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Section 1: Description and Specifications
1.1 Features and Applications
COMPLETE SYSTEM includes single or dual input analyzer, sensor(s), and debubbler assembly
CHOOSE U.S. EPA METHOD 180.1 or ISO METHOD 7027 compliant sensors
RANGE 0-200 NTU
RESOLUTION 0.001 NTU
FULL FEATURED ANALYZER with fully scalable analog outputs and fully programmable alarms
with interval timers
INTUITIVE, USER-FRIENDLY MENU in seven languages makes setup and calibration easy
The Clarity II turbidimeter is intended for the determination of turbidity in water. Low stray
light, high stability, efficient bubble rejection, and a display resolution of 0.001 NTU make
Clarity II ideal for monitoring the turbidity of filtered drinking water. The Clarity II turbidimeter
can be used in applications other than drinking water treatment. Examples are monitoring
wastewater discharges, condensate returns, and clarifiers.
Both USEPA 180.1 and ISO 7027-compliant sensors are available. USEPA 180.1 sensors use a
visible light source. ISO 7027 sensors use a near infrared LED. For regulatory monitoring in the
United States, USEPA 180.1 sensors must be used. Regulatory agencies in other countries may
have different requirements.
The Clarity II turbidimeter consists of an analyzer, which accepts either one or two sensors, the
sensors themselves, and a debubbler/measuring chamber and cable for each sensor. The cable
plugs into the sensor and the analyzer, making setup fast and easy. Sensors can be located as
far as 50 ft (15.2 m) away from the analyzer.
The Clarity II turbidimeter incorporates the popular and easy to use 56 analyzer. Menu flows
and prompts are so intuitive that a manual is practically not needed. Analog outputs are fully
scalable. Alarms are fully programmable for high/low logic and dead band. To simplify
programming, the analyzer automatically detects whether an EPA 180.1 or ISO 7027 sensor is
being used.
Clarity II is available in an optional configuration in which the analyzer, sensor(s), and debub-
bling flow cell(s) are mounted on a single back plate. The sensor cables are pre-wired to the
analyzer, so setup is exceptionally fast and easy. All the user does is mount the unit on a wall,
bring in power and sample, and provide a drain. To order this option, consult the factory.
Description and Specifications 1
Instruction Manual Clarity II T56
PN-51-T56 May 2012