EMS GuardianSmoke Opacity Detector
Key Features:
- The EMS Guardian is purpose-built to detect smoke emissions and energize a relay at a user-selected set point. With selectable options of approximately 5%–20% opacity, you can adapt it to the requirements of your process.
- Two relay contacts provide a rapid response to changing smoke opacity levels.
- Monitor smoke opacity across optical paths from 2 to 8 feet.
- The custom digital PC board incorporates automatic calibration and dust compensation to help maintain consistent performance over time.
- The modulated green LED source is designed to remain unaffected by ambient light conditions.
- A custom-selected detector supports dependable smoke opacity measurement.
- A universal 12V supply, standard 1-inch pipe mounting and the ability to use existing ports make the Guardian a practical replacement for older smoke detectors.
- The Guardian includes a 1-year manufacturer’s warranty and a 5-year LED warranty.
- EMS has manufactured industrial opacity and dust monitoring equipment since 1990.
Guardian Smoke Opacity Detector Specifications
| Monitoring purpose | Visible smoke opacity detection and alarm control |
|---|---|
| Selectable opacity set point | Approximately 5%–20% opacity |
| Optical path length | 2–8 ft |
| Alarm outputs | Two relay contacts |
| Light source | Electronically modulated green LED |
| Compensation | Automatic calibration and dust compensation |
| Power | Universal 12V supply |
| Mounting | Standard 1-inch pipe; designed to use existing ports when suitable |
| Warranty | 1-year manufacturer warranty; 5-year LED warranty |
Applications for the Guardian Smoke Detector
The EMS Guardian is designed for equipment and processes that need a straightforward smoke opacity alarm rather than a full regulatory continuous emissions monitoring system. Typical uses include cremation equipment, crematory and crematorium exhaust stacks, industrial incinerators, combustion equipment, replacement of older smoke detectors, and processes that need a relay response at a selected visible-smoke level.
Frequently Asked Questions
What does the EMS Guardian measure?
It detects visible smoke opacity across the process opening and activates relay contacts when opacity reaches the selected alarm set point.
Can the alarm level be adjusted?
Yes. The Guardian offers selectable set-point options of approximately 5%–20% opacity.
What path lengths can it monitor?
The emitter and detector can be configured for optical paths from 2 to 8 feet.
Can the Guardian replace an older smoke detector?
Its 12V supply and standard 1-inch pipe mounting are intended to simplify replacement installations. EMS can review your existing ports and application before you order.
Guardian Documents and Product Support
Download the EMS Guardian data sheet, compare the Guardian with other EMS opacity monitoring systems, or contact EMS for application guidance and a quotation.
