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Interlogix 2840T Series User Manual

2840t series, Installation instructions

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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

**