User manual HANNA INSTRUMENTS HI 935005N

[. . . ] If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. First obtain a Returned Goods Authorization number from the Customer Service department, then return the instrument with the Authorization number included along with shipment costs prepaid. If the repair is not covered by the warranty, you will be notified of the charges. [. . . ] 1600 hours of continuous use (BL off) user selectable: 8 min, 60 min, disabled -10 to 50°C (14 to 122°F); RH 100% 150 x 80 x 36 mm (5. 9 x 3. 1 x 1. 4") 235 g (8. 3 oz. ) HI 935009 (*) Range may be limited by probe. Keyboard Functions: Main features: · · · · · · · · · · · · · Two independent measurement channels, T1 and T2 HI 766 K-thermocouple probes Display of temperature in degrees Celsius or Fahrenheit Range -50 to 1350°C or -58 to 2462°F HOLD function HI and LO (Max and Min) temperature values always displayed on the LCD DISP function to select the information to be displayed (Normal, Relative or T1/T2) Remaining battery life indication / low battery detection Waterproof casing Auto-off capability (HI 935009 only) MR function for recalling memorized reading (HI 935009 only) Backlight feature (HI 935009 only) User calibration at 0°C (HI 935009 only) 6 ON/OFF : turn the meter ON and OFF. ALT (HI 935009 only) : enable the second function keys; the "ALT" tag turns on to indicate that the second functions are enabled. Note: The ALT key can be released before pressing the second function key for 1-hand operation. ALT/ CAL : press and hold for about 5 seconds to enter the Calibration mode (with reading within ±3°C range). (ALT +) BL : toggle the backlight ON and OFF. 7 OPERATIONAL GUIDE To switch the instrument ON, press the ON/OFF key. The thermometer will carry out a self diagnostic test routine, the LCD will show all segments for a few seconds (or as long as ON/OFF is held), followed by the percentage indication of the remaining battery life. HOLD mode. Note: Although the display is frozen, internally the meter continues measuring and updating Hi/Lo and relative values. In HI 935009 only, the held value is also stored in non-volatile memory and can be recalled by pressing (ALT+) MR key. While the MR key is held, the "HOLD" tag lights up and the meter displays the stored value; when the MR key is released, after 1 second the meter returns to normal measurement mode. The thermometer then enters normal measurement mode. If a temperature probe is plugged in, the meter displays the measured temperature. If no probe is plugged in, or if the reading is over-range, the display shows flashing dashes. If a measurement is slightly over the range of the meter specifications, the display will flash the closest full-scale value. To switch the meter OFF, press the ON/OFF key. HIGH/LOW TEMPERATURES The maximum and minimum temperatures are continuously monitored and displayed on the lower portion of the LCD. Note: When the reading goes over-range or the probe is removed, the Hi and Lo values display dashes until cleared. CLEAR FUNCTION Upon pressing the CLR key, the High/Low values may be cleared at any time during measurement and the current reading is assigned to the highest and lowest temperature values for the displayed channel only. °C/°F SELECTION Measurements can be displayed in either degrees Celsius or Fahrenheit. The meter is factory set to °C scale; to change the scale, press °C/°F key or (ALT+) °C/°F keys, AUTO SHUT-OFF (HI 935005 and HI 935009) HI 935005 / 5005N HI 935009 or set the switch located in the battery compartment (HI 935002 only, see figure on page 10). HOLD and MR FUNCTIONS The HOLD function is activated by pressing the HOLD key. The measured temperature is held on the display until HOLD is pressed again. The "HOLD" tag blinks on the display while in 8 To save battery life, the HI 935005 and HI 935009 models are provided with an auto-off feature, which switches the instrument off after a certain period of nonuse. The delay time can be changed by the user (8 minutes, 60 minutes, or disabled). To access this feature, the HI 935005 is provided with an internal button located in the battery compartment (see figure on page 10). Unscrew the 4 screws on the back of the meter and select the desired auto-off time period by pressing the button and viewing the value on the LCD. [. . . ] · Ensure that the meter is measuring a temperature within ±3°C. · To enter the Calibration mode, press and hold the CAL button for about 5 seconds. · The CAL tag turns on to indicate that the Calibration mode has been entered. To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed 24VAC or 60 VDC. [. . . ]