User manual

6 SDL150-EU-EN-V2.1-11/11
Probe Maintenance
First time use
Before first use, ensure that the probe is filled with the supplied electrolyte solution (refer to the
electrolyte filling instructions later in this guide)
Subsequent uses
1. Ensure proper electrolyte level in probe
2. Calibrate the probe with the meter before each use
3. Replace the probe head and diaphragm if the diaphragm appears soiled (re-calibrate after
replacing diaphragm)
Diaphragm considerations
The main oxygen probe component is the thin Teflon diaphragm housed in the tip of the supplied
probe. The diaphragm is made permeable by the oxygen molecules but not by the considerably
larger molecules contained in the electrolyte. Due to this characteristic, the oxygen may diffuse
throughout the electrolyte solution contained in the probe and its concentration is quantified by the
meter’s measurement circuitry.
Refilling the Probe’s Electrolyte
Refer to the illustrated instructions below.
1. Unscrew the probe head
2. Pour out the old electrolyte from the probe head container
3. Fill the probe head container with the fresh electrolyte
4. Replace the probe head onto the probe body
5. When not in use the probe head should be kept in the protective cover