PRODUCT DATASHEET ET-8INS EtherTRAKTM INSTRUMENTATION INPUT Select the ET-8INS when you need to read thermocouples, or you need isolated 16 bit inputs for high accuracy, or to connect to floating 4-20 mA inputs. PRODUCT HIGHLIGHTS Advanced 16 bit A/D for extreme accuracy Differential inputs minimize noise and ground loops Software selectable ranges - mix inputs on module Linearizes and compensates thermocouple readings Upscale/downscale thermocouple burnout detection PERFORMANCE SPECIFICATIONS 8 channels Lowest voltage range +/- 0.062 Volts Maximum voltage range +/- 10 Volts Auto-polarity current range 4-20 mA, 0-20 mA Thermocouple types J,K,E,R,T,B,C,N,S1 A/D resolution 16 bits (0.003%) Full scale accuracy (@20°C) +/- 0.02% Input span and offset adjustability +/- 25% Span and offset temp. coefficient +/- 30 ppm per °C typical Voltage range input impedance 200K Ohms Current range input impedance 100 Ohms CMRR (@ 50/60 Hz) 140 dB DMRR (@ 50/60 Hz) 66 dB Common mode input voltage: Between two input terminals +/- 25VDC Between inputs and ground 1200 Volts No damage input voltage +/- 50 VDC Fastest scan rate (all 8 channels) 100 mS2 Required supply voltage 10-30 VDC (1.6 watt typical) Operating temperature range -30 to 70° C Storage temperature range -40 to 85° C Humidity (non-condensing) 5 to 95% Notes: 1 Thermocouple inputs are cold-junction compensated and reported as F,C, 0.1F or 0.1C. 2 This scan rate applies to modules built after 30-July-04. Earlier models may differ. Contact us for details. RS485 PORT FOR I/O EXPANSION 32 Max. RS485 stations (up to 512 I/O) Baud rate: 38,400 bps Recommended distance of up to 0.5 mile Protocol: Sixnet “I/O for Windows”, Modbus ASCII & RTU Isolation (from Ethernet port) 1200 Volts RMS 1 minute ORDERING INFORMATION ET-8INS-U ET-8INS-M Instrumentation module with base Replacement module only All specifications are subject to change. Consult factory for latest info. Sixnet Technology Park • 331 Ushers Road • Ballston Lake, NY 12019 • USA 1.518.877.5173 • Fax 1.518.877.8346 • [email protected] SOLUTIONS FOR YOUR INDUSTRIAL NETWORKING CHALLENGES DATASHEET ET-8INS 2-MAR-09 WWW.SIXNET.COM