Visual Indicators; Intended Use - Dräger Flame 2100 Gebrauchsanweisung

en Description
2.2.5

Visual indicators

One 3-color status LED is located inside the detector window. The
statuses are as follows:
Detector status LED color
Normal Green
Yellow
1)
Fault, BIT fault
Warning Red
Alarm Red
1) Built-in test
For more information on the detector status, please refer to the
Technical Manual.
2.2.6 Internal tests
During normal operation, the flame detector performs the following self
tests:
Continuous feature test (performed automatically)

This test complies with SIL-2 requirements. The flame detector
continuously tests:
Input voltage level

All internal regulator voltage levels

Voltage level status of sensor and sensor circuitry for noise or

disconnection in the electronic circuitry
0-20 mA output level

Relays and heater operation

Processor watch dog

Software

Memory

Oscillator frequency

8
BIT (performed automatically every 15 minutes)

The BIT checks the following:


LED mode

Note: Dräger Flame 2100 and Dräger Flame 2350 only: The BIT may
1 Hz - flashing
also be performed manually.
4 Hz - flashing
Any failure is indicated by:
2 Hz - flashing
Fault relay:


Steady

Status LED: Flashes yellow (4 Hz)

0-20 mA output: indicates fault (0 mA) or BIT fault (2 mA) in wiring

option 1, 2, 3
If the BIT was not successful, it is then automatically performed every
minute. This continues, until a successful BIT occurs and the flame
detector resumes normal operation. The fault indication remains until
power is disconnected from the flame detector. The fault indication
returns if the fault is still found when power is restored.
2.3
The flame detector is an electronic device designed to sense the
occurrence of fire and flames and subsequently activate an alarm or
an extinguishing system directly or through a control circuit.
The flame detector is designed to operate as a stand-alone unit
directly connected to an alarm system or an automatic fire
extinguishing system. Each flame detector can also be a part of a more
complex system, where many detectors and other devices are
integrated through a common control unit.
Electronics circuitry
Sensors
Window cleanliness
Opens in wiring option 1, 2, and 4
Closes in wiring option 3 and 5

Intended use