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Oxygen meters

Laboratory or portable oxygen meters are used to measure dissolved oxygen in water and other solutions. Their purpose is to determine the saturation of a solution with oxygen or biological oxygen demand (BOD), an indicator of the biodegradable material in the sample. Dissolved oxygen meters work in conjunction with LDO Intellical fluorescent optical sensors to measure the amount of oxygen gas dissolved in a water sample. Dissolved oxygen is an important water quality parameter that affects marine life, the taste of drinking water and the corrosivity of the water sample. Applications include analysis of groundwater, wastewater, aquariums and fish farms. Both individual devices and devices complete with sensors with cables of various lengths from 1 to 30 meters are available to order.

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Type

Industrial 1 Laboratory 3 Portable 6 Portable-field 12

Industry

Pulp and paper 10 Power generation 17 Chemical 16 Municipal 14 Food and Beverage 23 Ecology 7 Pharmaceutical 8 Semiconductor 2

Brand name

Centec 2 Hach 13 Haffmans Pentair 4 Orbisphere 3

Parameters

Ammonia 6 Ammonium 7 BOD 4 Carbon dioxide 2 Chloride 6 Conductivity 10 Dissolved oxygen 22 Fluoride 6 Fluorine 1 Nitrate 7 ORP (redox potential) 9 Oxygen 1 Resistivity 2 Salinity 7 Sodium 6 TDS (Total Dissolved Solids) 9 TPO 1 pH 11

Measurement Range

0 - 14 pH 8 0 - 2000 ppb 1 0 - 25000 ppb O2 1 0.0 - 2,000 ppb 1 0.0 - 2000 ppb O2 1 0.05 - 20.0 mg/L O2 1 1 ppb - 2 ppm 2

Accuracy

± 0.05 г/л 1 ± 1 ppb 1

Power supply

24 VDC 1 battery 2

Number of inputs

single-channel 8 three-channels 1 two-channel 7

Operating temperature range

-5 - 45 °C 1 -5 - 55 °C 2 -5 - 100 °C 1 -5.0 - 40.0 °C 1 -5.0 to 40.0 1 0 - 60 °C 8

Measurement Range (2)

0 - 4,2 % O2 2 0 μS/cm - 200 mS/cm 1 0.1 - 45.0 mg/l 1 2.0 - 10.0 g/L CO2 1 ±1200 mV 5

Measurement Range (3)

0 mg/L - 50 g/L NaCl 5

Version

multiparameter 15 single parameter 1

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Dual input meter HQ40D with dissolved oxygen probe LDO101 + conductivity cell CDC401

Portable two-channel multi-parameter device HQ40D for measuring pH, ORP, conductivity, TDS, resistivity, salinity, dissolved oxygen and BOD complete with laboratory sensor for dissolved oxygen LDO101 and conductivity sensor CDC401, cable length 1 m.

SKU: HQ40D.99.201301