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〈Catalog〉Industrial Water Quality Measuring Instruments
Converter
| Product name | Industrial-use MLSS meter | ||
|---|---|---|---|
| Converter type | HU-200SS industrial-use MLSS converter | ||
| Detector type | SS-90 MLSS detector for industrial use | ||
| Measurable range | Activated sludge (MLSS) | 0 to 20000 mg/L (MLSS) | |
| Kaolin | 0 to 10000 mg/L (white inorganic powder) | ||
| Clay (inorganic mud) | 0 to 20000 mg/L (gray inorganic mud) | ||
| Transmission output setting range | Activated sludge (MLSS) | Arbitrary setting within the range from 0 to 1000 mg/L to 0 to 20000 mg/L | |
| Kaolin | Arbitrary setting within the range from 0 to 1000 mg/L to 0 to 10000 mg/L | ||
| Clay (inorganic mud) | Arbitrary setting within the range from 0 to 1000 mg/L to 0 to 20000 mg/L | ||
| Display resolution | 1 mg/L (0 to 10000mg/L) 10 mg/L (10000 to 22000mg/L) | ||
| Performance | Repeatability | Within a reading value ±3% or ±10 mg/L, whichever is larger. (sensor connecting sludge measured value) | |
| Transmission output | Number of output points | 1 | |
| Output type | DC 4 mA to 20 mA, input/output insulation type | ||
| Load resistance | 900 Ω maximum | ||
| Linearity | Within ±0.08mA (for output only) | ||
| Repeatability | Within ±0.02mA (for output only) | ||
| Error output | With the burnout capability (3.8 mA or 21 mA) | ||
| Hold capability | Either the last value hold or the arbitrary value hold is to be selected. | ||
| Contact output | Number of output points | 3 | |
| Output type | No-voltage contact output | ||
| Contact type | Relay contact, SPDT (1c) | ||
| Contact capacity | 250 V AC, 3 A, 30 V DC, 3 A (resistance load) | ||
| Contact capability | R1, R2 | Selectable from upper limit alarm, lower limit alarm, transmission output Hold, and cleaning output. (opened at alarm operation, closed usually, closed at power-off) | |
| FAIL | Error warning (normally closed; open when an error occurs; open when the power is turned OFF) | ||
| Description of alarm |
| ||
| Cleaning output | Number of output points | 1 | |
| Output type | Active voltage contact output (connected supply voltage output) | ||
| Contact type | Relay contact, SPST (1a) | ||
| Contact capacity | 250 V AC 0.5 A | ||
| Contact capability | Solenoid valve drive for cleaning | ||
| Setting | Cleaning frequency | 0.1 h to 168.0 h | |
| Cleaning time | 2 s to 600 s | ||
| Hold time | 2 s to 600 s | ||
| Timer accuracy | Within 2 min per month | ||
| Description of cleaning operation |
| ||
| Contact input | Number of input points | 1 | |
| Contact type | No-voltage a contact for open collector | ||
| Condition | ON resistance: 100 Ω maximum Open-circuit voltage: 24 V DC Short-circuit current: 12 mA DC maximum | ||
| Contact capability | Can be selected from cleaning directives and transmission hold. | ||
| Communication capability | Type | RS-485 | |
| Signal type | Two-wire input/output insulation type (not insulated from transmission output) | ||
| Calibration | Calibration method |
| |
| There is a feature that allows you to match an instrument indicated value to a hand analyzed value of sludge (by the Mass method). | |||
| Self-check | Sensor check error | Sensor error | |
| Converter error | CPU abnormality, ADC abnormality, memory abnormality | ||
| Operating temperature range | −20℃ to 55℃ (without freezing) | ||
| Operating humidity range | Relative humidity: 5% to 90% (without due condensation) | ||
| Storage temperature | −25℃ to 65℃ | ||
| Power source | Rated power supply voltage | 100 V to 240 V AC ±10% 50/60Hz | |
| Power consumption | 20 V A (max) | ||
| Others | A power switch for maintenance is incorporated. | ||
| Compatible standards | CE marking | EMC : EN61326-1 Class A, Industrial electromagnetic environment Safety : EN61010-1 RoHS : EN50581 9. Industrial monitoring and control instruments | |
| FCC rules | Part15 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 (epoxy glue degeneration melamine resin painting) | ||
| Material of display window | Polycarbonate | ||
| Display element | Reflective monochrome LCD | ||
| External dimensions | 180 (W) mm × 155 (H) mm × 115 (D) mm (excluding brackets) | ||
| Mass | Mainframe: approx. 3.5 kg, hood, bracket: approx. 1 kg | ||
*1: 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.
*2: An arrester (electric discharge voltage: 400 V) is provided for transmission output, contact input, and communications. However, incorporate and use an optimal surge absorption element on the connected line according to the ambient environment, equipment installation situations, and externally connected equipment, etc.
Detector
| Product name | MLSS detector for industrial use |
|---|---|
| Model | SS-90 |
| Measuring principle | Light transmission method |
| Light source | Infrared LED, 880 nm, approx. 10 Hz, AC blinking |
| Detector | (transmitted light/reference light) |
| Cell length | Approx. 7 mm |
| Data transfer | RS-485 (communication with the converter) |
| Self-check | Water immersion detection |
| Operating temperature range | 5℃ to 50℃ (without freezing) |
| Storage temperature | −25℃ to 65℃ |
| Measured liquid pressure | 0 MPa to 0.2 MPa |
| Material of wetted part | PPO SUS316 PFA FKM EPDM PVC |
| Cable length | 10 m (standard), maximum extension: 50 m (overall length: 60 m) |
| Power source | 12 V DC supplied from the HU-200SS converter |
| External dimensions | 48 mm in diameter x 250 mm in length (excluding the cable) |
| Mass | Approx. 0.8 Kg (excluding the cable) |
