온라인 L450CN 분석기는 질산은을 사용한 민감하고 정확한 적정(titration)을 통해 물에서 free cyanide 또는 옵션의 total cyanide를 측정합니다. Differential endpoint detection method를 사용하면, 내부 Pt/Ag 전극의 교정이나 교체가 필요하지 않으며, 다른 method에서 흔히 볼 수있는 전극 고갈 (electrode depletion) 현상과 drift가 거의 없습니다.
본 분석기에는 colorimetric dye나 indicator를 필요로 하지 않습니다. 신뢰할 수있는 프로세스 컨트롤을 위해 각각 분석은 posting, alarm 또는 replenishing 직전에 자동으로 반복되고 (replicated) 경향성(trend)이 확인됩니다.샘플링은 가압된 샘플 스트림에서 추출되거나 오버플로우 샘플러로 부터 펌핑될 수 있습니다. 입자가 있는 샘플의 경우, automatic backflush 기능이 있는 sample strainer가 제공됩니다.
L450CN 온라인 시안 분석기는 standard precision (10 µl) titrant dose pumps와 하나의 sample/waste pump, single stream inlet, 4-20 mA output을 가진 기본 모델로 구성되며, 요구 사항에 따라 다양한 옵션을 사용할 수 있습니다.
Liquid Analysis Systems사의 L450 series 화학 분석기는 pH, ORP, ISE, 탁도계 및 다양한 센서를 사용하여 많은 수성 화학 종을 온라인 습식 화학 적정법에 따라 분석합니다. L450의 기능은 신뢰성 및 사용 편의성, 최소 운영 비용에 최적화되어 있습니다.
L450 Series Features
- Auto sample retrieval and preparation
- Result range and trend check
- Auto check of titrant, sample, and electrodes
- Output options for recording, alarming, dosing, and/or replenishing
기기의 디스플레이와 키패드를 통해 기기 사용자는 process status와 history를 보고 analysis interval과 다른 configuration parameter를 조정 또는 수정할 수 있습니다. 이 시리즈는 스트림 선택, 샘플 전처리, 샘플 또는 시약의 delivery를 위한 다양한 하드웨어 옵션을 제공합니다.
Series Options
- Multi-stream and multi-parameter analysis
- Standard precision titrant dose pumps with better than ±1.5% accuracy
- Grab sample port
- Replenishment and dosing systems
- RS 485/Ethernet networking/E mail messaging
L450CN Total Cyanide Analyzer 온라인 시안화물 측정기
The online L450CN analyzer measures free or (optionally) total cyanide in water by means of a sensitive and accurate titration with silver nitrate. With the differential endpoint detection method, the internal Pt/Ag electrode does not require calibration or replacement, and electrode depletion and drift common with other methods is eliminated. No colorimetric dyes or indicators are required. For dependable process control, each analysis is 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.
L450CN Cyanide Analyzer Options
- DI Digital input for remote control of analyses or replenishment
- DO Digital output relay with settable trip point or other control function
- EB Ethernet server for remote monitoring via web browser
- G1 Auto grab sample with sipper tube inlet.
- MSx Multi-stream sampling, x = number of streams.
- RRx Replenishment control (Relay or Pneumatic output options)
- SK Spares kit (basic and extended versions available)
- SS Sample inlet strainer with auto backflush.
Specifications
|
Method |
Differential titration with silver nitrate and Pt/Ag electrode. For total cyanide ammonium hydroxide is also added to release and detect cyanide bound to metals such as cadmium, zinc, and copper. |
|
Ranges |
Configurable over upto 50:1 range, e.g., 1 to 50 ppm CN |
|
Repeatability |
Settable: 3% of range, typical at 2 replicates. Setting drives number of replicates. |
|
Interferences |
Chloride at high concentration |
|
Cycle time |
3 to 12 minutes per stream, dependant upon span and repeatability settings |
|
Stability |
Better than 1% / yr, excluding titrant stability. No user calibration required. |
|
Reagent consumption |
~100 µl/test, dependant on process value and range |
|
Power required |
100/240 VAC or 24 VDC |
|
Sample streams |
Standard:1, Optional: up to 4 |
|
Sample conditions |
0 to 50 psig, less than 25 µm particulate, 15 to 50 °C |
|
Sample connection |
In: 1/8” tube |
|
Drain |
½” NPT. Drain must be vented or unpressurized. |
|
Vent (to drain) |
¼” tube connection |
|
Enclosure |
24” H x 20” W x 10” D, wall mount, NEMA 4X/IP66 |
|
Display/Touchscreen |
3” x 2.2”, LCD with backlight |
|
Outputs |
Standard: 4-20 mA. Maintenance alarm relay. Optional: process alarm relay with settable trip point, Ethernet, and/or serial per user requirement |
Specifications are subject to review of sample conditions.
The online L450CN analyzer measures free or (optionally) total cyanide in water by means of a sensitive and accurate titration with silver nitrate. With the differential endpoint detection method, the internal Pt/Ag electrode does not require calibration or replacement, and electrode depletion and drift common with other methods is eliminated. No colorimetric dyes or indicators are required. For dependable process control, each analysis is 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.
