SX751
Portable pH&ORP&Conductivity&DO Meter
Introduction
Specification
| Category | Product Name | Basic features and specifications |
| PH | Measuring range | （-2.00 ~ 19.99）pH |
| Resolution | 0.1/0.01 pH | |
| Accuracy | Meter:±0.01pH; Overall: ±0.02pH | |
| Input current | ≤2×10-12 A | |
| Input impendance | ≥1×1012 Ω | |
| Stability | ±0.01 pH/3h | |
| Temp. compensation range | （0 ~ 100）℃(automatic) | |
| ORP | Measuring range (mV/ORP/EH) | -1999mV ~ 0 ~ 1999mV |
| Resolution | 1mV | |
| Accuracy | Meter:±0.1% FS, Overall: ±15mV | |
| Conductivity | Measuring range |
Conductivity：（0.00~19.99）μS/cm （20.0~199.9）μS/cm （200~1999）μS/cm （2.00~19.99）mS/cm （20.0~199.9）mS/cm TDS: （0 ~ 100）g/L Salinity： （0 ~ 100）ppt Resistivity：（0 ~ 100）MΩ·cm |
| Resolution | 0.01/0.1/1μS/cm 0.01/0.1 mS/cm | |
| Accuracy | Meter:±1.0% FS, Overall:±1.5% FS | |
| Temp. compensation range | （0 ~ 50）℃(manual) | |
| Electrode constant | 0.1 / 1 / 10 cm-1 | |
| Benchmark temperature | 25℃、20℃ and 18℃ | |
| Dissolved Oxygen | Measuring range | （0 ~ 40.00）mg/L(ppm) （0 ~ 200.0）% |
| Resolution | 0.1/0.01 mg/L(ppm) 1/0.1 % | |
| Accuracy | Meter:±0.10 mg/L, Overall:±0.40 mg/L | |
| Response time | ≤30 s（25℃, 90%response） | |
| Residual current | ≤0.1 mg/L | |
| Temp. compensation range | （0 ~ 45）℃(automatic) | |
| Salinity compensation range | （0 ~ 45）ppt(automatic) | |
|
Atmospheric pressure compensation range |
（66 ~ 200）kPa (manual) | |
| Automatic calibration |
Air saturated by water; water saturated by air |
|
| Electrode type | Polarogram type | |
|
Other Technical Parameters |
Data storage | 200 groups |
| Storage content |
Series number, measuring value measuring unit and temperature, |
|
| Power | Two AA batteries (1.5V x2) | |
| Size and weight |
meter：(65×120×31)mm/180g； Suitcase： (360×270×76)mm/1.6Kg |
|
| Quality and safety certification | ISO9001:2000, CE and CMC | |
| Working Condition | Environment temperature | 5 ~ 35 ℃（0.01grade） |
| Environmental humidity | ≤85% | |
| IP rating | IP57 Dustproof and waterproof |
Standard Kit Includes
| 1. Model SX751 pH/ORP/Conductivity/DO meter | 1unit |
| 2. 201T-S plastic pH/ATC three-in-one combination electrode | 1pc |
| 3. 301Pt-S plastic ORP combination electrode | 1pc |
| 4. 2301-S plastic conductivity electrode | 1支 |
| 5. DO500 DO electrode | 1pc |
| 6. pH standard buffer solution(pH4.00, pH7.00 and pH10.01/50mL) | 1btl/each |
| 7. 1413μS/cm conductivity standard solution (50mL) | 1bottle |
| 8. DO503 membrane cap (DO electrode use) | 1bottle |
| 9.DO502 DO electrode inner solution (30mL) | 2pcs |
| 10. Cathode polishing paper | 1pcs |
| 11. Screw driver | 1pcs |
| 12. Spare AA batteries | 2pcs |
| 13. Operation manual | 1pcs |
| 14. Carrying case | 1pcs |
Optional Accessories
| Accessory Category | Description | Specifications |
| pH combination electrode |
201T-S plastic three-in-one pH electrode |
Measure pH and temperature simultaneously, ATC, suited for general pH measurement, 8 pin conncetor. |
| 2503DT-S glass three-in-one combintion pH electrode |
ATC, suited for pH measurement of solution under low temperature and pure water, 8 pin connector. |
|
| Glass flow cell | Match 2503DT-S electrode. | |
| ORP combination electrode |
301Pt-S Plastic ORP combination electrode |
class="tdbg01" |
|
Suited for general ORP measurement, 8 pin connector. |
||
| Conductivity electrode |
2301-S Plastic conductivity electrode |
K=1.0 cm-1，ATC, suited for conductivity measurement of general water solution, 8 pin connector. |
|
DJS-0.1-S Glass conductivity electrode |
K=0.1cm-1，ATC, suited for pH measurement of of high purity water, 8 pin connector. |
|
| Glass flow cell | Match DJS-0.1-S electrode. | |
| DO electrode | DO500 DO electrode |
Polargrafic DO electrode, suited for application in lab and field, 8 pin connector. |
| DO electrode accessory |
DO503 DO electrode membrane cap |
Combined membrane cap, special for DO500 DO electrode, specification: 3 units per group. |
| DO502 DO electrode electrolyte |
Supplement electrolyte, special for DO500 DO electrode, specification: 30mL/bottle. |
|
|
DO501 negative electrode polishing paper |
Polishing paper，special for cleaning negative electrode of DO500 DO electrode, specification:2 pcs/group. |
|
| pH buffer | pH4.00 buffer | 500mL/250mL/50mL（bottle） |
| pH6.86 buffer | 500mL/250mL/50mL（bottle） | |
| pH9.18 buffer | 500mL/250mL/50mL（bottle） | |
| pH7.00 buffer | 500mL/250mL/50mL（bottle） | |
| pH10.01 buffer | 500mL/250mL/50mL（bottle） | |
| Conductivity standard | 84 μS/cm conductivity standard | 500mL/250mL/50mL（bottle） |
| 1413 μS/cm conductivity standard | 500mL/250mL/50mL（bottle） | |
| 12.88 mS/cm conductivity standard | 500mL/250mL/50mL（bottle） | |
| 146.6 μS/cm conductivity standard | 500mL/250mL/50mL（bottle） | |
| 1408 μS/cm conductivity standard | 500mL/250mL/50mL（bottle） | |
| 12.85 mS/cm conductivity standard | 500mL/250mL/50mL（bottle） | |
|
Electrode soaking solution |
pH（ORP）combination electrode soaking solution |
500mL/250mL/50mL（bottle） |
| ORP standard solution | 222 mV ORP standard solution | 250mL/100mL/50mL（bottle） |
| Portable case | Small portable case（255×210×50）mm | Match single electrode. |
| Big portable case（360×270×76）mm | Match multi- electrode |
