GST DI-9103E Intelligent Rate of Rise and Fixed Temperature Heat Detector

GST DI-9103E Intelligent Rate of Rise and Fixed Temperature Heat Detector

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The GST DI-9103E is an addressable thermal heat detector featuring programmable operating modes (A1R, A2S, and BS), electronic addressing, 360-degree LED indication, and LPCB EN 54-5 approval.

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Description

The GST DI-9103E is an open-area intelligent addressable heat detector engineered for commercial, industrial, and institutional fire protection systems. Equipped with an internal thermistor sensor and MCU processing algorithms, the detector continuously analyzes ambient temperature variations to provide fast, false-alarm-resistant response in locations where dust, steam, or smoke prevent optical smoke detector deployment. It operates across a 16V to 28V DC supply range via the GST addressable loop protocol. The unit features three field-programmable sensitivity modes (Class A1R rate-of-rise plus fixed heat, Class A2S static fixed heat, and Class BS high-temperature static fixed heat), electronic handheld addressing, a 360-degree LED status indicator ring, remote indicator output support, and full LPCB EN 54-5 certification.

Features

  • Programmable Detection Modes: Supports 3 field-selectable operational classes (A1R rate-of-rise at 58°C, A2S fixed at 62°C, and BS high fixed at 77°C) to customize response behavior for different fire risks.
  • Electronic Soft Addressing: Quickly programmed using a handheld electronic programmer (P-9910B) across a code range from 1 to 242, eliminating physical DIP switches or rotary dials.
  • 360-Degree LED Indication: Centrally integrated red status LED provides omnidirectional visual status, flashing during normal polling cycles and illuminating solid during alarm states (polling flash can be turned off via programmer).
  • Magnetic Reed Switch Testing: Includes an internal reed switch for fast, non-destructive magnetic field testing during routine system inspections.
  • Remote Indicator Support: Features polarity-sensitive output terminals to power external remote LED indicators in concealed ceiling voids or locked rooms.

Specifications

  • Brand Name: GST (Gulf Security Technology)
  • Model: DI-9103E
  • Type: Intelligent Addressable Rate of Rise and Fixed Temperature Heat Detector
  • Operating Voltage: 24V DC (16V to 28V DC Loop Powered)
  • Standby Current: ≤ 0.6 mA
  • Alarm Current: ≤ 1.5 mA (Without remote indicator) / ≤ 3.5 mA (With remote indicator)
  • Programmable Detection Classes: Class A1R (Rate-of-Rise 58°C), Class A2S (Fixed Temp 62°C), Class BS (Fixed Temp 77°C)
  • Operating Temperature: -10°C to +50°C (Class A1/A2) / -10°C to +65°C (Class B)
  • Operating Humidity: ≤ 95% RH (Non-condensing)
  • IP Rating: IP2X
  • Dimensions: 100 mm (D) x 53.3 mm (H) (With base)
  • Weight: 110 g (With base)
  • Addressing Method: Field electronic addressing (Address range 1 to 242 via handheld programmer)
  • Compatible Base: GST DB-01 Standard Base
  • Certifications: EN 54-5, LPCB Approved, CPR Certified, CE Marked

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