Interlogix 2840T User Manual
2840T SERIES
Installation Instructions
Models: 2842TW, 2843TW, 2844TW, 2845T,
2846T, 2847T, 2847TH
Cover Tamper
2847TH only
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.
U
L
LISTED
PART
NUMBER
LOOP TYPE
ELECTRICAL
CONFIGURATION
Mounting Screw
Closed Loop
N.O.
N.C.
Open Loop
Mounting Screw
Com.
Com.
N.C.
Open Loop
N.O.
Closed Loop
Cover Tamper
2847TH only
*Cover tamper wires may be connected in series with closed
loop or they may be connected to a separate 24-hour loop.
NOTE: The products, materials, and specifications covered in
these Installation Instructions are subject to change
without notice as Sentrol strives for continuing product
improvement.
LEAD TYPE FINISH
GAP DISTANCE
(MAKE)*
2842TW
2843TW
2844TW
2845T
2846T
2847T
2847TH
**
Form A: (2842TW, 2845T)
Voltage: 100 V AC/DC max.
Current: 0.5 A max.
Power: 7.5 W max.
** European Union Specification: 48 V AC/DC Max., 0.5 Amp
Closed N/O #6 screw terminal Textured Brown Up to 2 1/2"
Open N/C #6 screw terminal Textured Brown Up to 2 1/2"
Open or Closed SPDT #6 screw terminal Textured Brown Up to 2 1/2"
Closed N/O #6 screw terminal Textured Brown Up to 1"
Open N/C #6 screw terminal Textured Brown Up to 1"
Open or Closed SPDT #6 screw terminal Textured Brown Up to 1"
Open or Closed SPDT #6 screw terminal Textured Brown 1/4" min., 1" max.
Form B: (2843TW, 2846T)
Voltage: 30 V AC/DC max.
Current: 0.25 A max.
Power: 3.0 W max.
CORPORATE HEADQUARTERS
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
SENTROL , inc
FaxBack: 800.483.2495
Form C: (2844TW, 2847T, 2847TH)
Voltage: 30 V AC/DC max.
Current: 0.25 A max.
Power: 3.0 W max.
* 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.
Cover Tamper: (2847TH)
At 24 V AC/DC 125 mA max.
At 6 to 12 V DC 250 mA max.
Sentrol reserves the right
to change specifications
without notice.
©1997 Sentrol, Inc.
C-1008-0197
Printed on Recycled Paper
10818 Rev B
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