INNOVATIVE
Dedicated Aspirating Smoke Detector For Cabinet Fire Detection

PINPOINT THE FIRE-RISK CABINET
The CSD is designed to protect a single cabinet. In case of fire, the affected cabinet can be identified immediately—no need to search from cabinet to cabinet.MINIATURE, COMPACT, INSTRUMENT DESIGN


BLUE LED DETECTION
- High Power Blue LED Light Source
- Wide Angle Nephelometer Mass Detection
- Maximum Detection Sensitivity 0.001%/m
- Maximum Alarm Sensitivity 0.005%/m

Multiple Function Display
- Smoke, Flow, Address, Event/Error Code
- 20 Segments Smoke Bargraph
- Alarm and Fault Indicators
- Reset/Isolate/Silence/Test Buttons
In the past, the most effective way to detect fires in electrical cabinets was by using an aspirating smoke detection system. In this setup, air samples from all protected cabinets are drawn back to a central detection unit through an aspirator and a network of sampling pipes connected to each cabinet. This allows the system to monitor for the presence of smoke inside the cabinets.
Although such a system can detect a fire at a relatively early stage, its limitation is that it cannot identify which specific cabinet is on fire. The user must manually open and inspect each cabinet to locate the source of the smoke.
Imagine a detection system protecting 60 cabinets with a single aspirating smoke detector. When an alarm is triggered, the user is faced with rows of enclosed high-voltage electrical cabinets—and must open and check each one to pinpoint the fire's origin. Meanwhile, the alarm keeps sounding, time is ticking, and the risk of explosion increases. The pressure on the user in this situation is immense.

Now, the innovative CSD Cabinet Smoke Detector from AVA PREVENT offers a compact, space-saving design specifically engineered for single-cabinet aspirating smoke detection.
The CSD integrates an aspirator, high-sensitivity smoke detector, display/control/programming panel, relays, and network interface—all within a miniature unit. It can be installed directly on each cabinet, allowing for precise detection and clear identification of alarm status.
With the CSD, users no longer need to search through multiple cabinets during a dangerous electrical fire. It provides fast, targeted detection, making it the ideal solution for cabinet fire protection.

Design Planning

The CSD Detector can be installed on the top of the cabinet or inside the cabinet.

When the CSD is installed on top of a cabinet, its built-in display directly shows the detection status of the protected cabinet below.

When the CSD is installed inside a cabinet, the display can be detached from the detector and mounted on the cabinet panel to indicate the detector’s status from outside.

Location of the Air Sampling Points
Air sampling points should be placed at the following locations where smoke is likely to accumulate in the event of a cabinet fire, to ensure the earliest possible detection.
- Exhaust Fan/Grill Sampling:When an exhaust fan or grill is used for cooling the components inside the cabinet, a sampling point should be installed at the exhaust outlet, as smoke is likely to appear at this location in the event of a fire.
- Compartment/Void Sampling:When a cabinet contains a separate compartment or void with fire risk, a sampling point should be installed in that compartment or void.


Sampling Pipe Limitation
- Sampling Tube: 10mm OD Capillary Tube
- Single Tube Length: Up to 12 m
- Two Branched Tube Length: Up to 2x10m
- No. of Sampling Hole: Up to 4
- Brass Sampling Hole Size: 3.5 mm

CSD Specifications |
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Items | CSD-100 | CSD-V | CSD-H10/H11 | |
Detection Light Source | High Power Blue LED | |||
Detection Principle | Forward Light Scattering | |||
Detection Sensitivity Range | 0.001~25 % obs/m | 0.02~25 %obs/m | ||
Alarm Sensitivity | 0.005~20 % obs/m | 0.8/1.6/3.2/4.8//6.4/8/10/10.5 %obs/m | ||
Alarm Level | 4 Stages (Alert, Action, Fire-1, Fire-2) | |||
Alarm and Fault Time Delay | 0~60 (Sec.) | |||
Sensitivity Switch | 2 (0.1~10) | |||
Flow Learning | 6 Flow Sensitivity Learning Mode | |||
Environment Smoke Learning | 15 / 60 / 120 / 240 / 480 minutes (Non-Stop) | |||
Fan Speed | 10 Steps Adjustable | |||
High Sensitivity Smoke Chamber | 1 | |||
High Efficiency Aspirator | 1 | |||
Flow Sensor | 1 | |||
Air Sample Inlet Port | 1 | |||
Air Sample Exhaust Port | 1 | |||
Two Stages Filter | External Filter (Optional) | |||
Local Display / Programmer | Numerical Value Display | Six Digit Numerical Display shows Smoke Level / Flow Level / Address / Event Code and Aux. Sensor Level (if fitted) |
NA | Four Digit Numerical Display shows Smoke Level / Flow Level / Address / Event Code /Temperature/Humidity and optional CO Level (H11) |
Bargraph | 20 seg. | NA | ||
Indicator LED | 10 (OK / Isolate / Alert / Action / Fire 1 / Fire 2 / Det'n / Flow / System /Aux.) | 4 (OK / Fault / Alert / Fire 1) | Status Bar (OK/Fault/Isolate/Smoke Alarm/Sensor Alarm) |
|
Control Buttons | 6 (Reset / Silence / Isolate / Test / Left / Right) | NA | 2 | |
Beeper | Yes | NA | Yes | |
Programmer | Full Function Setting | NA | Basic Function Setting | |
Remote Display / Programmer | Numerical Value Display | NA | Smoke Level / Flow Level / Address / Event Code and Aux. Sensor Level (if fitted) | |
Bargraph | 20 seg. | |||
Indicater LED | 10 (OK / Isolate / Alert / Action / Fire 1 / Fire 2 / Det'n / Flow / System / Aux.) | |||
Control Buttons | 6 (Reset / Silence / Isolate / Test / Left / Right) | |||
Beeper | Yes | |||
Programmer | Yes | |||
RS485 Network | Yes | |||
RS485 Repeater | NA | |||
General Purpose Input (GPI) | 1 (Configurable) | |||
Relay Output | 3 (Configurable) | 2 (Configurable) | ||
Zone Relay | NA | Optional IO Board (1GPI+3Relay) | ||
Auxilliary Sensors | Optional (Temp./Humidity and Gas Sensors) | TBA | Built in Temperature and Humidity Sensor Optional CO Sensor (H11) |
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Event and Data Logs | 3,000 | 180,000 | ||
Sampling Tube Length | Total Tube Length | 2 x 6m | 2 x 15m; 4 x 10m | 2 x 15m; 4 x 10m |
Single Tube Length | 6m | 30m | 30m | |
No. of Sampling Holes | Class A / VEWFD | 4 | 4 | 2 |
Class B / EWFD | 4 | 4 | 4 | |
Class C / SFD | 4 | 4 | 4 | |
Maximum Coverage | 100m² | 10m² | ||
Sampling Pipe Specification | OD/ID: Φ25/Φ21mm | OD/ID: Φ25/Φ21mm | ||
Capiliary Tube Specification | OD/ID: Φ10/Φ6.5mm | OD/ID: Φ8/Φ6mm | OD/ID: Φ8/Φ6mm | |
Operating Voltage | 24Vdc ±6 | 24Vdc ±6 | 24Vdc ±6 | |
Operating Current | 170mA | |||
Operating Temperature | 0~40 °C | |||
Sampling Air Temperature | -30~60 °C | |||
Operation Humidity | 0~95 %RH, Non-Condensing | |||
Dimensions (W x H x D) | 180 × 90 × 74mm | 135 x 105 x 74mm | ||
Weight | 800g | 1250g |