Silica Analyzer 8241

THIS PRODUCT IS DISCONTINUED and has been replaced with our Silica Analyzer 9041.

The 8241 Silica monitor has been designed with the greatest simplicity in mind. Developed as continuous monitor offering wide dynamic ranging, the 8241 features a carefully designed liquid handling section, which reduces maintenance to an absolute minimum. Cost effective ownership is insured through the utilization of microprocessor-based electronics that offer automatic calibration, continuous sample monitoring and programmable multi-stream switching.

Spare Parts

Reagents

Manuals

MSDS Sheets

FEATURES		BENEFITS
Programmable Auto Zero Facility		Automatically compensates for sample color and reagent background silica. True auto zero.
Unique Heated Block Assembly		Maintains full temperature control over chemical reactions and optical measurement system.
Fully Programmable Multi-Stream Option		Six stream capability maximizes operational control for monitoring a number of samples from different locations
Dynamic Mixing and Temperature Control		Insures full mixing and reproducible control of samples and reagents guaranteeing complete chemical reaction
Low Maintenance Sample Pump		Annual pump tubing replacement maximizes on-line availability
Microprocessor-Based High Specification Electronics		Controls all measurement and management functions, eliminating operator attention after set-up
Comprehensive Self-Diagnostics		Minimizes operator error and optical source maintenance needs
Continuous Uninterrupted On-Line Measurement Cycle		Insures optimum speed of response

INSTALLATION GUIDELINES
Installation Information: The monitor should be installed where the following conditions can be maintained.

Sample flow: 5 to 750ml/min. Suspended solids: < 10 ppm, <60 microns. Ambient temperature: Normally within the range 5 to 40°C.		Sample temperature: Within the range 5 to 55°C. Reagent solutions: Consumption of each reagent is 10 liters (2 1 /2 Gallons) per month. Calibration solutions: A solution of one liter is required of concentration and formulation suitable for the particular range and application.

GENERAL SPECIFICATIONS

Range: Silica: Within the range 0 to 2000ppb. Phosphate: As P within the range 0 - 20ppm. As P043 within the range 0-60ppm. Repeatability: Silica: Accuracy ±2% of reading or ±2ppb, whichever is greater. Phosphate: Accuracy ±2% of reading. Reproducibility: Silica: ±2% of reading or ±2ppb, whichever is greater. Phosphate: ±2% of reading. Response time: Less than 7 minutes for initial step change. Chemical drift: Dependent on reagents - typically less than ±5% of reading/month. Control temperature range: Silica: 35 to 45°C Phosphate: 35 to 45°C Temperature resolution: ±0.1 °C Dimensions: 29.13"H x 21.26"VC/ x 10.04"D (Inches). Degree of protection: Electronics section - NEMA 4x/IP65. Liquid Handling - case IP31, critical internal components NEMA 4x/IP65. Security code: Preset or user programmable.		Current outputs: SINGLE STREAM OR MULTISTREAM As standard, two isolated current outputs 0 to 1, 0 to 10, 0 to 20, or 4 to 20mA, software selectable. Range independently selectable over the full range of the monitor. Maximum voltage load is 15V. Computer interface: Optional second current output or RS422/423 serial interface. Alarms: SINGLE STREAM Two concentration relay outputs. Can be configured as high or low concentration. 'Out-of-sample' alarm, remote calibration-mode indication and remote monitor 'out-of-service' alarm. MULTISTREAM Maximum of six (one per stream) relay outputs. Can be configured as high or low concentration, or 'out-of-sample' alarms. Remote calibration-mode indication. Remote monitor 'out-of-service' alarm. Concentration alarm adjustment: Programmable over range of monitor. Calibration: Frequency and time of day programmable, fully automatic, plus manual initiation on demand. Power supply: 110 to 120V or 220 to 240V; 50/60Hz, 100VA. +6% to -20% tolerance. Isolation voltage: Input, output, and power supply 1.5kV.

Displays: Concentration and programming data by back-lit LCD graphics display module. Status indication: SINGLE STREAM Single LED per alarm (two) Single LED illuminated when 'HOLD' switch is operated Single LED illuminated when calibration is in progress Single LED illuminated when monitor is 'out-of-service' Single LED illuminated when monitor is 'out-of-sample' MULTISTREAM Single LED per alarm (six) Single LED illuminated when 'HOLD' switch is operated Single LED illuminated when calibration is in progress Single LED illuminated when monitor is 'out-of-service' Six LED's indicate sample selected