Liquid Analysis Systems사의 L460 series 화학 분석기는 pH, ORP, ISE, 탁도계 및 다양한 센서를 사용하여 많은 수성 화학 종의 온라인 습식 화학 적정법에 따라 분석합니다. L460의 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
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 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
L450 OH - Online Alkalinity Analyzer
The L450 online analyzer measures alkalinity in water, wastewater, or process streams by means of a robust, non-drift differential potentiometric titration with acid. Free and total alkalinity are determined by multiple-endpoint titrations. The titration electrode does not require refilling or even routine replacement. The method does not require calibration, and typically requires only one reagent. With the exception of a stir bar, no wearing parts such as peristaltic pump tubes and no drift-prone devices such as gel-filled electrodes are used. Because of this, annual maintenance is minimized. In addition, sampling and replenishment systems are available to satisfy a range of process requirements.
L450-OH Analyzer has configuration of Base model with one pH titration cell, standard precision titrant dose pump, one sample/waste pump, single stream inlet, 4-20 mA output.
Options
CLx Additional current loop output(s), 4-20 mA, isolated
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 | Potentiometric pH titration with sulfuric acid. Differential endpoint with first breakpoint as free and second as total alkalinity. |
| Ranges |
Configurable over 50:1 range, e.g., 20 to 1000 ppm Cl |
| Repeatability | Settable: 2% of range |
| Cycle time | Minimum 4 to 7 minutes per stream |
| Equipment Stability | Better than 1% / yr |
| Reagent consumption | 50 to 500 µl/test, dependant on process value and range |
| Power required | 100/240 VAC or 24 VDC |
| Sample streams | Standard:1 Optional: up to 5 |
| Sample conditions | Standard: 5 to 25 psig, < 25 µm particulate, 10 to 60 °C Other: consult factory |
| Sample connection | ¼” NPT-F |
| Water (for option SS or high range samples) | 100K ohm resistivity, minimum 20 to 60 psi, ¼” tube or NPT-F connection |
| Air supply (for option SS) | Compressed, oil-free, ¼” tube or NPT-F connection |
| Waste | ½” tube connection to drain |
| Leak | 3 /8” tube connection to drain |
| Drain | ½” NPT. Drain must be vented or unpressurized. |
| 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 process value, maintenance alarm relay. |
Specifications are subject to review of sample conditions.
