- 240 x 320 Color Display
- Simultaneous dual graph display and real-time logging
- USB and RS232 for Computer Compatibility
- Multi-language interface
- GLP data
- Manual or automatic temperature compensation
- Relative mV scale
- Small footprint
- Menu screens are informative and navigation is intuitive
- Electrode holder (included) holds 3 probes and screws securely
into the base of the Research Grade Meter series
pH Features
- Exclusive Calibration Check™
- 5 point calibration with standard
and custom buffers
ISE Features
- Direct calibration and
measurement in multiple units
- Incremental methods: Known
addition, Known subtraction,
Analyte addition and Analyte
subtraction
EC Features
- EC, resistivity, TDS and salinity
ranges
- Auto recognition of probe type
(2 or 4 ring, and nominal cell
constant)
- Extended range from
0.001 μS/cm to 1 mS/cm
- Stages 1, 2 and 3 USP mode
- 3 salinity scales: Practical
salinity, percent salinity and
natural sea water
- Linear and natural water
temperature compensation
|
Proper calibration of both the pH meter
and pH electrode system is critical in
order to achieve reliable results. HANNA’s
exclusive Calibration Check™ system
includes several features to help users
reach that goal.
- Each time a pH calibration is performed,
the instrument compares the new
calibration with the previous one. When
this comparison indicates a significant
difference, the message alerts the user
to either clean the electrode, check the
buffer or both.
- When measurements are taken too far from the calibration points, the instrument will warn the user with a message on the LCD.
- The condition of the pH electrode after calibration is shown on the display to track functionality.
- To avoid taking readings with old calibrations, the instrument can be set to automatically remind the user at defined intervals when
the instrument needs to be recalibrated.
- For reporting purposes, GLP information is available at a push of a button.
|
| Ion concentration determinations with
ISE’s can be made faster and easier using
the streamlined Incremental Methods.
Incremental methods involve adding a
standard to a sample, or sample to a
standard. A mV change occurs due to this
addition. Historically the user would then
use mathematical equations to determine
the ion concentration of the sample;
but with the HI 4522 and HI 4222,
sample concentrations are calculated
automatically and then logged into an ISE
method report. 200 reports can be saved
for future recall. The entire process can be repeated on multiple samples without having to reenter the parameters used to calculate
the unknown sample concentration.
Incremental Method techniques can reduce errors from variables such as temperature, viscosity, pH or ionic strength. The electrodes
remain immersed throughout the process thus reducing measurement time as well as eliminating sample carry over and its associated errors.
Known Addition, Known Subtraction, Analyte Addition, and Analyte Subtraction methods are the standard method choices provided. |
| HANNA’s HI 4522 and HI 4521 can be
used to perform all 3 stages of United
States Pharmacopeia testing requirements
for water quality (USP <645>).
The instruments give clear instructions on
how to perform each stage and automatically
check that the temperature, conductivity
and stability are within USP limits.
Comprehensive results are shown once the
samples have passed any one of the three stages. These results are displayed on a single screen at the end of the test. Up to 200 reports
can be saved for future recall. |
| HI 4221-01 (115V) and HI 4221-02 (230V) |
are
supplied with glass body pH electrode,
temperature probe, power adapter, pH 4 and pH 7
buffer solutions, electrode refilling solution,
electrode holder and instructions. |
| HI 4222-01 (115V) and HI 4222-02 (230V) |
are
supplied with glass body pH electrode,
temperature probe, power adapter, pH 4 and pH 7
buffer solutions, electrode refilling solution,
electrode holder and instructions. |
| HI 4521-01 (115V) and HI 4521-02 (230V) |
are
supplied with 4-ring EC probe, glass body pH
electrode, temperature probe, power adapter, pH
4 and pH 7 buffer solutions, electrode refilling
solution, electrode holder and instructions. |
| HI 4522-01 (115V) and HI 4522-02 (230V) |
are
supplied with 4-ring EC probe, glass body pH
electrode, temperature probe, power adapter, pH
4 and pH 7 buffer solutions, electrode refilling
solution, electrode holder and instructions. |
| ELECTRODES |
| HI 1131B |
Refillable pH electrode with BNC
connector and 1m (3.3’) cable |
| HI 76312 |
Platinum 4-ring Conductivity/TDS
probe with temperature sensor
and 1 m (3.3') cable |
| HI 7662-T |
Temperature probe |
| SOLUTIONS |
| HI 5004 |
pH 4.01 buffer solution, 500 mL |
| HI 5007 |
pH 7.01 buffer solution, 500 mL |
| HI 5010 |
pH 10.01 buffer solution, 500 mL |
| HI 54710 |
pH 4.01, pH 7.01 and pH 10.01
buffer solution, 500 mL ea. |
| HI 70300L |
Electrode storage solution, 500 mL |
| HI 7061L |
Electrode cleaning solution, 500 mL |
| ACCESSORIES |
| HI 76404N |
Electrode holder |
| HI 92000 |
Windows® compatible software |
| HI 920010 |
RS232 cable for PC connection |
| HI 920013 |
USB cable for PC connection |
| HI 190M * |
Magnetic stirrer with ABS plastic
cover max 1000 rpm, Speedsafe™ 110/115V, 50/60Hz |
| HI 200M * |
Magnetic stirrer with AISI stainless
steel cover, max 1000 rpm,
Speedsafe™ 220/240V, 50/60Hz |
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