Professional
Portable pH Meter for Wine Analysis
HI-98169
is a rugged, waterproof, portable pH meter for wine that measures pH and
temperature of must in winemaking. This meter is supplied with a
specialized pH probe that features
an open junction with Clogging
Prevention System ( CPS™) technology.
- Specialized
pH electrode with CPS
The
first essential step to producing a high quality wine is to measure the pH
of juice and must. A variety of factors and processes depend on pH
including microbial stability, sulfur dioxide effectiveness, malolactic
fermentation performance, protein stability, and sensory attributes.
A
wines microbial and chemical stability is influenced by pH due to the
influence it has on the various forms of sulfur dioxide that will be
present. Sulfur dioxide is responsible for protecting wine against
oxidation and microbial activity. The molecular form of sulfur dioxide is
most effective against microbes and is predominate at lower pH values. As
the winemaking process progresses pH levels can change due to acid
conversion and other metabolic activity. These changes require frequent
monitoring of the pH values and sulfur dioxide levels of wine being stored
or aged.
Backlit Graphic
LCD Display
These
meters feature a backlit graphic LCD with on-screen help. The graphic
display allows for the use of virtual keys to provide for an intuitive
user interface.
pH Calibration
Choose
from seven standard pH buffers and five custom values to obtain up to
five-point calibration and achieve high precision readings with a
0.001 pH resolution and a pH accuracy of ±0.002.
GLP
Comprehensive
GLP functions are directly accessible by pressing the GLP key.
Calibration data, including date, time, and calibration values are
stored with logged data for retrieval at a later time.
Cal Check™
Hanna’s
CAL Check maintains a history of past calibrations and monitors the pH
electrode and buffers during subsequent calibrations for any signs of
wide variances due to a dirty or broken electrode or contaminated pH
buffers. During calibration, users are alerted to problems should they
occur. After calibration, the electrode’s overall condition is
displayed as a percentage.
Data Logging
The
log-on-demand feature allows users to store up to 200 samples that can
later be transferred to a PC with the HI920015 USB cable and HI92000
software.
Auto Hold
Pressing
Auto End during measurement will automatically hold the first stable
reading on the display.
Features
- Backlit graphic LCD Display
- pH Calibration
- GLP Data
- Cal Check
- Data Logging
- Auto Hold
Specifications
| pH
Range |
-2.0
to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH |
| pH
Resolution |
0.1
pH; 0.01 pH; 0.001 pH |
| pH
Accuracy |
±0.1
pH; ±0.01 pH; ±0.002 pH |
| pH
Calibration |
up
to five-point calibration, seven standard buffers available (1.68,
4.01, 6.86, 7.01, 9.18, 10.01, 12.45) and five custom buffers |
| pH
Temperature Compensation |
automatic
or manual from -20.0 to 120.0°C (-4.0 to 248.0°F) |
| pH
Input impedence |
10¹²
Ω |
| mV
Range |
±2000
mV |
| mV
Resolution |
0.1
mV |
| mV
Accuracy |
±2000
mV |
| Temperature
Range |
-20.0
to 120.0°C (-4.0 to 248.0°F) |
| Temperature
Resolution |
0.1
mV |
| Temperature
Accuracy |
±0.2
mV |
| pH/EC
Probe |
FC10483
pre-amplified pH and temperature probe with flat tip, DIN
connector and 1 m (3.3’) cable |
| Logging
Memory |
Up
to 200 samples (100 pH, 100 mV) |
| Connectivity |
opto-isolated
USB with HI92000 software and micro USB cable |
| Automatic
Shut-Off |
user
selectable |
| Calibration
Timeout Reminder |
from
80 to 110% |
| Battery
Type/Life |
1.5V
AA batteries (4) / approximately 200 hours of continuous use
without backlight (50 hours with backlight) |
Product Manual
Brand : Hanna Instruments
