Potter HSC-1 - Manual (Page 3)

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HSC • 5401057-K • 10/10
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HSC • 5401057-K • 10/10
GENERAL DESCRIPTION
The model HSC, a High Security Contact switch is listed by Underwriters Laboratories, Inc. and
Underwriters Laboratories of Canada for monitoring the open or closed position of safe and vault
doors. The switch includes design features, which makes it highly defeat resistant in critical
environments.
FEATURES
• Triple-biased, SPDT (Form C) reed alarm switches in the switch unit with a magnet array in the
magnet unit, makes the defeat of the switch with an external magnet virtually impossible.
• Magnetic fi eld tamper output added to further resist defeat with an external magnet or magnet
array assembly.
• Hidden pry tamper, SPST (Form A) alarm switch output.
• For indoor / outdoor use.
• Lead type-8 foot fl exible stainless steel armored cable.
• Narrow housing allows for mounting on narrow door frames
• Grey powdercoat aluminum housings with protective end caps.
SPECIFICATIONS
• Dimensions: 4 5/16” W x 1” H x 29/32” D
• Switch Contact Rating:
30 VDC max. switching voltage
250 mA max. switching current
3 Watts max. power rating
Warning: Each electrical rating is an individual maximum and must not be exceeded.
• Tamper Contact Rating:
30 VDC max. switching voltage
250 mA max. switching current
3 Watts max. power rating
Warning: Each electrical rating is an individual maximum and must not be exceeded.
• Ambient temperature range: -31°F (-35°C) to 151°F (66°C)
• Optional Accessory: (L) Bracket-HSC Mounting
ORDERING INFORMATION
HSC-1 SPDT Stk. No. 2020350
(L) Bracket-HSC Mounting Stk. No. 5160248
Spacer Bracket Stk. No. 5160260
MOUNTING AND INSTALLATION
Warning: The High Security Contact switch unit and magnet were manufactured and tested
as a set. They must be installed as a set to insure proper operation.
Locate the desired mounting location of the switch unit (preferably at the top of a door frame as
far as possible from the hinges.) In planning for mounting of the HSC, note that the switch and
magnet must be oriented correctly. The switch and magnet must be aligned in the same plane and
be at a defi ned operating distance apart. Note the I.D. groove along the side of each housing.
Position the switch and magnet so that the I.D. grooves are facing each other and the end of the
magnet aligns with the end of the switch.
The maximum and minimum operating distance (gap distance) is the distance at which the unit will
report secure. If the magnet is too close to the switch unit or too far away, the unit will alarm. The
gap distance for the HSC is approximately .20”-.60”. However, environmental conditions and the
type of surface mounting material and its thickness may slightly alter the actual gap distance and
the minimum distance at which the gap starts for your particular installation. For best reliability, it is
recommended that the unit be mounted at the midpoint of the actual gap distance of the unit.
The optimum midpoint of the gap distance can be determined by the following recommended
installation method:
1. With the switch located and magnet oriented correctly on the mounting surface, monitor the
closed loop wires of the switch. Slowly advance the magnet toward the switch until the circuit
closes and mark the mounting surface at the leading edge of the magnet housing.
2. Continue to slowly advance the magnet toward the switch until the circuit opens and once
again mark the mounting surface at the leading edge of the magnet housing.
3. Position the leading edge of the magnet at the midpoint of the two marks.
4. Use the supplied switch and magnet templates (See fi gure 5) to mark the mounting holes.
5. Pre-drill the pilot holes for #8 or M4 mounting screws (not supplied).
6. For High Security Certifi ed Safe and Vault applications a pry tamper is required. For these
applications, also use the switch template to mark the pry tamper screw location.
7. Pre-drill a .125 dia. pilot hole for the #6 pry tamper screw. Install the supplied #6 oval head
pry tamper screw fl ush to the mounting surface. The fl ush screw head yields the correct
height to actuate the pry tamper switch on the back of the switch unit.
8. Mount the switch and magnet units using #8 or M4 mounting screws (not supplied).
9. Connect leads as shown in wiring diagrams per fi gure 1 and check for proper operation.