Installation Guide and Operating Manual // Model FS20X™ Series
Honeywell
22
4.3
Digital Communication Options
The FS20X Detector has a variety of Analog and RS-485 Digital Communication options that can be selected
using its Rotary Switch SW3.
SW3
Position
Outputs
0
4-20mA Current Sinking and FireBus
II
1
4-20mA Current Sourcing and FireBus
II
2
ModBus RTU and 4-20mA Current Sourcing
3
Reserved for Factory Use
4
FireBus
II
and 4-20mA Current Sourcing
5 through 9
Reserved for Factory Use
4.4 Test
Lamps
Some manufacturers claim that their detectors do not need remote testing with an external Test Lamp
because it tests itself. Even though Honeywell Analytics Detectors also perform “through the lens” self-testing
and tests themselves, Honeywell Analytics, in compliance with NFPA 72 codes, has developed portable test
lamps for periodical “end-to-end” testing their Detectors remotely. Some of the most important functions of
the remote test lamp are to ensure the Detector’s optical path is not blocked, the Detector is aimed properly at
the fire threat area (that the Detector mounting bracket didn’t move or was accidentally bumped by someone),
and the Detectors alarming circuitry and outputs (i.e. relays, 4-to-20 mA, open collectors, etc.) function
properly. Internal Detector testing and window lens cleanliness testing cannot insure the Detector is aimed
properly, that its view of the fire scene has not been blocked by something such as a newly installed pipe or
duct, storage box, parked vehicle, etc., and its alarm outputs are functioning properly.
For calibrated testing, in compliance with NFPA 72 Codes for flame detectors, as manufacturers of the FSX
product line, our calibrated testing using our TL-2055 Test Lamp is as follows. If the FS20X set at Highest
Sensitivity alarms to a fully charged TL-2055 Test Lamp at a distance between 1 and 25 feet, then the FS20X
is in normal operating condition.
WARNING: Use test lamp model TL-1055 in non-hazardous locations only! For
hazardous locations, use model TL-2055 as described below.
U
TL-1055
U
is a general purpose NEMA 1 hand held
rechargeable Test Lamp designed for testing the
FSX™ Detectors externally. The hand held Test
Lamp (see Figure 4-1) comes with a Universal
Charger (110 VAC and 220 VAC).
U
TL-2055
U
is a Class I, Div. 1 approved Explosion-Proof
Test Lamp designed for testing the FSX™ Detectors
externally, in a hazardous location. The hand held
Test Lamp (see Figure 4-2) comes with a Universal
Charger (110 VAC and 220 VAC).
Figure 4-1
TL-1055 Hand Held Test Lamp (NEMA 1)
Figure 4-2
TL-2055 Hand Held Test Lamp (Class
I
, Division 1)
