CEM

CEM Channel Expansion Module The Module provides channel expansion (10 - 30 channels, depending your sensor type) with relay multiplexer for up to 100V inputs. The Module is suitable for the DT500 / DT505 / DT515 / DT600 / DT605 / DT615 dataTaker's.   Increased Channel Capacity   You can easily increase the number of analog and digital channels that your dataTaker has by using the Channel Expansion Module (CEM). Designed to suit the DT500, DT505, DT515, DT600, DT605, DT615 dataTakers, each CEM will add 10 differential or 30 single ended analogue voltage channels, or 10 resistance or RTD channels, or 10 current or 4–20mA loop channels, in any combination. The analog input channels use relay multiplexing, providing voltage measurement of up to ±100V when used in conjunction with relay multiplexed dataTakers. The CEM also has 20 digital input channels, as well as 5 open collector 200mA/30Vdc digital outputs and 5 voltage free 110Vac/5A contacts. Features • Universal channel support • 10 differential / 30 single-ended analog channels • Relay multiplexer (input impedance 1MOhm or >100MOhms selectable, common mode   range depends on host dataTaker) • 20 TTL/CMOS-compatible digital input channels for digital state (accept voltage-free contact closure inputs) • 5 changeover relay digital output channels (110Vac/dc 5A), 5 open collector digital output channels (30Vdc 200mA) • Add up to two Channel Expansion Modules per dataTaker • Internal temperature sensor monitors module temperature for thermocouple reference  junction compensation • Powered directly from host dataTaker, sleeps (low power mode) when dataTaker sleeps WWW omniinstruments.ie