Key facts
- Brand
- Spectrex
- Model
- Quasar 900
- Documents
- 3
- Languages
- EN
- Last added
- 2023-10-16
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Spectrex Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual
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.
Read onlineSpectrex Quasar 900 specifications
| 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) |
Source: Spectrex Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual
All Spectrex Quasar 900 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Is the Quasar 900 field-repairable?
No, the Source and Detector are not field-repairable due to the meticulous alignment and calibration of the sensors and circuits.
From: Spectrex Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual
What is the maximum number of detectors in a Modbus network?
A single standard Modbus controller can communicate with a serial Network of up to 247 Detectors.
From: Spectrex Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual
How often should the optical surfaces be cleaned?
The optical surfaces of the detector and source should be cleaned once a month.
From: SPECTREX WinHost Configuration and Diagnostic Software Quasar 900 Gas Detector User Guide
When should alignment and calibration be performed?
Alignment and calibration should be performed once every six months, or after each time the units are moved or opened.
From: SPECTREX WinHost Configuration and Diagnostic Software Quasar 900 Gas Detector User Guide
Is the Quasar 900 field-repairable?
No, the Source and Detector are not field-repairable due to the meticulous alignment and calibration of the sensors and circuits.
From: Spectrex Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual
What is the maximum detection distance for the Quasar 904 model?
The maximum installation distance for the Quasar 904 model is 660 ft (200m).
From: Spectrex Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual