HF Scientific CLX Specifications
Online Chlorine Monitoring
ES-HF-CLX
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Engineer
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Reliable Chlorine Monitoring
Specifications
HF scientific developed the CLX OnLine Residual Chlorine
Monitor specifically for drinking water, wastewater, industrial and
marine residual chlorine monitoring applications.
The CLX OnLine Residual Chlorine Monitor is manufactured
using microprocessor based technology making it the most
reliable and cost efficient instrument for monitoring
residual chlorine.
Colorimetric DPD chemistry technology provides a proven,
stable and reliable reading along with the most economical
method available.
Features
• Colorimetric DPD Chemistry
Proven reliable and economical, colorimetric DPD
(N,N-diethyl-p-phenylenediamine) chemistry is the most accurate
method for measuring free or total residual chlorine.
• Rugged Enclosure
The CLX's small footprint and corrosion resistant NEMA
4X (IP66) enclosure allows for a simple installation that will
fit in almost any space.
• Optical Design
New optical design uses similar optics to the hand held portable
Chlorine Photometer. The new design increases accuracy and
allows for comparable and precise readings between the OnLine
Monitor and hand held portable instruments.
• Removeable Sample Cuvette
A removeable sample cuvette allows for simple cleaning and
maintenance. Viewable sample chamber allows a clear view of
the sample cuvette while the instrument is sampling.
• Cycle Times
User selectable cycle times allow the user to set the cycle time
from 110 seconds up to 10 minutes (optional 60 seconds to
10 minutes). Low volume reagent and sample chamber allow for
affordable reagent costs and decreases water consumption.
• Certification
Listed or Certified to CE, UL, CSA (ETL,ETLc)
Changing the
Sample Cuvette
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HF scientific product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise
measurements, please contact HF scientific Technical Service. HF scientific reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on HF
scientific products previously or subsequently sold.
Sample Specifications
The Residual Chlorine Monitor shall be able to measure free or
total chlorine using the DPD colorimetric method. The Chlorine
Monitor shall have a measurement range of 0-10 mg/l. The
Chlorine Monitor shall include the power supply, sensor and
display in one NEMA 4X (IP66) corrosion resistant enclosure. The
Chlorine Monitor shall have readings consistent with laboratory
and portable Chlorine Photometers. The Chlorine Monitor shall
have standard 4-20 mA outputs and RS-485 with Modbus
Protocol. The 4-20 mA output shall be standard or reversible.
The Chlorine Analyzer shall have a removable sample cuvette.
The sensor shall have a clear view to the optical chamber
allowing viewing of the sample and reaction of the reagents,
before, during and after a reading. Accuracy shall be ±5%
with a resolution of 0.01 mg/l for the range of 0-6 mg/l and
±10% with a resolution of 0.01 mg/l for the range of 6-10 mg/l.
The Chlorine Monitor shall have a user selectable cycle time
between 110 seconds and 10 minutes (optional 60 seconds to
10 minutes). The Chlorine Monitor shall be capable of 30 days
of unattended operation. The Chlorine Monitor shall take a zero
reading before each reading to compensate for color in the
sample. The Chlorine Monitor shall have microprocessor based
technology. The Monitor shall have two user selectable alarm
relays.
Range: 0 - 10 mg/l.
Cycle Time: User Selectable: 110 seconds to
10 minutes. (optional 60 seconds to
10 minutes)
Resolution: 0.01 mg/l
Accuracy: 0 - 6 mg/l - ±5% or 0.03 mg/l of Cl
whichever is greater.
6 - 10 mg/l - ±10%
Method: USEPA accepted DPD method of
analysis for measuring Free or
Total Residual Chlorine
Standard Outputs: 4-20 mA and RS-485 with Modbus.
User Alarms: 2 User Selectable Alarms for Sample
Concentration (Form C 240VAC 2A)
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Input Pressure: 5 - 150psi
Enclosure: ABS Plastic, NEMA 4X, IP66
Power: 100 - 240 Volt Auto Switchable
47-63hz
Certifications: CE, UL, CSA, (ETL, ETLc)
Shipping Dimensions: 16" x 16" x 10"
(41cm x 41cm x 26cm)
Shipping Weight 8lbs (3.6kg)
2
Changing the Reagents
Ordering Information
Catalog No. Description
20040 CLX OnLine Residual Chlorine
Monitor for Free or Total Chlorine
Complete with operating manual. Re-
agents must be purchased separately.
If the application combines high humidity
with cold sample water, purchase a
#09944 desiccant cartridge separately.
Accessories
09950 Replacement tubing/cuvette kit
25018S Flow through cuvette CLX
28316 Low pressure adapter
Catalog No.
J.A.W.* Liquid
Free Chlorine 30 day supply 09951 09947
Total Chlorine 30 day supply 09952 09948
*Just Add Water
** User must add Sulfuric Acid, Soduim Hydroxide and supplied DPD
reagent before use
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