0 installation instructions – Interlogix DV1200 Series User Manual
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• Don’t install sensors close to bells, buzzers, or telephones
unless gong(s) or hammer(s) can be taped to deaden sounds.
• Don’t mount sensors on rough surfaces. Smooth all surfaces.
• Don’t allow test signal transmitter to make contact with mount-
ing plate or sensor on masonry installation.
• Don’t use rigid conduit inside vault except where specified,
e.g. run wiring to door contacts and heat detectors in conduit.
• Don’t install sensors behind safe deposit boxes unless sen-
sors are made accessible for service.
2.5 Requirements When Using One Sensor
(DV1201 or DV1221)
All-steel safes with 1/4” walls*
Safes must be a minimum of 1/4” steel on the body and
1/2” on the door. For this type of safe construction, the overall
size of the safe must not be larger than 12 cubic feet or have:
• The height plus the width not greater than 55 inches, nor
• The height plus the depth not greater than 55 inches, nor
• The width plus the depth not greater than 55 inches.
The sensor can be mounted in or on the safe in close proximi-
ty to the door hinges or on the door itself. The sensitivity set-
tings (Refer to Tables 2 and 3) must be adjusted so that ade-
quate detection with the lowest setting is obtained. Use of the
Mounting Plate is optional. (Refer to Section 3.0 for additional
information).
All-steel safes with 1” walls*
Safes must have a minimum of 1” of steel on the body and the
door. The overall size must not exceed 52 cubic feet or
• The height plus the width not greater than 90 inches, nor
• The height plus the depth not greater than 90 inches, nor
• The width plus the depth not greater than 90 inches.
The DV1201 and DV1221 sensors can be mounted on the safe
door or on the body in close proximity to the hinges or inside the
safe. The sensitivity settings must be adjusted to obtain ade-
quate detection with the lowest possible setting. Use of the
Mounting Plate is optional.
* Control panel must be within visual or audible range
for testing.
A concrete-clad safe
The same dimensional rule of thumb applies as for an all-steel
safe with 1” walls. However, if the previous check of safe con-
struction revealed cracks, seams, or other irregularities in the
concrete shell, always assume that two sensors are required for
the safe housing regardless of its size.
FIGURE 2 - STRUCTURAL VIBRATION DETECTOR
Removing the cover screws and cover from the base plate (2)
provides access to the connection terminals (10) and the sensi-
tivity adjustment control (9).
Inside the unit are located:
• main mounting holes (4) (5)
• test transmitter areas (8) (7)
• strain relief (6)
• tamper switch (11)
3.0 INSTALLATION INSTRUCTIONS
3.1 General Instructions for DV1201/DV1221
Structural Vibration Detector
The DV1201/DV1221 Structural Vibration Detectors consist of
cast aluminum housings, with dimensions of 3.1in. x 3.9in. x
1.2in. (8 x 10 x 3cm), and weigh 9 ounces (250gr) each.
To mount the DV1201 and DV1221 on any surface, the follow-
ing tools are recommended:
• Mounting plate (also used as drilling template) supplied with
each DV1201/DV1221.
• Power drill with hammer
facility.
• Felt pen.
• #36 high speed steel
drill, diam. (for 6-32 tap).
• #29 high speed steel
drill, diam. (for 8-32 tap).
• High speed steel drill,
diam. 7/16”.
• Concrete drill, diam. 1/2”
(for expansion plug).
• Tap for 6-32 screw.
• Tap for 8-32 screw.
• Cutting oil to cool drill bit
and tap when steel
mounting is required.
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FIGURE 3 -
MOUNTING PLATE