Sentrol Advisor X Structural Vibration Detection System

1.0 Introduction

The Advisor X Structural Vibration Detection System is a seismic detection system designed to detect attempts to break into vaults, safes, night deposit safes, automatic cash dispenser units, and other reinforced physical areas such as data storage and filing cabinets.

To achieve high accuracy, the system analyzes three major parameters: signal strength, signal frequencies, and signal duration before triggering an alarm. These parameters differentiate real break-in attempts from nuisance signals. In general, the signal characteristics of a true break-in attempt include:

• Explosives: Generate a signal with a very high amplitude and a short duration.
• Mechanical Destruction (hammer and chisel): Generates signals with a rather high amplitude and a short intermittent signal duration.
• Rotating Devices: Generate signals with a moderate to high amplitude and a long signal duration.
• Thermal Devices: Generate signals with low amplitude and a long signal duration.

2.0 Planning Installation

2.1 What to Avoid

Although the Advisor X System is designed for high immunity against nuisance alarms, some precautions should be considered during installation planning. Do not install detectors close to electric motors, transformers, fans, air conditioners, or other electrical devices that create mechanical vibrations in the protected structure. Avoid mechanical contact between electrical devices and the protected structure's surface, or dampen vibrations using rubber-like insulating materials.

Water Piping

The flow of water through piping in mechanical contact with the protected structure emits a strong signal and may cause nuisance alarms.

Ultrasonic Detectors

Ultrasonic detectors may emit a signal within the frequency range of Advisor X detectors. Avoid placing them closer than six feet to the protected surface.

Bells

Bells may generate overtones in the Advisor X detector's frequency range. Place tape on the bell to suppress overtones, drill a hole in the gong, or relocate the bell.

2.2 Planning Vault Protection

Generally, it is advisable to place one detector on each wall, floor, and ceiling inside the vault, and one detector on or inside the vault door. See the following section on detection range and sensitivity test. Detectors can be mounted with the supplied Mounting Plate, the DV1212 Steel Surface Mounting Plate, or the DV1203 Recessed Mounting Plate. Mount detectors at a height of at least six feet (1.8m) to avoid interference from document cabinets and deposit boxes.

Special consideration is required for installations seeking a UL certificate (UL 681), including power supply, system test needs, and protection of interconnection cable.

Since the vault door is isolated by its hinges, place one detector inside the vault door. Newer vault doors often have cable channels in the hinges for easy sensor connection.

An optional method for protecting the vault doorway is to mount a detector on the outside of the door. This provides early protection against torch-cutting and thermic bar attack, as the vault door acts as a membrane detecting the signal before surface attack begins. The detector can be mounted directly or with a DV1202 or DV1203 mounting plate (see Section 3.0 for mounting instructions).

The DV1219 Armed Cable Kit and DV1228 Metal Junction Box allow cabling from the door to the frame via the hinge side with armored cable. Exercise caution when drilling into the vault door, as printed circuit board drill protection may exist behind the outer steel plate (consult the vault door manufacturer).

2.3 The Vault Sensitivity Test for Irregularities

If the vault or safe surface shows cracks, gaps, or other irregularities, perform a test to determine if the protection range of each sensor is affected. Additional sensors may be needed for optimal coverage. This test is not necessary for sensors mounted on steel surfaces. For concrete, block, and brick construction, use an electric drill and a 1/4" (6mm) carbide-tipped bit for the following test:

1. Locate any irregularity in the construction; mortar between bricks and blocks is considered an irregularity.
2. Install the sensor on one side of the suspected irregularity (see mounting instructions).
3. Wire the sensor to power and the alarm circuit.
4. Set the sensor sensitivity to MAX.
5. Drill into the wall at a point equal to the protection radius (R) based on the construction type (see table below). Check for an alarm.
6. If no alarm occurs, assume the irregularity inhibits the detector's range. Redrill closer to the sensor until an alarm occurs and identify the proper protection radius for that site.
7. Account for all irregularities when spacing sensors; additional sensors may be required. Note: The separation between the vault door and frame requires an additional detector on the door to counter potential weakness at this point.

