Startup
The DPC3500 was calibrated before it was shipped from Super Systems, Inc. After the unit is properly installed (see “Wiring Connections” and “Sample Cell Installation”), power can be applied immediately. The flow meter on the Remote Mounting Assembly should be adjusted to provide approximately 5 to 10 SCFH of sample gas to the sensor. The rate of sample flow does not have any impact on the measured dew point, but a higher flow rate will result in a faster response time.
At the time of installation, the sensor will be reading the ambient dew point. It will take between 3 and 6 hours of immersion in the sample stream for the unit to thoroughly “dry out” the sensor before it stabilizes at the correct readings. This delay is only at initial startup when the system is installed for the first time. The unit is intended to operate with a constant, steady stream of sample gas continuously bathing the sensor. This will prevent the sensor from absorbing moisture from ambient air, and will allow for continuous real-time monitoring of the sample stream.