Portable PPB Dissolved Oxygen Meter,DOS-118A

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#Portable PPB Dissolved Oxygen Meter DOS-118A

#DOS-118A PORTABLE PURE WATER DISSOLVED OXYGEN METER

DOS-118A ppb level portable dissolved oxygen meter is electrochemical analyzer of polarographic measuring principle. Measurement of oxygen in the gas, can also measure the dissolved oxygen  in aqueous solution.

The oxygen concentration in the gas (unit%) used for the measurement of grain, fruit, herbs warehouses, tunnel, air defense and naval vessels, also used to measure the pulmonary function of the medicine, power station, metallurgy, chemical and other boiler combustion process oxygen concentration in the gas phase.

Dissolved oxygen (unit mg/L) is dissolved in water or liquid molecular oxygen, its content is an important indicator of water quality merits. The measurement of dissolved oxygen is the indispensable monitoring project of power generation, boiler, aquaculture, water protection, water supply, sewage treatment and other departments.

Technical indexes

Product DOS-118A PORTABLE PURE WATER DISSOLVED OXYGEN METER (ppb level)
Measuring range Resolution: 0.0001mg/L
Accuracy: 0.001 mg/L (automatic switch)
Indication error ± 0.001mg/L
Repeatability ≤0.001mg/L
Response time Not more than 30s (90%, 25 ℃)
Zero values (error) (.0000-.1999) mg/L ≤0.001 mg/L
Working conditions a) Ambient temperature: 5-35℃
b) Relative humidity: ≤85%RH.
c) Power supply: DC3V
d) Measured medium temperature: 5-40℃
e) It should be no electromagnetic interference influence the normal operation of the instrument
f) Atmospheric pressure: 86-106 kPa
g)Power supply environment and good air circulation, without affecting the accuracy of detection of interference gas.
h) Power consumption: two No. 5 batteries run continuously for 365 days. (UPS)
I) Maintenance cost: free maintenance
Power supply voltage changes effect amount Instrument indication error 1/5.
Ambient temperature change effect amount Instrument indication error 2/3.
Oxygen electrode life More than one year.
Power dissipation <2mW
Size 25 x 68 x 133mm
Weight 230g
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