Food
and Dairy pH Portable Meter (HACCP)
The
HI-99161 is a Foodcare portable, pH and temperature meter designed
specifically for dairy applications. Monitoring pH in dairy processes is
critical to ensure the quality of dairy products. The FC2023 pH electrode
features a rugged, easy-to-clean, PVDF body with a conical tip, making it
ideal for measurements in semi-solids such as meats and cheeses. The
FC2023 uses a free diffusion sleeve type reference junction which prevents
the typical problems of clogging in viscous liquids such as milk or
condiments.
- Automatic
Temperature Compensation
- Automatic
Two-Point Calibration
- Waterproof
The
measurement of pH in milk is important in testing for impurities,
spoilage, and signs of mastitis infection. While there are a number of
factors that affect the composition of milk, pH measurements can help
producers understand what might be causing certain compositional changes.
pH measurement is commonly performed at various points in a milk
processing plant.
Fresh
milk has a pH value of 6.7. When the pH value of the milk falls below pH
6.7, it typically indicates spoilage by bacterial degradation. Bacteria
from the family of Lactobacillaceae are lactic acid bacteria (LAB)
responsible for the breakdown of the lactose in milk to form lactic acid.
Eventually when the milk reaches an acidic enough pH, coagulation or
curdling will occur along with the characteristic smell and taste of
“sour” milk.
Understanding
the pH of raw milk can also help producers optimize their processing
techniques. For example, in operations that use Ultra High Temperature
(UHT) processing, even small variations from pH 6.7 can affect the time
required for pasteurization and the stability of the milk after treatment.
The
HI-99162 uses the FC1013 amplified pH electrode with PVDF body. This
specialized electrode offers numerous features that improve pH testing
for milk producers. An integrated temperature sensor allows for
temperature compensated pH measurements without the need for a separate
temperature probe. The contact between the bulb’s large surface area and
the milk sample ensures a stable calibration and measurement.
An
integral part of any pH electrode is the reference junction. The reference
junction is a part of the electrode that allows for the flow of ions
located in the reference cell into the sample being tested. It is vital
that this flow occurs in order to complete an electrical circuit, which
ultimately determines the pH value. Any clogging of the junction will
prevent completion of the circuit, resulting in readings that are erratic
or constantly drifting.
The
FC1013 probe utilizes a secondary reference chamber with ceramic outer
junction allowing aqueous silver free electrolyte to flow slowly through
the porous ceramic frit providing accurate readings for aqueous samples.
The
durable PVDF body of the FC1013 ensures pH measurements can be safely
taken on the dairy farm or production floor. The components of the
electrode are also able to withstand a wider range of temperatures to
allow for accuracy during stages such as pasteurization, which requires
heating to temperatures near 72°C
(161°F).
PVDF
Body
The
food grade, PVDF body of the FC1013 is chemically resistant and durable
for accurate, portable measurements.
Spheric
Glass Tip
A
large surface area provides optimal contact between the sensing bulb and
aqueous milk sample.
Built-In
Temperature Sensor
Errors
in calibration and measurement are eliminated with the Automatic
Temperature Compensation provided by the integrated temperature sensor.
Features
- Automatic
Temperature Compensation
- One
or two-point automatic calibration
- BEPS-
Alerts the user of low battery power that could adversely affect
readings
- Compact,
heavy-duty, and waterproof
- Battery
% displayed on start-up
- HELP
feature, displays tutorial messages on LCD
Specifications
| pH
Range |
-2.00
to 16.00 pH; -2.0 to 16.0 pH |
| pH
Resolution |
0.01
pH; 0.1 pH |
| pH
Accuracy |
±0.02
pH; ±0.1 pH |
| pH
Calibration |
automatic,
at one or two points with two sets of standard buffers (pH 4.01 /
7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
| pH
Temperature Compensation |
automatic
‐5.0 to 105.0 °C/23.0 to 221.0 °F |
| pH
CAL Check (electrode diagnostics) |
probe
condition indicator |
| mV
Range |
±825
mV (pH‐mV) |
| mV
Resolution |
1
mV (pH‐mV) |
| mV
Accuracy |
±1
mV (pH‐mV) |
| Temperature
Range |
-5.0
to 105.0°C / 23.0 to 221.0°F |
| Temperature
Resolution |
0.1°C
/ 0.1°F |
| Temperature
Accuracy |
±0.5°C
(up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F
(outside) |
| pH
Electrode |
FC2023
pre-amplified pH probe with internal temperature sensor, quick
connect DIN connector and 1 m (3.3’) cable (included) |
| Automatic
Shut-Off |
user
selectable |
| Battery
Type/Life |
1.5V
(3) AAA / approximately 1400 hours of continuous use |
| IP
Protection |
IP7 |
| Environment |
0
to 50°C (32 to 122°F); RH max 100% |
| Dimensions |
154
x 63 x 30 mm (6.1 x 2.5 x 1.2”) |
| Weight |
196
g (6.91 oz.) |
Product Manual
Brand : Hanna Instruments
