Product Introduction
Introduction
| ● Built-in microprocessor chips, intelligent functions such as automatic calibration, automatic temperature compensation, data storage, function set-up, self-diagnose information, automatic power-off and low voltage display. |
| ● Double-parameter meter, equipped with pH electrode and dissolved oxygen electrode, automatic identification of electrode by meter. |
| ● Automatic identification of 13 pH standard buffer solutions, three options of standard buffer solutions: Europe and America series, NIST series and China series. |
| ● Able to set pH measurement modes of high purity water and pure water with ammonia. |
| ● Measurement mode of Dissolved oxygen has the function of automatic temperature compensation, automatic salinity compensation and manual air pressure compensation. |
| ● New polarographic type dissolved oxygen electrode can measure temperature, salinity and dissolved oxygen simultaneously, equipped with special dissolved oxygen electode calibration set, polarization only for 3~5 min. |
| ● Meter meets IP57 waterproof rating, equipped with calibration solution and portable case. |
Specifications
| 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 | |
| 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 SX725 pH / mV / DO meter | 1set |
| 2. 201T-S plastic pH/ATC three-in-one combined electrode | 1pcs |
| 3. DO500 DO electrode | 1pcs |
| 4. pH standard buffer solution( pH4.00, pH7.00 and pH10.01/50mL) | 1btl/each |
| 5. DO503 membrane cap (DO electrode use) | 3个 |
| 6. DO502 DO electrode inner solution (30mL) | 1pcs |
| 7. Cathode polishing paper | 1pcs |
| 8. Screw driver | 1pcs |
| 9. Spare AA batteries | 2pcs |
| 10. Operation manual | 1pcs |
| 11. Carrying case | 1unit |
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