SX736 Portable pH/EC/TDS/Salinity/Resistivity/DO Meter
Apera Instruments SX736 Portable pH/EC/TDS/Salinity/Resistivity/DO Meter, measuring (-2.00 to 19.99) pH. Runs on 2 AA batteries (1.5V ×2).
| Measuring Range | (-2.00 to 19.99) pH; Conductivity: (0.00 to 19.99) μS/cm, (20.0 to 199.9) μS/cm (200 to 1999) μS/cm, (2.00 to 19.99) mS/cm (20.0 to 199.9) mS/cm TDS: (0 to 100) g/L; Salinity: (0 to 100) ppt Resistivity: (0 to 100) MΩ·cm |
|---|---|
| Resolution | 0.1/0.01 mg/L (ppm); 1/0.1 %; 0.1/0.01 pH; 0.01/0.1/1 μS/cm; 0.01/0.1 mS/cm |
| Accuracy | ±0.30 mg/L (ppm), incl. Electrode error; Instrument: ±0.01 pH; Total: ±0.02 pH; Device: ±1.0 F.S, Total: ±1.5% F.S |
| Response Time | ≤ 30s (90% response at 25°C) |
| Air Pressure Compensation | (66 to 200) kPa (manual) |
| Automatic Calibration | Air saturated with water; water saturated with air |
| Data Storage | 400 data sets |
| Dimensions & Weight | Meter: (65×120×31) mm/180 g Complete set: (255×210×50) mm/1760 g |
| Electrode Constant | 0.1 / 1 / 10 cm-1 |
| Electrode Type | Polarographic |
| Input Current | ≤2×10-12 A |
| Input Impedance | ≥1×1012Ω |
| IP Rating | IP57 |
| Memory Values | Serial number, measured value, measuring unit and temperature |
| Quality and safety certification | CE, ISO 9001:2015 |
| Reference Temperature | 25°C, 20°C, and 18°C |
| Salinity compensation range | (0 to 45) ppt (automatic) |
| Stability | ±0.01 pH/3h |
| Temperature Compensation | (0 to 100) °C (automatic); (0 to 50) °C (automatic); (0 to 45) °C (automatic) |
| Power Supply | 2 AA batteries (1.5V x2) |
| Manufacturer | Apera Instruments |
| MPN | AI468 |
| Item number | AI468 |
The Apera Instruments SX736 is a versatile, portable meter designed for laboratory-quality measurements of pH, conductivity (EC), TDS, salinity, resistivity, and dissolved oxygen (DO) in all general water solutions. Its IP57-rated dust and water resistance and rugged design make it perfect for field use, even in harsh environments. The integrated memory function allows for storage and retrieval of 400 data sets.
The SX736 features high-performance electrodes like the 201T-S pH/Temp. electrode, which ensures fast and precise pH measurements with its lithium glass membrane and ceramic diaphragm. The 2301T-S BPB conductivity/temp. electrode is based on Brush-resistant Platinum Black (BPB) technology, providing precise measurements across a wide range (0-200 mS/cm). Both electrodes also support automatic temperature compensation (ATC) for accurate readings.
For DO measurements, the DO500 polarographic DO electrode is included, with 5-minute polarization and a response of 90% within 30 seconds. The meter is capable of precise, automatic temperature, salinity, and manual air pressure compensation for optimal results.
Key Features
- Multi-parameter measurement – pH, conductivity (EC), TDS, salinity, resistivity, dissolved oxygen (DO)
- Fast and reliable results – Digital filter technology enhances response time and accuracy
- Memory storage – Stores up to 400 data sets for easy retrieval
- Field-ready design – IP57-rated dust and water resistance for harsh environments
- Quick and easy calibration – 1-3 point pH calibration and 1-point EC calibration
- Replaceable DO membrane cap – Includes 3 replacement membrane caps and matching refill solution
- Fast DO polarization – Only 5 minutes required for full polarization
- 3-year manufacturer’s warranty (6 months for electrodes)
Complete Set Includes
SX736 portable meter for pH, EC, TDS, salinity, resistivity, DO
201T-S pH/Temp. electrode
2301T-S conductivity/temp. electrode
DO500 polarographic DO electrode
Calibration solutions: pH 4.00, pH 7.00, pH 10.01 (50 ml each)
1413 μS Conductivity calibration solution
DO502 electrolyte solution for refilling
3x DO503 membrane caps
Polishing paper for electrode cleaning
Manual
2x AA batteries
Screwdriver
Robust carrying case
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