Potter EVD-2 User manual

POTTER ELECTRIC SIGNAL COMPANY
2081 CRAIG ROAD • P.O. BOX 28480 • ST. LOUIS, MO 63146-4161
[phone] • [phone] • FAX: [phone]
www.pottersignal.com
Manual #5401042 • Rev L • 5/03
ALL SPECIFICATIONS SUBJECT TO REVISION
EVD-2
ELECTRONIC VIBRATION DETECTOR
SYSTEM
INSTALLATION, OPERATION AND
INSTRUCTION MANUAL
EVD-R
REMOTEPICKUP
RTA
(OPTIONAL)
EVD-M
CONTROLLER

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EVD-2•5401042•REVL•03/05
Potter Electric Signal Company
2081 Craig Road • P.O. Box 28480 • St. Louis, MO 63146-4161
[phone] • [phone]
www.pottersignal.com
WARRANTYINFORMATION
The essential purpose of any sale or contract for sale of any of the products listed
in the POTTER catalog or price list is the furnishing of that product. It is expressly
understood that in furnishing said product, POTTER does not agree to insure the
Purchaser against any losses the Purchaser may incur, even if resulting from the
malfunction of said product.
POTTER warrants that the equipment herein shall conform to said descriptions as to
all affirmations of fact and shall be free from defects of manufacture, labeling and
packaging for a period of one (1) year* from the invoice date to the original
purchaser, provided that representative samples are returned to POTTER for
inspection. Upon a determination by POTTER that a product is not as warranted,
POTTER shall, at its exclusive option, replace or repair said defective product or
parts thereof at its own expense except that Purchaser shall pay all shipping,
insurance and similar charges incurred in connection with the replacement of the
defective product or parts thereof. This Warranty is void in the case of abuse,
misuse, abnormal usage, faulty installation or repair by unauthorized persons, or if
for any other reason POTTER determines that said product is not operating properly
as a result of causes other than defective manufacture, labeling or packaging.
THEAFORESAIDWARRANTYISEXPRESSLYMADEINLIEUOFANYOTHER
WARRANTIES,EXPRESSEDORIMPLIED,ITBEINGUNDERSTOODTHATALLSUCH
OTHERWARRANTIES,EXPRESSEDORIMPLIED,INCLUDINGTHEWARRANTIESOF
MERCHANTABILITYANDFITNESSFORPARTICULARPURPOSEAREHEREBY
EXPRESSLYEXCLUDED. INNOEVENTSHALLPOTTERBELIABLETOPURCHASER
FORANYDIRECT,COLLATERAL,INCIDENTALORCONSEQUENTIALDAMAGESIN
CONNECTIONWITHPURCHASER’SUSEOFANYOFTHEPRODUCTSLISTED
HEREIN,ORFORANYOTHERCAUSEWHATSOEVERRELATINGTOTHESAID
PRODUCTS. NEITHERPOTTERNORITSREPRESENTATIVESSHALLBELIABLETO
THEPURCHASERORANYONEELSEFORANYLIABILITY,CLAIM,LOSS,DAMAGE
OREXPENSEOFANYKIND,ORDIRECTCOLLATERAL,INCIDENTALORCONSE-
QUENTIALDAMAGESRELATIVETOORARISINGFROMORCAUSEDDIRECTLYOR
INDIRECTLYBYSAIDPRODUCTSORTHEUSETHEREOFORANYDEFICIENCY,
DEFECTORINADEQUACYOFTHESAIDPRODUCTS. ITISEXPRESSLYAGREED
THATPURCHASER’SEXCLUSIVEREMEDYFORANYCAUSEOFACTIONRELATING
TOTHEPURCHASEAND/ORUSEOFANYOFTHEPRODUCTSLISTEDHEREIN
FROMPOTTERSHALLBEFORDAMAGES,ANDPOTTER'SLIABILITYFORANY
ANDALLLOSSESORDAMAGESRESULTINGFROMANYCAUSEWHATSOEVER,
INCLUDINGNEGLIGENCE,OROTHERFAULT,SHALLINNOEVENTEXCEEDTHE
PURCHASEPRICEOFTHEPRODUCTINRESPECTTOWHICHTHECLAIMISMADE,
ORATTHEELECTIONOFPOTTER,THERESTORATIONORREPLACEMENTOR
REPAIROFSUCHPRODUCT.
*All products identified by the symbol E carry the warranty for 5 years from invoice
date.

