AEMC Simple Logger® II Model L642 The Simple Logger® II Model L642 is a two channel thermocouple data logger. The choice of data storage modes and storage rates allows the operator to effortlessly configure the logger to optimize memory usage to the application at hand. Extended Recording Mode XRM® and delayed start time are just two of the many application friendly features. The Simple Logger® II Model L642 records temperature at user selectable rates of 1 every 5 seconds to 1 per day. Using J, K, T, N, E, R or S thermocouples, it measures from -346º to + 1767ºF with resolution down to 0.1º range dependent. This logger can perform a variety of recording tasks with easy and intuitive setup from a computer using the free DataView® software included with the unit. Channels Two Input Two miniature thermocouple connectors Connection °F °C Measurement Range:(Thermocouple Dependent) J -346 to +2192 J -210 to +1200 K -328 to +2501 K -200 to +1372 T -328 to +752 T -200 to +400 N -328 to +2372 N -200 to +1300 E -238 to +1742 E -150 to +950 R 32 to 3212 R 0 to 1767 S 32 to 3212 S 0 to 1767 Accuracy J, K, N, T, E ø ¤ -148°F/-100°C · ± (0.2% of R + 1.1°F/0.6°C)-148°F/-100°C < ø ¤+212°F/+100°C · ± (0.15% of R +1.1°F/0.6°C)¥ +212°F/+100°C · ± (0.1% of R + 1.1°F/0.6°C) Accuracy (R, S) ø = 32°F/0°C to +212°F/+100°C · ± (0.15% of R + 1.1°F/0.6°C)ø ¥ +212°F/+100°C · ± (0.1% of R + 1.8°F/1°C) Resolution ø < 1000°F or °C · 0.1°F or °Cø > 1000°F or °C · 1°F or °C Temperature Coefficient ± (0.02% of R + 0.03°C/°C or ± (0.02% of R + 0.03°F/°F between operating temperature of -10° to 18°C and +28° to 50°C Maximum Differential Input 1V (between input) Sample Rate Maximum of 8 samples taken at storage interval Storage Rate Programmable from 5s to 1 per day Storage Modes Start/Stop, FIFO, extended mode (XRM) and Alarm Recording Length 15 minutes to 8 weeks, programmable using DataView Memory 240,000 measurements (512KB). Recorded data is stored in non-volatile memory and will be retained even if battery is low or removed. Communication USB 2.0 optically isolated Power Source 2x1.5V AA (LR6) alkaline batteries Battery Life 100 hrs to >45 days (depending of sample rate/recording length) Dimensions 4.94 x 2.75 x 1.28 (125 x 70 x 32mm) Weight (with battery) 7 oz (200g) Case Polycarbonate Operating Temperature 14° to 122°F (-10° to 50°C) Storage Temperature -4° to 140°F (-20° to 60°C) Relative Humidity Up to 85% @ 95°F (35°C) Ingress Protection (IP) IP40 EMC EN 61326-1 Safety Compliance IEC 61010-1, EN 61010-2-32 50V CAT III Pollution Degree 2