White Paper
This white paper describes how control of silica and phosphate at power plants require different strategies. With reliable, actionable insights from o...
Analyzer 2850Si Silica 1/Pnl
Innovative Sub-ppb Silica Monitoring.The 2850Si 1/PNL Silica Analyzer offers fast, reliable and effective 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 or upgrading to this compact, space-saving analyzer, 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.
Specifications - Analyzer 2850Si Silica 1/Pnl
| Silica measurement range | 0.5 ppb - 5,000 ppb |
| Phosphate measurement range | 0.3 - 10 ppm |
| Operating Range (Temp.) | 5 °C – 60 °C ; 41 °F – 140 °F |
| Ambient Operating Temperature | 10 – 50 °C (50 – 122 °F) |
| Analog Output | Powered 0 / 4 – 20 mA, 22 mA alarm, 500 ohm max load, not for use with externally powered circuit |
| Analog Output Accuracy | ± 0.05 mA |
| Analog Output Scaling | Linear, bi-linear, logarithmic (1,2,3,4 decades), auto ranging |
| Built-in sequencer | No |
| Communication | PROFIBUS DP |
| Digital Input | Remote start / stop of measurement cycle |
| Dimensions HWD | Panel: 533 x 368 x 270 mm (21.0" x 14.5" x 10.6") |
| EnclosureType | Panel |
| Flow Rate | 50 mL/min – 250 mL/min |
| Grab Sample Measurement | 500 mL capacity |
| Humidity | 10 – 90 % non-condensing |
| Ingress Protection | IP66 / NEMA4X (Electronics) |
| Measurement Cycle Time | 20 min typical; Adjustable ≥ 10 min |
| Measurement Parameter | Silica |
| Model Family | 2850Si |
| Operator Interface | Simultaneous display of silica concentration and measurement or auto-cal status; TFT color touchscreen |
| Outputs | 8 Powered 0 / 4 – 20 mA |
| Power Supply | 100 – 240 VAC, 50 – 60 Hz, 100 W; on power loss all settings are retained without batteries |
| Power Supply (AC) | 100 V – 240 V |
| 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 |
| Ratings/Approvals | CE, cЯUus |
| Reagent Consumption | Approx 500 mL each per 3 months with 20 min measurement cycle time |
| Relay Contact(s) | 4-SPST mechanical rated at 250 VAC, 3 A; 4-SPST Type Reed 250 VAC or DC, 0.5 A |
| Resolution | 4 digits with decimal, autoranging; 0.001 ppb in lowest range |
| Sample Flow rate | 50 – 250 mL / min |
| Sample Pressure | 0.3 – 7 bar (5 – 100 psig) |
| Sample Termperature | 5 – 60 °C (41 – 140 °F) |
| Silica Measurement Accuracy | ± 5 % of reading or ± 1 ppb, whichever is greater |
| Span calibration | Automatic per schedule; once per month, typical |
| Weight | 16 kg (35 lbs) |
| Zero calibration | Automatic, every measurement cycle |
| Material Number(s) | 30571937 |
Small Footprint, More Functionality
The 2850Si 1/PNL silica analyzer delivers early trace-level silica detection in a compact panel design for maximum installation flexibility. The advanced intelligent diagnostics system ensures peak performance with minimal operator supervision.
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 1/PNL 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 1/PNL Analyzer comes with 10+ different internal diagnostics and flexible communication options to leverage key outputs as part of our verified water chemistry technology that enables smart alarms.
Documentation
