NI-9226 Specifications
- Updated2023-06-29
- 8 minute(s) read
NI-9226 Specifications
Connector Types
The NI-9226 has more than one connector type: NI-9226 with spring terminal and NI-9226 with DSUB. Unless the connector type is specified, NI-9226 refers to all connector types.
The NI-9226 with spring terminal is available in two types: push-in spring terminal and spring terminal. The push-in type spring terminal connector is black and orange. The spring terminal connector is black. NI-9226 with spring terminal refers to both types unless the two types are specified. Differences between the two types of spring terminal connectors are noted by the connector color.
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
Specifications are valid for the range -40 °C to 70 °C unless otherwise noted.
Input Characteristics
Number of channels | 8 analog input channels | ||||||
ADC resolution | 24 bits | ||||||
Type of ADC | Delta-sigma | ||||||
Sampling mode | Scanned | ||||||
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Measured Value | Typical (25 °C) | Maximum (-40 °C to 70 °C) |
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-200 °C to 150 °C | ±0.15 °C | ±0.5 °C |
150 °C to 850 °C | ±0.20 °C | ±1.1 °C |
Measured Value | Typical (25 °C) | Maximum (-40 °C to 70 °C) |
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-200 °C to 150 °C | ±0.20 °C | ±0.5 °C |
150 °C to 850 °C | ±0.30 °C | ±1.1 °C |
Measurement Conditions | Offset Error | Gain Error |
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Typical (25 °C) | ±0.06 Ω | ±0.007% |
Maximum (-40 °C to 70 °C) | ±0.83 Ω | ±0.058% |
Measurement Conditions | Offset Error | Gain Error |
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Typical (25 °C) | ±0.11 Ω | ±0.007% |
Maximum (-40 °C to 70 °C) | ±1.0 Ω | ±0.058% |
Mode | Offset Drift | Gain Drift |
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4-wire | ±31 mΩ/°C | ±10 ppm/°C |
3-wire | ±33 mΩ/°C | ±10 ppm/°C |
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Excitation current | 0.1 mA per channel | ||||||||||||||||||
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Input bandwidth (high-resolution mode) | 3.3 Hz |
Overvoltage protection | ±30 V, maximum |
NI-9226 with Spring Terminal (Black Connector) Safety
Voltages
Connect only voltages that are within the following limits.
Channel-to-channel | None | ||||||
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NI-9226 with Push-In Style Spring Terminal (Black/Orange Connector)
Safety Voltages
Connect only voltages that are within the following limits.
Channel-to-channel | None | ||||||
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NI-9226 with DSUB Safety Voltages
Connect only voltages that are within the following limits.
Channel-to-channel | None | ||||||||
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Measurement Category
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.
Measurement Category II
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 U.S. or 230 V for Europe.
Environmental Characteristics
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Ingress protection | IP40 | ||||||||||||
Pollution Degree | 2 | ||||||||||||
Maximum altitude | 5,000 m | ||||||||||||
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To meet these shock and vibration specifications, you must panel mount the system.
Power Requirements
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Physical Characteristics
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Dimensions | Visit ni.com/dimensions and search by module number. |
NI-9226 with
Spring Terminal (Black Connector)
The NI-9226 (black connector) requires a flathead screwdriver with a 2.3 mm × 1.0 mm (0.09 in. × 0.04 in.) blade for signal connection; insert the screwdriver into a spring clamp activation slot to open the corresponding connector terminal, press a wire into the open connector terminal, and then remove the screwdriver from the activation slot to clamp the wire into place.
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NI-9226 with
Push-In Style Spring Terminal (Black/Orange Connector)
The push-in spring style NI-9226 does not require a tool for signal connection; push the wire into the terminal when using solid wire or stranded wire with a ferrule, or by pressing the push button when using stranded wire without a ferrule.
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Power Requirements
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Calibration
Calibration interval | 1 year |
1 For high-speed mode, add 0.1 °C of error.
2 The 3-wire specification assumes equal wire length connecting RTD+ terminal to RTD sensor and COM terminal to RTD sensor. If the lengths are unequal or there is a mismatch between the path resistances, use the following formula to evaluate additional error: °C error = Rmismatch * 0.342 °C/Ω
3 For high-speed mode, add 0.27 Ω of error.
4 This image is provided courtesy of Linear Technology Corp.
5 High-speed filter response has the same characteristics as the high-resolution filter response except that the first notch is at 14 kHz.
In This Section
- Connector Types
- Definitions
- Conditions
- Input Characteristics
- NI-9226 with Spring Terminal (Black Connector) Safety
Voltages
- NI-9226 with Push-In Style Spring Terminal (Black/Orange Connector)
Safety Voltages
- NI-9226 with DSUB Safety Voltages
- Measurement Category
- Environmental Characteristics
- Power Requirements
- Physical Characteristics
- Power Requirements
- Calibration