Measurement Computing SWITCH - Manual (Page 31)

31
Chapter 6
Specifications
All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.
USB compliance
Device type USB Version 1.1 Low Speed (1.5 Mbs) device
Device compatibility USB 1.1, USB 2.0
Power consumption
5 V USB Bus power 20 mA typical , 25 mA maximum
External 9V unregulated supply
(Power supply included) All relays off 30 mA typical, 40 mA maximum
All relays on 500 mA typical, 625 mA maximum
Power supply voltage range 7.5V – 20V
Output specification
Number 8
Contact configuration 8 FORM C (SPDT) NO, NC and Common available at connector .
Contact rating 6 amperes (A) @ 120 volts AC (VAC) or 28 volts DC (VDC) resistive
Contact Type Gold overlay silver
Contact resistance 100 mΩ maximum
Operate time 10 ms maximum
Release time 5 ms maximum
Vibration 10 to 55 Hz (Dual amplitude 1.5 mm)
Shock 10 G (11 ms)
Dielectric isolation 500 V (1 minute)
Life expectancy 10 million mechanical operations, minimum
Power on RESET state Not energized. NC in contact to Common.
Isolated inputs
Number 8
Isolation 500 V
Resistance 1.6 KΩ minimum
Voltage range DC Input high +5.0 VDC minimum or –5.0 VDC minimum
Input low +1.5 VDC maximum or –1.5VDC maximum
Input range 30 VDC maximum
AC (with filter) Input high 3.0 V
rms
minimum (50-1000 Hz)
Input low 1.5 V
rms
maximum (50-1000 Hz)
Response w/o filter 20 µs
w/ filter 5 ms
Filters Time constant 5 ms (200 Hz)
Filter control Software programmable at each input.
Power-up /reset Filters off