HR-480

잔류 염소 측정기 (4-Wire Transmission)

산업용 잔류 염소 측정기는 음용수 및 수영장의 항균성 검사에 사용되는 지표인 유리 잔류 염소를 순차적으로 측정합니다.
결합된 센서(RS-1)는 구동부가 없는 갈바닉 방식을 사용하여 유지보수가 편리하고 장기간에 걸쳐 안정적인 측정이 가능합니다.

측정 범위

유리 잔류 염소 농도 : 0 ~ 2 mg/L

Segment: Process And Environmental

Division: Process Water

Manufacturing Company: HORIBA Advanced Techno Co., Ltd.

Ideal for managing water quality, for example of drinking water or swimming pools The HR-480 takes sequential measurements of free residual chlorine, which is an indicator used in the inspection of the anti-bacterial properties of drinking water and swimming pools.
Uses a galvanic cell method The galvanic cell method makes the sensors more maintainable than the polarographic method, meaning that there is no need to polish the sensors, allowing them to be used semi-permanently.
Can be installed on the same cell as pH electrodes, ORP electrodes and temperature sensors (Option: Sampling Rack SS-2, SS-3) As well as residual chlorine sensors, pH, ORP electrodes and temperature sensors can also be installed on the same cell, making it possible to construct a low-cost system.
Span correction is possible when measuring fluids with low concentrations Correction work can be carried out easily on-site, with no need to prepare a separate high-concentration correction fluid.
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	Industrial Residual Chlorine Meter
Model	HR-480
Measurement method	Galvanic cell method
Measuring range	0 to 2 mg/L	0.01 mg/L resolution (number of decimal places selectable between 1 and 2)
Repeatability	Within ±0.05 mg/L (with equivalent input)
Linearity	Within ±0.05 mg/L (with equivalent input)
Transmission output	4 mA to 20 mA DC, input/output isolated type Maximum load resistance 900 Ω Transmission output range: freely selectable within the measurement range.
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/lower limit operation (ON/OFF control), alarm, and maintenance.
Calibration function	Zero calibration (zero adjustment omissible) Span calibration (calibration by compariing with DPD tester)
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 Zero error Sensitivity error Outside of the measuring range Converter error
Ambient temperature	−5℃ to 45℃
Relative humidity	20% to 85% (without dew condensation)
Storage temperature	−25℃ to 65℃
Power supply	Rated voltage 100 V AC to 240 V AC, 50/60 Hz, 10 VA (max)
Structure	Indoor-use panel installation type Panel case: ABS, Terminal: PBT Panel: IP65 dust and water proof structure
Protective structure	Panel: IP65 (IEC60529, JIS C0920) Rear case: IP20 Terminal: IP00 Class II device (IEC61010-1) Pollution level 2 (IEC61010-1)
Conforming standards	CE Marking	EMC Directive: EN61326-1 Low Voltage Directive: EN61010-1
Conforming standards	FCC Rule	FCC Part15
External dimensions	48 (W) mm × 96 (H) mm × 115 (D) mm Case depth: approx. 105 mm
Mass	Approx. 400 g
Compatible sensor	RS-1
Measuring target	Free residual chlorine
Water sample requirements	pH6 to pH8 (constant) Temperature 0℃ to 40℃ (constant)