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Overview

The microprocessor-based Tabletop Dissolved Oxygen Meter EZL-TDO121 measures dissolved oxygen in mg/L, ppm, or % saturation and has a water-resistant membrane keypad and a simultaneous temperature display. The full-featured instrument has one-button auto calibration, a temperature measurement range of 0 °C to 100 °C, and a DO accuracy of only ± 0.3 %. It also has automatic pressure compensation of 80 kPa to 105 kPa and temperature compensation of 0 °C to 100 °C, which can improve measurement precision.

Specifications :

Parameters Concentration, Saturation, Temperature
DO Range 0.00 to 20 mg/L (ppm)
Resolution 0.01/0.1
DO Accuracy ± 0.3 %
DO Saturation 0.0 to 200 %
Saturation Resolution 0.001
Saturation Accuracy ± 2.0 % FS
Temperature Measuring Range 0 °C to 100 °C
Temperature Resolution 0.1 °C
Temperature Accuracy ± 0.1 °C
Temperature Compensation Range 0 °C to 100 °C ( Automatic)
Salinity Compensation Range 0.0 to 50.0 g/L
Pressure Compensation Range 80 kPa to 105 kPa (Automatic)
Pressure Resolution 1
Pressure Accuracy ± 2 %
Stability ± 0.07 mg/L/1h
Response Time ≤ 30 s (25 °C, 90 % Response)
Features :
  • - 6.5-inch colour capacitive screen, display all parameters
  • - Long lasting Omron, light touch panel can be used more than 100, 000 times
  • - Auto-calibration, auto-temperature compensation, data storage, USB data export
  • - Auto-stabilization, membrane integrity function, bar code compatibility, and real-time clock
  • - Wireless printing function, self-diagnosis, adjustable screen brightness
  • - Data storage of 500 data sets can be saved and transferable
  • - DO mode have functions of ATC, auto salinity compensation and auto pressure compensation
  • - Polarographic DO electrode can measure temp., salinity and DO
  • - Equipped with DO Electrode calibration sleeve, only need 3-5 minutes of polarization
  • - Combined diaphragm cap, replace sensitive membrane just by screwing new cap
  • - Wireless Bluetooth block
  • - Waterproof and dustproof IP54 housing
Applications:

It is a specialized instrument that is used to test the oxygen content of solutions in: boiler feed water, condensate water and environmental protection sewage, and other industries.

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