HU-200TB-H

Field-installation type turbidity meter

For low turbidity management of filtered water, such as in distribution reservoirs.

Ideal for low turbidity management of filtered water in applications such as reservoirs. By employing the transmitted scattered light method and an electric wiper cleaning function, stable measurements are achieved.

**

*Optional features

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

Stable measurement

The transmittance/scattering light method cancels out variations in light source, detector, and attenuation of light due to contamination.  Additionally, featuring an electric wiper cleaning function (optional) that provides an overwhelming cleaning capacity.

High-brightness LED light source in use

Capable of measurements with a minimum resolution of 0.001 degrees.

Automatic range switching

Supporting four ranges.

Convenient optional feature

An optional pressurized de-aerating tank is available.

Converter

Product nameHigh-sensitivity turbidity meter
ModelHU-200TB-H Turbidity converter
Turbidity sensor
type
SS-120-H Turbidity detector
Measurement rangeKaolin0 to 10.00 (degrees) (Display range: 0 to 11.00 (degrees))
Formazin (NTU)0 to 10.00 (NTU) (Display range: 0 to 11.00 (NTU))
PSL0 to 10.00 (degrees) (Display range: 0 to 11.00 (degrees))
Transmission output
setting range
KaolinArbitrary setting within the range from 0 to 0.1 (degrees) to 0 to 11 (degrees)
Formazin (NTU)
PSL
Display resolution
  • 0.001 degrees (Range: 0 to 2)
  • 0.01 degrees (Range: 0 to 10)
    Selectable between fixed range (decimal point) and automatic range changeover
PerformanceRepeatabilityWithin ±2% of the reading or ±0.04 degrees, whichever is larger (checked using the span bottle)
LinearityThe deviation at the mid-range point of the span calibration value is within ±2% of the span calibration value or ±0.04 degrees, whichever is larger
Transmission output

