NI-9217 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

Specifications are valid for the range -40 °C to 70 °C unless otherwise noted.

All specifications given in °C are specific to 100 Ω platinum RTDs.

NI-9217 Pinout



Table 1. Signal Descriptions
Signal Description
COM Common reference connection to isolated ground
EX Excitation source connection
RTD+ Positive resistance temperature detector connection
RTD- Negative resistance temperature detector connection

Input Characteristics

Number of channels

4 analog input channels

ADC resolution

24 bits

Type of ADC

Delta-sigma

Sampling mode

Scanned

Measurement range

Temperature

-200 °C to 850 °C

Resistance

0 Ω to 400 Ω

Common-mode range

COM-to-earth ground

±250 Vrms

Channel-to-COM

50 mV

Conversion time

High-resolution mode

200 ms per channel, 800 ms total for all channels

High-speed mode

2.5 ms per channel, 10 ms total for all channels

Temperature accuracy (including noise)[1]1 For high-speed mode, add a 0.1 °C error., 4-wire mode

Measured Value Typical (25 °C) Maximum (-40 to 70 °C)
-200 °C to 150 °C 0.15 °C 0.35 °C
150 °C to 850 °C 0.20 °C 1.0 °C

Temperature accuracy (including noise)1, 3-wire mode

Measured Value Typical (25 °C) Maximum (-40 to 70 °C)
-200 °C to 150 °C 0.20 °C 0.50 °C
150 °C to 850 °C 0.30 °C 1.0 °C
Noise

High-resolution mode

0.003 °C

High-speed mode

0.02 °C

Excitation current

1 mA per channel

Noise rejection
Normal mode (50/60 Hz)

High-resolution mode

85 dB minimum

High-speed mode

None

Common-mode rejection, channel to earth ground (50/60 Hz)

High-resolution mode

170 dB minimum

High-speed mode

155 dB

Input bandwidth (high-resolution mode)

3.3 Hz

Figure 1. High-Resolution Filter Response


Note This image is provided courtesy of Linear Technology Corp. High-speed filter response has the same characteristics as the high-resolution filter response except that the first notch is at 14 kHz.
Overvoltage protection

EX+ to COM

-20 V to 30 V

COM to COM

None

Any other pin-to-pin

±30 V

MTBF

891,597 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method

Safety Voltages

Connect only voltages that are within the following limits.

Isolation Voltages

Channel-to-channel

None

Channel-to-earth ground
Continuous

up to 2,000 m

250 V RMS, Measurement Category II

up to 5,000 m

60 V DC, Measurement Category I

Withstand

up to 2,000 m

2,300 V RMS,verified by a 5 s dielectric withstand test

up to 5,000 m

1,000 V RMS, verified by a 5 s dielectric withstand test

Measurement Category I

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

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.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Measurement Category II

Caution Do not connect the product to signals or use for measurements within Measurement Categories III or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.

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

Temperature

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Ingress protection

IP40

Pollution Degree

2

Maximum altitude

5,000 m

Shock and Vibration
Operating vibration

Random

5 g RMS, 10 Hz to 500 Hz

Sinusoidal

5 g, 10 Hz to 500 Hz

Operating shock

30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations

To meet these shock and vibration specifications, you must panel mount the system.

Power Requirements

Power consumption from chassis

Active mode

350 mW maximum

Sleep mode

1 mW maximum

Thermal dissipation (at 70 °C)

Active mode

350 mW maximum

Sleep mode

1 mW maximum

Physical Characteristics

Weight

142 g (5.0 oz)

Dimensions

Visit ni.com/dimensions and search by module number.

Screw-terminal wiring

Gauge

0.05 mm2 to 1.5 mm2 (30 AWG to 14 AWG) copper conductor wire

Wire strip length

6 mm (0.24 in.) of insulation stripped from the end

Temperature rating

90 °C minimum

Torque for screw terminals

0.22 N · m to 0.25 N · m (1.95 lb · in. to 2.21 lb · in.)

Wires per screw terminal

One wire per screw terminal; two wires per screw terminal using a 2-wire ferrule

Ferrules

0.25 mm2 to 1.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

Calibration

You can obtain the calibration certificate and information about calibration services for the NI-9217 at ni.com/calibration.

Calibration interval

1 year

1 For high-speed mode, add a 0.1 °C error.