HU-200TB-W Field-installation type turbidity meter

Field-installation type turbidity meter

Ideal for measuring locations with significant turbidity variations such as water intake and sedimentation tanks!

With a wide-range compatibility and automatic range switching, this turbidity meter is ideal for measuring locations with large changes in turbidity, such as water intake and sedimentation tanks. The transmitted scattered light method, long-life LED light source, and motorized wiper cleaning function ensure stable measurements.

Optional features

Stable measurements
Through the transmission/scattering light method, it is possible to cancel out variations in the light source and detector, as well as attenuation of light due to contamination. Additionally, an electric wiper cleaning function (optional) with outstanding cleaning power is offered. Furthermore, a long-life LED light source has been adopted.

Compatible with a wide range of measurement
Compatible with a wide range of turbidity levels, from low turbidity to high turbidity. (Measurement Range: Minimum 0 to 10 degrees, Maximum 0 to 2000 degrees)

Automatic range switching
Supporting four ranges.

Convenient optional feature
Equipped with an automatic zero calibration option.

Converter

Product name	Turbidity meter
Model	HU-200TB-W Industrial-use turbidity converter
Turbidity sensor type	SS-120-W Industrial-use turbidity detector
Measurement range	Kaolin		0 to 1000 (degrees) (Display range: 0 to 1100 (degrees)) or 0 to 1000 (mg/L)
	Formazin		0 to 2000 (Display range: 0 to 2200 )
	PSL		0 to 100 (degrees) (Display range: 0 to 110 (degrees))
Transmission output setting range	Kaolin		Arbitrary 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
Performance	Repeatability		Within ±2% of the reading or ±0.04 degrees, whichever is larger (checked using the solid span bottle)
	Linearity		The 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
	Accuracy		Within ±2% of reading
Transmission output	Number of current outputs:2
	Output type		4 mA to 20 mA DC, input/output isolation type
	Load resistance		900 Ω (max.)
	Linearity		Within ±0.08 mA (limited to the current linearity)
	Repeatability		Within ±0.02 mA (limited to the current repeatability)
	Error output		Provided with burnout function (3.8 mA or 21 mA)
	Hold function		Selectable between the latest value hold and the preset value hold
Contact output	Number of output points: 6
	Output type		No-voltage output contact
	R1, R2	Contact type	Relay contact, SPST (1a)
		Contact capacity	250 V AC 3 A, 30 V DC 3 A (resistance load)
		Contact function	Selectable 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)
	R3	Contact type	Relay contact, SPST (1a)
		Contact capacity	30 V DC 1 A (resistance load)
		Contact function	Selectable 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)
	FAIL	Contact type	Relay contact, SPDT (1c)
		Contact capacity	250 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 type	Relay contact, SPST (1a)
		Contact capacity	30 V DC 1 A (resistance load)
		Contact function	Status output of the transmission output range
Control output for automatic zero calibration (ZERO OUT, SAMPLE OUT)	Number of output points		2
	Output type		Voltage contact output (connection power supply voltage output)
	Contact capacity		250 V AC 0.5 A
	Contact function		SAMPLE OUT: Electric ball valve control output ZERO OUT: Solenoid valve control output
Contact input	Number of input points		4
	Contact type		Open 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	EXT1	Switchable between automatic zero calibration command and transmission hold
		EXT2	Switchable between cleaning command and transmission hold
		EXT3, EXT4	Selection command from four ranges using 2-bit contacts
Communication function	Type		RS-485
Communication function	Signal form		Two 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.)
Calibration	Calibration method		Zero calibration	By filtered clean water
			Automatic zero calibration	Zero calibration is performed automatically by switching to the filtered clean water (option)
			Span calibration	Turbidity adjustment method by coefficient input
	Compatible standard substances			Kaolin, 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.
	Setting		Calibration cycle	1 to 999 (h)
			Stability time	1 to 60 (s)
			Stability level	0.01 degrees/NTU to 0.05 degrees/NTU
			Hold time	60 s to 600 s
Cleaning function (option)	Cleaning method		Electric wiper type (executes cleaning operation by communicating with the converter)
	Setting	Cleaning cycle	0.1 to 168.0 (h)
		Cleaning time	30 to 600 s
		Hold time	60 to 600 s
	Timer accuracy		Difference within 2 min per month
Self-check	Sensor check error		Sensor error
Self-check	Converter error		CPU 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 supply	Rated power supply voltage		100 V to 240 V AC ±10% 50/60 Hz
	Power consumption		35 VA (max.) when an automatic cleaner is connected.
	Others		With built-in power switch for maintenance
Compatible standards	CE marking		EMC :EN61326-1* Class A, Industrial electromagnetic environment Safety :EN61010-1 RoHS　 :EN50581 9. Industrial monitoring and control instruments
Compatible standards	FCC rules		Part 15 Class A
Structure	Installation		Outdoor installation type
	Installation method		50 A pole-mounted or wall-mounted
	Protection class		IP65
	Material of case		Aluminum alloy (coated with epoxy-modified melamine resin)
	Material of mounting brackets		SUS304
	Material of hood		SUS304 (coated with epoxy-modified melamine resin)
	Material of display window		Polycarbonate
	Display element		Reflective monochrome LCD
External dimensions	180 mm (W) × 155 mm (H) × 115 mm (D) (excluding brackets)
Mass	Mainframe: 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 name	Turbidity detector
Model	SS-120-W
Measurement principle	90-degree transmission-scattering method
Light source	Near-infrared LED, 860 nm
Detector	Silicon photo diode
Detection window	Inside diameter: φ30 mm, hard glass tube
Data transfer	RS-485 (communication with converter)
Sample water temperature	0℃ to 45℃ (no freezing)
Sample water pressure	0 MPa to 0.3 MPa
Material of liquid contact section	PVC, SUS316, FKM, silicon, hard glass, EPDM
Cable length	Standard accessory cable: 5 m
Installation	Screwing bore size: Rc3/4
Power supply	12 V DC supplied from HU-200TB-W converter
External dimensions	131 mm (W) × 450 mm (H) × 224 mm (D) (excluding cable)
Mass	Approx. 3.5 kg (excluding cable)