2.4 Planning Guidelines

Dos

• Prepare a vault layout plan showing dimensions and equipment locations.
• Verify vault construction is monolithic concrete or concrete with a steel liner. For concrete block or brick, ensure masonry is bonded with Portland cement.
• Ensure sensors are mounted directly to masonry or steel surfaces using approved hardware.
• Install at least one sensor on each wall, plus the floor and ceiling.
• Protect the vault door with a sensor mounted as close as possible to its side, embedding it in the door frame.
• Perform drill tests on the outside of the vault whenever possible.
• Apply silicone sealant around sensor cover openings, screw heads, and cable ports after surface-mounting on the floor.

Don'ts

• Do not assume covered concrete walls are free of cracks, loose mortar, or other irregularities.
• Do not install sensors permanently before determining sensitivity settings and ambient noise levels.
• Do not install sensors on cinder block or other unapproved masonry surfaces.
• Do not install ultrasonic sensors inside the vault.
• Do not install sensors close to bells, buzzers, or telephones unless gongs or hammers can be taped to deaden sounds.
• Do not mount sensors on rough surfaces; smooth all surfaces.
• Do not allow the test signal transmitter to contact the mounting plate or sensor on masonry installations.
• Do not use rigid conduit inside vaults unless specified (e.g., for wiring door contacts and heat detectors).
• Do not install sensors behind safe deposit boxes unless they are accessible for service.

2.5 Requirements When Using One Sensor (DV1201 or DV1221)

All-steel safes with 1/4" walls*

Safes must have a minimum of 1/4" steel on the body and 1/2" on the door. For this construction, the overall size must not exceed 12 cubic feet or have:

• Height + width not greater than 55 inches,
• Height + depth not greater than 55 inches,
• Width + depth not greater than 55 inches.

The sensor can be mounted in or on the safe, near the door hinges or on the door itself. Sensitivity settings (Tables 2 and 3) must be adjusted for adequate detection at the lowest setting. Use of the Mounting Plate is optional (see Section 3.0).

All-steel safes with 1" walls*

Safes must have a minimum of 1" steel on the body and door. The overall size must not exceed 52 cubic feet or have:

• Height + width not greater than 90 inches,
• Height + depth not greater than 90 inches,
• Width + depth not greater than 90 inches.

The DV1201 and DV1221 sensors can be mounted on the safe door or body near the hinges, or inside the safe. Sensitivity settings must be adjusted for adequate detection at 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 rules apply as for an all-steel safe with 1" walls. However, if the safe construction revealed cracks, seams, or other irregularities, always assume two sensors are required, regardless of size.

Removing the cover screws and cover from the base plate [item 2] provides access to the connection terminals [item 10] and the sensitivity adjustment control [item 9]. Inside the unit are located: main mounting holes [items 4, 5], test transmitter areas [items 8, 7], strain relief [item 6], and tamper switch [item 11].

3.0 Installation Instructions

3.1 General Instructions for DV1201/DV1221 Structural Vibration Detector

The DV1201/DV1221 Structural Vibration Detectors have cast aluminum housings measuring 3.1in. x 3.9in. x 1.2in. (8 x 10 x 3cm) and weigh 9 ounces (250gr) each.

The following tools are recommended for mounting the DV1201 and DV1221 on any surface:

• 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.

3.2 Instructions for Mounting Plate

The mounting plate can be used for mounting the DV1201 and DV1221 on steel and concrete surfaces (see Sections 3.4 and 3.5). It also provides an adaptation hole layout for replacing Securitas SSD70, Cerberus GM31,35 GM550, or Arrowhead 3810 detectors (see figure 3).

• V = mounting holes for DV1201/DV1221 (threaded holes)
• S = mounting holes for DV1201/DV1221 (when replacing Securitas SSD70)
• C = mounting hole for DV1201/DV1221 (when replacing Cerberus GM31,35 GM550 or Arrowhead 3810)
• X = DV1215 drilling pattern on concrete
• B = mounting hole for expansion plug

3.3 Direct Mounting the DV1201/DV1221 on a Steel Surface

In some cases, it is advisable to mount the detector directly onto a steel surface using the provided bolts and installer-made threaded holes.

Mounting instructions for direct mounting on steel:

1. Define the exact location of the DV1201/DV1221 when mounted. Hold the mounting plate in position on the steel surface.
2. Using the felt pen and the mounting plate as a template, mark the location of the three threaded holes (see holes marked "V" in figure 9).
3. Drill three holes, using a #29 drill, at least 7/16" deep (see drawing) in the marked positions.
4. After drilling, tap the holes with an 8-32 tap, using cutting oil. Use a 7/16" diam. drill to smooth the surface around the holes and remove burrs.
5. Mount the detector to the steel surface using the three 8-32 screws provided (see figure 10).
6. If a DV1215 Test Transmitter is used, it can be mounted in the lower right corner of the detector.

