HD-300

現場安裝式溶氧計(DO計)

用於廢水處理和生產過程的控制和管理。

非常適合廢水處理廠和工業廢水處理設施等設施中曝氣池的管理。具有低成本膜帽更換系統和含有 KCl(氯化鉀)的安全內部液體。

DO

產品分類: Process Water
製造商: HORIBA Advanced Techno Co., Ltd.

Low-cost sensor replacement

For sensor replacement, only the membrane cap needs to be replaced, making it more cost-effective compared to replacing the sensor chip.

Safe inner liquid

Utilizing a safe KCl solution as the inner liquids.

Product nameDissolved oxygen meter
ModelHD-300
Combined sensor5505, 5510 (A bipolar diaphragm type polarography sensor)
Combined probeDO-1100
Measurement
range
Dissolved oxygen
concentration
0 mg/L to 20 mg/L (Display range: 0 mg/L to 22 mg/L)
Saturation degree0% to 200% (Display range: 0% to 200%)
Temperature0℃ to 50℃ (Display range: -10℃ to 110℃)
Display
resolution
Dissolved oxygen
concentration
0.01 mg/L
Saturation degree1%
Temperature0.1℃
PerformanceDissolved
oxygen
concentration
RepeatabilityWithin ±0.5% of the full scale (response for equivalent input)
LinearityWithin ±0.5% of the full scale (response for equivalent input)
TemperatureRepeatability±0.5℃ (response for equivalent input)
Linearity±0.5℃ (response for equivalent input)
Transmission
output
Output type4 mA to 20 mA DC: input/output isolated type
Load resistanceMaximum: 600 Ω(when power supply voltage is 24 V DC) (*1)
LinearityWithin ±0.08 mA (output only)
RepeatabilityWithin ±0.02 mA (output only)
Output rangeDissolved oxygen concentration: Selection from preset ranges or free range input within measuring range.
Occasional out for errorHold or burnout to either 3.8 mA or 21 mA
Transmission holdIn 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 inputNumber of input points1
Contact typeNo-voltage a-contact
ConditionsON resistance: 40 Ω maximum.
Open voltage: 1.2 V DC
Short-circuit current: 21 mA DC
Contact functionExternal 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 calibration1 point calibration comparing to reference thermometer
CalibrationCalibration methodSpan calibration in the air or DO saturated aquaous solution
Number of calibration pointsAtmospheric calibration: 1 point
(Zero electric calibration is carried out automatically)
Saturation liquid calibration: 2 points (zero calibration is omitted)
Additional capabilitiesSalinity 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-checkCalibration errorZero calibration error, sensitivity error, outside of temperature calibration range
Electrode diagnostic errorSensor error (damage to diaphragm), disconnection of sensor (or damage to sealing), temperature sensor short-circuit, and electric discontinuity of temperature sensor
meter errorCPU error, CPU error, ADC error, memory error
Operating temperature range-20℃ to 60℃ (without freeze)
Operating humidity rangeRelative humidity: 5% to 90% (without condensation)
Storage temperature-25℃ to 65℃
Power supplyRated voltage24 V DC (operating voltage range: 21 V to 32 V DC)*1
Power consumption0.6 W max.
Compatible
standards
CE markingEMC  :EN61326-1
     Class A, Industrial electromagnetic environment
RoHS  :EN50581
     9. Industrial monitoring and control instruments
FCC rulesPart15 Class A
StructureInstallationOutdoor installation type
Installation methodAttached to 50A pole or wall
Protection codeIP65
Case materialAluminum alloy (coated with epoxy-denatured melamine resin)
Material of fittingsSUS304
Material of hoodSUS304 (Epoxy degenerated melamine resin painting)
Material of windowPolycarbonate
Display elementReflective monochrome LCD
External dimensions180 (W) × 155 (H) × 115 (D) mm (excluding mounting brackets)
MassMain 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.

留言諮詢

如您有任何疑問,请在此留下詳細需求或問題,我們將竭誠您服務。

* 這些欄位為必填項目。

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