Nikon XX152-02-00 - Manual (Page 14)

Mounting the Unit
In-Ceiling Mounting
The SurveyorVFT fixed dome rests on the ceiling material and occupies the space between the lower ceiling
and upper building frame. There are two methods of installation. The first method can be used for ceilings
with no access to the space above, as in a typical hard material ceiling. The second method is used for a
ceiling with access, as in the case of a dropped ceiling (metal grid type). All mounting hardware is provided.
Refer to the section on Optional Independent Support for installations requiring additional support (most
commonly, a dropped ceiling).
Using the Provided Scribe
A small metal scribe is provided to assist in marking an accurate hole size in a ceiling tile. Use it as follows.
1. Place the ceiling tile on a large flat surface, face up.
2. Measure and make a small mark at position A from any corner (11.9 in./302 mm). Refer to Figure 1.
3. Measure and make a small mark at position B (8.2 in./208 mm), placing the scribe as perpendicular to the
A-edge as possible.
4. Place the scribe across B and C. Rotate the scribe around center C for a full turn.
5. Cut out the circle using a sharp tool on the scribed line.
Figure 1
Use of the Scribe
Mounting from Below the Ceiling
Use this method of installation if there is no access to the space above. The ceiling material must provide
suitable strength to support the weight of the SurveyorVFT fixed dome with the two flippers on the enclosure.
Be sure the area around the selected location is clear of obstacles (such as steel beams, headers, pipes,
electrical wiring, etc.) that would interfere with mounting. Video, sync, and power cables must be routed to the
location.
1. Mark with the scribe and cut a 7-3/8 in. (187 mm) hole in the ceiling at the desired location. Remove the
tile from a dropped ceiling if necessary. Feed all necessary flexible conduit pipe or cables down through
the hole.
4 • Installation XX152-02-00 Rev 1204 SurveyorVFT Fixed Camera Dome