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The SeaDAC Lite 8112 is a USB-based data acquisition module that features four optically isolated digital inputs and four Form C (SPDT) relay outputs, offering reliable signal monitoring and high-current switching through a compact, rugged USB interface. Ideal for industrial automation, control panels, and custom system integration..
Model 8112 from the SeaDAC Lite series enables robust USB I/O interfacing, combining input isolation and power switching in a compact form factor. The isolated inputs offer enhanced protection against surges, while the Form C relays allow flexible control of high-current loads in either normally open or normally closed configurations.
It uses 3.5mm removable terminal blocks for simplified field wiring and includes a USB Type B SeaLATCH locking connector that prevents accidental disconnection. The enclosure is durable enough for industrial environments, and installation is seamless with Sealevel’s SeaMAX software suite, which provides GUI and API-based control across platforms.
This unit is perfect for engineers needing reliable I/O control in automation, test benches, equipment triggering, and more.
4 Optically Isolated Inputs (5–30 VDC) with 3500 VDC protection
4 SPDT Form C Relays rated for up to 6 A at 250 VAC / 5 A at 60 VDC
SeaLATCH USB Port for secure locking connections
Status LEDs for visual indication of I/O activity
Rugged plastic enclosure for mounting on walls or panels
USB Bus Powered – no external power supply needed
Fully supported by SeaMAX software (Windows and Linux)
Compatible with third-party applications via the SeaMAX API
| Parameter | Value |
|---|---|
| Model Number | 8112 |
| Inputs | 4 Optically Isolated, 5–30 VDC |
| Input Isolation | 3500 VDC (2500 VAC RMS) |
| Outputs | 4 Form C Relays (SPDT) |
| Relay Ratings | 6 A @ 250 VAC, 5 A @ 60 VDC |
| Relay Configuration | NO or NC wiring, individual commons |
| USB Interface | USB 1.1 Compliant, USB 2.0 Compatible |
| Connector | SeaLATCH USB Type B (locking) |
| Power | USB powered, +5 V @ 500 mA |
| Enclosure | Rugged plastic (wall/panel mountable) |
| Dimensions | 4.3" (L) x 3.4" (W) x 1.3" (H) |
| Operating Temp | 0°C to +70°C (Extended: -40°C to +85°C optional) |
| Storage Temp | -50°C to +105°C |
| Humidity | 10–90% RH, non-condensing |
| Software Support | SeaMAX (Windows, Linux), API compatible |