Interlogix 2840T Series - Manual

2840T SERIES
Installation Instructions
Models: 2842TW, 2843TW, 2844TW, 2845T,
2846T, 2847T, 2847TH
STEP 1: INSTALLATION
Models 2842TW, 2843TW, 2844TW, 2845T, 2846T, 2847T:
(Cover Tamper Optional)
Select desired mounting positions for switch and magnet,
observing gap distance. On wide gap switches (2842TW,
2843TW, 2844TW) align labels on switch and magnet so labels
read in same direction (switches are polarity sensitive).
Model 2847TH: (Cover Tamper Standard)
Mount switch in desired location. Attach Ohmmeter to "Closed
Loop" and "Common" terminals. Meter should read INFINITY
with magnet away from switch. Bring magnet toward switch until
meter reads 0 Ohms, mark this point. Align labels on switch and
magnet so labels read in same direction (switch is polarity
sensitive). Bring magnet toward switch until meter again reads
INFINITY. Mark this point, and position the magnet between
these two marks. With magnet positioned correctly, the switch
shall have balanced operation and will be more difficult to defeat
if an external magnet is used in such an attempt.
*Cover tamper wires may be connected in series with closed
loop or they may be connected to a separate 24-hour loop.
Com.
N.C.
Open Loop
N.O.
Closed Loop
Cover Tamper
2847TH only
Cover Tamper
2847TH only
Mounting Screw
N.O.
Closed Loop
N.C.
Open Loop
Com.
Mounting Screw
NOTE: The products, materials, and specifications covered in
these Installation Instructions are subject to change
without notice as Sentrol strives for continuing product
improvement.
Cover Tamper: (2847TH)
At 24 V AC/DC 125 mA max.
At 6 to 12 V DC 250 mA max.
PART
NUMBER
LOOP TYPE
ELECTRICAL
CONFIGURATION
LEAD TYPE FINISH
GAP DISTANCE
(MAKE)*
2842TW Closed N/O #6 screw terminal Textured Brown Up to 2 1/2"
2843TW Open N/C #6 screw terminal Textured Brown Up to 2 1/2"
2844TW Open or Closed SPDT #6 screw terminal Textured Brown Up to 2 1/2"
2845T Closed N/O #6 screw terminal Textured Brown Up to 1"
2846T Open N/C #6 screw terminal Textured Brown Up to 1"
2847T Open or Closed SPDT #6 screw terminal Textured Brown Up to 1"
2847TH Open or Closed SPDT #6 screw terminal Textured Brown 1/4" min., 1" max.
Form A: (2842TW, 2845T)
Voltage: 100 V AC/DC max.
Current: 0.5 A max.
Power:
7.5 W max.
Form C: (2844TW, 2847T, 2847TH)
Voltage: 30 V AC/DC max.
Current: 0.25 A max.
Power:
3.0 W max.
U
L

LISTED
Form B: (2843TW, 2846T)
Voltage: 30 V AC/DC max.
Current: 0.25 A max.
Power:
3.0 W max.
12345 SW Leveton Dr.
Tualatin, OR 97062
Tel.: 503.692.4052 Fax: 503.691.7566
U.S. & Canada: 800.547.2556
Technical Service: 800.648.7424
FaxBack: 800.483.2495
CORPORATE HEADQUARTERS Sentrol reserves the right
to change specifications
without notice.
©1997 Sentrol, Inc.
SENTROL , inc
* Gap Specifications are nominal and may vary ± 20%. Gap
Specifications are for switch to make. Break distance is
approximately 1.1 to 1.5 times make.
** European Union Specification: 48 V AC/DC Max., 0.5 Amp
C-1008-0197
10818 Rev B
Printed on Recycled Paper
**