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English | SNAP-AIRATE SNAP 2-Ch 0-25,000 Hz Analog Rate Input Module |
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Ohm pull-up resistor are provided internally for use with devices that have open collector outputs. The module works
with TTL, CMOS, and open collector outputs and is ideally suited for use with a tachometer.
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.
| Nominal Input Range | 0 to 25,000 Hz |
| Input Over-Range | To 27,500 Hz |
| Resolution | 1 Hz |
| Input Response Time(% of span / delta Hz / delta time) | 10.0% / 2,500 Hz / 0.1 sec 63.2% / 15.8 K Hz / 0.9 sec 99.0% / 24.75 K Hz / 4.2 sec |
| Data Freshness (Max) | 126 ms |
| DC Common Mode Rejection | >-120 dB |
| AC Common Mode Rejection | >-120 dB at 60 Hz |
| Maximum Operating Common Mode Voltage | 250 V |
| Accuracy (% full scale) | ±4 Hz or ±0.5% of the input frequency (whichever is greater) |
| DRIFT: Gain Temperature Coefficient | 200 ppm/ °C |
| DRIFT: Offset Temperature Coefficient | 50 ppm/ °C |
| Input Coupling | Single-ended AC (capacitor coupled) |
| Input Amplitude Sine wave Square wave | 2.5 V to 24 V p-p 0.5 V to 24 V p-p |
| Minimum Pulse Width | 18 microseconds |
| Input Impedance (Inputs share the same reference point.) Pull-up Voltage Pull-up Resistor | 50 K ohms AC coupled (-input to +input) 6 to 9 V 4.7 K ohms |
| Isolation | 1500 V |
| Power Requirements | 5 VDC (±0.15 ) at 190 mA |
| Operating Temperature | 0 °C to 70 °C |
| Storage Temperature | -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, FM, CE, RoHS, DFARS |
| Warranty | Lifetime |