forede®'s ZDMS0.8-EX-W Series is an explosion-proof automatic fire monitor, engineered for hazardous environments (like chemical plants, oil depots, and flammable material storage zones) where safety compliance and intelligent suppression are critical.
Crafted from hard anodized aluminium alloy, it carries an Exd II BT4GB explosion-proof rating-certifying safe operation in flammable atmospheres. Key features include laser positioning indication, high-definition screen monitoring, selectable nozzles (straight stream & fog, or straight stream-only), and electric control for jetting pattern switches. Its electric driver and control unit box are waterproof, with an optional 220V AC power supply, and it supports three control modes: automatic, control-box, and on-site manual.
The series offers two variants:
- ZDMS0.8/20EX-W: 1200 LPM flow rate, 56m jetting radius, 50m max protection radius
- ZDMS0.8/30EX-W: 1800 LPM flow rate, 62m jetting radius, 55m max protection radius
Shared specs across models: 8 bar working pressure, 360° horizontal rotation, -90° to +30° vertical travel, 80m monitoring radius, 8-15m mounting height, ≤60s targeting time, 2.5" BS flange inlet (other sizes/standards optional), image & UV sensor detection, RS485 communication, and low power consumption (1W for monitoring, 50W for detecting).
Blending explosion-proof safety with smart automatic tracking, the forede® ZDMS0.8-EX-W Series delivers reliable, compliant fire protection for high-risk hazardous areas.
Key Features
* Aluminium alloy construction,hard anodized;
* Constant Nozzle;
* 360° rotation horizontally;
* Electric control jetting Pattern: Straight stream ;
*Optional power supply 12V/24V DC(optional)
Key Users
* Fire & Rescue Services
* Oil & Gas
* Petrochemicals
* Fuel Storage Sites
* Major Industrials
* Aviation
| Model |
ZDMS0.8 /20EX-W |
ZDMS0.8 /30EX-W |
| Control |
Automatic, Control box, Field manual |
Automatic, Control box, Field manual |
| Working Pressure |
8 bar |
8 bar |
| Flow Rate |
1200 LPM |
1800 LPM |
| Jetting Radius |
56 m |
62 m |
| Max Protection Radius |
50 m |
55 m |
| Monitoring Radius |
80 m |
80 m |
| Mounting Height |
8~15 m |
8~15 m |
| Targeting Time |
≤60 S |
≤60 S |
| Swing Horizontally |
360° |
360° |
| Elevate Vertically |
-90° to +30° |
-90° to +30° |
| Inlet |
2.5" BS Flange, others size and std. available |
2.5" BS Flange, others size and standard available |
| Detector Type |
Image & UV sensor technology |
Image & UV sensor technology |
| Communication Mode |
RS485 |
RS485 |
| Power Consumption |
Monitoring 1W, Detecting 50W |
Monitoring 1W, Detecting 50W |
Installation Instructions
1. Laser Positioning and Monitoring
Q: How does the "laser positioning indication" work, and how does it enhance fire - targeting accuracy?
A: The laser emits a visible beam to mark the monitor's jet direction. It provides a clear, real - time reference for operators (or the automatic system) to align the stream with the fire, reducing targeting errors. In dark or smoke - filled environments, this visual guide is critical for precise, rapid engagement.
2. Nozzle Pattern Flexibility
Q: The nozzle offers "Straight stream & Fog or Straight Stream"-how to switch between these, and when is each pattern most effective?
A: Switch via the electric control system (automatic) or manual override. Straight stream penetrates fires and reaches long distances (ideal for large, open blazes). Fog cools hot surfaces, suppresses smoke, and protects assets (best for enclosed spaces or protecting equipment).
3. Explosion - Proof Certification (Exd II BT4GB)
Q: What does "Exd II BT4GB" mean, and where is this monitor legally permitted for use?
A: It's an explosion - proof rating: "Exd" = flameproof enclosure, "II B" = gas - group compatibility, "T4" = max surface temperature (≤135°C), "GB" = zone classification. Permitted in Zone 1/2 (gas - hazardous) and Zone 21/22 (dust - hazardous) areas, as per ATEX/IECEx standards.
4. Waterproof Electric Components
Q: The electric driver and control unit are waterproof-can they withstand prolonged immersion (e.g., in flooded areas)?
A: Waterproof ratings (e.g., IP67) protect against water jets/splashes, not prolonged immersion. In flooded zones, install the monitor above flood levels or use submersible enclosures. Consult the manufacturer for immersion - tolerance specs.
5. Power Supply Options
Q: With optional 220V AC power-what backup power solutions are compatible for continuous operation during outages?
A: Use uninterruptible power supplies (UPS) or 220V AC generators. Ensure the backup system matches the monitor's power consumption (monitoring 1W + detecting 50W) and provides clean, stable voltage to avoid component damage.
6. Automatic vs. Manual Control
Q: How seamless is the transition between "Automatic, Control box, Field manual" modes, and is training required?
A: Transitions are designed to be smooth-automatic mode activates via sensors, control - box mode offers remote manual control, and field - manual allows direct adjustments. Operators need training to understand mode priorities, sensor overrides, and safety protocols for manual interventions.
7. Image & UV Sensor Technology
Q: How do "Image & UV sensor technology" work together to detect fires, and what are their limitations?
A: Image sensors analyze visual patterns (e.g., flame shapes), while UV sensors detect ultraviolet radiation from fires. Together, they reduce false alarms (e.g., distinguishing sunlight from flames). Limitations: image sensors struggle in total darkness; UV sensors can be blinded by intense UV sources (e.g., welding arcs).
8. Mounting Height Impact
Q: The mounting height is "8-15 m"-how does this affect monitoring radius, jetting radius, and fire coverage?
A: Higher mounting extends monitoring/jetting radius (via line - of - sight and gravity - assisted flow) but requires stronger structural support. At 15 m, the 80 m monitoring radius and 56 m jetting radius (ZDM50.8/20EX - W) provide wide coverage, ideal for large industrial areas.
9. RS485 Communication Integration
Q: Using RS485 communication-how to integrate the monitor with a central fire - control system, and what data is transmitted?
A: RS485 enables two - way communication: the monitor sends status (e.g., position, alarm, power), and the system sends commands (e.g., start/stop, pattern change). Integrate via MODBUS or custom protocols; ensure baud rates/addresses match the system's requirements.
10. Power Consumption Efficiency
Q: "Monitoring 1W, Detecting 50W"-how does this impact energy costs, and can it operate on low - power budgets?
A: Low monitoring power (1W) minimizes standby costs. Detecting power (50W) is temporary (activates only when fires are detected). For low - power budgets, use timers to limit continuous detection or prioritize automatic mode (which triggers detection only on alarms).
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