Description
Overview
GAOTek portable dissolved oxygen tester adopts the internationally leading fluorescence lifetime technology, which is based on the quenching principle of active fluorescence by specific substances in physics. The significant advantage of this fluorescence method for measuring dissolved oxygen is that there is no oxygen consumption during the measurement process, so there is no flow rate limitation, and there is no need for preheating, no electrolyte, maintenance and frequent calibration, and the response time of this instrument is even lower 30 seconds, making dissolved oxygen measurement more accurate, stable, faster, and more convenient.
Technical Specifications
Dissolved oxygen measuring range | 0.0 mg / L to 20.0 mg / L or 0% to 200% air Sat. |
Measurement accuracy | 0% to 200%: ±1% |
Probe size | Õ“ 16 mm x 180 mm |
Dissolved oxygen error | ±0.3 mg / L |
Temperature accuracy | ±32.36 °F (0.2 °C) |
Temperature error | ±33.8 °F (1 °C) |
Residual current | Not more than 0.15 mg / L |
Response time | Not more than 30 s (90% response at 68 °F / 20 °C) |
Sensor drift | <1% per year |
Calibration | 1-point or 2-point calibration |
Power supply | Four No. 7 alkaline batteries |
Dissolved oxygen temperature range | 32 °F to 104 °F (0 °C to 40 °C) |
Working temperature range | 32 °F to 122 °F (0 °C to 50 °C) |
Storage temperature range | -40 °F to 185 °F (-40 °C to 85 °C) |
Overall dimension | 7.08 in x 3.14 in x 1.18 in (180 mm x 80 mm x 30 mm) |
Minimum bending radius of cable | 0.59 in (15 mm) |
Probe weight | 0.11 lb (51 g) |
Weight | 1.01 lb (460 g) |