Commissioning, Measuring, Calibration - Xylem YSI IoLine Serie Instrucciones De Operación

Commissioning, measuring, calibration

Commissioning
6
Commissioning, measuring, calibration
The combination electrodes except the Micro are delivered with an
irrigation cap. The irrigation cap can also be used as storage equipment
between measurements. Due to its small pipe diameter, the micro
model is stored in a screw-top glass pipe. The electrodes are filled with
reference electrolyte solution in the factory. Prepare the combination
electrode for measuring as follows:
• The closure of the refilling opening consists of a slide. Open the refilling
opening for the reference electrolyte solution.
The refilling opening must always be open during calibration and
measurement!
Refilling
opening
• The bridge electrolyte (3 mol/1 KCI) that fills the item during delivery can be
replaced as needed with an electrolyte solution that matches the sample. For
a stabile measurement, the conductivity of the individual bridge electrolyte
should be at least 10 mS/cm.
• The colored, iodine electrolyte solutions of the IoLine electrodes are inside a
closed system and must therefore not be refilled. You must make sure that
the bridge electrolyte is free of silver ions.
Note
The bridge electrolyte must be free of silver ions.
• Connect the combination electrode to the meter
• Calibrate the combination electrode according to the operating manual of the
meter. When doing so, observe the general rules on the following page.
• Make sure the refilling opening for the reference electrolyte solution is open.
• Avoid the displacement of any solution (sample or buffer solution) from one
measurement to the next by taking the following measures:
- Shortly rinse the calibration and sample beakers with the solution the
beakers are to be filled with next.
- Between measurements, rinse the combination electrode with the solution
that follows. Alternatively, you can also rinse the combination electrode with
deionized water and then carefully dab it dry.
IoLine
T 814245
04/2014