Amperometric Chlorine Residual Analyzer, 110Vac 60 Hz
0-5 Ppm Standard Range, With Second Ki Buffer Pump
Total Chlorine, 3-Digit Display
measures total chlorine with the second buffer solution feed pump. It
offers several advantages:
be reduced by pumping the solution and the vinegar from larger containers. The buffer
feed rate using the standard #14 size buffer feed tubing is 4.3 days per gallon.
Pumping from a 5-gallon container allows the analyzer to run unattended for over
20 days. A customer using the smaller diameter #13 tubing can extend the
solution changeover from every 13 days for one gallon to 65 days for 5
effectiveness of potassium iodide (KI) that is needed to measure total
chlorine. KI added to the vinegar pH buffer degrades and will
remain effective up to 7 days. By mixing the KI with distilled water
and feeding it separately from the acidic pH buffer, it can remain effective
for months with no degradation (other than that caused by heat and light
reliable chlorine residual meaurements due to a more stable KI solution.
KI with distilled water allows high range chlorine residual
measurements of 20 ppm and higher. The higher concentration of KI needed to
measure high chlorine residuals degrades faster than lower concentrations.
True amperometric test method
• Measures free or total chlorine residuals
• Applications include fresh water, wastewater, and food processing
• Simple to calibrate and operate
• Uses inexpensive, non-toxic, food-grade vinegar for pH buffering
• Continuous, isolated, 4-20 milliamp output signal, suitable for
control or monitoring applications
• Built-in high and low alarm relays
• Field-adjustable range
• High range capabilities to 100 ppm without dilution
The Foxcroft FX-1000p
Chlorine Residual Analyzer utilizes the most accurate test method to
determine chlorine residual levels in process waters, similar to that used
in lab environment titrator test methods. This makes it an excellent
choice for chlorine control or monitoring applications. Residual readings
are instantaneous and do not rely on "sample and hold" methods.
This minimizes any delay in readings for control applications. The
continuous 4-20 milliamp output signal can be used to drive chlorine
residual control systems and/or chart recorders, data loggers or SCADA
systems. The alarm outputs can alert plant operators to an out-of-range
chlorine residual, or trigger an autodialer in remote or off-hour
The measuring cell design
incorporates several features to ensure accurate readings, such as;
high-grade gold and copper electrodes, fixed sample and buffer feed rates,
and continuous cell mixing and cleaning. Solid-state analog electronics
provide stable, drift-free, residual readings and output signal.
Electronic isolation eliminates problems from "gound-loop" and
ensures operator safety.
The analyzer is designed to
be relatively maintenance-free, other than adding vinegar when it runs
out. The use of vinegar as a pH buffer is simple, effective, economical,
and environmentally friendly. Converting the analyzer to read total
chlorine, is as simple as adding Potassium Iodide to the vinegar buffer.
Isolated Output, 600 ohms
and Low Alarms
PPM or Mg/L
Calibration Range (see chart
Feed Rate #14 tubing - (4.5
days buffer supply use) Tubing
installed, #13 Tubing - (12.5 days
buffer supply use) Buffer bottle wall bracket included.
Tubing 1/4” ID x 3/8” OD
flexible PVC tubing. 3 feet
Tubing 2 - 5/8” ID x 3/4”
OD flexible PVC tubing Each
piece 3 feet long.
VAC Power Standard
or Free Chlorine Residuals When
measuring total chlorine recommend using
option 9 or 10 on page 7 to Feed Potassium Iodide solution.