Mô tả sản phẩm: Nhiệt kế cặp nhiệt điện Extech 421502
- Khả năng chịu nước thiết kế chắc chắn với bao đựng bảo vệ / đứng
-LCD hiển thị T1, T2 hoặc T1-T2, cộng với thời gian trôi qua
-Dữ liệu Hold, tương đối, MIN / MAX / AVG và GIỮ chức năng
- lập trình âm thanh báo động
- Lựa chọn ° C / ° F đơn vị
General Specifications
Display 5 digit LCD multifunction display
Battery Power Supply NEDA 1604, IEC 6F22, or 006P 9VDC battery.
Auto Power off Meter shuts down after approx. 30 mins. of inactivity
Battery life 100 hours typical with carbon zinc battery
Dimensions / Weight 7.5 x 3.6 x 2.1” (192x91x52.5mm); 11.7oz. (365g)
J TC Range -328 to 1922°F (-200 to 1050°C)
K TC Range -328 to 2498°F (-200 to 1370°C)
Resolution 0.1°C or 0.2°F
Temperature units Selectable C or F temperature units
Accuracy ±(0.05% rdg + 0.3°C) -50°C to 1370°C, ±(0.05% rdg + 0.7°C) -50°C to -200°C, ±(0.05% rdg + 0.6°F) -58°F to 2498°F, ±(0.05% rdg + 1.4°F) -58°F to -328°F
Temperature Coefficient 0.1 times the applicable accuracy specifications per °C from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F)
Water resistant housing Gasket protected front panel
Input Protection 24VDC or 24VAC rms max. input on any combination of inputs. Max voltage : between T1 and T2 inputs = 1V
Reading rate One reading per second
Input connectors Accepts standard miniature thermocouple connectors
Supplied thermocouple 4', type K, teflon insulation
Max insulation temp 260 °C (500 °F)
Accuracy +2.2 o C or +0.75% of rdg (whichever is greater) from 0 °C to 800 °C
Ambient Operating Range 32 to 122 °F (0 to 50 °C); less than 80% RH
Storage Temperature -4 to 140 °F (-20 to 60 °C); less than 70% RH
Alarm 95dB