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Safety voltages, Bus interface, Mechanical – Measurement Computing USB-2001-TC User Manual

Page 17: Environment

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USB-2001-TC User's Guide

Specifications

17

Safety voltages

Connect only voltages that are within these limits.

Table 6. Safety voltage specifications

Parameter

Conditions

Specification

Isolation

Channel-to-earth ground

+30 V maximum (Note 3)

Note 3:

Measurement Category I is for measurements performed on circuits not directly connected to the
electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical
supply system that powers equipment. This category is for measurements of voltages from specially
protected secondary circuits. Such voltage measurements include signal levels, special equipment,
limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Bus interface

Table 7. Bus specifications

Parameter

Specification

USB specification

USB 2.0 Full-Speed

Device compatibility

USB 1.1, USB 2.0

Mechanical

Table 8. Mechanical specifications

Parameter

Specification

Dimensions

62.56 mm (L) x 38.10 mm (W) x 20.32 mm (H)
2.46 in. (L) x 1.50 in. (W) x 0.80 in. (H)

Cable Length

2 meters (6.5 feet)

Weight

Approximately 116 g (4.1 oz)

Environment

Table 9. Environmental specifications

Operating temperature range

0 to 55 ° C

Storage temperature range

–40 to 85 ° C

Operating humidity

10 to 90% non-condensing

Storage humidity

5 to 95% RH, noncondensing

Maximum altitude

2,000 m (at 25 ºC ambient temperature)

Pollution degree

2

Note 4:

The USB-2001-TC is intended for indoor use only.