Analyzer 2850Si Silica 1/Enc/PO4 - Overview - METTLER TOLEDO

Analyzer 2850Si Silica 1/Enc/PO4

Innovative Silica and Phosphate Analysis.The 2850Si 1/ENC/PO4 Silica Analyzer offers a unique combination of silica and phosphate monitoring within a compact design for power plant water chemistry. Achieve superior performance at lower cost with built-in intelligent diagnostics.

Save Space, Increase Productivity

Optimize valuable panel space by implementing or upgrading to meet silica and phosphate monitoring needs, leaving room to install other analytics.

Achieve Low Total Cost of Ownership

Get reliable silica and phosphate analysis using 75% less reagent than other analyzers. Monitored reagent usage reduces unnecessary downtime.

Ensure Optimal System Performance

Simplify maintenance for dependable operation with intelligent diagnostics, while accurate alarm verification boosts control room confidence.

Material No.: 30571934

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Specifications - Analyzer 2850Si Silica 1/Enc/PO4
Silica measurement range
0-5000 ppb, limit of detection per ASTM Method D7126
Phosphate measurement range
0.3 - 10 ppm
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
TFT color touchscreen
Simultaneous display of silica and/or phosphate concentration and measurement or auto-cal status
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
on power loss all settings are retained without batteries
100 – 240 VAC, 50 – 60 Hz, 100 W
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/Phosphate
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
Phosphate Measurement Accuracy
± 10 % of reading or ± 0.3 ppm, whichever is greater
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 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
Built-in sequencer
No
Ambient Operating Temperature
10 – 50 °C (50 – 122 °F)
Ratings/Approvals
CE, cULus
Span calibration
once per month, typical
Automatic per schedule

Small Footprint, Greater Functionality

The 2850Si 1/ENC/PO4 Silica Analyzer delivers early, trace-level silica detection in a compact and robust design for maximum operational flexibility. Integrated phosphate monitoring saves valuable panel space and delivers more with a single analyzer.

Reliable and Efficient Water Analysis

Using 1/4 of the reagents, a single 2850Si Silica Analyzer does twice the monitoring with sub-ppb silica and ppm phosphate analysis for power plant chemistry, reducing overall reagent consumption and operating costs.

Eliminate Complexity with Intuitive UI

The 2850Si 1/ENC/PO4 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/ENC/PO4 Analyzer comes with 10+ different internal diagnostics and flexible communication options to leverage key outputs (including phosphate levels) as part of our verified water chemistry technology that enables smart alarms.

Documentation

White Paper

Phosphate Measurement White Paper
This white paper describes how control of silica and phosphate at power plants require different strategies. With reliable, actionable insights from o...

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Analyzer 2850Si Silica 1/Enc/PO4
FDA
USP Class VI