Quick and automatic measurement for boiler water, and trace amount of silica present in pure water.

Management of silica (SiO2) is paramount in preventing the formation of scales. This is because scales present in turbines will reduce the efficiency of power generation, especially for thermal power plants and nuclear power plants. By combining HORIBA's many years of track records and technological know-how, the silica analyzer has been reborn with conventional stability, reliability and maintainability.

Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.
  • ±2% F.S. repeatability with measurement time of 5 minutes
    Capable of obtaining high-speed, and highly repeatable measurement results.
  • Wide measurement range
    Measurement is possible from high sensitivity range of 0 to 10μg/L (ppb) to high concentration range of 0 to 5.0mg/L (ppm).
  • Self-diagnosis function
    Self-diagnosis of operation abnormalities such as water sample or reagent supply error, calibration error, light source error, and in-cell temperature error.
  • Automatic calibration function
    Zero calibration is performed automatically for each measurement. Span calibration can also be preset to perform at specific timings.
  • Automatic switching of measuring cycle
    Switching of measuring cycle automatically saves energy and reagents because measuring cycle is automatically shortened when the sample concentration exceeds the set concentration level, and automatically lengthened when the sample concentration goes below the set level.
  • Improved operability
    Equipped with color LCD touch panel.
General specificationProduct nameSilica analyzer
Dimensions600( W)×750( D)×1600( H) mm
MassApprox. 130kg
Power100V AC±10%, 50/60 Hz
Optional: AC 110V/115V/120V/220V/230V/240V±10% 50/60Hz
Power consumption500 VA
PerformanceMeasurement range0 to 10/0 to 100 μg/L
0 to 50/0 to 500 μg/L
0 to 100/0 to 1000 μg/L
0 to 200/0 to 2000 μg/L
0 to 0.50/0 to 5.00 mg/L
(Please specify when ordering)
Repeatability±2% of full scale
Measurement principleMolybdenum blue
Measurement point1 to 4 points (please specify when ordering)
Measuring time5 minutes
Measuring cycle5 to 999 minutes (selectable at control panel)
CalibrationZero calibration: automatic for each measurement
Span calibration: with equivalent filter
CompensationZero shift -300.0 to 300.0 μg/L (selectable at control panel)
ReagentsA: sulfuric acid and ammonium molybdate
B: oxalic acid
C: L (+)-ascorbic acid
Reagent exchange cycle1 week (reagent storage temperature: 30°C (86°F) or lower)
InstallationAmbient temperature0 to 45°C (32 to 113°F)
Ambient humidityRelative humidity 85% or lower (no condensation)
Ambient environment· Indoor installation type
· Transient over voltage of main power: Overvoltage category II (EN 61010-1) pollution degree 2
· A flat place with little vibration and shock
· Do not include dust, mist, corrosive gas, etc. in the atmosphere.
· Atmospheric pressure · Places not exposed to direct sunlight · Ventilated place
Measurement conditionSample condition· Temperature: 2 to 40°C (36 to 104°F) · Flow rate: 0.5 to 1.0 L/min · Pressure: 0.02 to 0.20 MPa · pH value: 11.0 or lower
· Concurrent phosphate ion concentration: 20 mg/L or lower
Without phosphate ion in 0 to 10/ 0 to 100 μg/L range (ultra pure water specification)
External input / outputConcentration outputStandard: DC 4 to 20 mA or DC 0 to 16 mA (selectable at control panel)
Optional: DC 0 to 1V or DC 1 to 5V
Marked or Hold output (selectable at control panel)
Maximum load 500Ω or lower Input / output isolated type Non-isolated between channels
Contact outputStandard: A contact output (Please specify if B contact is required)
Contact capacity AC 250V 3A, DC 30V 3A
Common measurement line: measuring, standby, maintenance, external control status, synchronize signal, equipment error,total alarm, etc.
Each measurement line: measurement line, measurement range sample lack, high concentration
Contact inputNo-voltage A contact input (open collector possible) ... For remote control
Isolated input: (-) side common
ON resistance: Up to 100Ω Open circuit voltage: Up to DC 26V Short circuit current: maximum DC 13mA
Common measurement line: measurement start, calibration start, measurement cycle switch
Each measurement line: measurement line, measurement range high, measurement range low
Device functionDisplayColor LCD touch panel
Data storageMeasured value: over one year
· Alarm history: Up to 500  · Calibration history: Up to 100  · Operation history: Up to 100
* Saveable to external memory such as USB memory


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