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Product Description

The Labmart LMDO50 Bench Top Dissolved Oxygen Meter is a professional laboratory instrument for measuring dissolved oxygen concentration and oxygen saturation in water. It features a polarographic DO sensor, 0.00–20.00 mg/L or ppm range, 0–200% oxygen saturation, automatic temperature compensation, salinity and barometric-pressure correction, 1- or 2-point calibration, USB connectivity and 500-reading memory.

3. Detailed Product Description

Product Overview

The LMDO50 Dissolved Oxygen Meter is a professional benchtop instrument designed for laboratory measurement of dissolved oxygen concentration and oxygen saturation in water.

The instrument uses a polarographic dissolved oxygen sensor and provides selectable readout in ppm, mg/L or % saturation. Automatic temperature compensation helps maintain measurement accuracy, while manual entry of salinity and barometric pressure enables correction for these parameters.

The LMDO50 supports 1- or 2-point calibration, including calibration at 100% in saturated air or air-saturated water and 0% in a zero-oxygen solution. An automatic endpoint function freezes stable readings for convenient recording.

The meter also provides 500-data memory with date and time, a real-time clock for stored data, calibration reminders, user-configurable stability settings and USB connectivity.

Key Features & Benefits

  • Professional bench top dissolved oxygen meter
  • Polarographic dissolved oxygen sensor
  • DO measurement range 0.00–20.00 mg/L or ppm
  • Oxygen saturation range 0.0–200.0%
  • Selectable ppm, mg/L and % saturation readout
  • 1- or 2-point automatic calibration
  • Automatic temperature compensation
  • Salinity correction 0–50 g/L
  • Barometric pressure correction 60.0–112.5 kPa
  • Automatic endpoint function
  • Calibration-due reminder
  • User help messages
  • Adjustable measurement stability conditions
  • 500-data memory with date and time
  • Built-in real-time clock
  • LCD display
  • Hold function
  • USB interface
  • Low/High stability selection
  • Supplied with DO probe, membrane cap, electrolyte solution and electrode stand

4. Technical Specifications

Specification LMDO50
Product Type Bench Top Dissolved Oxygen Meter
Model LMDO50
Brand Labmart
Sensor Type Polarographic DO Sensor
Dissolved Oxygen Range 0.00–20.00 mg/L or ppm
DO Resolution 0.1 / 0.01 ppm, selectable
DO Accuracy ±0.2 mg/L or ppm
Oxygen Saturation Range 0.0–200.0%
Saturation Resolution 0.1 / 1%, selectable
Saturation Accuracy ±2.0%
Temperature Range 0.0–50.0°C
Temperature Accuracy ±0.5°C
Temperature Compensation Automatic, 0–50°C
Salinity Correction 0–50 g/L
Barometric Pressure Correction 60.0–112.5 kPa / 450–850 mmHg
Calibration 1 or 2 points
Calibration Points 100% in air/air-saturated water; 0% in zero-oxygen solution
Memory 500 data sets with date & time
Display LCD
Hold Function Available
Stability Selection Low / High
Interface USB
Connector 6-pin Mini-DIN
Power Supply DC Adapter, AC 220V, 50/60Hz
Packing Dimensions 310 × 250 × 190 mm
Gross Weight 2 kg
HSN Code 90275090

5. Applications

The LMDO50 is suitable for dissolved oxygen measurement in:

  • Water-quality analysis
  • Environmental water testing
  • Aquaculture research
  • Wastewater laboratories
  • Chemical laboratories
  • Biological laboratories
  • Research and development
  • Educational laboratories
  • Quality-control laboratories
  • General laboratory water analysis

6. Suitable For

The LMDO50 is suitable for:

  • Environmental laboratories
  • Water-testing laboratories
  • Aquaculture laboratories
  • Research institutions
  • Chemical laboratories
  • Biological laboratories
  • Universities and colleges
  • Quality-control laboratories
  • Industrial laboratories
  • Laboratories requiring benchtop dissolved oxygen measurement

7. FAQs

1. What is the LMDO50 used for?

The LMDO50 is used to measure dissolved oxygen concentration and oxygen saturation in water.

2. What is the dissolved oxygen measurement range?

The range is 0.00–20.00 mg/L or ppm.

3. Can the LMDO50 display oxygen saturation?

Yes. Oxygen saturation can be displayed from 0.0–200.0%.

4. What is the DO accuracy?

The specified dissolved oxygen accuracy is ±0.2 mg/L or ppm.

5. Does the LMDO50 compensate for temperature?

Yes. It provides automatic temperature compensation from 0–50°C.

6. Can salinity be corrected?

Yes. Salinity correction is available from 0–50 g/L.

7. Does the meter compensate for barometric pressure?

Yes. Barometric-pressure correction is available from 60.0–112.5 kPa or 450–850 mmHg.

8. How many calibration points are available?

The LMDO50 supports 1- or 2-point calibration.

9. How much data can the instrument store?

The meter can store up to 500 data sets with date and time.

10. Does the LMDO50 have a hold function?

Yes. A hold function is provided for retaining the displayed reading.

11. Does the instrument have USB connectivity?

Yes. The LMDO50 provides a USB interface.

12. What accessories are supplied?

Standard accessories include the main instrument, DO probe, probe membrane cap, USB adaptor, electrode stand, electrolyte solution, instruction manual and test certificate.

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