Use the "Configure System" link above to configure an SCXI DAQ system based on this module.
The NI SCXI-1121 and SCXI-1122 modules are designed for a wide variety of sensor and signal inputs requiring isolation. The SCXI-1121 offers independently configurable isolation amplifiers, filters, and excitation sources for each channel. Both modules provide 250 Vrms working isolation and can acquire strain, RTD, thermocouple, millivolt, volt, 250 V, 0 to 20 mA, and 4 to 20 mA current input signals. In addition, they can multiplex their channels into a single channel of the DAQ device, and you can add modules to increase channel count. The SCXI-1121 also offers parallel-mode operation.
An SCXI chassis is required to house the SCXI modules. The NI SCXI-1000 chassis can hold up to four modules while the NI SCXI-1001 can hold up to 12. You can choose NI X Series, M Series, E Series, or S Series DAQ modules for controlling the chassis.
RTD
,
Strain/Bridge-based sensor
,
Thermocouple
,
Voltage
,
Current
,
Temperature
Isolation Type
Ch-Ch Isolation
RoHS Compliant
No
Signal Conditioning
0-20 mA current input
,
Cold-junction compensation
,
Voltage excitation
,
Low-pass filtering
Analog Input
Channels
4
,
0
Single-Ended Channels
0
Differential Channels
4
Sample Rate
333 kS/s
Bandwidth
10 kHz
Max Voltage
250 V
Maximum Voltage Range
-250 V
-
250 V
Minimum Voltage Range
-2.5 mV
-
2.5 mV
Simultaneous Sampling
Yes
Input Impedance
1 GOhm
Available Filters
10 kHz
,
4 Hz
Excitation Current
0.15 mA
Bridge Configurations
Half Bridge
,
Full Bridge
,
Quarter Bridge
Analog Output
Channels
0
Digital I/O
Bidirectional Channels
0
Input-Only Channels
0
Output-Only Channels
0
Counter/Timers
Counters
0
Physical Specifications
Length
20.3 cm
Width
17.3 cm
Height
3 cm
I/O Connector
Screw terminals
Minimum Operating Temperature
0 °C
Maximum Operating Temperature
50 °C
Minimum Storage Temperature
-20 °C
Maximum Storage Temperature
70 °C
Timing/Triggering/Synchronization
Triggering
Digital
,
Analog
Triggers cDAQ Chassis
No
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Extended Warranties
National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:
Significant cost savings compared to individual repair incidents
Fault location, diagnostics, and repair by NI any time the system product fails
All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications
NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.
Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.
