Online Dissolved Oxygen Controller LODC-T2010

Introduction

Online Dissolved Oxygen Controller features 1 to 2 points dissolved oxygen calibration system, and 4 to 20 mA output signal transmitter. The large and clear back light displays Calibration and setup values, temperature values, (automatic temperature compensation) values, high and low limit of measurement. It measures the amount of dissolved oxygen in mg/l, ppm units or in % of saturation. The accuracy of measurement is improved by manual salinity and barometric pressure compensation mode. This dissolved oxygen meter is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Used in water treatment applications across waste water plants, filtration systems, RO treatment water plants, Agriculture, and Aquaculture industry.

Specifications

Dissolved oxygen range	0.0 to 20.0 mg / L (or ppm)
Dissolved oxygen Calibration points	1 - 2 points
Dissolved oxygen accuracy	± 0.5 mg / L
Dissolved oxygen resolution	0.1 mg / L
% of saturation of oxygen range	0.0 to 200.0 %
% of saturation of oxygen accuracy	± 10 % F.S. ± 2.0%
% of saturation of oxygen resolution	0.001
Calibration solutions	Saturated anhydrous sodium sulfite solution and air saturated water
Temperature compensation range	0 to 40 °C, 32 °F to 104 °F
Barometric pressure correction	60.0 to 112.5 kPa, 450 to 850 mmHg
Salinity correction	0 - 35 g / L
Signal output	4 to 20 mA
Load	Maximum 500 Ω
Low and high alarm limits	1.00 to 18.00 mg/L (selectable)
Connection Interface	RS485
Connection terminal	Detectable screw terminals
Display	screen
Ambient Temperature	<60°C
Relative Humidity	<80%
Power supply	DC 24 V
Dimension (L x W x H)	96 × 96 × 75 mm
Weight	350 g

Features

Equipped with a polarographic electrode

Use of Zero oxygen solution, air saturated water for calibration

1 to 2 dissolved oxygen calibration points

Controller with 4 multifunctional keys with names and symbols

mode for accurate readings over entire range

Low and high alarm limits set automatically activate an external device

System menu allows setting up to 10 parameters

Reset features to resumes all setting back to default

FAQs

1. What are the key factors to consider when selecting this dissolved oxygen meter for laboratory use?

When selecting this dissolved oxygen meter, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this dissolved oxygen meter be calibrated to ensure accurate results?

It is recommended to calibrate this dissolved oxygen meter at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this dissolved oxygen meter?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this dissolved oxygen meter be used with different types of samples, and are there any compatibility considerations?

Yes, this dissolved oxygen meter can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the dissolved oxygen meter malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.