Deutsch 
English | SNAP-AITM SNAP 2-Ch Type E, J, K Thermocouple or -150mV to +150mV Analog Input Module |
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mV DC or -75 to +75 mV DC, or for type E, J, or K thermocouple operation. Use isolated probes for thermocouple inputs.
Although the two channels are not isolated from each other, the module is 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.
For a similar module offering eight channels, see SNAP-AITM-8.
For a similar module with channel-to-channel isolation, see SNAP-AITM-i.
| Input Range | From -150 mV to +150 mV From -75 mV to +75 mV |
| Over-Range Limits | From -165 to +165 mV |
| Resolution | 6 microvolts from -150 to +150 mV 3 microvolts from -75 to +75 mV |
| Cold Junction Temperature Compensation | Automatic when used with SNAP I/O processors |
| Input Filtering | -3 dB @ 7 Hz |
| Input Response Time (% of span/delta V/delta time) | 63.2%/95 mV/23 mS |
| Data Freshness (Max) | 167 ms (+/-150 mV) 334 ms (+/-75 mV) |
| DC Common Mode Rejection | >-120 dB |
| AC Common Mode Rejection | >-120 dB @ 60 Hz |
| Maximum Survivable Input | ±15 volts |
| Maximum Operating Common Mode Voltage | 250 V |
| Accuracy at Full Scale | 0.06% (90 microvolts) @ 150 mV 0.1% (75 microvolts) @ 75 mV |
| DRIFT: Gain Temperature Coefficient | 5 microvolts / °C |
| DRIFT: Offset Temperature Coefficient | 2 microvolts / °C |
| Thermocouple Accuracy [°C] From factory After user gain and offset commands | ±2.0 (E, J, and K) ±0.8 |
| Isolation | 1500 V |
| Power Requirements | 5 VDC (±0.15 ) @ 170 mA |
| Input Resistance | 100 Megohms (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 | 3 in-lb (0.34 N-m) |
| Agency Approvals | FM, CE, RoHS, DFARS |
| Warranty | Lifetime |