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EVD-2•5401042•REVL•03/05
Contents
GENERAL INFORMATION................................................................................................... 5
FEATURES............................................................................................................................ 5
SPECIFICATIONS ................................................................................................................ 5
ORDERING INFORMATION ................................................................................................ 5
EVD-M CONTROLLER......................................................................................................... 6
ACCUMULATOR FUNCTION............................................................................................... 6
EVD-M CONTROLLER DETAILS......................................................................................... 7
EVD-M TERMINAL CONNECTIONS ................................................................................... 7
EVD-R REMOTE PICKUP.................................................................................................... 8
END OF LINE RESISTOR LOCATIONS ............................................................................. 8
EVD-R REMOTE PICKUP DETAILS ................................................................................... 9
EVD-R TERMINAL CONNECTIONS ................................................................................... 9
RECOMMENDED WIRING EVD-2 SYSTEM .................................................................... 10
RECOMMENDED WIRING .................................................................................................11
RECOMMENDED WIRE TYPES ........................................................................................11
RECOMMENDED CONTROL PANEL WIRING AND RTA CONNECTIONS................... 12
INSTALLATION .................................................................................................................... 12
EVDWIRINGWITHSAFEDETECTORZONEAND24HOURALARM ZONE ..................... 13
EVDWIRINGWITHSAFE DETECTORZONEONLY ........................................................... 14
SENSITIVITYADJUSTMENTS .............................................................................................. 15
ANALOGTESTPOINTLEVELS .......................................................................................... 15
TESTING .............................................................................................................................. 16
RECOMMENDEDDETECTORLOCATIONS .......................................................................... 17
DETERMININGTHENUMBEROFDETECTORSFORASAFEAPPLICATION ...................... 18
DETERMININGTHEMAXIMUMLINEARDISTANCEONASAFE ......................................... 19
TYPICALSAFEEXTERIOR DIMENSIONSANDMAXIMUMLINEARDISTANCES ............... 19
TYPICALULCOMPLETE SAFE INSTALLATIONS............................................................... 20
TYPICALULCOMPLETE VAULTINSTALLATIONS............................................................. 20
EVD-2WALLPROTECTION ................................................................................................ 20
WALLPROTECTIONDIAGRAM .......................................................................................... 20
RECOMMENDEDMAXIMUMEVD-M/EVD-RSPACING ........................................................ 21
FORWALLPROTECTION ................................................................................................... 21
DIMENSIONS ........................................................................................................................ 21
EVD-MOREVD-RMOUNTINGTEMPLATE ......................................................................... 22

