User Manual
7
Research Instruments Ltd
IVF Thermometer
Care and Maintenance
Immersioninmediasolutionswillacceleratecorrosionoftheprobetip
due to the salt content of the media. Similarly, long-term exposure to
humidifiedairinsideanincubatormayacceleratecorrosion.Toprolong
the life of the probe, we suggest using plain water drops instead of culture
mediawhencheckingthetemperatureinaPetridish(seepage5).
Aftereachuse,rinsetheprobetipinplainwater,blotdrygentlyand
allowtoairdry.Thenreplacetheplasticcapbeforestoring.
Troubleshooting
Displayshows“O-C”(opencircuit);thismeanstheprobehasfailed.The
mostcommoncauseoffailureisabrokenwireatthetip.Failedprobes
cannot be repaired and must be replaced.
Calibration
WerecommendcalibratingtheIVFThermometerannually.Thiscanbe
done by RI, but it may be more convenient for most users to use a local
testcompany.Werecommendcalibrationbeconductedbyatesthouse
accreditedtonationalstandards.Themetershouldbecalibratedtothe
specificationsshownonpage8.
Calibrationdoesnotinvolveadjustingthemeter,rathercomparisonto
a traceable standard offset. For example, if the calibration certificate
shows a reading of 37.3°C at an actual 37.0°C then the meter will do this
consistently.Thisoffsetcanbeallowedforwhenmakingmeasurements.
Replacing a probe always requires a new calibration. Similarly, the
meter can be used with more than one probe, but each probe should be
calibrated separately with the meter, and care should be taken to apply
thecorrectoffsetforeachprobe.
Thecryo-probedoesnotrequirecalibrationastheinherentaccuracyis
sufficientforthepurpose.Seethespecificationtableonthefollowing
page.
Summary of Contents for IVF Thermometer
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