3-2
Table 3-2. TrueAlarm Sensor Specifications
Sensor PID
4098-9714 4098-
9717
4098-9733 4098-9754 4098-9746
Type of Sensor
Photoelectric Ionizat
ion
Heat Photo/Heat Gas
Average
Operating
Current
80 A 80 A
6 A at 68 F (20°C)
13 A at 135 F (57 C)
90 A
50µA
UL Temperature
Rating*
135 F (57 C)**
155 F (68 C)†
135 F (57 C)**
155 F (68 C)†
Humidity Range
(Non-Condensing)
10-95% RH
10-
95%
RH
10-95% RH 10-95% RH
15-95% RH
(15-90% for
long term
exposure)
Air Velocity
Range
0-2000 FPM
0-200
FPM
0-2000 FPM
0-1000 FPM
* Fixed temperature functions are software programmed and selectable from the UL temperature rating.
** UL Max. Ambient Ceiling Temp. of 100° F (38° C) at 3600 sq. ft of Max. Coverage.
† UL Max. Ambient Ceiling Temp. of 100° F (38° C) at 1600 sq. ft of Max. Coverage.
1. Smoke sensor sensitivities are set and continuously monitored by the control unit.
The sensitivity range (setting) for the 4098-9714 and 4098-9754 sensor is 0.2%/FT to
3.7%/FT smoke obscuration. The sensitivity range (setting) for 4098-9717 sensors is
0.5%/FT to 1.3%/FT.
2. The 0.2%/FT, 0.5%/FT, and 1.0%/FT settings for the 4098-9714 and 4098-9754 sensor and the
0.5%/FT and 0.9%/FT settings for the 4098-9717 sensor are for special applications only.
The 0.2%/FT, 0.5%/FT, 0.9%/FT, and 1.0%/FT settings are very sensitive settings: only use the
0.2%/FT setting when a sensor is located in a totally smoke-free and controlled
temperature environment, such as a computer room or telephone switching exchange.
3. To determine if an area is suitable for the 0.2%/FT setting, set the sensitivity for the installed
sensor at 1.5%/FT and monitor the peak values for 90 days. If you record a peak value of
0.1%FT or higher during the 90 days, do not use the 0.2%/FT setting.
4. To determine if an area is suitable for the 0.5%/FT setting, set the sensitivity for the installed
sensor at 1.5%/FT and monitor the peak values for 90 days. If you record a peak value of
0.25%FT or higher during the 90 days, do not use the 0.5%/FT setting.
5. To determine if an area is suitable for the 0.9%/FT or 1.0%/FT setting, set the sensitivity for
the installed sensor at 1.3%/FT (Ion) 1.5/FT (Photo) and monitor the peak values for
90 days. If you record a peak value of 0.5% or higher during the 90 days, do not use the
0.9%/FT (Ion) or 1.0%/FT (Photo) settings.
All sensors identified in Table 3-2 mount to a sensor base (refer to the “4098 TrueAlarm
Sensor Bases” section of this chapter for more information). Use the following information and
Figure 2-1 when mounting TrueAlarm sensors.
4098 TrueAlarm Sensors
Specifications
Special Applications
Mounting
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