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EVD-2•5401042•REVL•03/05

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EVD-2•5401042•REVL•03/05
GENERALINFORMATION
The EVD-2, Electronic Vibration Detector System, is listed by Underwriters Laboratories, Inc. and
Underwriters Laboratories of Canada for primary protection of Mercantile or Bank, safe or vault and
supplementary protection of interior units such as file cabinets, display cases, walls and ceilings. The
System must be used with an appropriate UL listed control unit.
The standard EVD-2 system consists of a model EVD-M controller and a model EVD-R remote pickup.
FEATURES
• Detects all common threats to safes, vaults and ATM's.
• Sophisticated signal processing provides unprecedented sensitivity without false alarms.
• Expandable system allows up to 15 remote pickups, (Model EVD-R).
• Reliable, sensitive piezo sensor technology.
• On board high security safe contact interface.
• Integral, multi-color status LED.
• Built in test circuit on both controller and remote pickups.
• Remote test and annunciator capabilities.
• Supervisedmicroprocessor.
• Independenttamperoutput.
• On board test point facilitates installation and service.
• Built in accumulator.
Specifications
Dimensions: (EVD-M and EVD-R)
5.10"H x 3.26"W x 1.20"D
(13,0cm H x 8,3cm W x 3,0cm D)
Weight: EVD-M 0.64 lbs. (0,29 kg)
EVD-R 0.62 lbs. (0,28 kg)
Enclosure: Base: Die-cast aluminum
Cover: Stamped Steel, 22 Gauge
PowerInput: 9.0 VDC to 16.0 VDC, 12 VDC Nominal
Maximum 0.1 V ripple
TypicalCurrent: (Supply Voltage 12.0 VDC)
Normal Standby Condition: 34 mA
Alarm Condition: 33 mA
TamperCondition: 41 mA
Each additional EVD-R Remote Pickup adds approx. 3 mA
With model RTA connected, add 10 mA in Tamper Condition and 10 mA in
Alarm condition
Maximum Current: (Supply Voltage 16.0 VDC)
Normal Standby Condition: 36 mA
Alarm Condition: 33 mA
TamperCondition: 43 mA
With model RTA connected, add 14 mA in Tamper Condition and 14 mA in
Alarm condition
Contact Data: Alarm Relay: Form C, 2.0 Amps at 30 VDC
Tamper Contact: Form A, 2.0 Amps at 30 VDC
OptionalAccessories: RTA Remote Test Annunciator
UL Listed High Security Cable
Required for UL safe complete installations
ORDERING INFORMATION
Description Stock No.
EVD-2 SYSTEM 2020300
CONSISTINGOF:
1 EVD-M Controller 2020250
1 EVD-R Remote Pickup 2020260
EVD-2C Safe/Vault Pak 2020240
Includes:
1 HSC-1 High Security Door Contact
OPTIONALEQUIPMENT:
RTA Remote Test Annunciator 2020270
High Security Cable (“B” Cable) 5210408
Note: If 12 VDC is not available from main burglar panel, the following power supply is recommended:
12 VDC Power Supply 2020310
16.5 VAC Transformer 2020320

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EVD-2•5401042•REVL•03/05
EVD-M CONTROLLER
The EVD-M controller is a microprocessor controlled, vibration detector that incorporates advanced
detection methods for identifying all common types of attacks. It detects short duration, large amplitude
signals like those produced in attacks from explosions, hammering or chiseling. It also detects long
duration, small amplitude signals like those produced in attacks from torches, thermic lances, drills,
grinders or cutting discs. As soon as the EVD-M detects a large amplitude alarm source it signals an
alarm. Small amplitude alarm sources must persist for 15 seconds before the EVD-M signals an alarm.
Alarm contacts operate for a minimum of 2 seconds.
The EVD-M contains two sensitivity adjustments: one for EVD-M’s internal pickup, another one for a
network of remote pickups. The EVD-M controller supports up to 15 EVD-R remote pickups, (or may be
used as a stand alone unit), and fully supervises EVD-R wiring. The EVD-M signals wiring faults as
alarms. A cover tamper and a back tamper protect the EVD-M from cover removal or prying. If either
tamper on the EVD-M activates or any remote pickup signals tamper, the EVD-M will signal a tamper
alarm condition. Tamper alarm contacts operate for a minimum of 2 seconds. If more than five remote
pickups signal a tamper condition, the EVD-M will signal an alarm. The internal pickup of the EVD-M is
always active, regardless of any tamper condition.
The model EVD-M controller provides a Form C, alarm contact for connection into the alarm protective
circuit. Additionally, the EVD-M provides an independent, Form A, tamper alarm contact which can be
wired as a separate 24 hour alarm circuit or wired in series with the alarm protective circuit. The EVD-M
includes accessory terminals for an alarm condition remote annunciator, a tamper alarm remote
annunciator, and a remote test input. The remote test input terminal permits the connection of dry
contacts from any Underwriters Laboratories listed central station test unit. The remote test annunciator,
model RTA, provides a normally open test switch and alarm and tamper alarm annunciators that interface
directly to the accessory terminals of the EVD-M.
In addition to its remote test capability, the EVD-M provides a magnetically activated test switch that
permits testing of the installation. The EVD-M contains a multi-color LED to indicate system status. This
status LED indicates several states:
NOTES:
1. If both an alarm condition and a tamper condition exist, the status LED will indicate RED for the
alarm. The remote annunciators and the alarm and tamper alarm contacts will indicate both alarm
and tamper alarm conditions.
2. If the microprocessor fails, the status LED will blink RED and both the alarm and tamper alarm
contacts will be activated.
ACCUMULATOR FUNCTION
The EVD-M contains a rotary switch that controls the EVD-M’s accumulator setting. This accumulator,
when activated, accumulates impact events. When the number of valid signals matches the setting on the
rotary switch, the EVD-M signals an alarm. This feature can be useful for installing an EVD-2 system
where some noise is normal. The accumulator is only active when the rotary switch setting is NOT zero.
The threshold for valid signals is controlled by the sensitivity settings for the internal pickup and the
remote pickups. If EVD-M has not detected enough valid signals for an alarm and five minutes pass after
the last valid signal, the EVD-M resets the accumulator count to zero. As an aid to installers, the EVD-M
blinks its status LED for each valid accumulator signal that it detects. (This feature is only active while
the EVD-M cover is off and if the accumulator is activated, i.e.. during installation.) An analog test
point provides signal level information to simplify installations.
Refer to Figure 1 for key component locations and terminal descriptions.
WARNING: If the main burglar panel has ground fault detection circuitry, it may be necessary to
power the EVD from a separate power supply, not from the auxiliary power on the burglar panel.
Alternately, the safe may be insulated from ground.
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rewoPoN ffOevitcAevitcA

