Na+9245datasheet

Features and Benefits

Automatic Electrode Reactivation for Optimum Operation and Response Time

To maintain optimum response time—even in systems of continuous low sodium concentration—the analyzer automatically reactivates the electrode using non-hazardous chemicals.

Easy to Install, Operate, Calibrate, and Maintain The 9245 Sodium Analyzer installs easily—it requires only power and sample connections. Clear step-by-step instructions are given by the analyzer to simplify operations such as instrument start-up, long-term stand-by, and reagent replenishment.

Low ppb sodium solutions for calibration can be difficult to prepare so the 9245 analyzer is equipped with a fully automated calibration system that uses 10 ppm samples and follows a multiple step calibration cycle to accurately calibrate the analyzer. Normal maintenance consists of replenishment of the calibration solution reagents and electrolyte—typically every 100 days—and annual replacement of the reagent tube.

Adaptable to a Variety of Conditions

The analyzer is fitted with a quick-loop valve, a constant head vessel, and minimum sample flow detection to allow for variations in sample pressure, flow, and distance from the analyzer to the “fresh-sample” point. Grab sample can be obtained for manual calibration, accuracy verification, and measurement of one-off process samples after which,

the unit returns automatically to on-line monitoring.

Lower Detection Limit of 0.01 ppb

With a detection limit of 0.01 ppb and a range of 0 to 10,000 ppb, the 9245 Sodium Analyzer is ideally suited for monitoring sodium in demineralized water, boiler feed, condensate, and all parts of the steam/water cycle.

4-20 mA Outputs and Digital

Communication Options

Four sets of isolated analog outputs can be configured

in 4-20 mA with three outputs assigned to sample concentration or temperature readings and the fourth reporting electrode live signal, including calibration and grab sample. Additional digital communication is available with JBUS/MODBUS or Profibus DP. Alarms and Diagnostics

Two programmable alarm relays may be assigned to concentration limits, delay, hysteresis, normal relay status, minimum sample flow rate detection, or operation of the measurement cycle for a channel. Two additional programmable relays may be used for warning messages (reagent level low, small calibration deviation, and system alarms (no reagents, no sample, no calibration, no power supply).

Comprehensive Data Analysis and Display Comprehensive information is available at a glance from the large display including: 24 hour sample trend curve, bar graph tracker of the current analysis, sample name, and alarms. A built-in data logger allows records measurement

values, calibration results, and alarm information.

Sodium DATA SHEET

9245 Sodium Analyzer

The 9245 Sodium Analyzer provides low-level sodium

measurement in high purity water applications.

Designed for use in the power generation industry,

it can also be applied in other industries

that require low-level sodium monitoring.

PW

IW

Specifications*

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*Specifications subject to change without notice.

Measuring Range

0 to 10,000 ppb, freely programmable 0 to 200 ppm with Cation-kit option

Accuracy

±0.1 ppb or ±5% of reading, whichever is greater

Cationic application:±2 ppb or 5% reading, whichever is greater

Repeatability

< 0.02 ppb or 1.5% reading, whichever is greater, within 10°C variation Detection Limit 0.01 ppb

Response Time

180 seconds (t = 90%)Ambient Temperature 5 to 50°C (41 to 122°F)

Calibration

Manual (1 or 2 points)

Automatic with known addition, 2 points Sample Conditioner

Di-isopropylamine (1 L/100 days)No. of Sample Streams 1

Insoluble Limits

< 10 ppm, no oil, no grease

(for boiler sample, install approx. 100 μm filter)Sample Temperature 5 to 45°C (41 to 113°F)Sample pH 6 to 10 pH

Cationic application:2 to 10 pH

Sample Pressure/Flow Rate 0.2 to 6 bar (3 to 87 psi)

5 L/h during sampling phase

Sample Line Connection

Simple fittings for 6 mm (1/4-in.) O.D. tubing or PE-low density Drain Connection

Barbed stem for 12 mm (1/2-in.) I.D. hose Power Supply

90 to 240 Vac, ±10%, 50/60Hz, 80 VA Compliance/Certifications UL, CSA, CE

Digital Display

75 x 75 mm graphic + LED backlighting

Options

Accessories:Cation-kit, automatic calibration, filtration system,wall enclosure

RS485:300 to 19200 baud, 32 stations max., JBUS/MODBUS Profibus DP:9.6 Kbit/s to 12 Mbit/s, 127 stations max. (with repeater)

Materials

Transmitter:IP65 (NEMA 4)

Panel:IP50 (Dust protection); ABS with SS frame Enclosure:IP54 (Splash water proof), ABS

Dimensions

Panel:850 x 450 x 252.5 mm (33.46 x 17.71 x 9.94 in.)

Enclosure:850 x 450 x 331.5 mm (33.5 x 17.74 x 13.05 in.) Panel Weight

Empty canisters:18 kg (40 lbs.)Full canisters:20 kg (44 lbs.)Enclosure Weight

Empty canisters:23 kg (51 lbs.)Full canisters:25 kg (55 lbs.)

Principle of Operation

The 9245 Sodium Analyzer uses ion selective electrode measurement after pH conditioning. Sample pH conditioning is essential for limiting interference of temperature or other ions on sodium measurement. Constant, temperature compensated buffering is assured using regulated reagent addition.

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Dimensions

Engineering Specifications

1. The sensor shall continuously measure the concentration of

sodium (Na +) in water.

2. The measurement technology shall be ion selective electrode

measurement.

3. The sample shall be continuously conditioned for pH and

buffered to compensate for temperature.

4. The measuring range shall be from 0 to 10,000 ppb Na +.

5. The minimum detection limit shall be 0.01 ppb Na +.

6. The accuracy shall be less than 5% or ±0.1 ppb of the

measured value, whichever is greater.

7. The response time shall be approximately 180 seconds.8. The flow rate of sample shall be 5 L/hour.

9. The transmitter enclosure shall be rated at NEMA4x/IP66.10. The analyzer shall be model Hach Ulltra 9245 Sodium

Analyzer.

Panel Mount

Enclosure Mount