OI-WF690
2.4GHz radio option now available
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To View the OI-WF690 Informational Video, click HERE.
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The Otis Instruments, Inc. WireFree Model OI-WF690 Sensor Unit is an innovative wireless gas detection system designed to monitor gas in hostile environments without the use of wires or conduit from the controller to the sensor.
The OI-WF690 Sensor Units's key feature is non-intrusive calibration. With all adjustments made at the sensor assembly, one-man non-intrusive calibration is quick, easy, and allows the device to remain Class I, Division 1, Group C and D certified while in the field.
The device is self-contained and battery operated. The sensor functions by transmission of radio wave messages to the OI-WF784, OI-WF752, OI-WF985, or OI-7010 (or any receiving controller) every minute when there is no gas present, and every five seconds when gas is present (and above the background gas level setting).
The device is field adjustable for background gas, and addressable to eliminate interference with other systems. Since each system's address is field adjustable, any OI-WF690 sensor may be used as a replacement.
Features such as the auto-setting Null, relay/alarm tests and battery voltage indication make this device a truly remarkable gas detection system.
For a complete list of spare/replacement parts for this product, click on the "Spare Parts" link located under OI-WF690 on the left sidebar of this page.
| Attachment | Size |
|---|---|
| OI-WF690 2.2 Data Sheet.pdf | 208.05 KB |
| OI-WF690 Data Sheet Spanish 2_0.pdf | 223.04 KB |
| OI-WF690-O Operation Manual - 2.3w.pdf | 954.02 KB |
| OI-WF690-M Operation Manual - 2.2w.pdf | 811.6 KB |
| OI-WF690-K Operation Manual 2.2 Killark.pdf | 818.32 KB |
| OI-WF690 Operation Manual 2.0 Spanish.pdf | 827.75 KB |