Liquid Analysis Systems사 L460 series 화학분석기는 신뢰할 수있는 온라인 비색 측정 (colorimetric measurement)를 수행합니다
L460은 최대의 신뢰성과 사용 편의성 및 최소 운영 비용으로 운영이 가능하도록 최적화 되어 있습니다.
L460 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
L460Cr - Total Chronium Analyzer
The at-line L460 analyzer measures total chromium in water by means of chromic conversion and the proven, EPA-approved DPC colorimetric method for chromate. As an option, the sample can be diluted automatically to extend the analysis concentration range. The procedure includes pH buffering and sample turbidity compensation. For dependable process control, each analysis can be automatically replicated and/or trend checked prior to posting, alarming, or replenishing. Sampling can be drawn from pressurized sample stream or pumped from overflow sampler. For sample with particulate, a sample strainer with automatic backflush is offered.
L460Cr analyzer has configuration of Colorimetric at-line analyzer with 540 nm optical sensor, sample capture cell, standard precision (20 µl) reagent dose pumps, single stream inlet, 4-20 mA output.
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
- ER Sample diluter for extended analysis range
- GS Auto grab sample with sipper tube inlet.
- MS Multi-stream sampling
- SD Sample diluter for extended analysis range
- SB Sample inlet strainer with auto backflush
- SP Sample pump for unpressurized samples
Specifications
Method | EPA 7196A: Color development with Cr6+-selective DPC indicator after chromium conversion to Cr6+ form and pH adjustment with buffer. |
Interferences | Molybdenum, vanadium, mercury |
Range | Standard: 0 to 1.8 ppm. Extended: 0 to 20, 0 to 200 ppm |
Resolution | 1% of range |
Cycle time | 5 to 8 minutes per stream |
L460 drift | 2% or less / year, typical |
Reagent consumption | 400 µl/test |
Power required | 100 to 240 VAC, 50/60 Hz |
Sample streams | Standard: 1 Optional: up to 4 |
Sample conditions | Standard: 5 to 20 psig, less than 50 µm particulate, 10 to 80 °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