Sierra Monitor Corporation 3100-01 manual Led

Instruction Manual

LED 1 LED 2

Mounting Screw

(2 locations)

Configuration Switches

Figure 2-3: Model 3100 Series Detector Module (Front)

2.5.2Verify Control

The Enhanced Model 3100-02, -03, -04, - 05 and -06 have the Verified Fire function. The Verify Control switches allow the user to select the verify level, disable the verify function, or make the Verify Relay operate in parallel with the Fire Relay. The verify function in enabled when the detector de- clares an alarm. The verify level sets the degree of certainty required to declare a veri- fied fire. The lowest level (1) is the lowest certainty (fastest) and the highest level (6) is the greatest certainty (slowest) of a fire. The verify function enables an algorithm which evaluates the fire signature over time to de- termine the degree of certainty. When the degree of certainty exceeds the level set by the configuration switches a Verified Fire is declared and the Verify Relay is energized. Switches 3, 4, and 5 control the verify func- tion. The factory default is verify disabled and set to level 0. (SW3, SW4 and SW5 are off.)

2.5.3Latching Control

The latching controls allow the detector or individual relay outputs to be set to “Latch- ing” or “Fire Following”. “Latching” causes the relay to stay energized until power is re- moved from the detector. “Non-latching” al- lows the relay to reset (de-energize) when a flame is not present for a short period of time.

For the detector to be set to "Non-latching" both Fire Output and Verify Output must be set to "Non-latching". If either the fire out-

put or the verify output is set to "Latching" then the detector will be set to "Latching".

When the detector is set to "Latching" the LED's will indicate an alarm until the device is reset regardless of the fire or verify relay output settings.

The Verify Relay is automatically configured as “Latching” if the Fire Relay is set to “Latch- ing”. SW6 sets the Fire Relay Output, SW7 sets the Verify Relay Output and SW8 sets the Detector Mode. To set the detector to "Non-latching", SW6, SW7 and SW8 must be set to "Non-latching. The factory defaults are “Latching” (SW6 and SW7 are off.)

2.5.4Other Configuration Switches

The last configuration switch (SW9) must be in the off position. The factory default set- ting is off.

2.6LED operation (See Figure 2-3)

The status of all versions of the flame detectors can be determined from the LEDs located behind the lens on the front of the detector. The LEDs will flash at intervals or remain on to indicate the detec- tors status. (Fault Mode, Normal Mode, Alarm Mode, Verified Fire Mode, and on power up the Configuration Settings).

2.6.1Power Up

At power up all versions of the flame detec- tor will begin flashing the LEDs. The LEDs will flash 8 consecutive patterns which indi- cates the positions of the configuration switches. Each pattern indicates the position

Page: 4 Model 3100 Series Flame Detector (11/04)