HD-480

Panel-mount Type Dissolved Oxygen Meter (Four-Wire Transmission, Membrane Type)

The HD-480 industrial dissolved oxygen meter takes sequential measurements of the concentration of dissolved oxygen, which is an indicator used in the management of activated sludge tanks in waste water processing, and the quality of the water in boilers, or rivers and waterways.
As there is no need to exchange the membrane of the disposable sensor included, it is easy for anyone to use.

Measuring range

Dissolived oxygen: 0 - 20 mg/L
Saturation: 0 - 200 %
Temperature: 0 - 40 ℃

Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.
  • Exchanging the sensor is a one-touch operation
    The sensor is disposable, and can be exchanged with the touch of a key.
    There is no need for work requiring long experience or expertise, such as exchanging the membrane or refilling the internal fluid, as generally required by other sensors until now.
  • Two types of span correction
    You can choose from two types of span correction: the commonly used saturated fluid correction, and the plain and simple atmospheric correction.
  • Salt adjustment function
    A function which automatically corrects the data based on the salt concentration of the measurement sample has been included.
    This means it can make precise measurements in both freshwater and seawater.
  • Uses lead-free solder
    To reduce the burden on the environment, lead-free solder has been used to mount the components on the printed circuit board.

 

 

 Product name Dissolved oxygen meter
Model  HD-480
Measurement methodGalvanic cell method
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
 
RepeatabilityWithin ±0.5% of the full scale (by equivalent input)
LinearityWithin ±0.5% of the full scale (by equivalent input)
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
 
Contact outputOutputs: 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”
Calibration function 
  • Air calibration and solution calibration
  • Salinity compensation (0.0% to 5.0%)
  • Temperature calibration (two points)
 
Transmission output hold featureSelectable from previous value hold, optional value hold or continuous (however,only the previous value hold is available in the maintenance mode)
Self-diagnosis function 
  • Calibration failure: Zero error and sensitivity error
  • Sensor diagnosis: Short-circuit or disconnection of temperature sensor
  • Measuring range error
  • Product error
 
Temperature-compensated range0℃ to 40℃
Ambient temperature−5℃ to 45℃
Relative humidity20% to 85% (without dew condensation)
Storage temperature−25℃ to 65℃
Power supplyRated voltage 100 V to 240 V AC, 50/60 Hz, 10 VA (max.)
StructureIndoor-use panel installation type
  Panel case: ABS, Terminal: PBT
Panel: IP65 dust and water proof structure
Protective structurePanel: IP65 (IEC60529, JIS C0920)
Rear case: IP20, Terminal:IP00
Class II device (IEC61010-1)
Pollution level 2 (IEC61010-1)
Compatible
standards
CE markingEMC :EN61326-1
    Class A, Industrial electromagnetic environment
Safety :EN61010-1
RoHS  :EN50581
    9. Industrial monitoring and control instruments
FCC rulesPart15 Class A
External dimensions48 (W) mm × 96 (H) mm × 115 (D) mm
Case depth: approx. 105 mm
MassApprox. 400 g
Compatible sensorsProbeDP-100Operating temperature: 0℃ to 45℃

Sensor

5400, 5405

 

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