User manual HANNA INSTRUMENTS HI 9565

[. . . ] If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. Reproduction in whole or in part is prohibited without the written consent of the copyright owner. GENERAL DESCRIPTION HI 9564 and HI 9565 are portable thermo-hygrometers for measurements of Temperature and Relative Humidity. [. . . ] Note: It is not recommended to install or remove the probe while the meter is on. · At start-up the instrument displays all LCD segments for a few seconds (or as long as the ON/OFF button is held), then it shows the current RH measurement. · Both models are provided with three slide switches located in the battery compartment which allow the user to select the following options: 1. °C/°F unit for temperature and dewpoint (HI 9565 only) readings; 2. To access these features, remove the battery cover on the back of the meter and extract the battery. Select the desired settings, insert the battery and close the cover. ERROR MESSAGES All modes of operation · Blinking values denote indicative readings. This will occur for the RH display and dewpoint display if the measured temperature is less than 0°C or greater than 60°C. · A blinking full scale value means that the reading is out of range. No probe connected or invalid calibration data retrieved from the probe. The meter continues checking probe until error condition is corrected. Error in temperature measurement: the reading is extremely over range or the probe is damaged. Calibration mode, upon pressing CAL to accept value The measured RH is greater than the set value by more than 9% RH. The calibration temperature is too high. RH CALIBRATION The RH calibration is a single point procedure (offset). · To enter calibration: from normal mode press and hold the CAL button for approx. The meter will display "OFS" and then flash the default value (60% RH) for calibration. · To switch the display to show temperature, dewpoint (HI 9565 only) or return to RH reading, press RANGE. Note: A blinking full scale value means that the reading is out of range. The "H" tag will blink and the meter continues measuring and updating the min/max values internally. Note: Even in Hold mode, the user can still scrow through the channels with RANGE, to show the status of the meter when HOLD was pressed. Note: The CLEAR and CAL keys are disabled when the meter is in Hold mode. · To display the current minimum (or maximum) value for the current measurement range, while in normal or hold mode, press and hold the MIN (or MAX) key. The "MIN" (or "MAX") tag turns on while the corresponding button is pressed. The display will return to normal mode 1 second after releasing the button. · To reset the min/max values to the current measurements, press CLEAR. [. . . ] Press ON/OFF to power the meter on and return to normal mode with the previous calibration data. · To clear any previous offset calibration value, while in calibration mode, press and hold the ON/OFF key and then CAL. The meter will display the "CLr" message and then "Str", before returning to the normal mode. Note: If a weak battery is detected or the probe is removed during calibration, the meter will abort the calibration procedure and shut off. The calibration temperature is too low. BATTERY REPLACEMENT The BEPS (Battery Error Prevention System) recognizes two different low battery levels. [. . . ]