Description
Overview
GAOTek The handheld device 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: RS-485. 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/L to 20 mg/L or 0 ≤200% saturation |
| Response time | 3 min |
| Precision | ±1% |
| Sensor drift | <1% per year |
| Temperature range | 32 °F to 122 °F (0 ℃ to 50 ℃) |
| Temperature precision | 32.9 °F (±0.5 ℃) |
| Calibration method | One or Two-point calibration |
| output method | RS-485 (Modbus/Â RTU) |
| Temperature sensor | NTC |
| Housing diameter | 0.86 in (22 mm) |
| Housing length | 188.3 |
| Cable length | 393.7 in (10000 mm), 196. in (5000 mm), 590.5 in (15000 mm) and 1181.4 in (30000 mm) cables. |
| Power consumption | <0.5Â W |
| power supply | DC 6 v to 12 v +/-5%, current<50 mA |
| Protection level | IP 68 |
| Housing Material | POM |
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