[. . . ] Instruction Manual Checktemp®1 HI 98509 · HI 98510 Pocket Thermometers with Stainless Steel Probe, ±0. 3°C Accuracy and Calibration-Check ® Dear Customer, Thank you for choosing a Hanna product. Please read carefully this instruction manual before using the instrument. [. . . ] The Calibration-Check® function ensures always accurate measurements: simply activate the "test" switch and the internal calibration test device will simulate a 0. 0°C (32. 0°F) signal that has to be read on the LCD within a range of ±0. 3°C (±0. 5°F). This assures the user that the reading is reliable and accurate, every time. Two models are available: · HI 98509 (Checktemp®1 C) reads temperature in °C unit · HI 98510 (Checktemp®1 F) reads temperature in °F unit SPECIFICATIONS Range Resolution -50. 0 to 150. 0°C / -58. 0 to 302. 0°F 0. 1°C / 0. 1°F Accuracy ±0. 3°C (-20 to 90°C) / ±0. 5°C (outside) ±0. 5°F (-4 to 1942°F) / ±1°F (outside) Probe Environment Battery Type Battery Life Dimensions Weight Stainless steel, 1 m (3. 3') cable 0 to 50°C (32 to 122°F); RH max 95% 1x1. 5V AAA alkaline Approx. 3 years of use 106 x 58 x 19 mm (4. 1x5. 2x0. 7") 80 g (2. 8 oz. ) www. hannainst. com BATTERY REPLACEMENT When the Checktemp® 1 cannot be switched on or the display fades, remove the two screws, remove the battery cover and change the 1. 5V AAA battery, while paying attention to its polarity. Battery should only be replaced in a safe area using an alkaline 1. 5V AAA battery. RUN ON RUN ON TEST 0°C/32°F OFF TEST 0°C/32°F OFF BATTERY 1. 5V AAA BATTERY 1. 5V AAA + - OPERATION CALIBRATION CHECK SWITCH ® WARRANTY These meters are guaranteed for one year against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. 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. 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. · Turn the Checktemp 1 on and dip the probe in the sample. · Wait a few seconds for the display to stabilize · After use, always switch the meter off. [. . . ] To avoid electrical shocks, do not use this instrument when voltage at the measurement surface exceeds 24 Vac or 60 Vdc. To avoid damage or burns, do not perform any measurement in microwave ovens. ISTCHT1R2 07/05 [. . . ]