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Rapid measurement of ðÍ and temperature in aqueous solutions,
wet media and biological tissues in laboratory and field conditions,
control of the electrode system potential. ðÍ is measured electrochemically
by direct potentiometric analysis using an ion–selective glass
ðÍ–electrode.
The instrument allows:
-
interactive control of instrument operation using a dual–line
alpha–numeric LCD display and a user– friendly interface;
-
using ðÍ -electrodes of any type, automatic control of their
characteristics;
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fast automatic one- and two-point calibration with automatic
temperature compensation and reference to ðÍ – temperature
curves for standard buffer solutions stored in the instrument
memory;
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simultaneous display of two measured characteristics and
the current time on the LCD screen;
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audio signaling of ðÍ readings settlement or their going
beyond prescribed limits;
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saving up to 100 data point, the last calibration results
and parameter settings in the instrument memory at the instrument
switch–off for each of 10 electrodes used;
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communications with the computer via an IR port or RS-232
Ñ interface;
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graphic display on the PC screen of current and stored values
of pH, electrode system EMF and studied medium temperature
values;
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protection of the structural elements against corrosive chemicals
and electrolytes due to the solid plasticized front panel
with a built–in keyboard and hermetic design of the set of
contacts;
| Main technical characteristics |
Measurement range:
ðÍ , ðÍ units
EMF, mV
temperature, ° Ñ |
0–14.00
± 4000
5–50
|
Basic absolute measurement error
limit:
ðÍ , ðÍ units
EMF, mV
temperature, ° Ñ |
± 0.005
± 0.1
± 0.1
|
Measurement time *, s |
10–180 |
Power supply voltage, V |
12 |
Current consumption, no more
than, mA |
150 |
Overall dimensions of the meter,
mm |
165 x 80 x 35 |
Weight of the meter, g |
200 |
Power supply: battery,
mains (220 V, 50 Hz, via adapter) |
* Depends on electrode parameters and specified accuracy requirements.
Application: Biology,
Medicine., Sanitary–hygienic and process control. |
The instrument can be used for research and routine analyses
of acidic–alkaline properties of various media.
| 
ðÍ dynamics of a local human skin area
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Manufacturer, delivery
term |
Developed at the Institute for Analytical Instrumentation RAS
( Russian Academy of Sciences), Research and Production Center
of Ecology and Health, Ltd.
Manufacturer: Research and Production Center of Ecology and Health,
Ltd
Delivery term: 2 months from the date of 50 % advance payment
The basic set of equipment supplied: meter (mains operated via
adapter), temperature sensor, combined pH electrode. Optionally
supplied: built–in battery, adapter–charger, data output device
for communications with PC via IR–or RC–232C interface, graphic
display software, data processing software, stand, special–purpose
electrodes.
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