Product Overview
FC202D is specifically designed for measuring milk pH and pH in semi-solid foods (including dairy products), making it an essential tool for kitchens or food laboratories. This pH electrode features a 1 m cable and a 7-pin DIN connector, and is designed for use with the HI99161 portable food and dairy pH meter.
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The PTFE body is easy to clean.
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Conical electrode tip for rapid penetration into food and dairy products.
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Ideal for small food and dairy operations as well as enthusiasts.
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Hanna Instruments offers a wide variety of pH electrodes for use in many different applications. The type of glass used to sense pH, bulb shape, body material, connection type, reference type, and electrolyte used are just some of the design considerations.
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FC202D is an amplified pH electrode with a built-in temperature sensor; ideal for measuring the pH of food. The probe features low-temperature (LT) glass, a conical bulb, a food-grade PVDF body, and an open junction design with viscolene gel electrolyte.
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Low-Temperature Glass Formulation
Compared to general-purpose (GP) glass with a resistance of approximately 100 megohms, the glass tip uses a special LT glass formulation with a resistance of approximately 50 megohms. This is beneficial because many foods are stored at low temperatures. As the temperature of the glass in the sample decreases, the resistance of LT glass will increase, approaching the resistance of GP glass at ambient temperature. If GP glass is used, the resistance will increase above the optimum resistance for the high-impedance input of the pH meter. FC202D is suitable for samples from 0 to 50°C.
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Conical Glass Tip
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The conical tip design allows penetration into solid, semi-solid, and emulsified samples for direct pH measurement in foods, including meat, cheese, yogurt, and milk.
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PVDF Body
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Polyvinylidene fluoride (PVDF) is a food-grade plastic that resists most chemicals and solvents, including sodium hypochlorite. It has high abrasion resistance, mechanical strength, and resistance to UV and nuclear radiation. PVDF also resists fungal growth.
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Open Reference
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Suspended solids and proteins found in food can clog traditional ceramic reference junctions. This clogging will impede the measurement circuit between the indicating electrode and the internal reference, resulting in slow response times, unstable readings, and frequent electrode replacement. The open junction design consists of a solid gel interface (viscolene) between the sample and the internal Ag/AgCl reference. This interface not only prevents silver from entering the sample, but also makes it less prone to clogging, resulting in fast response and stable readings.
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DIN Connector
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FC202D uses a DIN connector, which can only be used with the HI99161 portable pH/temperature meter.
| Specification Name | Detail |
|---|---|
| SKU | FC202D |
| Reference | single, Ag/AgCl |
| Junction / Flow Rate | open |
| Electrolyte | viscolene |
| Max Pressure | 0.1 bar |
| Range | pH: 0 to 12 |
| Recommended Operating Temperature | 0 to 50°C (32 to 122°F) - LT |
| Tip / Shape | conic (6 x 10 mm) |
| Diameter | 6 mm |
| Body Length | 75 mm / 130 mm |
| Temperature Sensor | yes |
| Matching Pin | no |
| Amplifier | yes |
| Body Material | PVDF |
| Cable | 7-pole; 1 m (3.3') |
| Recommended Use | dairy, milk, semi-solid foods, yogurt |
| Connection | DIN |
Case Studies
Municipal Wastewater Treatment · Hanna — Stock Configuration Case
Project Overview
The site is the inlet, biological and outlet stages of a municipal plant. The customer wanted Hanna properly configured on the existing plant, with the aim of covering portable and laboratory water testing with Hanna instruments.
Technical Challenges
What actually causes trouble is high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. All of this means the Hanna configuration has to involve selected by parameter set, accuracy and field portability.
Configuration
Supply and installation were organised through the stock channel: configuring from stock and delivered quickly. On site this meant selected by parameter set, accuracy and field portability, checked line by line against: stable compliance with Grade 1A discharge limits and online data reporting.
Performance
After commissioning the outcome is results available on site, reducing lab re-checks, and the readings are now used for process tuning.
Food & Beverage · Hanna — Stock Configuration Case
Site Conditions
This is a Food & Beverage customer whose plant is at dosing, pasteurising, filling and CIP stages. The main task was covering portable and laboratory water testing with Hanna instruments.
The Problem
The difficulty lies in syrups, dairy and beverages that scale easily, under strict hygienic requirements; at the same time frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. Specification therefore means selected by parameter set, accuracy and field portability.
What We Did
We took a stock channel approach — configuring from stock and delivered quickly. Delivery was built around selected by parameter set, accuracy and field portability, with point-by-point checks on: food-safety and hygienic design per 3-A / EHEDG.
Operating Outcome
In service the system performs as intended — results available on site, reducing lab re-checks, with routine maintenance falling noticeably.
Chemical & Pharmaceutical · Hanna — Stock Configuration Case
Application Context
reactors, metering vessels and finished-product tanks is a typical Chemical & Pharmaceutical duty. The project started from Hanna, focusing on covering portable and laboratory water testing with Hanna instruments.
Process Constraints
corrosion plus Ex protection shortens instrument life and makes downtime costly, and highly corrosive media with solvents and crystallisation, partly in explosive atmospheres only amplify it. The Hanna specification must therefore cover selected by parameter set, accuracy and field portability.
Delivery Approach
Delivery was handled as the stock channel — configuring from stock and delivered quickly. Execution centred on selected by parameter set, accuracy and field portability, together with Ex certification and GMP traceability of records.
Field Results
Operation shows the benefit clearly — results available on site, reducing lab re-checks, with confidence in this measuring point improving markedly.
Power & Energy · Hanna — Stock Configuration Case
Customer Profile
The typical setting in Power & Energy is boiler feedwater, turbine condensate and FGD/DeNOx systems. The measuring point is Hanna; the focus is covering portable and laboratory water testing with Hanna instruments.
Key Difficulties
Conditions are high temperature and pressure with both steam and saline water and, on top of that, drift under high temperature and pressure, with very costly unplanned outages, which a standard configuration cannot handle for long. The design therefore starts with selected by parameter set, accuracy and field portability.
Implementation
The scope ran through the stock channel: configuring from stock and delivered quickly. Technically it hinges on selected by parameter set, accuracy and field portability, and on these requirements: compliance with power-industry codes and unit availability targets.
Customer Benefit
In practice this means results available on site, reducing lab re-checks, which cut the workload on the site maintenance team.
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