3.4 Indirect Mounting of DV1201/DV1221 on a Steel Surface

Indirect mounting may be advisable in some cases:

• Use the mounting plate when replacing Securitas SSD70, Cerberus GM31,35 GM550, or Arrowhead 3810.
• Use the DV1212 Welded Mounting Plate if drilling on the protected surface is impractical or impossible.

3.5 Mounting the DV1201/DV1221 on Concrete

Surface mounting requires the mounting plate. Follow the instructions below:

1. Define the exact location of the DV1201/DV1221 and hold the mounting plate to the wall.
2. Using the felt pen, mark the location for the expansion plug hole on the wall (see drawing).
3. Drill a 1/2" diam. hole at the marked spot. Ensure the expansion plug is set flush with or below the wall surface.
4. Insert the expansion plug into the drilled hole, ensuring its top end does not protrude. Align the mounting plate over the hole and secure it with a bolt. If no test transmitter is used, proceed to step 10.
5. Before tightening the bolt, position the mounting plate to align the DV1215 drill pattern hole (Section 3.2) for cable routing (usually at the bottom). Check for proper horizontal/vertical alignment of the DV1201/DV1221.
6. Mark the DV1215 mounting hole with the felt pen. Position the mounting plate so the marked spot is over the DV1215 mounting hole (see Section 3.2 drawing).
7. Drill a 1/2" diam. hole at the marked spot. Ensure the expansion plug is flush with or below the wall surface.
8. Insert the DV1215 expansion plug into the hole, ensuring its top end does not protrude. Place the DV1215 test transmitter over the hole and secure with the provided bolt.
9. Ensure the DV1215 does not touch the mounting plate, then tighten the bolt. To seat the plug properly, tap the bolt's head a few times with a hammer (avoiding the DV1215) and tighten the bolt again. NOTE: At the first service visit, retighten all bolts to compensate for material expansion.
10. After mounting the plate on concrete, install the DV1201/DV1221 detector as described in 3.3.

2.4 Planning the Protection of an Automatic Cash Dispensing Unit (ATM) and a Night Depository Box

For both units, use the DV1221 to filter out noise generated by normal operation. The DV1221 can be mounted directly on the structure's surface.

• Automatic Cash Dispensing Unit: Protection is planned as for a safe. Note: The DV1221 is not designed for concrete. If the ATM has a concrete body, a DV1201 can be mounted on the outside surface, or a DV1221 on the inside metal surface.
• Night Safe Deposit Box: Protection is planned as for a safe. Insulate the chute and landing place with rubber material to muffle noise from deposited cash boxes.

4.0 Cable Requirements

4.1 WS300 Cable Preparation Instructions

The Aritech WS300 High Security Cable is specially designed to provide electrically protected cabling in a UL Complete Mercantile Safe System. The cable consists of double circuit shields enclosing all conductors. When wired per the Wiring Diagrams in Sections 4.0 and 7.0, the WS300 Cable complies with the description of electrically protected cable in UL 681.

The two aluminum shields wrapping the eight-conductor cable are isolated from each other. Each shield is electrically conductive to a drain wire (stranded cable, no insulation). When preparing the cable for connection to the DV1201/DV1221 detector and at the control panel, the shields and corresponding drain wires must be kept isolated. A special cable preparation procedure is described below.

1. Carefully remove approximately six inches of the PVC jacket. The outside protective shield detaches with the PVC jacket, leaving the drain wire loose.
2. To isolate this drain wire from the inside protective shield, slide a five-inch piece of wire insulator over the exposed drain wire. Wrap a layer of electrical tape around the insulated drain wire and remaining wires at the cut PVC jacket point.
3. Remove the mylar wrap isolating the shields and the second (inside) shield. Cut off both shields at the edge of the electrical tape.
4. Isolate this drain wire with wire insulator and wrap with a second layer of electrical tape.
5. Make connection to the DV1201/DV1221 sensor as indicated in the Wiring Diagram in Sections 7.0.

