• Quick Summary

The EA318 Series comprises high-reliability, EN 54-5/7 certified commercial fire protection devices, including 2-wire/4-wire optical smoke detectors and combined smoke & heat multi-sensors. Utilizing Advanced Photoelectric Technology and fixed-temperature sensors (57°C), this series extends detection capabilities, minimizes false alarms, and provides selectable relay outputs (N/O or N/C) for versatile security and fire system integration.

 

• Key Features & Benefits

Advanced Technology: Combines photoelectric smoke sensing with fixed temperature heat detection (135°F / 57°C) to prevent false alarms.

Full Visibility: Dual LEDs provide a complete 360-degree visual alarm status.

Flexible Integration: Selectable N/C (Normal Close) or N/O (Normal Open) form A/B relay outputs for 4-wire systems.

Long-Term Reliability: 100%-unit factory calibration.

Compliance: Fully compliant and approved under the EN 54-5/7:2000 standard.

 

• Product Range & Model Comparison

2-Wire Models (Operating Voltage: 12–35V DC).

EA318-2: Standard 2-wire optical smoke detector. (Base: P/N852001).

EA318-2-LED: 2-wire optical smoke detector featuring remote LED indicator output. (Base: P/N854001).

EA318-2H: 2-wire multi-sensor (smoke and 57°C heat). (Base: P/N852001).

EA318-2H-LED: 2-wire multi-sensor (smoke and 57°C heat) with remote LED indicator output. (Base: P/N854001).

4-Wire Models (With Form A/B Alarm Contacts, Base: P/N854001).

EA318-4-12: 4-wire optical smoke detector; operates at 12V DC (10.2~13.8V).

EA318-4-24: 4-wire optical smoke detector; operates at 24V DC (20.4~27.6V).

EA318-4H-12: 4-wire multi-sensor (smoke & 57°C heat); operates at 12V DC (10.2~13.8V).

EA318-4H-24: 4-wire multi-sensor (smoke & 57°C heat); operates at 24V DC (20.4~27.6V).

 

• Technical Specifications

Standards & Approvals EN 54-5 / 7:2000.

Detection Coverage Smoke sensor: 70 m² rating / Heat sensor: 50 m² rating.

Thermal Alarm Point 135°F (57°C) — Multi-sensor models only.

Standby Current (Max) 35 µA.

Surge Current (Max) 40 µA.

Start-Up Current (Max) 70 µA.

Start-Up Time (Max) 60 seconds.

Permissible Current(Max) 80 mA.

Detection Duty Cycle 3 to 5 seconds.

Alarm Current (Max) 2-Wire models: 70 mA / 4-Wire models: 35 mA.

Alarm Impedance 100 Ω + 3V max; 560 Ω + 3V max (Red LED open circuit).

Reset Parameters Voltage: Less than 1 Volt / Time: Less than 1 second.

Alarm Indicator Continuously emitting red LED light.

Alarm Contact Rating For 4-wire models (N/O or N/C): 1.0 A @ 30Vdc / 0.5 A @ 125 Vac.

Remote Output 15 mA max., diode gate.

Operating Temperature -10°C to +50°C.

Operating Humidity 0% to 95% RH, non-condensing.

Dimensions & Weight 10 mm (D) x 46 mm (H) with base / 130g per set with base.

 

• Optional Configurations

Security Integration: EA-318-AR line features Auto Reset (AR) function for security control panels.

Audible Alert: EA-318-B line comes equipped with an internal buzzer.

Base Variations: Standard base or Schottky diode base options available.

OEM Services: EN54 Multiple Listing service available upon request.

 

• Frequently Asked Questions

Q1: What is the main difference between EA318 smoke detectors and multi-sensors?

A: The standard EA318 smoke detectors use Advanced Photoelectric Technology to sense airborne smoke particles. The EA318 Multi-sensors (models with "H") integrate both the photoelectric smoke sensor and a fixed-temperature heat sensor (triggered at 135°F / 57°C) to expand fire detection capabilities and greatly reduce false alarms.

Q2: What are the voltage and wiring options for the EA318 series?

A: The series offers 2-wire models that operate on a wide range of 12~35V DC, and 4-wire models tailored for specific system voltages—either 12V DC (10.2~13.8V) or 24V DC (20.4~27.6V) with selectable N/O or N/C relay alarm contacts.

Q3: What is the maximum detection area coverage for the EA318 series?

A: According to technical ratings, the smoke sensor provides a coverage area of up to 70 m², while the integrated heat sensor on multi-sensor models covers up to 50 m².

 

• Contact Manufacturer & Sales Support

Company: Everday Technology Co., Ltd.

Email Support: sales.everday@everday.com

Phone: +886-3 9906099 (Extension 1308 / 1307)