Portable Digital Do Meter

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Hangzhou Lohand Biological Technology Co.,Ltd

Zhejiang, China

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A new type of waterproof water treatment instrument satisfies the demand of most users with a high rate between price and performance. There are three types: portable dissolved oxygen (DO) meter LH-D9, portable PH/ORP meter LH-P5, and portable conductivity meter LH-C6 with the classification of waterproof IP67 and shockproof design. It is suitable for the fields of monitoring under rugged environments and underwater works.

Parameter:

DO meter
Mode	Saturation%	Oxygen (Mg/L)	Temperature
Range	0 to 199.9	0~19.99	0.0-50.0℃(32-122℉)
resolution	0.1	0.01	0.1℉ (0.1℃)
Accuracy	±1.5% FS	±1.5% FS	±0.9℉(±0.5℃)
Responding Time	1min	1min	1min
Calibration	At most 2 points
Temperature Compensation	Auto (ATC) from 32-122℉ or 0-50℃
Operating Temperature	32-122℉(0~50℃)
Battery	2*AA
Probe	Plastic electrode

Portable Digital Do Meter
Power on
1. Press POWER once to turn the meter on, and wait for 5 min (electrode polarization)
2. Press POWER again to turn the meter off.
NOTE: All operations are operational when the meters' power is on.
Working mode
MODE， enter into a different mode ：
1. Enter measurement mode as soon as the power is on.
2. Press MODE once，”%” flash on the Second Display, Saturation mode
3. Press MODE twice，”mg/L” flash on the Second Display, Oxygen content mode
4. Press MODE three times “℃” flash on the Second Display, Degrees Celsius temperature unit mode.
5. Press MODE four times， and “℉” flash on the Second Display, Degrees Fahrenheit temperature unit mode.
6. Press MODE five times， “Calibrating” flash on the Second Display， Calibration mode.
7. Press MODE six times， “R” flash on the Main Display， and Restore factory default mode.
8. Press MODE seven times， “P.1” flash on the Main Display， Salinity mode.
9. Press MODE eight times， “P.2” flash on the Main Display， Pressure mode.
HOLD/SET， when in the Measurement Mode, it acts as a HOLD function.
When in the Setting Mode, it acts as a Confirmation or Selection function.
Portable Digital Do Meter
What is Do?
DO: Oxygen saturation (symbol SO2) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. The standard unit of oxygen saturation is percent (%).

A Portable DO meter can test the dissolved oxygen in water, which is used in many fields like aquaculture, water treatment, environmental monitoring, river regulation, and so on.

Portable Digital Do Meter
Features