The Residual Chlorine Analyzer utilizes the
most accurate test method to determine chlorine residual levels
in process waters, similar to that used in lab environments 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 or
SCADA systems. The alarm outputs can alert plant operators to
an out-of-range chlorine residual, or trigger an auto dialer
in remote or off-hour situations.
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 signals. Electronic isolation eliminates problems from
"ground-loops" and ensures operator safety.
The Residual
Chlorine 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.
Residual Chlorine Analyzer
Features:
- True Imperilment test method
- Measures free or total chlorine
residuals
- Applications include fresh
water, wastewater, and food processing
- Simple to calibrate and operate
- Low maintenance design
- Uses inexpensive, nontoxic,
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
50 PPM without dilution
Residual Chlorine Analyzer Advantages:
- True Imperilment test method
- Constantly measures free or
total chlorine residuals
- Simple to calibrate and operate
- Low maintenance design
- 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
60 PPM without dilution
Residual Chlorine Analyzer Specifications:
| Type
of Measurement: |
Imperilment,
free or total chlorine |
| Readout:
|
Digital, red
LED |
| Instrument
Ranges: |
Field adjustable
from 0-0.1 to 0-50 PPM (mg/l), factory set for 0-5 PP |
| Resolution:
|
.001 PPM (mg/l)
for ranges to 0.5 PPM, or 0.01 PPM (mg/l) for ranges above
0.5 PPM |
| Sensitivity:
|
0.001 PPM (mg/l)
|
| Accuracy:
|
+/- 0.25 % of
full scale |
| Repeatability:
|
0.004 PPM (mg/l)
or 1 % of full scale, whichever is greater |
| Stability:
|
+/- 1 % of full
scale per month |
| Speed
of Response: |
4 seconds from
sample entry to display and signal response |
| Full
Scale Response: |
1.5 to 2 minutes
|
| Sample
Temperature: |
34ºF to
120ºF. (2ºC to 60ºC.) |
| Sample
Flow Requirements: |
250 ml/min.
minimum (includes overflow)
(sample pump required for non-pressurized applications |
| Sample
Cell Use: |
120 ml/min.,
fixed |
| Sample
pH: |
3.0 to 10.0
|
| Sample
Alkalinity: |
0.05 to 300
PPM (total)
(Combined high pH and high total alkalinity may require
pickling vinegar for pH buffering.) |
| Sample
Turbidity: |
Less than 250
NTU |
| Buffer
Requirements: |
5 % Food-Grade
Distilled White Vinegar (add Potassium Iodide for total
chlorine residual readings) |
| Buffer
Use: |
4.5 days with
# 14 peristaltic pump tubing, included
13 days with # 13 peristaltic pump tubing, optional
(only for use in fresh water applications, with low pH and
alkalinity) |
|
