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USB-2404 Series

Specifications (USB-2404-UI)

Half-Bridge and Full-Bridge Mode Excitation Level

Measurement

Conditions

Load

Resistance (Ω)

Excitation (V)

Half-Bridge

700

2.5

Half-Bridge

240

2.0

Full-Bridge

350

2.7

Full-Bridge

120

2.2

Power

Current Consumption from USB: 500 mA, max

Bus interface

USB Specification: USB 2.0 Hi-Speed

Environmental

The USB-2404-UI is intended for indoor use only, but may be used outdoors if

installed in a suitable enclosure.

Operating Temperature Range: 0 ºC 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)

Mechanical

Dimensions (L × W × H): 134 × 143 × 39 mm (5.27 × 5.64 × 1.54 in.)

Weight:1.25 lbs (567 grams)

Resistance, RTD, and Quarter-Bridge Mode Excitation

Level

Load Resistance (Ω)

Excitation (mV)

120

50

350

150

1,000

430

10,000

2,200

Input Noise

Mode, Range

Conversion Time

High Speed

Best of 60 Hz Rejection

Best of 50 Hz Rejection

High Resolution

Voltage, ±60 V

7.6

1.3

1.3

0.5

Voltage, ±15 V

10.8

1.9

1.9

0.7

Voltage, ±4 V

10.8

2.7

2.7

1.3

Voltage, ±1 V

7.6

1.3

1.3

0.5

Voltage/Thermocouple, ±125 mV

10.8

1.9

1.9

1.0

Current, ±25 mA

10.8

1.9

1.9

1.0

4- and 2-Wire resistance, 10 kΩ

4.1

1.3

0.8

0.3

4- and 2-Wire resistance, 1 kΩ

7.1

1.8

1.2

0.7

4- and 3-Wire RTD, Pt 1000

7.6

1.7

1.1

0.4

4- and 3-Wire RTD, Pt 100

10.8

1.9

1.9

0.9

Quarter-Bridge, 350 Ω

5.4

1.0

1.0

0.7

Quarter-Bridge, 120 Ω

5.4

1.0

1.0

0.7

Half-Bridge, ±500 mV/V

3.8

0.5

0.5

0.2

Full-Bridge, ±62.5 mV/V

5.4

1.0

1.0

0.8

Full-Bridge, ±7.8 mV/V

30

4.7

4.7

2.3

Safety Voltages

Connect only voltages that are within the limits specified below.

Channel-To-Earth Ground Isolation

Continuous: 250 VAC, Measurement Category II

Withstand: 2300 VAC, verified by a 5 second dielectric withstand test

Channel-To-Channel Isolation

Continuous: 250 VAC, Measurement Category II

Withstand:1390 VAC, verified by a 5 second dielectric withstand test

Measurement Category II is for measurements performed on circuits

directly connected to the electrical distribution system. This cat-

egory 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.

Do not connect the device to signals or use for measurements within Measure-

ment Categories III or IV.

Spring Terminal Connectors

Connector Type: Four 6-position detachable spring terminal connectors

Spring Terminal Wiring: 18 AWG to 28 AWG copper conductor wire with 7 mm

(0.28 in.) of insulation stripped from the end.