One Button Operation. One button starts, cali-brates, and puts the analyzer on-line.

Multiple Sample Option. Measure as many as sixsample streams sequentially.

Routine Maintenance takes five minutes everythree months.

Self-Diagnostics. The analyzer monitors criticalfunctions and alerts the user when a problemexists.

Pre-Packages Reagents and Standards. No messychemical solutions to prepare and standardize.Reagents and standards come from the factoryready-to-use.

ApplicationsThe Model CFA3030 Silica analyzer is intended for the determi-nation of silica in boiler water, boiler feedwater, demineralizedwater, and steam condensate.

Features and BenefitsSimplicity, ease-of-use, and reliable operation characterize theModel CFA3030 Valve-Pump silica analyzer. Place color-codedreagent straws in color-coded reagent bottles, place the blankand standard straws in the appropriate bottles, and press a button.The analyzer automatically calibrates and puts itself in service.Once in service, the analyzer runs a blank and full scale standardtwice a week. An innovative procedure allows the analyzer toreadily distinguish between silica in the reagents and silica in theblanking water, ensuring accurate reagent blanks for low leveldeterminations.

Routine maintenance is simple. Replace reagents and standardsevery three months. Replace the valve pump, the key to the reliable

performance and low maintenance of the Model CFA3030, everytwo years. Total maintenance time is at most one hour per year.

Using an optional built-in stream selector, the Model CFA3030can measure as many as six sample streams sequentially. A singleanalog output is standard. A stream identification marker indi-cates the start of each new sample. A multiple output option inwhich a separate analog output is assigned to each samplestream is also available. With the multiple output option eachoutput holds the last value until updated.

The Model CFA3030 Silica Analyzer has a pumped reagent deliverysystem. Instrument air, needed for pressurized systems, is unnec-essary. The Model 3030 uses a stable, pre-mixed reducing agent.There is no need to mix powders and liquids before putting thereagent in service.

The Model CFA3030 uses a batch measurement technique. Theupdate rate is every 12 to 20 minutes. Samples containing highlevels of silica (for example, boiler water) require longer flushingperiods.

Analyzer shown withfront covers removed

Model CFA3030 Product Data SheetPDS 71-Silica3030/rev.C September 2011

On-Line Silica Analyzer

Model CFA3030 September 2011

SpecificationsRanges: 0-50 ppb, 0-100 ppb, 0-200 ppb, 0-250 ppb, 0-300 ppb,

0-500 ppb, 0-1.0 ppm, 0-2.0 ppm, 0-2.5 ppm, 0-5.0 ppm, 0-10 ppm, 0-20 ppm, 0-30 ppm, 0-50 ppm, and 0-100 ppm

Method: Silica is determined colorimetrically as silicomolybdousacid (heteropoly blue method) or as silicomolybdic acid;analytical wavelength and cell path length depend on meas-urement range. The analyzer measures molybdate-reactivesilica only.

Sampling Method: Batch; update rate is every 12-20 minutes(depends on application). Typical is 15 minutes.

Precision: ±1% of full scale

Detection limit: ±1% of full scale

Calibration standards: zero and full-scale standard for eachmeasurement range.

Automatic calibration: Blank and full scale: every 72 hours, requires about 40 min.

Reagent consumption: 5 L of each reagent every 3 months

Standard consumption: 5 L of standard and 5 L of baseline solutionevery 3 months

Sample requirements:Flow: 10-15 mL/min (minimum)

Pressure: <10 psig (<170 kPa) (overflow cup must drain toatmosphere)

Temperature: 0-50°C (32-122°F)

Filter: 8 micron filter in sample inlet line is recommended.

Multiple sample option:

Up to six sample streams, measured sequentially.

Single output (standard): Output corresponds to samplecurrently being measured. A stream identification markeron a chart recorder indicates the start of each new sample.

Multiple output (optional): Each sample has its own output.The output holds last value when the analyzer changes tothe next sample stream.

Outputs:

4-20 mA or 0-5 Vdc (non-isolated). Isolated output is optional.

Load requirements for 4-20 mA output: 450 Ω (minimum),1200 Ω (maximum).

Load requirement for 0-5 Vdc output: 10k Ω (minimum).

Outputs are not scalable. The range of the outputs is thesame as the measurement range.

Parallel output for printer. Standard on multi-stream instru-ment. Optional on single stream instrument.

RS232C output is standard on multi-stream instrument,optional on single stream instrument.

Alarms:

General: process alarms for streams 1 through 6, leak detec-tion, LED failure, and calibration in progress.

Stream 1: separate high and low alarm relays; contacts arerated 2 A at 250 Vac or 3 A at 30 Vdc; delay on/off time is 1 min.

Streams 2 through 6 (multiple output option): one alarmrelay for each stream; alarm can be configured as high orlow; contacts have dc ratings only: 100 Vdc (maximum), 10VA (maximum), 1.0 amp (maximum - carry only), 0.5 amp(maximum - switched); delay on/off time is 1 min.

Display: Single line LCD; 4 1/2 digits; readout in concentrationunits. For multi-stream option, display remains at last value

Principles of OperationThe heart of the CFA3030 Silica analyzer is the valve pump. Thevalve pump has separate pumping elements for sample,reagents, and standards. Each pump element consists of achemically inert flexible membrane in a cavity. Cavity volumesare 5 mL for sample and standards and 0.2 mL for reagents. Avacuum/pressure pump pushes and pulls on the membrane.Vacuum causes the chamber to fill. Pressure pushes the liquidout of the cavity into the reaction chamber. Check valves pre-vent backflow. A stream of air pumped into the reaction cham-ber mixes the sample and reagents. After the reaction time haspassed, the treated sample is pumped to the measurement cell.Light from an LED at 820 nm, 660 nm, or 460 nm (the wave-length depends on the range of silica being measured) passesthrough the sample and a photodiode measures the light inten-sity. The analyzer automatically calculates the absorbance andtranslates the results into a silica concentration reading. Oncethe measurement is complete, repeated flushes with fresh sam-ple remove the treated sample from the measurement andreaction cells.

