Product name | Dissolved oxygen meter |
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Model | HD-480 |
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Measurement method | Galvanic cell method |
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Measuring range | - Dissolved oxygen 0 mg/L to 20 mg/L, 0.01 mg/L resolution
- Saturation 0% to 200%, 1% resolution
- Temperature 0℃ to 40℃, 0.1℃ resolution
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Repeatability | Within ±0.5% of the full scale (by equivalent input) |
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Linearity | Within ±0.5% of the full scale (by equivalent input) |
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Transmission output | - 4 mA to 20 mA DC, input/output isolated type
- Max. load resistance: 900 Ω
- Transmission output range: Freely settable within the measuring range
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Contact output | Outputs: 2 points Alarm contact output (R1 and R2) Contact type: relay contact, SPDT (1c) Contact rating: 240 V AC, 3 A and 30 V DC, 3 A (resistance load) Contact function: Selectable from “Upper limit operation”, “lower limit operation” (ON/OFF control), “anomaly alarm”, “during maintenance”, and “temperature” |
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Calibration function | - Air calibration and solution calibration
- Salinity compensation (0.0% to 5.0%)
- Temperature calibration (two points)
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Transmission output hold feature | Selectable from previous value hold, optional value hold or continuous (however,only the previous value hold is available in the maintenance mode) |
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Self-diagnosis function | - Calibration failure: Zero error and sensitivity error
- Sensor diagnosis: Short-circuit or disconnection of temperature sensor
- Measuring range error
- Product error
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Temperature-compensated range | 0℃ to 40℃ |
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Ambient temperature | −5℃ to 45℃ |
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Relative humidity | 20% to 85% (without dew condensation) |
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Storage temperature | −25℃ to 65℃ |
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Power supply | Rated voltage 100 V to 240 V AC, 50/60 Hz, 10 VA (max.) |
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Structure | Indoor-use panel installation type Panel case: ABS, Terminal: PBT Panel: IP65 dust and water proof structure |
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Protective structure | Panel: IP65 (IEC60529, JIS C0920) Rear case: IP20, Terminal:IP00 Class II device (IEC61010-1) Pollution level 2 (IEC61010-1) |
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Compatible standards | CE marking | EMC :EN61326-1 Class A, Industrial electromagnetic environment Safety :EN61010-1 RoHS :EN50581 9. Industrial monitoring and control instruments |
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FCC rules | Part15 Class A |
External dimensions | 48 (W) mm × 96 (H) mm × 115 (D) mm Case depth: approx. 105 mm |
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Mass | Approx. 400 g |
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Compatible sensors | Probe | DP-100 | Operating temperature: 0℃ to 45℃ |
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Sensor | 5400, 5405 |