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NDIR Gas Analyzer Instalation
Teledyne Analytical Instruments 19
(4) Contact input/output (DIO): digital input/output connector
(DIO 1 to 3)
Contact input signal : Voltage is applied from the external 12 to 24 V
DC, max 15mA.
Photo-coupler isolation (from each DI and
ground)
Contact capacity : C contact relay output 24V/1A AC/DC
resistive load