OdorEyes Gas Odorant
Monitor-Transmitter
The OdorEyes™ Monitor-Transmitter automatically measures the concentration of any commonly used mercaptan odorant in natural gas or vaporized LPG (liquified petroleum gas). An electrochemical sensor is exposed to a flowing sample at user selected intervals. The measurement signal can be recorded to verify the accuracy with which mercaptan has been added to odorless fuel by an odorizer system. The signal can also be used as a feedback to control the odorizer, thus assuring accurate odorization levels despite varying temperatures, pressures and pipeline flow rates.

During each sample sequence, gas flows through the sensor chamber for six minutes at 0.5 liters per minute. The mercaptan measurement is an average concentration compiled during the last minute of this sampling cycle. The latest reading is indicated by a four-digit display in pounds of mercaptan per million standard cubic feet of gas. It is also transmitted as a linear 4-20 mA DC signal with span of 0.25 to 2.0 lbs/MMscf. Programmable high and low alarm signals and a communications link using RS-485 and MODBUS protocol are also provided. With periodic calibration using a known gas, accuracy is ± 3% of full scale.

Portable Monitor Transmitter comes in an easy to carry, weather resistant carrying case.

Portable unit allows On-line verification of odorization levels.