Liquid Analysis Systems사 L450 series 화학분석기는 신뢰할 수있는 온라인 비색 측정 (colorimetric measurement)를 수행합니다
L450은 최대의 신뢰성과 사용 편의성 및 최소 운영 비용으로 운영이 가능하도록 최적화 되어 있습니다.
L450 Sereis Features
• Auto sample retrieval and preparation
• Auto-check of titrant, sample, and sensors
• Result range and trend check
Through its display and keypad, users can view process status and history, and modify analysis intervals and other configuration parameters. This series offers a variety of hardware options for stream selection, sample preparation, and sample/reagent delivery.
Series Options
• Multi-stream analysis
• Grab sample port
• Auto sample filter back flush
• Sample diluter for extended range
• Replenishment and dosing systems
• RS 485/Ethernet networking/email messaging
L460 Silica LR A Analyzer
The low range L450 Silica LR analyzer measures silica in water by means of the proven Heteropoly Blue method with pH buffering. 1 Citric acid is used to destroy interfering phosphate complexes. A reducing agent is used to develop an intense blue color for this low range analysis. For dependable process monitoring, each analysis is automatically replicated prior to posting or alarming. Process level relay(s) with settable trip point and a maintenance alarm relay are provided. Low drift is accomplished by auto-corrections for reaction rate and optical clarity. Sample is drawn from pressurized streams or loops. For sample with significant particulate, a sample strainer with automatic backflush is offered. An optional grab sample port is offered.
L450-Silica LR has configuration of Low range colorimetric silica analyzer with multi-stream options. Process alarm relays included.
Options
- DI Digital input for remote enable of analyses or dosing
- DO Digital output relay with settable trip point or other control function
- EB Ethernet server for remote monitoring via web browser
- GS Auto grab sample with sipper tube inlet.
- MS Multi-stream sampling
- PV Current loop process value output
- SB Sample inlet strainer with auto backflush
Specifications
| Method | pH adjustment is followed by color development with molybdate reagent. Citric acid releases interference from phosphate complex. A reducing agent further develops an intense blue complex for this low range measurement. Intensity measured at 810 nm are used to determine concentrations. |
| Range | Standard: 0 to 2 ppm as silica Other: consult |
| Repeatability | ≤4% of range |
| Cycle time | 5 to 10 minutes per stream, dependent upon sample temperature and repeatability settings |
| Equipment drift | Better than 3% / year. Auto optical drift compensation is included. |
| Reagent consumption | Upto 500 µl/test |
| Power required | 100 to 240 VAC, 50/60 Hz |
| Sample streams | Standard: 1 Optional: up to 8 |
| Sample conditions | Standard: 5 to 20 psig, less than 50 µm particulate, 15 to 60 °C Other: consult factory |
| Sample connection | ¼” NPT |
| Air supply (for option SB) | Compressed, oil-free, ¼” tube or NPT-F connection |
| Waste | ¼” NPT. ½“ tube adapter provided. |
| Leak | 3/8” tube connection |
| Enclosure | 22”Hx18”Wx10”D (55x46x26cm), wall mount, NEMA 4X/IP66 |
| Display | 3” x 2.2”, LCD with backlight |
| Outputs | Standard: 4-20 mA process value(s), maintenance alarm relay. Optional: alarm relay with settable trip point, Ethernet, and/or serial network per user requirements. |
Specifications subject to change
