13
All the instruments are factory calibrated for temperature.
Hanna’s temperature probes are interchangeable and no temperature
calibration is needed when they are replaced.
If the temperature measurements are inaccurate, temperature
recalibration should be performed.
For an accurate recalibration, contact your dealer or the nearest
Hanna Customer Service Center, or follow the instructions below.
• Prepare a vessel containing ice and water and another one
containing hot water (around 50 ºC). Place insulation material
around the vessels to minimize temperature changes.
• Use a calibrated thermometer with a resolution of 0.1 ºC as a
reference thermometer.
• With the instrument off, press and hold down the CAL & MEM
keys, then power on the instrument. The “CAL” message will
appear and the secondary LCD will show “0.0 ºC”.
• Submerse the temperature probe in the vessel with ice and water
as near as possible to the reference thermometer. Allow a few
seconds for the probe to stabilize.
• Use the ARROW keys to set the reading on the secondary LCD to
that of ice and water, measured by the reference thermometer.
• When the reading is stable and close to the selected calibration point,
“READY” message will appear and “CFM” message will blink.
• To confirm press CFM. The secondary LCD will show “50.0 ºC”.
TEMPERATURE CALIBRATION
(for technical personnel only)
To Next Page
Loading...
