Basic Info.
After-sales Service
on-Line Support
Appliance
Food Analysis, Medical Research, Biochemistry, Water Analysis
Certification
ISO9001, CE
Items
Dissolved Oxygen/Conductivity
Do Range
0.00 to 20.00mg/L
Conductivity Range
0.01 to 20.00, 200.0, 2000us/Cm, 20.00, 200.0ms/Cm
Resolution
0.001, 0.01, 0.1pH, Selectable
Temperature
0 to 105 Degree
Application
Chemical Experiments, Routine Measurements
Transport Package
Cartoon
Specification
170*85*30mm
Product Description
1>Product IntroductionPortable Conductivity/Dissolved Oxygen Meter
High-performance multiparameter water quality meter contains the 5 measurement modes, the meter is suitable for measuring the conductivity, TDS, salinity, resistivity and dissolved oxygen.
2 >Functional characteristicsConductivity/TDS/Salinity/Resistivity Modes:
• Portable multiparameter water quality meter is equipped with a backlit LCD display.
• 1 to 5 points calibration with automatic recognition for conductivity standards.
• Selectable cell constant (K=0.1/1/10), reference temperature (20/25°C), TDS factor, linear
and pure water compensations, seawater and practical salinity measurement modes.
Dissolved Oxygen Mode:
• 1 or 2 points calibration using the air-saturated water or zero oxygen solution.
• Salinity and barometric pressure compensations eliminate the measurement error.
Other Features:
• Automatic temperature compensation ensures accurate readings over the entire range.
• Auto-Read function senses and locks the measurement endpoint.
• Calibration due alarm prompts user to calibrate the meter regularly.
• Auto-Power Off effectively conserves battery life.
• Setup menu allows setting the number of calibration points, stability criteria, temperature
unit, date and time, etc.
• Reset function automatically resumes all settings back to the factory defaults.3 >Technical Parameters Model | 904P |
Conductivity | |
Range | 0.01 to 20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm |
Resolution | 0.001, 0.01, 0.1, 1 |
Accuracy | ±0.5% F.S. |
Calibration Points | 1 to 5 points |
Calibration Solutions | 10µS, 84µS, 1413µS, 12.88mS, 111.8mS |
Temperature Coefficient | Linear (0.0 to 10.0%/°C), pure water |
Reference Temperature | 20/25°C |
Cell Constant | K=0.1, 1, 10 or custom |
TDS | |
Range | 0.00 to 10.00, 100.0, 1000ppm, 10.00, 200.0ppt |
Resolution | 0.01, 0.1, 1 |
Accuracy | ±1% F.S. |
TDS Factor | 0.1 to 1.0 (default 0.5) |
Salinity | |
Range | 0.00 to 80.00ppt, 0.00 to 42.00psu |
Resolution | 0.01 |
Accuracy | ±1% F.S. |
Resistivity | |
Range | 0.00 to 20.00MΩ |
Resolution | 0.01 |
Accuracy | ±1% F.S. |
Dissolved Oxygen | |
DO Range | 0.00 to 20.00mg/L |
Resolution | 0.01, 0.1mg/L, selectable |
Accuracy | ±0.2mg/L |
% Saturation of Oxygen | 0.0 to 200.0% |
Resolution | 0.1, 1%, selectable |
Accuracy | ±2.0% |
Calibration Points | 1 or 2 points |
Pressure Correction | 60.0 to 112.5kPa/450 to 850mmHg, manual |
Salinity Correction | 0.0 to 50.0g/L, manual |
Temperature | |
Range | 0 to 105°C/32 to 221°F |
Resolution | 0.1°C/0.1°F |
Accuracy | ±0.5°C/±0.9°F |
Offset Calibration | 1 point |
Calibration Range | Reading ±10°C |
General Specifications | |
Temperature Compensation | 0 to 100°C/32 to 212°F, manual or automatic |
Stability Criteria | Low or high |
Calibration Due Alarm | 1 to 31 days or off |
Auto-Power Off | 10, 20 or 30 minutes after last key pressed |
Memory | Stores up to 500 data sets |
Output | USB communication interface |
Connector | 6-pin nimi-DIN, 3.5mm jack socket |
Display | Custom LCD (80×60mm) |
Power | 3×1.5V AA batteries or DC5V power adapter |
Battery Life | Approximately 150 hours (turn off the backlight) |
Dimensions | 170(L)×85(W)×30(H)mm |
Weight | 300g |
Company
Address:
Room 203, building 61, No. 421 Hongcao Road, Xuhui District, Shanghai
Business Type:
Trading Company
Business Range:
Chemicals, Industrial Equipment & Components, Instruments & Meters, Textile, Tools & Hardware
Company Introduction:
Lianhua Technology is a manufacturer of water quality analyzer in China with almost 40 years. The factory locates in Beijing. The product series include chemical oxygen demand (COD) analyzer, biochemical oxygen demand (BOD) analyzer, ammonia nitrogen (NH3-N) analyzer, total phosphorus (TP) analyzer, total nitrogen (TN) analyzer and multi-parameter analyzer. We also can provide pH/dissolved oxygen/conductivity meter and other laboratory instrument for you. We have professional R& D personnel and after-sales engineers, and can provide customers with one-stop procurement services for water quality testing equipment. These products have been widely used in the pharmaceutical, chemical, printing and dyeing and water treatment industries. And they are popular in Southeast Asia, Africa, America, Europe and Australia.
Among them, COD / ammonia nitrogen / total phosphorus / total nitrogen use spectrophotometry. We have built a standard curve in the instrument. As long as we use our reagent, we can quickly detect COD / ammonia nitrogen / total phosphorus / total nitrogen in water. The BOD instrument uses a mercury-free differential pressure method. The results are obtained after 1-5 days of cultivation. It is safe, reliable, and simple to operate.