NI-9426 Specifications
- Updated2024-11-25
- 5 minute(s) read
NI-9426 Specifications
Definitions
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.
Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.
- Typical specifications describe the performance met by a majority of models.
- Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
Specifications are Typical unless otherwise noted.
Conditions
The following specifications are typical for the range -40 °C to 70 °C unless otherwise noted. All voltages are relative to Vsup unless otherwise noted.
NI-9426 Pinout
Signal | Description |
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DI | Digital input signal connection |
NC | No connection |
Vsup | Voltage supply connection |
Safety Voltages
Connect only voltages that are within the following limits:
Vsup-to-channel | 30 VDC maximum | ||||||||||||
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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. 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.
Environmental Characteristics
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Ingress protection | IP40 | ||||||||||||
Pollution Degree | 2 | ||||||||||||
Maximum altitude | 2,000 m | ||||||||||||
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To meet these shock and vibration specifications, you must panel mount the system.
Input Characterstics
Number of channels | 32 digital input channels | ||||||||||||||||||||||||||
Input type | Sourcing | ||||||||||||||||||||||||||
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Input impedance | 30 kΩ ±5% | ||||||||||||||||||||||||||
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Hold time[2]2 Hold time is the amount of time input signals must be stable after initiating a read from the module. | 0 s minimum | ||||||||||||||||||||||||||
Setup time[3]3 Setup time is the amount of time input signals must be stable before reading from the module. | 1 μs minimum | ||||||||||||||||||||||||||
Update/transfer time[4]4 The update/transfer time is valid when the module is used in a CompactRIO system. When used in other systems, driver software and system latencies impact this time. | 7 μs maximum | ||||||||||||||||||||||||||
MTBF | 955,723 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method |
Power Requirements
Physical Characteristics
If you need to clean the module, wipe it with a dry towel.
Weight | 147 g (5.2 oz) |
1 Vsup is the external power supply voltage.
2 Hold time is the amount of time input signals must be stable after initiating a read from the module.
3 Setup time is the amount of time input signals must be stable before reading from the module.
4 The update/transfer time is valid when the module is used in a CompactRIO system. When used in other systems, driver software and system latencies impact this time.
5 The external power supply may power the module during sleep mode.