Chlorine Analyzer Maintenance; Do A Leak Check; Change The Reagents (If Applicable); Clean The Sample Cell And Sample Block - Hach LANGE WDMP sc Manual Del Usuario

Chlorine analyzer maintenance

Do a leak check

Refer to the maintenance section of the supplied chlorine analyzer user
manual.

Change the reagents (if applicable)

Note: The CL17 chlorine analyzer uses reagents but the CL10 chlorine analyzer
does not.
Refer to the reagent installation section of the supplied chlorine analyzer
user manual.

Clean the sample cell and sample block

Refer to the cleaning instructions in the maintenance section of the
supplied chlorine analyzer user manual.

Do a verification

Use a separate laboratory photometer to test for chlorine in the sample.
Compare the results to chlorine analyzer results.

Change the pump tubing

Refer to the maintenance kit instructions supplied with the chlorine
analyzer maintenance kit.
Change the instrument tubing
Refer to the maintenance kit instructions supplied with the chlorine
analyzer maintenance kit.

Probe maintenance

Do a verification
For both pH and conductivity, use known standards to do a verification
test. Refer to the probe user manuals for more information.
Clean the probes
Refer to the maintenance section of the probe user manuals for cleaning
instructions.
Calibrate the probes
Refer to the calibration section of the probe user manuals for calibration
instructions.
16 English
Troubleshooting
When measurement variation occurs, use alternate methods to make
sure that sensor performance is accurate. Refer to
Table 4 Sensor validation
Sensor Method
1720E USEPA method
180.1
CL17 USEPA approved
DPD methods
CL10 USEPA compliant
according to
method 334.0
pH sensor Portable pH meter
and electrode
Conductivity Conductivity
sensor standard
Table 4.
Solution
Use a portable turbidimeter that
complies with method 180.1 to validate
the 1720E.
Collect a grab sample at the
CL17 sample point. Use a handheld
colorimeter to analyze the grab sample
near the CL17 unit.
Use a grab sample at the CL10 sample
point. Use a photometer to analyze the
sample.
Use a portable pH meter to test the
sample and compare with the panel
sensor. Calibrate the panel sensor if
necessary.
Put the panel conductivity sensor into a
conductivity standard to test the
measurement. Calibrate the panel
conductivity sensor if necessary.