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September 2011 Model CFA3030

until new stream reading is stable.

Status LEDs: for leak, source LED failure, hours remaining beforemaintenance, and calibration in progress; for multi-stream ana-lyzers, status LEDs show the sample stream currently valved inand the sample stream for which data is being displayed.

Environmental: Install in a clean, indoor environment. Ambienttemperature: 10-45°C (50-113°F). Avoid temperatureswings greater than ±5°C (10°F) over a twelve-hour period.Humidity: 5-95% (non-condensing). Not for outdoor use.

Dimensions:

Height of analyzer cabinet: 25.75 in. (654 mm)

Height of reagent cabinet: 18.25 in. (464 mm)

Width: 18 in. (457 mm) includes hinges

Depth: 16 in. (406 mm) includes rear mounting bracket

Space Requirements:

Wall mounting: Allow 18 in. (457 mm) on one side for swing

out access to rear panel. Allow 12 in. (305 mm) on the otherside for access to input/output panel and overflow sampler.

Panel mounting: Allow 12 in. (305 mm) on both sides foraccess to input/output panel and overflow sampler.

Weight: 117 lb (53 kg). Add up to 60 lb (27 kg) for full weight ofreagents and standards.

Shipping Weight of Analyzer: 147 lb (67 kg)

Shipping Weight of Reagents: 64 lb (29 kg) for threemonths supply

Power:

Standard: 115 Vac (±10%), 60 Hz, 3 Amp

Optional: 230 Vac (±10%), 50 Hz, 1.5 Amp

Approval:

IEC 61326

Ordering InformationModel CFA3030 is a batch analyzer suitable for the determination of silica in the range 0-50 ppb, 0-100 ppb, 0-200 ppb, 0-250 ppb,0-300 ppb, 0-500 ppb, 0-1.0 ppm, 0-2.0 ppm, 0-2.5 ppm, 0-5.0 ppm, 0-10 ppm, 0-20 ppm, 0-30 ppm, 0-50 ppm, and 0-100 ppm.Range must be specified at time of ordering. A single, non-isolated output is standard. Isolated outputs and multiple outputs (oneoutput for each sample stream) are available as options and must be specified at time of ordering. 115 Vac, 60 Hz is standard; 230Vac, 50 Hz must be specified at time of ordering. The analyzer is shipped with a three-month supply of reagents and standards.

Model 185 On-Line AnalyzerCODE Measurement ( required selection)

185-A001 On-line analyzer for silica

CODE Number of Sample Streams (required selection)01C One stream02C Two streams03C Three streams04C Four streams05C Five streams06C Six streams

CODE Output isolation-- No isolationN1 Isolated outputs

CODE Outputs-- Single outputN2 Multiple outputs equal to number of sample streams

CODE RS232C interface-- No RS232C interfaceN3 RS232C interface for remote communications

CODE Power

-- 115 VAC 60 Hz

N4 230 VAC 50 Hz

185-A001 -01C -N1 -N4 Example

Parts and Accessories

NOTE: A biannual reagent and valve pump service contract is available and is recommended. To order the reagent and pump servicecontract, provide a blanket purchase order for eight reagent and standard kits (two-year supply). The kits will be sent in regularintervals over the 24-month period. Once during the 24-month period you will be entitled to a valve pump refurbishment.Contact Rosemount Analytical for details concerning the valve pump refurbishment.

© 2011 Emerson Process Management. All rights reserved.

The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount Analyticalisa mark of one of the Emerson Process Management family of companies. All other marks arethe property of their respective owners.

The contents of this publication are presented for information purposes only, and while efforthas been made to ensure their accuracy, they are not to be construed as warranties or guaran-tees, express or implied, regarding the products or services described herein or their use orapplicability. All sales are governed by our terms and conditions, which are available on request.We reserve the right to modify or improve the designs or specifications of our products at anytime without notice.

Emerson Process ManagementRosemount Analytical2400 Barranca ParkwayIrvine, CA 92606 USAT 949 757 8500F 949 474 7250http://www.raihome.com

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Part Number Description185-3030-68 CFA-3030 silica reagents and standards, 3 months, 0-50 ppb185-3030-30 CFA-3030 silica reagents and standards, 3 months, 0-100 ppb185-3030-48 CFA-3030 silica reagents and standards, 3 months, 0-200 ppb185-3030-63 CFA-3030 silica reagents and standards, 3 months, 0-250 ppb185-3030-70 CFA-3030 silica reagents and standards, 3 months, 0-300 ppb185-3030-64 CFA-3030 silica reagents and standards, 3 months, 0-500 ppb185-3030-65 CFA-3030 silica reagents and standards, 3 months, 0-1 ppm185-3030-67 CFA-3030 silica reagents and standards, 3 months, 0-2 ppm185-3030-84 CFA-3030 silica reagents and standards, 3 months, 0-2.5 ppm185-3030-66 CFA-3030 silica reagents and standards, 3 months, 0-5 ppm185-3030-90 CFA-3030 silica reagents and standards, 3 months, 0-10 ppm185-3030-52 CFA-3030 silica reagents and standards, 3 months, 0-20 ppm185-3030-54 CFA-3030 silica reagents and standards, 3 months, 0-30 ppm185-3030-80 CFA-3030 silica reagents and standards, 3 months, 0-50 ppm185-3030-88 CFA-3030 silica reagents and standards, 3 months, 0-100 ppm180-1341-08 Disposable cartridge filter (for overflow assembly)