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Best 50 Hz rejection

80 dB at 50 Hz

High resolution

65 dB at 50 Hz and 60 Hz

Excitation level for Half-Bridge and Full-Bridge modes

Mode

Load Resistance (Ω)

Excitation (V)

Half-Bridge

700

2.5

240

2.0

Full-Bridge

350

2.7

120

2.2

Excitation level for Resistance, RTD, and Quarter-Bridge modes

Load Resistance (Ω)

Excitation (mV)

120

50

350

150

1 k

430

10 k

2200

MTBF

384,716 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part

Stress Method

Note Contact NI for Bellcore MTBF specifications at other temperatures or for MIL-HDBK-217F specifications.

Power Requirements

Power consumption from chassis

Active mode

750 mW max

Sleep mode

25 μW max

Thermal dissipation (at 70 °C)

Active mode

625 mW max

Sleep mode

25 μW max

Physical Characteristics

Note For two-dimensional drawings and three-dimensional models of the C Series module and connectors, visit

and search by module number.

ni.com/dimensions

Spring-terminal wiring

18 to 28 AWG copper conductor wire with 7 mm (0.28 in.) of insulation stripped

from the end

Weight

156 g (5.5 oz)

Safety

If you need to clean the module, wipe it with a dry towel.

Safety Voltages

Connect only voltages that are within the following limits.

Channel-to-channel

Continuous

250 VAC, Measurement Category II

Withstand

1,390 VAC, verified by a 5 s dielectric withstand test

Channel-to-earth ground

Continuous

250 VAC, Measurement Category II

Withstand

2,300 VAC, verified by a 5 s dielectric withstand test

Zone 2 hazardous locations applications in Europe channel-to-channel and

channel-to-earth ground

60 VDC, Measurement Category I

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS

voltage. This category is for

2

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.

Caution Do

connect to signals or use for measurements within Measurement Categories II, III, or IV.

not