The manual introduces the function and use of the Spectrex Quasar 900 open-path gas detection system
The Spectrex Quasar 900 Open-Path Gas Detection System is designed for the simultaneous detection of C1-C8 flammable gases. The system utilizes a flash source and a detector unit to measure gas concentrations over a distance, with detection ranges varying by model from 23 feet to 265 feet. It features a microprocessor-based design with spectral response between 2.0 and 3.0 microns.
| Detected Gases | Simultaneous detection of C1-C8 flammable gases |
|---|---|
| Response Time | 3 sec to T90 |
| Spectral Response | 2.0 - 3.0 micron |
| Operating Voltage | 18-32 VDC |
| Communication Protocol | Modbus RS-485 |
| Temperature Range | -67°F ( -55°C) to +149°F (+65°C) |
No, the Source and Detector are not field-repairable due to the meticulous alignment and calibration of the sensors and circuits.
A single standard Modbus controller can communicate with a serial Network of up to 247 Detectors.