Extech 421509 7 Thermocouple Dual Input Datalogger with Alarm

Item #:

EXT-421509

Brand:

Extech

Our tech experts are ready to help!

Share this product:

421509 7 Thermocouple Dual Input Datalogger with Alarm by Extech

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

General Specifications

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

Range Specifications

Accuracy Specifications

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)