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H-1,4896 Details Brochure_English
HD-300
Field-installation Type Dissolved Oxygen Meter(Two-Wire Transmission, Membrane Type)
HD-300 connects the DO (Dissolved Oxygen) sensor (DO-1100) and measures the DO in the sample water.The measurement method is membrane type polarography method. It is suitable for monitoring DO in wastewater treatment or aquarium for aquaculture.
Measurement range
Dissolved oxygen concentration: 0 - 20 mg/L
Saturation degree: 0 - 200 %
Temperature: 0 - 50 ℃
Segment: Process And Environmental
Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.
Tough
- Responds to harsh conditions at the site process
Operating temperature range(Transmitter)：-20 - 60℃
Rated voltage: DC 24 V
Robust aluminum die cast (Protection code：IP65) - CE Marking and FCC Compliance suitable for use at overseas sites
Intelligence
- Self-diagnosis of membrane damage and infiltration into the probe
- Convenient function to display liquid temperature at the same time（Transmission output available）
- Designed to be environmentally friendly (Pb-free) in response to WEEE and RoHS
Easy maintenance
- Easy to view big display
- Easy operation
- Calibration log memory
- Screw terminals that do not fall off are used in the terminal block for wiring
- Span calibration by air preceded by auto-zeroing (Electrical auto zeroing function)
- On-site membrane replacement as well as whole sensor replacement
| Product name | Dissolved oxygen meter | ||
|---|---|---|---|
| Model | HD-300 | ||
| Combined sensor | 5505, 5510 (A bipolar diaphragm type polarography sensor) | ||
| Combined probe | DO-1100 | ||
| Measurement range | Dissolved oxygen concentration | 0 mg/L to 20 mg/L (Display range: 0 mg/L to 22 mg/L) | |
| Saturation degree | 0% to 200% (Display range: 0% to 200%) | ||
| Temperature | 0℃ to 50℃ (Display range: -10℃ to 110℃) | ||
| Display resolution | Dissolved oxygen concentration | 0.01 mg/L | |
| Saturation degree | 1% | ||
| Temperature | 0.1℃ | ||
| Performance | Dissolved oxygen concentration | Repeatability | Within ±0.5% of the full scale (response for equivalent input) |
| Linearity | Within ±0.5% of the full scale (response for equivalent input) | ||
| Temperature | Repeatability | ±0.5℃ (response for equivalent input) | |
| Linearity | ±0.5℃ (response for equivalent input) | ||
| Transmission output | Output type | 4 mA to 20 mA DC: input/output isolated type | |
| Load resistance | Maximum: 600 Ω(when power supply voltage is 24 V DC) (*1) | ||
| Linearity | Within ±0.08 mA (output only) | ||
| Repeatability | Within ±0.02 mA (output only) | ||
| Output range | Dissolved oxygen concentration: Selection from preset ranges or free range input within measuring range. | ||
| Occasional out for error | Hold or burnout to either 3.8 mA or 21 mA | ||
| Transmission hold | In the maintenance mode, transmission signal is held at the latest value or preset value. In the calibration mode, transmission signal can be alive or held. | ||
| Contact input | Number of input points | 1 | |
| Contact type | No-voltage a-contact | ||
| Conditions | ON resistance: 40 Ω maximum. Open voltage: 1.2 V DC Short-circuit current: 21 mA DC | ||
| Contact function | External input for transmission holding. | ||
| Temperature compensation | Applicable temperature element | Platinum resistor: 1 kΩ (0℃) (The temperature sensor is built into the probe DO-1000.) | |
| Temperature compensation range | 0℃ to 50℃ | ||
| Temperature calibration | 1 point calibration comparing to reference thermometer | ||
| Calibration | Calibration method | Span calibration in the air or DO saturated aquaous solution | |
| Number of calibration points | Atmospheric calibration: 1 point (Zero electric calibration is carried out automatically) Saturation liquid calibration: 2 points (zero calibration is omitted) | ||
| Additional capabilities | Salinity compensation (0.0% to 5.0%) Automatic detection of calibration failure (Zero error, Sensitivity error) Calibration history (Elapsed days from the last calibration which ever zero or span, zero shift, span sensitivity) | ||
| Self-check | Calibration error | Zero calibration error, sensitivity error, outside of temperature calibration range | |
| Electrode diagnostic error | Sensor error (damage to diaphragm), disconnection of sensor (or damage to sealing), temperature sensor short-circuit, and electric discontinuity of temperature sensor | ||
| meter error | CPU error, CPU error, ADC error, memory error | ||
| Operating temperature range | -20℃ to 60℃ (without freeze) | ||
| Operating humidity range | Relative humidity: 5% to 90% (without condensation) | ||
| Storage temperature | -25℃ to 65℃ | ||
| Power supply | Rated voltage | 24 V DC (operating voltage range: 21 V to 32 V DC)*1 | |
| Power consumption | 0.6 W max. | ||
| Compatible standards | CE marking | EMC :EN61326-1 Class A, Industrial electromagnetic environment RoHS :EN50581 9. Industrial monitoring and control instruments | |
| FCC rules | Part15 Class A | ||
| Structure | Installation | Outdoor installation type | |
| Installation method | Attached to 50A pole or wall | ||
| Protection code | IP65 | ||
| Case material | Aluminum alloy (coated with epoxy-denatured melamine resin) | ||
| Material of fittings | SUS304 | ||
| Material of hood | SUS304 (Epoxy degenerated melamine resin painting) | ||
| Material of window | Polycarbonate | ||
| Display element | Reflective monochrome LCD | ||
| External dimensions | 180 (W) × 155 (H) × 115 (D) mm (excluding mounting brackets) | ||
| Mass | Main body: Approx. 2.8 kg Cover and mounting brackets: Approx. 1 kg | ||
*1: The maximum load resistance that can be connected is decided depending on the power-supply voltage.
Relation between power supply voltage and load resistance
Note
An arrester (spark over voltage: 400 V) is implemented for transmission output, contact input, and communication. However, use a most suitable surge absorption element on the connection lines in accordance with the ambient environment, the situation of equipment installed, and the externally connected equipment.
