|ZD-2 Automatic Potential Titration Meter|
1. It can control titration endpoint according to preset potential.
2. It can pre-control potential adjustment.
3. It adopts solenoid valve for controlling dropping liquid.
4. It has manual, automatic and constant pH (potential) titration modes.
5. It is equipped with delay circuit of titration endpoint.
6. It is suitable for potential titration for laboratory volumetric analysis.
7. It is equipped with JB-1A stirrer.
1. Measuring range: pH: (0.00~14.00)pH, mV:(-1400~1400)mV
2. Resolution: pH: 0.01pH; mV: 1mV
3. Accuracy: pH:±0.03pH±1 bit; mV:±0.35%FS
5. Input impedance>=3 x 1011Ω
6. Power: AC (220±22)V, (50±1) Hz
7. Dimension (mm): 300 x 235 x 100
8. Net Weight: 3kg
9. Package Size: 490X410X300mm; Gross Weight: 4kg
|Chemical Oxygen Demand Tester (COD) COD-571|
1. English language menu and LCD display for easy use
2. It adopts dichromate colorimetric method
3. Direct reading of COD results and no need to analyze by other means such as titration
4. 2 point calibration (zero COD and full scale calibration)
5. Measuring results can be viewed, deleted and printed. Up to 200 sets of measuring data can be stored and it can be connected with printer
6. It adopts digestion method of sealing reflux and can conduct simultaneous digestion of 21 samples for low energy consumption
7. The digestion temperature can be adjusted from ambient temperature to 165ºC. Also, it is equipped with over temperature alarming system
8. The digestion time can be set from 0 to 120 min. It will be power off after response.
1. Measuring range COD: 0~1500mg/L
2. Accuracy: <150.0 mg/L: ±8%FS±1mg/L; 150.0mg/L~1500mg/L: ±8% reading
3. Stability: 2% reading/15min
4. Repeated error: 3% reading
5. Power supply: AC220±22V; 50±1Hz