DO Meter (PPB AND PPM), DOG-2082X



Please read the following instructions for safe operation before use.

1.Please observe whether the appearance of the instrument is damaged by the squeeze of the transportation before use.

2.Read the operating manual before use to avoid incorrect wiring .

3.After all wiring is completed, it must be checked carefully before sending power and confirming that the connected equipment is correct.

4.Please avoid the high temperature, high humidity and corrosive environment, and avoid direct sunlight.

5.Avoid using power supplies that cause surge interference. If there is surge interference, please separate the power supply of the instrument from other power sources.


This dissolved oxygen meter is for industrial dissolved oxygen in %,ppm, mg/L, ug/L,ppb and temperature measurement, such as Waste water, drinking water environmental monitoring, fermentation, food production process etc.

Instrument for panel mounted, wall mounted, pipe mounted.

Instrument provide 2 ways of 4-20mA ,max load 500Ω.

Instrument provide 3 ways of relays ,max 5A/250VAC or 5A/30VDC.

Instruments provide RS485 Modbus RTU communication.

With data logger for 500 000times recording data.

Product & Accessory

Instrument includes: one instruments, one user manual, four sets of support(thread, fixed bar, fixed block)


Product DOG-2082X Dissolved Oxygen Meter
Measuring range 0.0 to 200.0% 0.00 to 20.00ppm, 0.0 to 200.0 ppb
Resolution 0.1 0.01 / 0.1
Accuracy ±0.2 ±0.02
Temp. compensation Pt 1000/NTC22K
Temp. range -10.0 to +130.0℃
Temp. compensation range -10.0 to +130.0℃
Temp. resolution 0.1℃
Temp. accuracy ±0.2℃
Current range of electrode -2.0 to +400 nA
Accuracy?of electrode current ±0.005nA
Polarization -0.675V
Pressure range 500 to 9999 mBar
Salinity range 0.00 to 50.00 ppt
Ambient temperature range 0 to +70℃
Storage temp. -20 to +70℃
Display Back light, dot matrix
DO current output1 Isolated, 4 to 20mA output , max. load 500Ω
Temp. current output 2 Isolated, 4 to 20mA output , max. load 500Ω
Current output accuracy ±0.05 mA
RS485 Mod bus RTU protocol
Baud rate 9600/19200/38400
Maximum relay contacts capacity 5A/250VAC,5A/30VDC
Cleaning setting ON:1 to 1000 seconds, OFF: 0.1 to 1000.0 hours
One multi function relay Clean/period alarm/error alarm
Relay delay 0-120 seconds
Data logging capacity 500,000
Language selection English/traditional Chinese/simplified Chinese
Waterproof grade IP65
Power supply From 90 to 260 VAC, power consumption < 5 watts
Installation panel/wall/pipe installation