+ 
2.1. pH:
|
Measuring range |
(-1.999 to 19.999) pH |
|
Resolution |
0.1/0.01/0.001 pH |
|
Accuracy |
Meter:±0.002 pH, connect meter with electrode:±0.01pH |
|
Input current |
≤1×10-12 A |
|
Input impendance |
≥3×1012 Ω |
|
Stability |
±0.002 pH/3h |
Temp. compensation range |
(0 to 100) ℃（automatic or manual） |
2.2. mV:
|
Measuring range (mV/ORP/EH) |
-1999.9 mV to 0 to 1999.9mV |
|
Resolution |
0.1mV |
|
Accuracy |
±0.03% FS |
2.3. Ion Concentration:
|
Measuring range |
0.00 to 14.00pX |
|
Display unit |
pX, mol/L, mg/L, ppm |
|
Accuracy |
Meter:±0.5 % reading(monovalent), ±1.0 % reading (bivalent) |
Temp. compensation range |
0 to 60 ℃（automatic or manual） |
2.4. Conductivity
Measuring range |
Conductivity: (0.00 to 20.00)μS/cm (20.0 to 200.0)μS/cm (200 to 2000)μS/cm (2.00 to 20.00) mS/cm (20.0 to 200.0) mS/cm (200 to 2000) mS/cm（K=10） Resistivity:(0 to 100) MΩ·cm TDS: (0 to 100) g/L Salinity : (0 to 100) ppt |
|
Resolution |
0.01/0.1/1μS/cm 0.01/0.1/1 mS/cm |
Accuracy |
Meter:±0.5% FS,connect meter with electrode:±0.80% FS |
|
Temp. compensation range |
(0 to 50) ℃（automatic） |
|
Electrode constant |
0.01 / 0.1 / 1 / 10 /100 cm-1 |
|
Reference temperature |
25℃, 20℃and 18℃ |
2.5. Dissolved Oxygen:
|
Measuring range |
(0 to 20.00) mg/L(ppm) (0 to 200.0) % |
|
Resolution |
0.1/0.01 mg/L(ppm) 1/0.1% |
|
Accuracy |
Meter:±0.10 mg/L, connect meter with electrode:±0.40 mg/L |
|
Response time |
≤30 s (25℃, 90% response) |
Residual current |
≤0.1 mg/L |
Temp. compensation range |
(0 to 45) ℃（automatic） |
Salinity compensation range |
(0 to 45) ppt（automatic） |
|
Air pressure compensation range |
(80 to 105) kPa（automatic） |
|
Automatic calibration |
Air saturated by water; water saturated by air |
|
Electrode type |
Polarogram type |
2.6. Temperature:
|
Measuring range |
-10℃to 110℃ |
|
Resolution |
0.1℃ |
|
Accuracy |
5 to 60℃ range: ±0.4℃ other range: ±0.8℃ |
2.7. Other Technical Parameters:
|
Data storage |
300 groups |
|
Storage content |
Measuring value series number, measuring value, temperature, ATC or MTC state, measuring date and time |
|
Power |
DC9V/300mA |
|
Communication connector |
RS-232 |
|
Size and weight |
160 x 190 x 70mm/880g |
Quality and safety certification |
ISO9001:2000, CE and CMC |
2.8. Working Condition:
|
Environment temperature |
5 to 35 ℃（0.01 grade） 15 to 30 ℃（0.001 grade） |
|
Environmental humidity |
≤75% |
|
IP rating |
IP54 Dustproof and waterproof |
Máy đo nồng độ ion đa chức năng MP551
Máy đo nồng độ ion đa chức năng MP551
Máy đo nồng độ ion đa chức năng MP551
