400 Series
™
Direct-Wire Photoelectronic
Smoke Detector
A Division of Pittway
3825 Ohio Avenue, St. Charles, IL 60174
1-800-SENSOR2 (736-7672), Fax 630-377-6495
http://www.systemsensor.com
Models Available
2400/2400A Photoelectronic
2400TH Photoelectronic with Thermal
2412B/2412BA Photoelectronic
2412THB Photoelectronic with Thermal
2424 Photoelectronic
2424TH Photoelectronic with Thermal
Features
• 12 or 24 volt operation
• Unique optical sensing chamber
• Removable cover and insect screen for easy
cleaning
• Visible LED blinks in standby, latches on in
alarm
• Sealed against dirt, insects, and back pressure
• Field sensitivity metering of detector to meet NFPA 72
requirements
• Twist-on mounting bracket with tamper option
• SEMS screws for easy wiring
• 3-year warranty
• Optional built-in 135° F (57° C) heat sensor
Specifications
3.2″ (8.1 cm) h, 5.5″ (13.9 cm)
dia. with mounting bracket;
add .5″ (1.27 cm) to height for
thermal
Shipping Weight:
0.5 lb. (227 g)
Operating Temperature Range:
Thermal Models:
32° F to 100° F (0° C to 38° C)
All Other Models:
32° F to 120° F (0° C to 49° C)
Operating
Humidity Range:
10 – 93% RH noncondensing
Air Velocity Rating:
3000 fpm
Wiring Gauge:
12 – 18 AWG, twisted pair
recommended
Mounting:
3
1
/
2
″
or 4″ octagon box,
4″ square box with plaster ring,
50, 60, 75 mm boxes
Smoke Detector Spacing:
On smooth ceilings (as defined in NFPA 72), spacing
of 30 feet (900 sq. ft.) may be used as a guide. Other
spacing may be used depending on ceiling height,
high air movements, and other conditions or response
requirements.
© System Sensor 2/97
Size:
Sensitivity:
3.0%
±
.7 ft. nominal
Test Features:
1. Test port – Insert 0.1 inch maximum diameter allen
wrench or screwdriver into test port on detector
housing.
2. Test card – After removing detector cover, insert
calibrated test card into test slot on screen.
3. Test module – Using a standard voltmeter interface,
insert MOD400R plug into detector’s module port.
Fulfills calibrated sensitivity test per NFPA 72.
Thermal Sensor Rating
(thermal models only): 135° F fixed temperature
restorable
APPROVED
This document is not intended to be used for installation purposes.
A05-194-03
SYSTEMSENSOR [ SYSTEMSENSOR ADVANCED IDEAS. ]
