The SmartReader Plus 9 is a versatile data logger designed for easy counting and recording of switch contact closures and voltage pulses. It has two pulse/contact channels.

Specifications

Range	4095 pulses/sample period
Accuracy	+/- 1 pulse/sample period
Input Voltage	Low = 0 to 0.5 volts DC High = 4.5 to 24 volts DC
Input Impedance	> 1.0 M ohm for Vin < 5V > 4.0 K ohm for Vin > 5V
Min. Pulse Width	50% Duty Cycle: Slow input: 2 milliseconds Fast input: 10 microseconds
Maximum Frequency	100 KHz
Switch Inputs	Input Type: Uncommitted “dry” contacts (relay or switch) Excitation: 5 microamps contact current 3.6 volts open circuit Contacts: Sealed gold-plated recommended

Ordering Information

Model	Memory	Catalog #
SRP-009	32 KB	01-0016
SRP-009-128K	128 KB	01-0130