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| Stand Alone gas monitors  New Stand Alone Sensor from Delphian includes Delphian's SensorSaver Transmitter which is epoxy coated for complete environmental protection. This puts sensor power regulation and support electronics where it counts - at the sensor location. Otherwise, sensor performance can be degraded by changes in electrical resistance caused by moisture, corroded terminals, splices or loose contacts in the wires between the sensor and controller. Delphian's Stand Alone Sensor ensures that power to and the signal from the sensor are not degraded and therefore guarantees maximum sensor performance and reliable sensor signals.Delphian's Stand Alone Sensors can be used with virtually any controller, datalogger or computer-based data management systems that accepts a 4-20 mA input. Three wires are needed between the user's power supply and controller and the Delphian Stand Alone Sensor. Shielding is normally not required since RFI and surge protection circuitry are built into the Stand Alone Sensor. The Delphian Stand Alone Sensor is calibrated by one person at the sensor location. Nothing is done at the controller. When the Delphian remote calibration meter is plugged into the Stand Alone Sensor the signal is disrupted so that user alarm circuits are automatically disabled for that sensor only. Other detection points remain in service. Delphian's Sensor Saver Transmitter guarantees constant temperature sensor operation, assuring long and stable sensor life even in continuous high ambient temperatures or gas concentrations. Sensor burn-out is eliminated, zero and span drift are negligible. Sensor Saver delivers maintenance and calibration cost savings. write your comments about the article :: © 2006 Construction News :: home page |