optimized Control of Sour Water in Petrochemical Applications
Application Note - Control of sour water without damaging the pH electrode
Application Note: Improve Your Pulp & Paper Process Further with ISM Technology
Many years of experience in the field of industrial measurement systems form the basis of METTLER TOLEDO’s competence. Now with its ground-breaking IS...
Easy ISM Sensor Management in Breweries
Application Note - iSense ISM Asset Suite the professional software tool to implement innovative and efficient maintenance concepts with pre-calibrate...
pH Measurement in Amine-Based Quench Water
To control the separation and to minimize corrosion, it is important to maintain the right pH level. Therefore neutralizing agents are injected in the...
pH Control in Sugar Refineries
The process of refining sugar from cane or beets involves the following steps: washing, grinding, juicing, liming, carbonation, filtration, sulfitatio...


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InPro 4800(i) & InPro 4881i pH Probes
USP Class VI
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