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1 DESCRIPTION AND OPERATION
1.1 Purpose
1.1.1 Product name and designation
MARK-302Т dissolved oxygen analyzer
TU 4215-022-39232169-2008
.
1.1.2 The analyzer has been designed to measure the dissolved oxygen
concentration and water temperature.
1.1.3 The analyzer’s scope of application is high-sensitivity measurement of
the mass concentration of dissolved oxygen (in the microgram range). It is used
primarily at heat power facilities for deaerated water monitoring.
1.1.4 The analyzer may also be used to measure the mass concentration of
water-dissolved oxygen and temperature of surface, waste and potable water, and
may be employed by fish farms; chemical, biotechnological and food industries;
educational institutions and ecology branches.
1.1.5 The type of analyzer:
amperometric;
with external poling voltage;
with one sensitive element;
with a digital LCD display;
with automatic temperature compensation;
with flow-type/ dip sensor;
with automatic calibration when the sensor is placed in the oxygen envi-
ronment (air) at temperatures varying b15 °С and +35 °С;
with automatic adjustment for atmospheric pressure during calibration.
1.2 Basic parameters
1.2.1 By resistance to climatic effects, the analyzer version group is B4 in
accordance with GOST 12997-84.
1.2.2 By resistance to mechanical effects, the analyzer version is L1 in ac-
cordance with GOST 12997-84.
1.2.3 The converter unit degree of protection ensured by the casing is IP30
in accordance with GOST 14254-96.
1.2.4 By resistance to atmospheric pressure, the analyzer version group is
Р1 in accordance with GOST 12997-84 (atmospheric pressure between 84 and
106.7 kPa).