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pinpoint salinity calibration

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ξερει κανεις πως καλημπρουμε το pinpoint salinity meter...;

προσπαθησα σε νερο απο Ρ.Ο. δηλαδη 0.00, αλλα το salinity meter δειχνει 1.1 και δεν παει παρα κατω...

τι να κανω;

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Calibration Procedure

Note: The meter should be calibrated immediately before use. The calibration should be checked occasionally to verify your readings. The precise measurement of Salt by electronic conductive means has long been considered to be the most accurate method, especially when compared to Specific Gravity / Density (hydrometers) and refractometers.

Marine environments should use the calibration fluid labeled 53.0mS. Empty the 53.0mS into a small, clean cup and swirl the probe in the fluid making sure that no air bubbles have accumulated under the probe. Wait 1–2 minutes to allow for the temperature thermistor inside the probe tip to properly compensate for any temperature differences between the fluid and the probe. Using a miniature screwdriver, turn screw #3 (see diagram) until the display matches the 53.0mS fluid (±0.5). The calibration adjustment screw #3 is located inside the battery compartment most toward the center of the meter. Note that the conversion chart will convert the display readings to either ppt (” Salt) and/or SG (Specific Gravity). Click here for an expanded range PINPOINT Salinity chart.

Koi and Freshwater Systems benefit greatly from a small but precise level of added salt. Typically, a 0.3% level is considered optimum. These low levels can only be accurately measured with a PINPOINT Salinity Monitor. Hydrometers and refractometers are generally impossible to use at these low salt levels. The PINPOINT Salinity Monitor should first be calibrated with a 0.3% salt fluid. Prepare this fluid by mixing 11.4 grams of pure uniodized table salt (Kosher Salt) with 3,785mL (1 gallon) of distilled or deionized water. Perhaps your neighborood pharmacist can help measure the 11.4 grams of salt. Submerge the probe into this 0.3% calibration fluid and calibrate the PINPOINT Salinity Monitor to display 5.5mS by adjusting screw #3. Your PINPOINT Salinity Monitor is now calibrated to read the low salt levels of a Koi pond, etc. It is important to take into account the existing salt level in a pond before adding any additional salt.

Salinity is a complex subject and one must be sure of the target specific gravity or ppt Salt has been properly selected in advance. The PINPOINT Salinity Monitor is automatically temperature compensated therefore the displayed values are already compensated and corrected.

NOTE: Do not adjust screw #4 since this is used to set frequency and requires specialized equipment for adjustment. Screw #4 has been set at the factory and does not require further adjustment. A small amount of glue has been placed on screw #4 to prevent accidental adjustment.

σου χρειάζεται υγρό για καλιμπράρισμα

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σου χρειάζεται υγρό για καλιμπράρισμα

Μέχρι να βρεις υγρό ή αν δε μπορείς να βρείς μπορείς να καλιμπράρεις με όσμωση στο 0 και με νερό τσεκαρισμένο με ρεφρακτόμετρο στο 1025. Θα περιμένεις να σταθεροποιηθεί η μέτρηση και μετά θα γυρίζεις την βίδα. Φυσικά η ακρίβεια δε θα είναι απόλυτη αλλά θα είσαι πολύ κοντά :thumbup:

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ok euxaristo poli paidia.

tha to tsekaro

:thumbup::)

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ξερει κανεις πως καλημπρουμε το pinpoint salinity meter...;

προσπαθησα σε νερο απο Ρ.Ο. δηλαδη 0.00, αλλα το salinity meter δειχνει 1.1 και δεν παει παρα κατω...

τι να κανω;

Επίσης να τσεκάρεις με TDS ότι η όσμωση είναι όντως 0 γιατί μπορεί να είναι 5-10-20 οπότε καλά σου βγάζει το salinity 1.1

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