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EVD-2•5401042•REVL•03/05
EVD-M TERMINAL CONNECTIONS
TERMINAL TERMINAL DESCRIPTION
NO. NAME
1 (+) Power Supply Connection, +12 VDC, nominal (See note 1)
2 (-) Power Supply Connection, 0 VDC (See note 1)
3 SPARE Spare Terminal Block Position
4 SHIELD Remote Pickup Cable Shield Connection or End of Line Resistor
(See note 2)
5 SIGNAL Remote Pickup Sensor Signal or End of Line Resistor (See note 2)
6 REF Remote Pickup Reference Signal or End of Line Resistor (See note 2)
7 RTN Accessory Return Connection (See note 3)
8 TEST Accessory Remote Test Input, Connect to RTN to Activate Test
(See note 3)
9 ALARM Accessory Remote Annunciator, Alarm (See notes 3, 4)
10 TAMPER Accessory Remote Annunciator, Tamper (See notes 3, 5)
11 COM Tamper Alarm Contact, Common
12 NC Tamper Alarm Contact, Normally Closed in NON-TAMPER STATE
13 NC Alarm Relay Contact, Normally Closed in NON-ALARM STATE
14 COM Alarm Relay Contact, Common
15 NO Alarm Relay Contact, Normally Open in NON-ALARM STATE
NOTES:
1. Observe polarity of power supply connections. Application of voltages greater than 18 VDC may
result in damage to unit.
2. If EVD-R remote pickups are installed, remove the factory installed, 10K Ohm, 1% end of line
resistors from pins 4-5 and pins 5-6. See Figures 2a and 4 for details.
3. Connections to optional RTA, Remote Test Annunciator, or dry contacts from any UL listed central
station test unit. See Figure 5 for details.
4. Remote annunciator terminal provides power-limited +12 VDC when alarm contact is in its ALARM
state. Limit current draw to 10mA.
5. Remote annunciator terminal provides power-limited +12 VDC when tamper alarm contact is in its
TAMPER state. Limit current draw to 10mA.
6. Pins 1-15 are power limited.
Figure 1. EVD-M CONTROLLER DETAILS

