USB-2404-UI User's Guide
Specifications
19
Bus interface
Table 9. Bus interface specifications
Parameter
Specification
USB specification
USB 2.0 Hi-Speed
Environmental
Table 10. Environmental specifications
Parameter
Specification
Operating temperature range
0 to 60 ºC
Storage temperature range
–40 to 85 ºC
Operating humidity
10 to 90% RH, non-condensing
Storage humidity
5 to 95% RH, non-condensing
Maximum altitude
2000 meter (6562 feet)
Note 2:
The USB-2404-UI is intended for indoor use only, but may be used outdoors if installed in a suitable
enclosure
Mechanical
Table 11. Mechanical specifications
Parameter
Specification
Dimensions
5.27" (L) x 5.64" (W) x 1.54" (H) (134 mm x 143 mm x 39 mm)
Weight
1.25 lbs (567 grams)
Safety voltages
Connect only voltages that are within the limits specified in this table.
Table 12. Safety specifications
Parameter
Conditions
Specification
Channel-to-earth ground isolation
Continuous
250 VAC, Measurement Category II (Note 3)
Withstand
2300 VAC, verified by a 5 second dielectric withstand test
Channel-to-channel isolation
Continuous
250 VAC, Measurement Category II (Note 3)
Withstand
1390 VAC, verified by a 5 second dielectric withstand test
Note 3:
Measurement Category II is for measurements performed on circuits directly connected to the
electrical distribution system. This category refers to local-level electrical distribution, such as that
provided by a standard wall outlet, for example 115 V for US or 230 V for Europe.
Caution!
Do
not
connect the device to signals or use for measurements within Measurement Categories
III or IV.
Spring terminal connectors
Table 13. Spring terminal specifications
Connector type
Four 6-position spring terminal connectors
Spring terminal wiring
18 to 28 AWG copper conductor wire with 7 mm (0.28 in.) of insulation stripped from the
end.
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