Analyzer 2850Si Silica 4/Enc
Innovative Sub-ppb Silica Monitoring.The 2850Si 4/ENC Silica Analyzer offers fast and reliable multi-stream silica monitoring for power plant water chemistry. Maximize uptime and achieve superior performance in this compact analyzer with intelligent diagnostics.
Save Space, Increase Productivity
Make the most of valuable panel space by implementing this compact design with a built-in 4-stream sequencer, leaving room to install other analytics.
Achieve Low Total Cost of Ownership
Get efficient sub-ppb silica analysis using 75% less reagent than other analyzers. Monitored reagent usage allows for proactive inventory planning.
Ensure Optimal System Performance
Simplify maintenance for dependable operation with intelligent diagnostics, while accurate alarm verification boosts control room confidence.
Material No.: 30571933
Features
Small Footprint, More Functionality
The 2850Si 4/ENC silica analyzer delivers early, trace-level silica detection in a compact, enclosed design for maximum installation flexibility. Multi-stream silica capabilities allow you to do more with a single analyzer.
Fast and Efficient Silica Analysis
The 2850Si silica analyzer delivers accurate and reliable silica analysis with measurement updates every 10 minutes, but only uses 1/4 of the reagents compared to other silica analyzers, reducing overall reagent consumption and analyzer operating costs.
Eliminate Complexity with Intuitive UI
The 2850Si 4/ENC silica analyzer uses a built-in M800 Transmitter. The intuitive user interface guides you through quick setup and allows you to create shortcuts. Easy configuration helps meet specific display needs and simplifies training and operation.
Simplify Your Maintenance Strategy
Intelligent monitoring of reagent usage and tube/filter status enables proactive inventory and service planning. Simplify maintenance further by using METTLER TOLEDO expert services to ensure optimal performance throughout the life of the analyzer.
Better Manage Your Water Chemistry
The 2850Si 4/ENC Analyzer comes with 10+ different internal diagnostics and flexible communication options to leverage key outputs from multiple streams as part of our verified water chemistry technology that enables smart alarms.
Specifications
Specifications - Analyzer 2850Si Silica 4/Enc
| Silica measurement range | 0-5000 ppb, limit of detection per ASTM Method D7126 |
| Operating Range (Temp.) | 5 °C – 60 °C 41 °F – 140 °F |
| Sample Flow rate | 50 – 250 mL / min |
| Process Connection | Sample inlet: 6 mm or 1/4" OD tube SS compression fitting Drain hose: 19 x 25.4 mm (¾ x 1"), 2 m (6 ft) length included |
| Protection Rating | IP55 |
| Ingress Protection | IP55 (Enclosure) IP66 / NEMA4X (Electronics) |
| Silica Measurement Accuracy | ± 5 % of reading or ± 1 ppb, whichever is greater |
| Operator Interface | Simultaneous display of silica concentration and measurement or auto-cal status TFT color touchscreen |
| Zero calibration | Automatic, every measurement cycle |
| Analog Output | Powered 0 / 4 – 20 mA, 22 mA alarm, 500 ohm max load, not for use with externally powered circuit |
| Analog Output Scaling | Linear, bi-linear, logarithmic (1,2,3,4 decades), auto ranging |
| Power Supply | 100 – 240 VAC, 50 – 60 Hz, 100 W on power loss all settings are retained without batteries |
| Power Supply (AC/DC) | 100 V – 240 V |
| Flow Rate | 50 mL/min – 250 mL/min |
| Digital Input | Remote start / stop of measurement cycle |
| Measurement Parameter | Silica |
| Reagent Consumption | Approx 500 mL each per 3 months with 20 min measurement cycle time |
| Humidity | 10 – 90 % non-condensing |
| Communication | PROFIBUS DP |
| Grab Sample Measurement | 500 mL capacity |
| Sample Pressure | 0.3 – 7 bar (5 – 100 psig) |
| Analog Output Accuracy | ± 0.05 mA |
| Measurement Cycle Time | 20 min typical Adjustable ≥ 10 min |
| Weight | 18 kg (40 lbs) |
| Sample Temperature | 5 – 60 °C (41 – 140 °F) |
| Model Family | 2850Si |
| EnclosureType | Full |
| Dimensions HWD | Enclosure: 543 x 413 x 300 mm (21.4" x 16.3" x 11.8") |
| Outputs | 8 Powered 0 / 4 – 20 mA |
| Relay Contact(s) | 4-SPST Type Reed 250 VAC or DC, 0.5 A 4-SPST mechanical rated at 250 VAC, 3 A |
| Resolution | 4 digits with decimal, autoranging 0.001 ppb in lowest range |
| Built-in sequencer | Yes |
| Ambient Operating Temperature | 10 – 50 °C (50 – 122 °F) |
| Ratings/Approvals | CE, cULus |
| Span calibration | Automatic per schedule once per month, typical |
Documentation
White Paper
This white paper describes how control of silica and phosphate at power plants require different strategies. With reliable, actionable insights from o...