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EVD-2•5401042•REVL•03/05
NOTES:
1. Be sure that end of line resistor leads do not make contact with other connections.
2. If any EVD-R remote pickups are connected, remove end of line resistors. (Refer to
Figure 4.)
3. If the OUT terminals of another EVD-R are wired to the IN terminals of an EVD-R,
remove the factory installed end of line resistors on the EVD-R. (Refer to Figure 4.)
(a)
(b)
EVD-M
EVD-R
EVD-R REMOTE PICKUP
The EVD-R remote pickup detects attack vibrations with the same vibration sensing
components as the internal pickup on the EVD-M controller. The EVD-R amplifies and
transmits these vibrations to the EVD-M controller.
A cover tamper and a back tamper protect the EVD-R from cover removal or prying. If
either of these tampers activate or the tamper from the safe contact interface activates,
the EVD-R will signal a tamper condition to the EVD-M. During a tamper condition, the
EVD-R network is fully capable of signaling alarm conditions to the EVD-M control-
ler. If more than five EVD-R remote pickups simultaneously signal tamper to the EVD-M
controller, the EVD-M will signal an alarm.
The EVD-R contains a magnetically activated test switch that permits testing of each EVD-
R in the remote pickup network. The EVD-R provides terminals for the connection of dry
contacts from any Underwriters Laboratories listed safe contact.
Refer to Figure 3 for key component locations and terminal descriptions.
Figure 2. END OF LINE RESISTOR LOCATIONS

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EVD-2•5401042•REVL•03/05
Figure 3. EVD-R REMOTE PICKUP DETAILS
EVD-R TERMINAL CONNECTIONS
TERMINAL TERMINAL DESCRIPTION
NO. NAME
1 SHIELD Input Shield Connection from OUT SHIELD of Previous
Pickup or End of Line Resistor (See note 1)
2 SIGNAL Input Sensor Signal from OUT SIGNAL of Previous Pickup
or End of Line Resistor (See note 1)
3 REF Input Reference from OUT REF of Previous Pickup or End of
Line Resistor (See note 1)
4 NC Normally Closed Connection to Safe Contact (See notes 2,3)
5 COM Common connection to Safe Contact (See notes 2,3)
6 NO Normally Open Connection to Safe Contact (See notes 2,4)
7 TAMPER Tamper Connection to Safe Contact (See notes 2,5)
8 TAMPER Tamper Connection to Safe Contact (See notes 2,5)
9 SPARE Spare Terminal Block Connection
10 SHIELD Output Shield Connection to IN SHIELD of Next Pickup or
EVD-M SHIELD Connection
11 SIGNAL Output Sensor Signal to IN SIGNAL of Next Pickup or EVD-M
SIGNAL Connection
12 REF Output Reference to IN REF of Next Pickup or EVD-M REF
Connection
NOTES:
1. Remove all factory installed 10K Ohm, 1% end of line resistors from pins 1-2 and pins
2-3 of all EVD-R's except the LAST EVD-R remote pickup in the remote pickup
network. See Figures 2b and 4 for details.
2. Connections to optional dry contacts from any UL listed safe contact. See Figure 4 for
details.
3. If a safe contact is connected, remove the factory installed jumper from pins 4-5. Pins
4-5 must be NORMALLY CLOSED for the non-alarm state.
4. Pins 5-6 must be NORMALLY OPEN for the non-alarm state.
5. If safe contact tamper is connected, remove the factory installed jumper from pins 7-8.
Pins 7-8 must be NORMALLY CLOSED for the non-tamper state.
6. Pins 1-12 are power limited.

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EVD-2•5401042•REVL•03/05
Figure 4. RECOMMENDED WIRING EVD-2 SYSTEM
(Shown with 2 additional EVD-R remote pickups)
EVD-R EVD-M
EVD-R EVD-R

