Hach-Lange SENSION+ 50 49 User Manual - Manual (Page 17)

Error/Warning Description Solution
E6 The calibration solutions
have different
temperatures. Make sure that the calibration solutions have the same
temperature.
ErA Salinity is set to automatic
and measured value >
50 g/L. Change the TC value from automatic to the correct value. Refer to
meter manual.
Troubleshooting notes
For the best performance, make sure to:
• Prepare the probe(s) for use before calibration or measurement.
• Obey the calibration and measurement notes.
• Obey the calibration and measurement procedures.
Troubleshooting notes:
• Magnetic stirrers may supply sufficient heat to change solution temperature. Put a piece of
insulating material between the stirrer and beaker.
• Protect the sensing element from direct light during measurement.
• Set the meter to off. Disconnect and then connect the probe again.
• Connect a different probe to identify if the problem is with the probe or the meter.
Refer to Troubleshooting on page 13 for calibration and measurement warnings and errors.
Examine the probes
Note: The lower the sample temperature or the larger the temperature difference between the samples, the longer
the stabilization time will be.
1. Examine the platinized layer of the conductivity probe. Replace the probe if the platinized layer
has been damaged and/or removed.
2. Clean the probes. Replace the DO probe membrane module if necessary.
3. If the DO probe fill solution is contaminated, drain and replace with fresh filling solution.
4. Rinse the pH probe reference junction diaphragm with deionized water. Then, shake the probe
downwards (like a thermometer) to remove any air bubbles in the bulb.
Replacement parts and accessories
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to
the company website for contact information.
Replacement parts
Description Item no.
pH electrode for 50 49 multisensor LZW9171.99
Conductivity cell for 50 49 multisensor LZW9172.99
DO sensor for 50 49 multisensor LZW9173.99
Handle for 50 49 multisensor LZW9179.99
English 15