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MODEL TCL SECTION 1
DESCRIPTION AND SPECIFICATIONS
1
SECTION 1.
DESCRIPTION AND SPECIFICATIONS
• MEMBRANE-COVERED AMPEROMETRIC SENSOR.
• NO TOOLS REQUIRED to change membrane.
• MAINTENANCE TAKES ONLY A FEW MINUTES a month.
• VARIOPOL CONNECTOR OPTION allows the sensor to be replaced without removing and
rewiring cable.
Model 1056 Chlorine Analyzer
Model TCL Sample Conditioning System
Model 499A CL-02 Sensor
• LARGE, PROGRAMMABLE, BACK-LIT DISPLAY with easy to use interface.
• TWO INDEPENDENT ANALOG OUTPUTS.
• FOUR FULLY PROGRAMMABLE RELAYS optional.
• DIGITAL COMMUNICATIONS (HART OR PROFIBUS DP) optional.
• NO METAL WETTED PARTS. Ideal for seawater.
• LOW SAMPLE FLOW (about 15 mL/minute) means little waste.
• REAGENT-BASED SYSTEM measures true total chlorine.
• FIVE GALLONS OF REAGENT lasts two months.
1.1 FEATURES
MODEL TCL SAMPLE CONDITIONING SYSTEM
The sample conditioning system permits a single sen-
sor to measure total chlorine in water. The sample con-
ditioning system continuously injects a solution of acetic
acid (vinegar) and potassium iodide into the sample.
The acid lowers the pH to between 3.5 and 4.5 and
allows total chlorine in the sample to quantitatively react
with the potassium iodide to produce iodine. The sensor
measures the iodine concentration, and the analyzer
displays the total oxidant concentration in ppm as Cl
2
.
MODEL 1056 CHLORINE ANALYZER
The Model 1056-24 chlorine analyzer is designed for
the continuous determination of chlorine in water. It is
used with the Model 499ACL-02 sensor and TCL sam-
ple conditioning system.
The Model 1056 analyzer is housed in a weatherproof,
corrosion-resistant, NEMA 4X enclosure. It is suitable
for wall, panel, or pipe mounting. Operation of the ana-
lyzer is through a membrane keypad. A back-lit, six
line display shows the total chlorine reading and tem-
perature in 0.6 inch (15 mm) high characters. The dis-
play can be customized to show other information, for
example, output signal and diagnostics.
Menu screens for calibrating and programming are
simple an intuitive. Plain language prompts in six lan-
guages guide the user through procedures.
Information and diagnostic screens as well as basic
trouble-shooting guidelines are available at the touch
of a button.
The Model 1056 has two isolated, continuously vari-
able 4-20 mA outputs. Outputs can be assigned to
total chlorine concentration or to temperature. Digital
communications, HART or Profibus DP, are available
as options.
Four fully programmable alarm relays are available as
an option. Relays can be assigned to total chlorine
concentration or temperature. A relay can also be