OPT-SNAP-AIMA-i

SNAP-AIMA-i SNAP 2-Ch Isolated -20 mA to +20 mA Analog Current Input Module

The SNAP-AIMA-i provides two isolated channels of -20 mA to +20 mA analog current input. The module does not
supply loop excitation current. In addition to having two channels isolated from each other, the module is also
transformer isolated and optically isolated from other modules and devices.
 
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted
controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for
PC-based control or for use as intelligent remote I/O for an Allen-Bradley RSLogix PLC system, such as ControlLogix,
MicroLogix, or CompactLogix.
 
If you also need built-in loop sourcing, see SNAP-AIMA-iSRC.
 
If you do not need channel-to-channel isolation, see SNAP-AIMA.
 

Input Range	-20 mA to +20 mA
Maximum Over Range	± 10% (= ± 27500 counts)
Resolution	0.8 µA
Input Response Time (% of span/delta I/delta time)	99.9 %/19.9 µA/10 ms
DC Common Mode Rejection	>-120 dB
AC Common Mode Rejection	>-120 dB @ 60 Hz
Maximum Survivable Input	36 mA or 9 VDC
Maximum Operating Common Mode Voltage	250 V
Accuracy	0.05% (10 µA)
DRIFT: Gain Temperature Coefficient	30 PPM/ °C
DRIFT: Offset Temperature Coefficient	15 PPM/ °C
Isolation: Optical	4000 V
Isolation: Transformer	1500 V
Isolation: Channel to Channel	250 V continuous (1500 V transient)
Power Requirements	5 VDC (±0.15 ) @ 200 mA
Input Resistance	200 ohms (each channel)
Ambient Temperature:   Operating   Storage	0 °C to 70 °C -25 °C to 85 °C
Torque, hold-down screws	4 in-lb (0.45 N-m)
Torque, connector screws	5.26 in-lb (0.6 N-m)
Agency Approvals	UL, CE, FM, RoHS, DFARS
Warranty	Lifetime

Rev: 04/13