Innovative Technologies

Portable DO Meter (QXM-DM368)

Portable DO Meter (QXM-DM368)

Measuring range is (0 ~ 20.00) mg/L (ppm) and (0 ~ 200.0)%. Resolution is 0.1/0.01 mg/L (ppm) and 1/0.1%. Accuracy is ±0.10 mg/L for the electrode and ±0.40 mg/L for the instrument. Dimensions are 165×90×32 mm and net weight is 0.31 kg.
Features

• Large LCD screen with controllable white backlight
• Built-in microprocessor chip has intelligent functions such as auto calibration, ATC, data storage, function settings, auto diagnosis, auto power off, and undervoltage prompt, etc.
• It has functions of ATC, auto salinity compensation, and manual pressure compensation
• Polarographic DO electrode, short polarization time (3–5 minutes)

Technical Specification

Specifications

Category Specification
DO Measuring Range (0 ~ 20.00) mg/L (ppm), (0 ~ 200.0) %
DO Resolution 0.1 / 0.01 mg/L (ppm), 1 / 0.1 %
DO Accuracy Electrode: ±0.10 mg/L; Instrument: ±0.40 mg/L
Response Time ≤30s (25°C, 90% response)
Residual Current ≤0.1 mg/L
Temp. Compensation (0 ~ 45)°C (Auto)
Salinity Compensation (0 ~ 45) ppt (Auto)
Pressure Compensation (66 ~ 200) kPa (Manual)
Auto Calibration Air saturated by water, water saturated by air
Electrode Type Polarographic
Temp. Measuring Range (0 ~ 100)°C
Temp. Resolution 0.1°C
Temp. Accuracy 5 ~ 60°C: ±0.4°C; Others: ±0.8°C
Data Storage 200 sets
Power AA batteries (1.5V × 2)
Ambient Temp. 5 ~ 35°C
Ambient Humidity ≤85%
IP Grade IP57 (Dustproof and Waterproof)
Dimensions / N.W. 65 × 120 × 31 mm / 180 g
Shipping Size / G.W. 460 × 300 × 55 mm / 1 kg
Standard Accessories DO electrode, Temperature probe, DO filling solution, Manual