OI-744
The Otis Instruments, Inc. ProSafe 4x4 Model OI-744 is a four channel gas monitor that functions as a transmission controller. The OI-744 monitors toxic, combustible and oxygen gas levels in ambient air by receiving and displaying 4-20mA signals from wired sensor assemblies.
The OI-744 features a 4-digit display and is equipped with four independent 10 Amp alarm relays that are full-scale adjustable: two DC-only relays and two dry contact relays. The OI-744 operates with either 12-24 Volts DC or 11 Volts AC power-in and includes an Otisbus output with optional real-time monitoring software.
The ability to display data and activate alarms in relation to transmissions sent from on-site sensors make the OI-744 a truly phenomenal product in the safety realm of the gas industry.
| Attachment | Size |
|---|---|
| OI-744 Data Sheet 1.1 - 03232011.pdf | 1.45 MB |
| OI-744 Operation Manual 1.4w - Web Version - 03222011.pdf | 1.32 MB |
| OI-744 Otisbus Protocol Specifications 1.1.pdf | 226.75 KB |