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DISSOLVED OXYGEN METER (HANDHELD) 831

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DISSOLVED OXYGEN METER (HANDHELD) 831 Specification

Core Components
DO Electrode Probe, Main Unit, LCD Display

Automation Grade
Manual

Feature
Auto Temperature Compensation, Salinity Correction, Compact Design

Measurement Range
0 ~ 19.9 mg/L

Capacity
Not Specified

Model No
831

Temperature Range
0C to 50C

Accuracy
0.1 mg/L

Voltage
230V AC (adaptable to battery operation)

Power Source
9V Battery

Frequency
50 Hz

Equipment Materials
High-Quality Plastic ABS Body

Type
Handheld

Display Type
Digital

Dimension (L*W*H)
230 mm x 75 mm x 50 mm

Weight
Approximately 300 g

DO Electrode Type
Polarographic Sensor

Data Hold Function
Yes

Sample Volume
Minimum 50 mL

Display Size
2.5" Large LCD

Sampling Rate
Instant / Periodic

Operating Humidity
<80% RH

Response Time
<30 seconds for 95% change

Carrying Case
Supplied

Recommended Applications
Wastewater, Aquaculture, Drinking Water Testing, Environmental Monitoring

Buzzer Alarm
Indication for Calibration Completion

Connector Type
BNC, Easy Probe Replacement

Backlight Function
Yes

Calibration
Single or Multi-Point Calibration

Low Battery Indicator
Available

About DISSOLVED OXYGEN METER (HANDHELD) 831

FEATURES

· Highly Stable and Accurate

· DO measurements

· 3½ Digit LCD Display

· ABS Plastic Body

· Rugged Portability

Designed in ABS Plastic to provide the rugged portability matched in fields with the accuracy demanded in the laboratory. A handy carrying case holds every thing needed in the field operation. The instrument measures DO of any solution in the fields, laboratory or plant.

SPECIFICATIONS : -

Range	0 - 20 ppm
Resolution	0.1 ppm
Accuracy	± 0.1 ppm
Temp. Comp.	0 - 50 °C (Manual)
Calibration	Manual
Sensor	Gold/Silver Amperometric DO Probe
Display	3½ Digit LCD
Power	9 V DC Battery
Dimensions	180 x 85 x 30 mm (L x B x H) (Approx.)
Weight	250 gm (Approx.)

Note : Specifications are subject to change due to continuous improvements.

Rapid, Accurate DO Measurement

The 831 Handheld Dissolved Oxygen Meter ensures swift and reliable testing with its high-precision polarographic sensor and user-friendly operation. Achieving 95%% accuracy in less than 30 seconds, the device is suitable for on-site analysis where immediate results are required. Its large digital display, instant or periodic sampling modes, and robust carry case make it the preferred choice for professionals in demanding environments.

Designed for Portability and Versatility

Engineered for field and laboratory use, this meter features a compact, lightweight design and battery-powered operation for complete mobility. Its easy BNC connection, fast probe replacement, and adaptable calibration (single or multi-point) fit diverse testing needs. Compatible with various water types, it supports applications ranging from aquaculture tanks to wastewater treatment facilities.

FAQs of DISSOLVED OXYGEN METER (HANDHELD) 831 :

Q: How do I calibrate the Handheld Dissolved Oxygen Meter 831?

A: You can perform either single or multi-point calibration for the 831 DO Meter. Follow the on-screen prompts and use the supplied calibration solution. The devices buzzer alarm and display will confirm completion. This ensures measurement accuracy before conducting tests.

Q: What is the process for replacing the DO electrode probe?

A: Replacing the DO electrode probe is simple and tool-free. Just disconnect the BNC connector, remove the old probe, and attach the new one. This design minimizes downtime and requires no technical expertise.

Q: When should I use the data hold function?

A: The data hold function is helpful when you need to freeze and review a specific measurement value on the screen. Use it during site visits or whenever conditions may change quickly, ensuring accurate documentation of your test results.

Q: Where can the DO meter be applied effectively?

A: The 831 meter is excellent for wastewater testing, aquaculture monitoring, drinking water quality analysis, and general environmental monitoring, delivering consistent results in both field and laboratory settings.

Q: What are the benefits of auto temperature compensation and salinity correction?

A: Auto temperature compensation and salinity correction allow the meter to automatically adjust readings according to current water temperature and salinity. This improves measurement precision across varying conditions without manual recalculations.

Q: How does the LCD backlight function enhance field usage?

A: The 2.5-inch backlit LCD provides clear, easy-to-read data even in low-light or outdoor environments, supporting fieldwork in early mornings, evenings, or poorly-lit facilities.