Important!
NEMA TYPE 4X/IP66 rated conduit fittings must be used to maintain Enclosure NEMA TYPE 4X/IP66 rating.
Drilling Procedure
Required Equipment (customer supplied):
1. NEMA TYPE 4X/IP66 rated conduit fittings
2. Power Drill
3. Step Drill Bit or Variable Diameter Drill Bit
4. Eye protection and gloves
Prior to drilling, account for:
• Enclosure orientation
• 9900 module(s)
• Current application wiring
• Other factors which may impact wiring access
Recommended:
When using the 9900
Relay Module (3-9900.393),
use ports above, below or across
from Relay Module terminals to
ensure wiring clearance.
Use eye protection and gloves when drilling.
Drill Enclosure conduit ports at a workbench,
not when installed on a pipe, wall or panel.
4
2
3
NOTE: Multiple conduit ports
may be required.
Do not route the sensor,
DC power, or 4 to 20 mA cables
in conduit containing AC power
wiring. Electrical noise may
interfere with sensor signal.
Wall Mount Installation
4
OR Angle mount
Wall
Flush mount
Wall 811
10
Wall
9
7
5
6
x2
1. Determine the Enclosure Orientation (hinge on top,
bottom, left or right side) and mark the desired conduit ports.
2. On a workbench, while wearing PPE, drill out the marked
conduit ports. See Drilling Procedure for details.
3. Install conduit fittings into drilled out conduit ports.
4. Determine the wall mounting position of the Hinged Cover
and drill pilot holes. Install wall anchors if required.
Mount cover using (4) #8 x 1¼ in. screws.
5. Remove 9900 gasket before installation into Rear
Enclosure!
6. If Relay Module (3-9900.393) is not used, install Module
Plug into Relay Slot and secure using two screws.
7. While gripping the 9900 face, install the Enclosure onto the
rear of the 9900, (there will be a series of clicks).
8. Install application wiring through conduit fittings.
Recommended: Do not route the sensor, DC power, or
4 to 20 mA cables in conduit containing AC power wiring.
Electrical noise may interfere with sensor signal.
9. Slide Enclosure barrels onto Hinged Cover pins.
10. Install Hinge Clip to lock the cover to the enclosure.
11. Secure cover with (2) #6-32 x ½ in. screws. Tighten screws
until tabs touch, do not over tighten.
Required drill sizes
Hinged Cover = 0.45 mm (11/64 in.)
Pilot holes: Dry-wall or plaster = 6.40 mm (¼ in.)
Steel panel or wood = 3.50 mm (#29: 0.136 in.)
Hinged Cover (3-9900.399-1) ONLY
Apply sufficient pressure when installing
the 9900 into the enclosure.
Make sure there are no gaps between the
9900 and the front gasket of the enclosure.
Not applying sufficient pressure can result
in leaks.
2Signet 9900 Rear Enclosure
