Description
Overview
GAOTek aquarium dissolved oxygen sensor meter portable dissolved oxygen pH meter water oxygen tester – protection level ip68 can be used for monitoring of dissolved oxygen, temperature and PH in water, and can meet the requirements of portable accurate water quality measurement. Signal output: RS485. The screen uses a custom backlight, which can display dissolved oxygen, temperature, PH, real time clock. Manual calibration of salinity, air pressure and KB value to ensure accurate measurement value.
Features
- 0 mg/L to 20 mg/L or 0% to 200% saturation
- 32 °F to 122 °F (0 °C to 50 °C); IP68 protection level
- No film, no electrolyte, no polarization
- No need to consume oxygen, no flow rate
- Built-in temperature sensor, automatic temperature compensation
- Free from chemical interferences such as sulfides
- Small annual drift, fast response, and more accurate measurement
- Free of maintenance, longer application cycle and lower cost of use
- Fluor cap replacement is simple
- Support RS-485, MODBUS protocol
Technical Specification
| Measuring Range | 0 mg per L to 20 mg per L or 0 ≤ 200 % saturation |
| Response time | 3 min |
| Precision | ± 1 % |
| Sensor drift | < 1 % per year |
| Calibration method | One or Two-point calibration |
| output method | RS485 (Modbus RTU) |
| Temperature sensor | NTC |
| Power consumption | < 0.5Â W |
| power supply | DC 6 v to 12 v +/-5 %, current < 50 mA |
| Protection level | IP68 |
| Temperature range | 32 °F to 122 °F (0 ℃ to 50 ℃) |
| Temperature precision | 32.9 °F (± 0.5 ℃) |
| Housing diameter | 0.86 in (2.2 cm) |
| Housing length | 7.41 in (18.83 cm) |
| Cable length | 393.7 in (1000 cm), 196. in (500 cm), 590.5 in (1500 cm) and 1181.4 in (3000 cm) cables |
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