Technical specifications
A-36 ADAM 4000 Series User's Manual
A.16 ADAM-4080D Counter/Frequency Input Module with
  LED Display
Table A-20   ADAM-4080D Specifications
Input channels    Two independent 32-bit counters
Input frequency    50 kHz max.
Input mode    Isolated or non-isolated
Isolation input level
Logic level 0    +1 V max
Logical level 1    +3.5 V to +30 V
Isolation voltage    2500 V
RMS
Non-isolation input level    Programmable threshold
Logic Ievel 0    0 to +5 V (default = 0.8 V)
Logic level 1    0 to +5 V (default = 2.4 V)
Input pulse width    >10 µsec
Maximum count    4,294,967,295 (32 bits)
Programmable digital    2 µsec to 65 msec
noise filter
Alarming    High and Low comparators on counter 1
Frequency Measurement
Range    5 Hz to 50 KHz
Programmable built-in    1.0/0.1 sec
gate time
Display    LED indicator 5-digit readout; CH 0 or CH 1
   (programmable)
Digital Output Channels    2 channels Open collector to 30 V
Sink current    30 mA max. load
Power dissipation    300 mW
Watchdog timer                 Yes
Power requirements    +10 to +30 V
DC
 (non-regulated)
Power consumption    2.0 W