NI-9213 Specifications
- Updated2023-06-14
- 6 minute(s) read
NI-9213 Specifications
Connector Types
The NI-9213 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-9213 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.
Input Characteristics
Number of channels | 16 thermocouple channels, 1 internal autozero channel, 1 internal cold-junction compensation channel |
ADC resolution | 24 bits |
Type of ADC | Delta-Sigma |
Sampling mode | Scanned |
Voltage measurement range | ±78.125 mV |
Temperature measurement ranges | Works over temperature ranges defined by NIST (J, K, T, E, N, B, R, S thermocouple types) |
Timing Mode | Conversion Time (Per Channel) | Sample Rate[1]1 If you are using fewer than all channels, the sample rate might be faster. The maximum sample rate = 1/(Conversion Time x Number of Channels), or 100 S/s, whichever is smaller. Sampling faster than the maximum sample rate may result in the degradation of accuracy. (All Channels[2]2 Including the autozero and cold-junction channels.) |
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High-resolution | 55 ms | 1 S/s |
High-speed | 740 μs | 75 S/s |
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High-resolution noise rejection (at 50 Hz and 60 Hz) | 60 dB | ||||||||||||||||||
Overvoltage protection | ±30 V between any two inputs | ||||||||||||||||||
Differential input impedance | 78 MΩ | ||||||||||||||||||
Input current | 50 nA | ||||||||||||||||||
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Offset error from source impedance | Add 0.05 μV per Ω, when source impedance >50 Ω | ||||||||||||||||||
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MTBF | 852,407 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method |
Temperature Measurement Accuracy
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The following figures show the errors for each thermocouple type when connected to the NI-9213 with the autozero channel on. The figures display the maximum errors over a full temperature range and typical errors at room temperature. The figures account for gain errors, offset errors, differential and integral nonlinearity, quantization errors, noise errors, 50 Ω lead wire resistance, and cold-junction compensation errors. The figures do not account for the accuracy of the thermocouple itself.
Power Requirements
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Physical Characteristics
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Dimensions | Visit ni.com/dimensions and search by module number. |
Black Connector
The NI-9213 (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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Black/Orange Connector
The push-in spring style NI-9213 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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Environmental Characteristics
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Ingress protection | IP40 | ||||||||||||
Pollution Degree | 2 | ||||||||||||
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To meet these shock and vibration specifications, you must panel mount the system.
NI-9213
(Black Connector) Safety Voltages
Connect only voltages that are within the following limits:
Between any two terminals | ±30 V maximum | ||||||||||||
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NI-9213
(Black/Orange Connector) Safety Voltages
Connect only voltages that are within the following limits:
Channel-to-channel | None | ||||||
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Calibration
Calibration interval | 1 year |
Conditions
Specifications are valid under the following conditions unless otherwise noted.
- Ambient temperature range -40 °C to 70 °C
- 15 minutes of warm-up time
1 If you are using fewer than all channels, the sample rate might be faster. The maximum sample rate = 1/(Conversion Time x Number of Channels), or 100 S/s, whichever is smaller. Sampling faster than the maximum sample rate may result in the degradation of accuracy.
2 Including the autozero and cold-junction channels.
3 Measurement sensitivity represents the smallest change in a temperature that a sensor can detect. It is a function of noise. The values assume the full measurement range of the standard thermocouple sensor according to ASTM E230-87.