Panel-mount type galvanic residual chlorine meter
Ideal for measuring the concentration of free residual chlorine in tap water, swimming pools, spa water, and similar environments. Residual chlorine concentration can be easily measured without the need for reagents.
The sensor can be used for an extended period of time
The sensor unit can regenerate the cathode electrode, allowing for long-term sensor usage.
| 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 |
| 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) | |
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