ACR Electronics SmartReader Plus Reference Manual page 73

Min. Pulse Width
50% Duty Cycle:
Restrictions:
Connections:
Switch Inputs
Input-type:
Excitation:
Contacts:
Voltage Input
Input-type:
Input Voltage:
Specifications are subject to change without notice.
Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger
>4.0K for Vin>5V
Slow input:2 milliseconds
Fast input:10 microseconds
Maximum frequency over sample interval must not exceed
channel range (the total count will stop at 4095)
Removable screw-type terminal strip
Uncommitted "dry" contacts (relay or switch)
5 microamps contact current
3.6 volts open circuit
Sealed gold-plated recommended
Active logic signals
0 to 0.5 volts DC low
4.5 to 24 volts DC high
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