Technical data
Digital thermometer A307
Temperature Scale Celsius or Fahrenheit user-selectable
Measuring range -50…+1300 °C (-58...+2000 °F)
Resolution 1 °C or 1 °F, 0,1 °C er 0,1 °F
Accuracy Accuracy is specied for operating temperatures over the range of 18
°C to 28 °C (64 to 82 °F), for 1 year, not inclusing thermocouple error
±(0,3% rdg +1°C) -50…+1000 °C
±(035% rdg +1 °C) +1000…+1300 °C
±(03% rdg +2 °F) -58…+2000 °F
Input protection 60 V DC or 24 V rms AC maximum input voltage on any combination
of input pins
Reading rate 2,5 times per second
Input connector Accepts standart miniature thermocouple connectors (at blades
spaced 7.9 mm, center to center)
Ambient operating range 0…+50 °C (+32...+122 °F)
Storage temperature -20…+60 °C (-4...+140 °F)
Relative humidity 0...80% (0…35 °C) (32...95 °F)
0…70% (35…50 °C) (95...122 °F)
Display 3½-digit liquid crystal display (LCD) with maximum readiung of 1999
Battery Standart 9V battery (NEDA 1604, IEC 6F22)
Battery life 200 hours typical with carbon zinc battery
Dimensions 147 mm x 70 mm x39 mm (HxWxD)
Weight 7.4 oz (210 g)
Battery replacement
Power is supplied by a 9 volt „transistor“ battery (NEDA 1604, IEC 6F22). The battery-symbol appears on the LCD
display when replacmenet is needed. To replace the battery, remove the three screws from the back of the thermo-
meter and lift off the front case. Remove the battery from case bottom.
Warning:To avoid possible electrical shock, disconect the thermocouple connectors from the thermometer before
removing the cover.
