The NI ‑ 9215 module is used for differential analog acquisition. It has a NIST-compliant calibration certificate and double insulation from ground, which ensures increased operational reliability, noise immunity and a high common-mode voltage range. The module is offered in two versions: with screw connection (10-pin) or BNC connector.
 Product features:
-  Maximum number of ground-related analog input channels: 0
-  Maximum number of differential analog input channels: 4
-  Voltage measuring range of the analog input: -10 V to 10 V.
-  Maximum sampling rate: 100 kS / s per channel
-  Simultaneous sampling: Yes
-  Resolution of the analog input: 16 bit
-  Connection type front: spring terminal
-  Isolation of the analog input: 250 Veff Isolation of the channel from ground
-  Protective coating: no
-  With housing: yes
-  Supported hardware platform: CompactDAQ, CompactRIO