Panel-mount type galvanic residual chlorine meter

A compact water quality meter that offers a wide range of features and functionality.

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.

Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.

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 nameIndustrial Residual Chlorine Meter
Measurement methodGalvanic cell method
Measuring range0 to 2 mg/L0.01 mg/L resolution (number of decimal places selectable between 1 and 2)
RepeatabilityWithin ±0.05 mg/L (with equivalent input)
LinearityWithin ±0.05 mg/L (with equivalent input)
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 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.
Calibration functionZero calibration (zero adjustment omissible)
Span calibration (calibration by compariing with DPD tester)
output hold feature
Previous value hold
Optional value hold
Selectable from the above (However, only the previous value hold is available in the
maintenance mode.)
Calibration function
Zero error
Sensitivity error
Outside of the measuring range
Converter error
−5℃ to 45℃
Relative humidity20% to 85% (without dew condensation)
−25℃ to 65℃
Power supplyRated voltage 100 V AC 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)
CE MarkingEMC Directive: EN61326-1
Low Voltage Directive: EN61010-1
FCC RuleFCC Part15
48 (W) mm × 96 (H) mm × 115 (D) mm
Case depth: approx. 105 mm
MassApprox. 400 g
Compatible sensorRS-1
Measuring targetFree residual chlorine
Water sample
pH6 to pH8 (constant)
Temperature 0℃ to 40℃ (constant)

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