Desktop Dissolved Oxygen Meter EZL-DDO121 Catalog

Overview

The Desktop Dissolved Oxygen Meter EZL-DDO121 measures dissolved oxygen in mg/L, ppm, or % saturation with a water-resistant membrane keypad and a simultaneous temperature display. The temperature measurement range falls from -10 °C to 110 °C with DO accuracy of ± 0.3 % and ± 0.4 %. An automatic pressure compensation of 80 kPa to 105 kPa can improve measurement precision and built-in automatic temperature compensation (ATC) of 0 °C to 100 °C for temperature variations.

Specifications :

Parameters	Concentration, Saturation, Temperature
DO Range	0.00 to 20 mg/L (ppm)
Resolution	0.01/0.1
DO Accuracy	± 0.3 % ± 0.4 mg/L
DO Saturation	0.0 to 200 %
Saturation Resolution	0.001
Saturation Accuracy	± 2.0 % FS
Temperature Measuring Range	-10 °C to 110 °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
Air Pressure Compensation Range	80 to 105 kPa
Air Pressure Resolution	1
Air Pressure Accuracy	± 2 %
Stability	± 0.07 mg/L/1h
Response Time	≤ 30 s (25 °C, 90 % Response)

Features :

• - 7-inch screen with high resolution of 1024×600
• - Auto-calibration, auto temperature compensation, data storage USB data export, clock, wireless printing, function setup, smart self-diagnosis
• - Adjustable screen brightness
• - Data storage of 1000 sets of test data can be edited and transferred
• - DO mode have functions of ATC, auto salinity compensation and auto pressure compensation
• - Wireless Bluetooth block
• - Optional PC software and cell phone APP
• - Polarographic DO electrode can measure temp., salinity and DO
• - Equipped with DO electrode calibration sleeve, only need 3 to 5 minutes for polarization
• - Combined diaphragm cap, replace sensitive membrane just by screwing new cap
• - IP54 dustproof and waterproof
• - Optional real time data transmission
• - Desktop DO meter is Polarographic instrument and used with magnetic stirrer

Applications:

Laboratory desktop DO meters are useful in aquaculture, water source monitoring, waste water treatment, environmental monitoring, and other industries, as well as in education and scientific research.