Product name | Water Distribution Monitor |
Type | TW-150 |
Measurement items | (Standard configuration) turbidity, color, free residual chlorine, water pressure, pH
(Optional items) conductivity, water temperature |
Measurement Method | See Table 1. |
Measurement Range | See Table 1. |
Repeatability | See Table 1. |
Display system | LCD display
320 x 240 dot backlit change to five graphic liquid-crystal display (touch panel type)
Up to seven items including five items from standard configuration (turbidity, color, free residual chlorine, water pressure, pH)
and optional items (conductivity, water temperature) can be displayed at the same time. |
Calibration method | See Table 1. |
Automatic zero calibration | (Turbidity, color, free residual chlorine)
Calibration method: Filtrate sample water
Calibration start: Interior…started by internal timer
Exterior...started by external contact input
Calibration cycle: 5 hours to 9999 hours (user setting)
Calibration time: Approx. 15 minutes |
Automatic cleaning | (Turbidity, color)
Cleaning method: Cell window cleaning using wiper
Cleaning start: Interior...started by internal timer
Exterior...started by external contact input
Cleaning interval: 5 to 9999 minutes (user setting)
(Free residual chlorine)
Continuous cleaning by using grinding beads |
Automatic draining | Draining start: Interior...started by internal timer
Draining interval: 5 to 9999 minutes (user setting) |
Sample water condition | Temperature: 0°C to 40°C (do not freeze)
Pressure: 0.1 MPa to 0.75 MPa
Conductivity: 10 mS/m or higher
Analyzing unit input rate (flow rate): 50 mL/mi to 100 mL/min
● In test operation, flush the meter thoroughly before running water.
● Make sure to set up a bypass for piping to the meter.
● If sample water may freeze, take measures to insulate the unit from cold and to retain heat.
● Sample Water measured with this device cannot be distributed. |
Ambient temperature,humidity | Ambient temperature: 0°C to 40°C
Ambient humidity: 85% or lower |
Analog output | Type: Measurement values: Number of outputs corresponds to number of measurement values (up to seven values including five values of the standard configuration)
Specifications: 4 mA to 20 mA DC, insulated output (non-insulated between items)
Maximum load resistance: 600 Ω |
Contact output | Types: Power failure, batch alarm, maintenance
Contents: Power failure…occurs when the power is turned off
Batch alarm…cell temperature adjustment abnormality, temperature compensation abnormality,
cell wiper abnormality internal communication abnormality, leak, battery abnormality,
concentration upper limit concentration lower limit,concentration device upper limit,
concentration device lower limit, light source abnormality zero calibration, span calibration, analyzer abnormality
Maintenance…when the system enters maintenance or calibration mode
Specifications: No-voltage contact output, a contact interface
Contact rating: 125 V AC 0.3 A, 30 V DC 1 A (at resistance load)
Each output is an independent COM interface. |