Number of current outputs

2
Output type4 mA to 20 mA DC, input/output isolation type
Load resistance900 Ω(max.)
LinearityWithin ±0.08 mA (limited to the current linearity)
RepeatabilityWithin ±0.02 mA (limited to the current repeatability)
Error outputProvided with burnout function (3.8 mA or 21 mA)
Hold functionSelectable between the latest value hold and the preset value hold
Contact outputNumber of output points6
Output typeNo-voltage output contact
R1, R2Contact typeRelay contact, SPST (1a)
Contact capacity250 V AC 3 A, 30 V DC 3 A (resistance load)
Contact functionSelectable from among the upper limit alarm, lower limit alarm,during transmission output hold, and cleaning output (closed at alarm operation, open under normal conditions and in a power-OFF state)
Description of alarm
  • Setting range: Within turbidity measurement range
  • Delay time: 0 s to 600 s
R3Contact typeRelay contact, SPST (1a)
Contact capacity30 V DC 1 A (resistance load)
Contact functionSelectable from among the upper limit alarm, lower limit alarm, during transmission output hold, and cleaning output (closed at alarm operation, open under normal conditions and in a power-OFF state)
Description of alarm
  • Setting range: Within turbidity measurement range
  • Delay time: 0 to 600 (s)
FAILContact typeRelay contact, SPDT (1c)
Contact capacity250 V AC 3 A, 30 V DC 3 A (resistance load)
Contact functionError alarm (closed under normal condition, open in an error or power-OFF state)
Description of alarm
  • Error alarms for values outside the measurement range,self-checks, and calibration errors can be set
  • Delay time: 0 to 600 (s)
RANG1,
RANG2
Contact typeRelay contact, SPST (1a)
Contact capacity30 V DC 1 A (resistance load)
Contact functionStatus output of the transmission output range
Control output for
automatic zero
calibration (SAMPLE
OUT, ZERO OUT)
Number of output points2
Output typeVoltage contact output (connection power supply voltage output)
Contact capacity250 V AC 0.5 A
Contact functionSAMPLE OUT: Electric ball valve control output
ZERO OUT: Solenoid valve control output
Contact inputNumber of input points4
Contact typeOpen collector no-voltage “a” contact
Condition
  • ON resistance: 100 Ω max.
  • Open-circuit voltage: 24 V DC
  • Short-circuit current: 12 mA DC max.
Contact
function
EXT1Switchable between cleaning command and transmission hold
EXT2Switchable between automatic zero calibration command and
transmission hold
EXT3, EXT4Selection command from four ranges using 2-bit contacts
Communication
function
TypeRS-485
Signal formTwo wire type, the power source of the communication is isolated from the power of measurement circuit. (The power source of transmission and communication are not isolated.)
CalibrationCalibration methodZero calibrationBy filtered clean water
Automatic zero
calibration
Zero calibration is performed automatically by switching to the filtered clean water (option)
Span calibrationTurbidity adjustment method by coefficient input
Compatible standard substancesKaolin, Formazin, PSL
Automatic zero
calibration (option)
Zero calibration
method
The electric valve of a sample line is closed, the electromagnetic valve of a zero line is opened, measured value is automatically judged to be zero within a time, and zero calibration is carried out.
SettingCalibration
cycle
1 to 999 (h)
Stability time1 to 60 (s)
Stability level0.001 to 0.005 (degrees/NTU)
Hold time60 to 600 (s)
Cleaning function
(option)
Cleaning methodElectric wiper type (executes cleaning operation by communicating with the converter)
SettingCleaning cycle0.1 to 168.0 (h)
Cleaning time20 to 600 (s)
Hold time60 to 600 (s)
Timer accuracyDifference within 2 min per month
Self-checkConverter errorCPU abnormality, ADC abnormality, memory abnormality
Operating temperature range−20℃ to 55℃ (no freezing)
Operating humidity rangeRelative humidity: 5 to 90 (%) (no condensation)
Storage temperature−25℃ to 65℃
Power supplyRated power supply
voltage
100 V to 240 V AC ±10% 50/60 Hz
Power consumption35 VA (max.) when an automatic cleaner is connected.
OthersWith built-in power switch for maintenance
Compatible
standards
CE markingEMC    :EN61326-1*
     Class A, Industrial electromagnetic environment
Safety   :EN61010-1
RoHS   :EN50581
      9. Industrial monitoring and control instruments
FCC rulesPart 15 Class A
StructureInstallationOutdoor installation type
Installation method50 A pole-mounted or wall-mounted
Protection classIP65
Material of caseAluminum alloy (coated with epoxy-modified melamine resin)
Material of mounting
brackets
SUS304
Material of hoodSUS304 (coated with epoxy-modified melamine resin)
Material of display windowPolycarbonate
Display elementReflective monochrome LCD
External dimensions180 (W)  × 155 (H)  × 115 (D) mm (excluding brackets)
MassMainframe: approx. 3.5 kg (excluding brackets), hood, bracket: approx. 1 kg

*:  The surge test specified in the EMC Directive for CE Marking shall not apply to the case when a sensor cable, transmission cable, or contact input cable is extended for 30 m or longer.

Note

Although an arrestor (400 V discharge starting voltage) is mounted for the output signal, contact input, and communication, install an optimum surge absorber element on the connection line, depending on the surrounding environment, device installation conditions, and external connection devices.

Detector

Product nameTurbidity detector
ModelSS-120-H
Measurement principle90-degree transmission-scattering method
Light sourceRed LED, 660 nm
DetectorSilicon photo diode
Detection windowInside diameter: φ30 mm, hard glass tube
Data transferRS-485 (communication with converter)
Sample water temperature0℃ to 45℃ (no freezing)
Sample water pressure0 to 0.3 (MPa)
Material of liquid contact sectionPVC, SUS316, FKM, silicon, hard glass, EPDM
Cable lengthStandard accessory cable: 5 m
InstallationScrewing bore size: Rc3/4
Power supply12 V DC supplied from HU-200TB-H converter
External dimensions131 (W) × 450 (H) × 224 (D) mm
MassApprox. 3.5 kg (excluding cable)

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