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Extech 421509 7 Thermocouple Dual Input Datalogger with Alarm
Item #:
EXT-421509
Brand:
Extech
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421509 7 Thermocouple Dual Input Datalogger with Alarm by Extech
Features
- Seven Thermocouple type selections: K, J, T, E, R, S, N
- Large backlit LCD with two secondary displays for simultaneous T1, T2, T1-T2, Time and advanced readouts
- T/C offset adjustment
- REC, MAX, MIN, MAX-MIN, AVG and °C/°F switchable
- Data Hold and Relative Function
- Built-in bi-directional RS-232 PC interface
- Real time clock with calendar
- Selectable auto power off function, disable capability
- Complete with two Type-K bead wire temperature probes (-4 to 482°F /-20 to 250°C), Windows® 95/98/ME/NT/ 2000/XP compatible software, RS-232 cable, protective holster, and 9V battery
Display | 4-1/2 digit (19,999), 3-Display, LCD with EL Backlighting |
Input Protection | 24VDC or 24VAC rms maximum input on any combination of inputs. Max voltage between T1 and T2 inputs is 1V |
Reading rate | 2.5 times per second |
Input connectors | Accepts standard sub-miniature thermocouple connectors |
Alarm Output | 6-pin mini DIN, max. 5mA@5 to 30VDC (external source) |
Operating conditions | 32 to 122°F (0 to 50°C); less than 80% RH |
Storage conditions | -4 to 140°F (-20 to 60°C); less than 70% RH |
Dimensions / Weight | 7.5 x 3.6 x 2.1" (192 x 91 x 52.5mm); 11.7oz. (365g) |
Power Supply | 9V battery or optional AC Adaptor |
Auto Power off | User programmable from 5 to 19999 minutes |
Battery life | 100 hours typical |
Thermocouple |
Range |
Resolution |
K type |
-328 to 2501°F (-200 to 1372°C) |
0.1°F (0.1°C), 1°F > 2000° |
J type |
-346 to 2192°F (-210 to 1200°C) |
0.1°F (0.1°C), 1°F > 2000° |
T type |
-328 to 752°F (-200 to 400°C) |
0.1°F (0.1°C) |
E type |
-346 to 1832°F (-210 to 1000°C) |
0.1°F (0.1°C) |
R type |
32 to 3212°F (0 to 1767°C) |
1°F (1°C) |
S type |
32 to 3212°F (0 to 1767°C) |
1°F (1°C) |
N type |
-58 to 2372°F (-50 to 1300°C) |
0.1°F (0.1°C) |
Thermocouple | Accuracy |
K, J, T, E types | ±(0.05% rdg + 0.6°F) -58°F to 2501°F ±(0.05% rdg + 1.4°F) -58°F to -346°F ±(0.05% rdg + 0.3°C) -50°C to 1370°C ±(0.05% rdg + 0.7°C) -50°F to -210°C |
N type | ±(0.05% rdg + 1.6°F) -58°F to 32°F ±(0.05% rdg + 0.8°F) 32°F to 2372°F ±(0.05% rdg + 0.8°C) -50°C to 0°C ±(0.05% rdg + 0.4°C) 0°F to 1300°C |
R, S types | ±(0.05% rdg + 4.0°F) 32°F to 3212°F ±(0.05% rdg + 2.0°C) 0°C to 1767°C |
Temperature Coefficient | 0.1 multiplied by the accuracy 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) |
Supplied Thermocouples | 4', type K (with teflon insulation) Max insulation temp: 500°F (260°C) Accuracy: ± 4°F (±2.2°C) or ± 0.75% of rdg (whichever is greater) from 32 to 1472°F (0 to 800°C) |