Hangzhou Qiwei Instrument Co., Ltd. is one of the leading manufacturers and suppliers of industrial online do meter in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk industrial online do meter in stock here from our factory. We also accept customized orders.
product key technologies
The industrial online DO meter is an intelligent online continuous real-time monitoring instrument, and the sensor adopts polarographic film-covered dissolved oxygen electrode. The instrument is widely used in power plants, petrochemical industry, metallurgy electronics, mining industry, paper industry, biological fermentation, medicine, food and beverage, environmental protection water treatment, breeding and other industries.
Technical parameters
|
Measurement range |
0~20.00 mg/L |
|
Resolution |
0.01 mg/L |
|
Error |
±0.3 mg/L |
|
Power Supply |
220V±10% 50Hz |
|
Power Consumption |
≤ 3 W |
|
Ambient Conditions |
(1) Temperature 0 ~ 60 °C (2) Humidity ≤ 85% RH |
|
Size |
96×96×110mm |
|
Opening Size |
92×92mm |
The main menu interface shows
Settings Menu:
1. Unit setup
2. Parameter settings
3. Instrument calibration
4. Control parameters
5. Transmission parameters
6. Communication Settings
7. Factory Settings
Instrument calibration
This instrument adopts two-point calibration. Select instrument calibration in the setting menu, enter with "OK" key, zero calibration first and then saturation calibration. Please prepare a cup of anaerobic water and a cup of saturated dissolved oxygen water first (for the method of preparing anaerobic water and saturated dissolved oxygen water, see Annex 1 for details).
Zero calibration (zero calibration for anaerobic water):
Clean the electrode in clean distilled water (tap water can be replaced), put it in anaerobic water , stir with the electrode, and press the "OK" key for zero calibration when the value shows stability.
Preparation of anaerobic water:
Take a pack of reagent A, add 30ML distilled water or tap water, cover and shake well. (The lid is tightly closed and can be stored in the dark for a month)
Saturated dissolved oxygen calibration:
Clean the electrode in clean distilled water (tap water can be replaced), press the switch key to select the saturation calibration option, put in saturated dissolved oxygen water, stir with the electrode, and press the "OK" key for saturation calibration when the value shows stability.
Preparation of saturated dissolved oxygen water:
Take about 500 ML of tap water, aerate it with an oxygen pump for 5 minutes, then start the calibration.
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