5.0 Testing

1. Prior to applying power, recheck all connections and ensure all mounting screws are tight.
2. Apply power. Connect an ohmmeter to Terminals 5 and 6 of the DV1201 or DV1221. Check for a closed alarm loop.
3. Connect a DC voltmeter (internal resistance 20 kΩ or more) to Terminal 2 (negative) and the test point TP (positive). Set the voltmeter to the 3V range. Set the sensitivity selector to the maximum sensitivity position (1). Ensure all possible causes for vibrations in the protected area are present and operating. Check the output voltage and adjust accordingly. Reduce the detector's sensitivity until the voltage reading is acceptable, or remove the source of ambient noise.

4. The voltage levels should meet the "OK" ranges stated above. If not, locate and remove the source(s) of ambient noise. Only reduce sensitivity settings below recommended levels (Tables 1 and 3) after exhausting all steps to eliminate noise sources. If settings are reduced, verify proper detection is maintained through surface testing.
5. Perform the following tests:
   • Scratch the surface around the detector with a screwdriver. The detector should trigger an alarm within approximately 30 seconds for the DV1201 and 45 seconds for the DV1221 (circuit opens between Terminals 5 and 6). This simulates attack with a drill, diamond disk, or thermal tool.
   • Knock firmly with a hammer on the protected surface around the detector at two-second intervals. After five blows, the DV1201 alarms. To protect the surface, place a small aluminum plate between the hammer and surface. This test simulates hammer and chisel attack and is valid only for the DV1201.
   • Give one powerful blow near the detector with a hammer. Both DV1201 and DV1221 alarm immediately. This simulates an attack with explosives.
6. Close the detector cover(s) and check for a closed-loop condition of the tamper loop.
7. Connect the alarm and tamper loop to the alarm panel and perform a functional test of both alarm and tamper signals per panel specifications.
8. Confirm proper activation at the system control to ensure correct loop wiring.

6.0 The Advisor X Test System

6.1 General Description

The structural vibration detectors in the Advisor X System can be checked with the Remote Test System. A DV1215 Test Transmitter is mounted inside the detector on the supervised surface. Upon application of 12VDC power, the transmitter's transducer converts supplied oscillations into signals transmitted into the protected surface and picked up by the detector. The detector goes into alarm, and its LED output (Terminal 3) goes out of conductive mode. In the indicator unit, a corresponding LED is activated and remains on as long as the sensor is in alarm.

7.0 Wiring Diagrams

7.1 Wiring the DV1201/DV1221 into Most Security Systems

7.2 Connecting the DV1201 to a Four-wire Circuit Type Control in a UL Complete Mercantile Safe System

7.3 Connecting the DV1201 to a Two-wire Balanced Loop Type Control in a UL Complete Mercantile Safe System

8.0 Technical Data

8.1 Technical Data for the DV1201/DV1221

Operating data:

• Input power: external DC power source 10.7-15VDC, 2V maximum ripple peak-to-peak @ 12V_PS
• Current consumption: 14 mA maximum.
• Alarm output: SPDT relay contact rating 100 mA, 15V, 3W.
• Tamper connection: normally closed tamper switch rated at 100 mA @ 30V.
• Alarm indication: remote LED output for use with DV1208. stand-by = negative, alarm = open connection.
• Adjustment: sensitivity adjustment in 5 steps of approximately 6 dB.
• Test output level: TP1 for measuring ambient noise. See wiring and testing.
• Range: See planning instructions.
• Tamper heat attack: Protection from temperature 93 degrees C of drilling protective plate, magnetic field contact, opening contact, pry-off contact, low voltage alarm if voltage below 7V.
• Operating life: MTBF 240,000 hours.

Environmental data:

• Temperature limits: operational -4°F to 131°F (-20° to +55° C); storage -58°F to 158°F (-50°C to +70°C).
• Relative humidity: operational 90% at 86°F (30°C).
• Electric field: max. 5 x 10⁴ gauss.
• Static discharge: max. 20kV.
• Electric discharge: max.1.5kV at 0.4m joule; max. 300V at 0.5 joule.

Physical Data:

• Dimensions: 3.9in. x 3in. x 1.2in. (10 x 8 x 3cm).
• Color: beige.
• Weight: 8.8oz.(250grs.)

8.2 Technical Data for DV1215

• Input power: external DC power source 10.7-15V .2V, maximum ripple peak-to-peak.
• Current consumption: typical 5 mA.
• Sweeping frequency: 6-20 kHz.
• Size: .8in. x .8in. x .4in. (2 x 2 x 1cm).

Ordering Information