TW-100

Water distribution monitor

Water quality monitoring has been performed at water treatment facilities and endpoints of water supplies.

The TW-100 automatic water quality monitoring device automatically monitors daily inspection parameters such as turbidity, color, residual chlorine, and water pressure, providing support for the safety and reliability of the water supply. In addition, the reagent-free measurement and easy inspection and maintenance concept of this device makes it an ideal system for automated monitoring.

Water PressureWater Temperature

*Optional measurement items.

Подразделение: Water Pollution
Производитель: HORIBA Advanced Techno Co., Ltd.

Strength in installation

A wall-mounted unit that allows for space-saving installation. Furthermore, it is possible to use the existing outdoor panels that have already been installed by the customer.

Easy maintenance

Parts can be replaced without the use of tools. No need to call manufacturer maintenance.

Product name

Water Distribution Monitor

Model name

TW-100

Parameters

Turbidity, color, free chlorine, water pressure (standard); pH, conductivity, water temperature (option)

Methods

See chart 1.

Range

See chart 1.

Repeatability

See chart 1.

Display

LCD display: 320 x 240 dot B&W graphic LCD with backlight (touch panel type)
Standard version simultaneously displays four measurement categories (turbidity, color, free chlorine, and water pressure); Optional version simultaneously displays up to seven parameters (the four parameters plus pH, conductivity, and water temperature)

Calibration method

See chart 1.

Automatic zero calibration

(Turbidity, color, free chlorine)
Calibration method: Measurement of filtered sample water
Trigger: Internal control (timer) or external control.
Interval: 1 to 9999 hours (can be set as desired within that range)
Time: 20~99 minutes(can be set as desired within that range)

Automatic cleaning

(Turbidity, color)
Cleaning method: Wiper cleaning
Trigger: Internal control (timer) or external control.
Interval: 5 to 9999 hours (can be set as desired within that range)
(Free chlorine)
Continuous cleaning with beads grinder

Sample water conditions

Temperature: 0 to 40°C (must not freeze)
Pressure: 0.1 to 0.75 Mpa
Flow rate: over 100 mL/min
Flow rate for measurement: 50 to 100 mL/min
* Be sure to flush the sample water before starting the system.
* Be sure to install a bypass for the pipe to which the system is attached.
* If there is any possibility that the sample water could freeze, please protect the system from cold temperature.

Ambient temperature/humidity

Temperature; 0 to 40°C; Humidity: 85% or less

Analog output

Type: Measurement value: Same number as parameters (4 standard, 7 as maximum)
Specifications: DC 4 to 20 mA, insulated output (no insulation between parameters), maximum load resistance 600 Ω

Output signal

Type: Power off, batch alerts, maintenance
Details: Power off: Output when power is off.
    Batch alerts: Cell temperature error, compensation temperature error,
    cell wiper error, internal communication error,
    water leak, battery error, upper and lower limit of measurement, light source error,
    zero calibration, span calibration,
    analyzer error
    Maintenance: Output when the system is in maintenance or calibration mode.
Specifications: Non-voltage contact output, a contacts
Contact ratings: AC 125 V, 0.3 A, DC 30 V, 1 A (depends on resistance load), each output COM is independent.

Input signal

Type: Cleaning start, zero calibration start, error check sequence start, error water sampling start
Details: Cleaning start: Cleaning procedure initiated with closed contact input
    Zero calibration start: Zero calibration initiated with closed contact input
    Error discrimination start: Error discrimination initiated with closed contact input
    Error water sample sampling start: Error water sample sampling initiated with closed contact input
Specifications: Non-voltage contact input (open collector contact can be used), insulated input
Resistance when ON: Maximum 100 W; Open voltage: DC 26 V; Short-circuit current: Max. 13 mA

Communications

 Interface: RS-232C compliant (*Remote monitoring system is option)

Functions

Estimation of sample water volume (counting type), internal water leak detection, error water sampling

Data memory

Measurement values for each parameters are stored in the unit’s data memory. Data can be transferred to a CF card.
Memory interval: 1 minute or 1 hour
Memory schedule: At the top of the hour
Data memory longevity: 1 minute intervals: About 10 days; 1 hour intervals: About 1 year.
* The latest data is written to up date a series of data.

Wiring contact

Wiring ground: For power source: φ4.5 to φ6; For input/output: φ12.5 to φ14

Piping contact

Sample water input: Rc 1/4; Drainage: Rc 1/4; Calibration solution input: Rc 1/8; Error sample sampling aperture: Rc 1/8

Construction

Designed for indoor installation. * Housed in a special case (frame) for exterior installation (option).

Power

AC 100 V to AC 230 V, ±10%, 50/60 Hz

Power consumption

AC 100 V to AC 120 V: 120 VA; AC 100 V to AC 230 V: 150 VA

Mass

Approx. 15 kg (Measurement unit only)

External dimensions

 350 mm (W) x 160 mm (D) x 420 mm (H) (not including installation fixtures and projecting portions)

Paint color/Material

Munsell 5PB8/1; Unit case is made of SUS.

Installation environment

・Install on a flat surface without vibration shocks.
・No dust, mist, or corrosive gases in the atmosphere. ・Lower air pressure. ・No direct sunlight.
・Ventilated air. ・2,000 m or less above sea level.


[Chart 1]
■Standard type

ParametersMethodRangeRepeatabilityCalibration method
TurbidityTransmitted light absorption0 to 2 FTU, 0 to 4 FTUFull scale ±2.5%Formazin standard solution or polystyrene latex standard solution
ColorTransmitted light absorption0 to 10 CU, 0 to 20 CUFull scale ±5.0%Standard color solution
Free chlorinePolarography0 to 2 mg/LFull scale ±2.5%DPD colorimetry
Water pressureDiaphragm pressure sensor0 to 1 MPaFull scale ±1.0%Standard pressure gauge


■Option (each parameter can be added to the standard type)

ParametersMethodRangeRepeatabilityCalibration method
pHGlass electrodepH 2 to 12±0.1 pHpH 7 and pH 9 standard solutions
ConductivityAC bipole0 to 50 mS/mFull scale ±2.0%KCL standard solution
Water temperatureThermistor0 to 50°C±0.5°CStandard thermometer

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