HP-480TP

패널 장착형 pH 미터(4-Wire Transmission, 산업용 시분할 비례제어)

HP-480은 pH 센서를 연결하여 시료수의 pH와 온도를 측정합니다. 다양한 생산 공정 및 폐수 처리 모니터링 및 제어에 적합하며, 다양한 유형의 전극을 샘플 특성에 맞게 사용할 수 있습니다.

HP-480TP는 일반적으로 ON-OFF 주파수가 고정되어 있는 일반적인 시간 공유 비례 제어 기능과 달리, pH 제어에 최적화된 독립적으로 개발된 제어 방법인 F Zone을 포함하고 있어 차이가 작아짐에 따라 주파수가 변화합니다.

측정 범위

pH : 0 ~ 14
온도 : 0 ~ 100 ℃

Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.
  • Time sharing proportional control function with F Zone
    Unlike commonly used time sharing proportional control functions, whose on-off frequency has generally been fixed, the HP-480TP includes an control method called F Zone, whereby as the pH difference becomes smaller, it changes not just the time for which the pump injecting pH regulator is on, but also its frequency.
  • Compatible with five types of temperature compensation elements
    Five types of temperature compensation element are supported: 500 Ω, 6.8 kΩ, 1 kΩ, 10 kΩ and 350 Ω.
  • Easy pH correction
    After immersing the pH electrodes in the standard fluid, simply follow the instructions displayed and press the ENT key.
    The automatic correction process is plain and simple.
  • A line-up of lead-free pH electrodes
    Uses lead-free glass. In addition, almost all sections of the pH electrodes, including lead wires and soldered junctions are lead-free.
  • 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 nameIndustrial pH meter
ModelHP-480TP
Measuring range0 pH to 14 pH: 0.01 pH resolution.
Temperature 0℃ to 100℃: 1℃ resolution (selectable display).
Transmission
output
4 mA to 20 mA DC, input/output isolated type
Maximum load resistance 900 Ω
Transmission
output range
Free
Repeatability and
linearity
±0.05 pH, ±0.08 mA (for transmission output range of 0 pH to 14 pH)
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/lower limit operation (ON/OFF control), alarm, and maintenance.
Control operations

ON/OFF control

  • Upper and lower limits setting range: 0.00 pH to 14.00 pH
  • Control width: 0.00 pH to 4.00 pH (±0.00 pH to ±2.00 pH)
    Time-division proportional control
  • Upper and lower limits setting range: 0.00 pH to 14.00 pH
  • Proportional band: 0.00 pH to 4.00 pH
  • Cycle time: 5 s to 300 s
  • Control output shift capability: 0% to 50% of shift volume for the cycle time
  • Self-extending cycle time capability: The cycle time is extended automatically when the deviation value enters a set range (F zone) in proportion to the deviation value (This feature has no effect when the shift function has been enabled).
  • F zone: 1% to 100% of the proportional band (Self-extension of the cycle time starts working when the deviation enters the above range).
  • Upper limit for extending the cycle time: 0 s to 300 s.
  • Maximum control volume: 50% to 100% (To be applied regardless of whether the measured value is in the proportional band or not).
Calibration function2 points automatic calibration or manual calibration.
2 points automatic calibration: with automatic validation of the electrode
characteristics.
  Types of standard solution: pH 2, pH 4, pH 7, pH 9 and pH 10 (JIS)
  Combination of standard solutions: pH 7 and one of the others
  Manual calibration: Freely selectable, but the difference should be over 2 pH.
Temperature calibration (one point).
Transmission
output hold feature
  • Previous value hold
  • Optional value hold
  • Continuous
    Selectable from the above (However, only the previous value hold is available in the maintenance mode).
Self-diagnosis
function
  • Calibration function
    Asymmetry potential error, sensitivity error, response speed error and standard solution error.
  • Electrode self-diagnosis
    Temperature sensor short-circuit and temperature sensor disconnection.
  • Outside of the measuring range.
  • Converter error.
Temperature
compensation
element

Selectable from compensation ON (350Ω (25℃), 500Ω (25℃),1 kΩ (0℃),6.8 kΩ (25℃) and 10 kΩ (25℃)) and compensation OFF.

Temperature
compensated
range
0℃ to 100℃
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, 50Hz/60 Hz, 10 VA (max.)
StructureIndoor-use panel installation type
Panel case: ABS, Terminal: PBT
Panel: water proof structure
Protective structurePanel: IP65 (IEC60529, JIS C0920)
Rear case: IP20, Terminal: IP00
Class II device (IEC61010-1)
Pollution level 2 (IEC61010-1)
Conforming
standards
CE
Marking
EMC Directives: EN61326-1
Low Voltage Directive: EN61010-1
RoHS Directive: EN50581
Immunity
(Industrial electromagnetic environment)
Noise increase ±0.2 pH or less
FCC RuleFCC Part15
External
dimensions
48 (W) mm × 96 (H) mm × 115 (D) mm
Case depth: approx. 105 mm
MassApprox. 400 g

제품 문의

HORIBA제품의 자세한 정보를 원하시면, 아래의 양식에 내용을 입력을 부탁드립니다.

* 는 필수입력항목입니다.

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