HU-200TB-W

Field-installation Type Turbidity Meter (Four-Wire Transmission, For Wide Range)

HU-200TB-W is a turbidity meter developed to continuously measure turbidity in processes with large turbidity changes, such as water intake and sedimentation tanks in water supply plants. It employs  transmission 90-degree scattered light method and is ideal for monitoring changes in processes with large turbidity changes from low range (10 degrees) to high range (2000 degrees). An electric wiper cleaning  can be installed as an option, and long-term stable measurement is possible by periodic cleaning.

Measurement range

0 - 1000  Degrees(Standard solution:Kaolin)
0 - 2000 Degrees(Standard solution:Formazin)
0 - 100 Degrees(Standard solution:PSL)

Tough

  • Responds to harsh conditions at the site process
      Operating temperature range(Transmitter):-20 - 55℃
      Rated power supply voltage: AC 100  - 240 V ± 10 % 50/60 Hz
      Robust aluminum die cast (Protection code:IP65)
  • CE Marking and FCC Compliance suitable for use at overseas sites

 

Intelligence

  • Convenient function to display liquid temperature at the same time(Transmission output available)
  • Sensor error can be detected immediately by self-diagnosis function
  • Designed to be environmentally friendly (Pb-free) in response to WEEE and RoHS

 

Easy maintenance

  • Easy to view big display
  • Easy operation
  • Calibration log memory
  • Screw terminals that do not fall off are used in the terminal block for wiring

Converter

Product nameTurbidity meter
ModelHU-200TB-W Industrial-use turbidity converter
Turbidity sensor
type
SS-120-W Industrial-use turbidity detector
Measurement rangeKaolin0 to 1000 (degrees) (Display range: 0 to 1100 (degrees)) or 0 to 1000 (mg/L)
Formazin 0 to 2000 (Display range: 0 to 2200 )
PSL0 to 100 (degrees) (Display range: 0 to 110 (degrees))
Transmission output
setting range
KaolinArbitrary setting within the range from 0.00 to 10.00 (degrees), 0.0 to 100.0
(degrees), 0 to 2200 (degrees)
Formazin (NTU)
PSL
Display resolution 
  • 0.01 degrees (Degree range: 0 to 10 (degrees))
  • 0.1 degrees (Degree range: 0 to 100 (degrees))
  • 1 degrees (Degree range: 100 to 2200 (degrees))
    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 solid 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
AccuracyWithin ±2% of reading
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 points: 6
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, cleaning output and automatic calibration (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)
 
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, cleaning output and automatic calibration (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 function
Error 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 (ZERO
OUT, SAMPLE
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
ConditionON resistance: 100 Ω max.
Open-circuit voltage: 24 V DC
Short-circuit current: 12 mA DC max.
Contact
function
EXT1Switchable between automatic zero calibration command and transmission hold
EXT2Switchable between cleaning 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 (NTU), 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 level0.01 degrees/NTU to 0.05 degrees/NTU
Hold time60 s 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 time30 to 600 s
Hold time60 to 600 s
Timer accuracyDifference within 2 min per month
Self-checkSensor check errorSensor error
Converter errorCPU abnormality, ADC abnormality, memory abnormality
Operating
temperature range
−20℃ to 55℃(no freezing)
Operating humidity
range
Relative 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 mm (W) × 155 mm (H) × 115 mm (D) (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-W
Measurement principle90-degree transmission-scattering method
Light sourceNear-infrared LED, 860 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 MPa 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-W converter
External dimensions131 mm (W) × 450 mm (H) × 224 mm (D) (excluding cable)
MassApprox. 3.5 kg (excluding cable)

 

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