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USER GUIDE
SCC-AI Series Isolated Analog
Input Modules
The SCC-AI Series isolated analog input modules (SCC-AIXX) can extract
a relatively low-amplitude input signal from a high-common-mode voltage
so the E Series DAQ device can measure the input signal. They also can
amplify and filter the input signal, resulting in higher measurement
resolution and accuracy.
SCC-AIXX modules are available in a range of gains from 0.2 to 200. They
contain lowpass filters of either 10 kHz or 4 Hz bandwidth. Table 1-1 gives
the gain and bandwidth for each module.
Table 1-1. SCC-AIXX Module Input/Output Range, Gain, and Bandwidth
Model
Input Range
±42 V
SCC-AI01
±20 V
SCC-AI02
±10 V
SCC-AI03
±5 V
SCC-AI04
±1 V
SCC-AI05
±100 mV
SCC-AI06
±50 mV
SCC-AI07
±10 V
SCC-AI13
±5 V
SCC-AI14
Output Range
Gain
±8.4 V
0.2
±10 V
0.5
±10 V
1
±10 V
2
±10 V
10
±10 V
100
±10 V
200
±10 V
1
±10 V
2
Bandwidth
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
4 Hz
4 Hz
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Related Manuals for National Instruments SCC-AI Series
Summary of Contents for National Instruments SCC-AI Series
- Page 1 USER GUIDE SCC-AI Series Isolated Analog Input Modules The SCC-AI Series isolated analog input modules (SCC-AIXX) can extract a relatively low-amplitude input signal from a high-common-mode voltage so the E Series DAQ device can measure the input signal. They also can amplify and filter the input signal, resulting in higher measurement resolution and accuracy.
- Page 2 SC-2345 SC-2345 refers to both the SC-2345 connector block and the SC-2345 configurable connector. SCC refers to any SCC series signal conditioning module. SCC-AI Series Isolated Analog Input Modules ni.com...
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Page 3: What You Need To Get Started
Wire insulation strippers ❑ NI-DAQ (current version) for Windows 2000/NT/XP/Me Note Software scaling of measurements is not supported on the Macintosh operating system. Refer to the SCC-AIXX Module Pin Assignments section. © National Instruments Corporation SCC-AI Series Isolated Analog Input Modules... -
Page 4: Device Specific Information
The SCC-AIXX provides channel-to-ground and module-to-module isolation only. It does not provide isolation between the two channels of the SCC-AIXX. Because both channels must have the same reference voltage, pins 1 and 3 are connected together internally. SCC-AI Series Isolated Analog Input Modules ni.com... - Page 5 – 10–100 kΩ AI SENSE AI SENSE AI GND on SC-2345 terminal block Lowpass AI ( X +8) Filter – Figure 1-2. Nonreferenced Signal Connection for the SCC-AIXX (One Channel) © National Instruments Corporation SCC-AI Series Isolated Analog Input Modules...
- Page 6 E Series DAQ device is scaled by the gain given in Table 1-1, you must divide the voltage reading returned by the E Series DAQ device by this gain to get the correct input voltage. SCC-AI Series Isolated Analog Input Modules ni.com...
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Page 7: Gain Adjustment
SCC-AIXX and record the value. Input 0 VDC to the SCC-AIXX. Use the E Series DAQ device to read that channel and record the value. Subtract the values read (first reading – second reading). © National Instruments Corporation SCC-AI Series Isolated Analog Input Modules... -
Page 8: Offset Voltage Adjustment
If the value read is not equal to 0.00 V, adjust the appropriate trimpot located on the top of the SCC-AIXX, labeled Offset. Turn the trimpot clockwise to increase the offset. Repeat steps 4 and 5 until the voltage read in step 4 equals 0.00 V. SCC-AI Series Isolated Analog Input Modules ni.com... -
Page 9: Specifications
The SCC-AIXX does not provide isolation between the two channels of the module. For more information, refer to the Connecting the Input Signals section. This specification is calculated relative to the input range of the module. © National Instruments Corporation SCC-AI Series Isolated Analog Input Modules... -
Page 10: Power Requirement
Maximum altitude........2,000 m Pollution Degree (indoor use only) ..2 The SCC-AIXX does not provide isolation between the two channels of the module. For more information, refer to the Connecting the Input Signals section. SCC-AI Series Isolated Analog Input Modules ni.com... -
Page 11: Electromagnetic Compatibility
Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance information. To obtain the DoC for this product, visit , search by model number or product line, and click the ni.com/hardref.nsf appropriate link in the Certification column. © National Instruments Corporation SCC-AI Series Isolated Analog Input Modules... - Page 12 SCC-AIXX Module Pin Assignments Figure 1-4 shows the I/O connector pins on the bottom of the module. 1 Pin 1 Pin 2 PWB Key Pin 19 5 Pin 20 Figure 1-4. SCC Module Bottom View SCC-AI Series Isolated Analog Input Modules ni.com...
- Page 13 *371066B-01* Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.
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