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EVD-2•5401042•REVL•03/05
RECOMMENDEDWIRING
Figure 4 shows the recommended wiring for an EVD-2 system with two additional EVD-R
remote pickups. (All wiring should be as specified in Table 1 or with UL listed
equivalents.)
1. Cable clamp knockout locations are shaded. Be sure to remove clamp from base
and to cleanly knock out cable openings in the cable clamp before feeding wire
through the clamp.
2. Without a safe contact, the EVD-M requires the standard, factory installed, cable
clamp, (Potter #5280104) for the configuration shown in Figure 4.
3. If a safe contact is not connected, the factory installed jumpers on pins 4-5 and pins
7-8 of the EVD-R must not be removed.
4. Wiring to or from remote pickups must be UL listed, shielded, twisted-pair cabling,
(See Table 1). The EVD-R remote pickup network wiring must not exceed
2000 feet.
5. Connections to UL listed control unit via UL listed, high security cable, or alternates
(See Table 1). See Figure 5b & 5c for 4 or 6 wire installation wiring.
6. Only the last EVD-R remote pickup requires the 10K Ohm, 1% end of line resistors.
Remove the factory installed end of line resistors from all other EVD-R's and the
EVD-M.
7. Connections to dry contacts from any UL listed safe contact. Last EVD-R is the
preferred unit for connections to the safe contact. However, all EVD-R remote
pickups accept safe contact wiring. Additional safe contacts can be wired into
other EVD-R remote pickups, the EVD-M or a UL listed tampered junction box. If the
safe contact is wired into the EVD-M, use the alternate cable clamp. (Potter
#5280105)
8. The EVD-M must be connected to a UL listed control unit or power supply capable
of providing nominal 12 VDC and standby power. 72 hours of standby power is
required for bank vault alarms. 4 hours of standby power is required for mercantile
alarms.
9. Connections to remote test annunciator or RTA and/or connection of dry contacts
from any UL listed central station test unit. Refer to Figure 5 for detailed information
on annunciator and remote test interconnections.
10. Terminals 1-12 on EVD-R are power limited.
11. Terminals 1-15 on EVD-M are power limited
Table 1. RECOMMENDEDWIRETYPES
Control Unit Connections Remote Pickup Connections Remote Test/ Annunciator
Connections
Potter #5210408
Required for UL Safe
Complete installations
Belden 8761 or Alpha 2401C Belden 8444 or Alpha 1174C
4 Wire Hookup
Belden 9512
General Cable C0762
6 Wire Hookup
Belden 9513
General Cable C0763

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EVD-2•5401042•REVL•03/05
RECOMMENDED CONTROL PANEL WIRING AND
REMOTE TEST AND ANNUNCIATOR CONNECTIONS
Figure 5a.
INSTALLATION
The EVD-2 System must be installed in accordance with all applicable local codes.
1. Mount EVD-M controller and any EVD-R remote pickups and wire according to Figures
4 and 5a. Remove end of line resistors from the EVD-M and all EVD-R's except the last
EVD-R in the remote pickup network. If no remote pickups are installed do not remove
the end of line resistors on the EVD-M.
2. Refer to Figure 5a for connection of a remote test annunciator, RTA, and/or a UL listed
central station test unit, if applicable.
3. Refer to Figure 4 for the connection of UL listed dry contacts, if applicable.
4. Verifyproperinstallation oftheendof lineresistors.Referto Figures2band4forsystems
with remote pickups.
5. Wire control unit connections and apply 12 VDC to the EVD-2 system. Refer to Figure 5a.
6. See Figure 5b & 5c for 4 or 6 wire installation wiring.
7. HighSecurity"B"cableandconnectorsto24hralarmzoneasshownareULrequirements
for UL safe complete installation

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EVD-2•5401042•REVL•03/05
RECOMMENDEDCONTROLPANELWIRINGWITH
SAFE DETECTOR ZONE AND 24 HOUR ALARM ZONE
(High security B cable and connections to 24 hr zone as shown are required
for UL safe compatible installations)
Figure 5b

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EVD-2•5401042•REVL•03/05
RECOMMENDEDCONTROLPANEL WIRINGWITHSAFEDETECTORZONE
ONLY (4 Conductor Shielded Cable Required)
Figure 5c

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EVD-2•5401042•REVL•03/05
SENSITIVITY ADJUSTMENTS
1. Adjust the EVD-M’s internal pickup sensitivity control, RV1, to 1/2 scale (12 o’clock
position). Refer to Figure 1 for adjustment location.
2. If remote pickups are installed, adjust the EVD-M’s remote pickup network
sensitivity control, RV2, to the minimum setting listed in Table 2. If no EVD-R’s are
installed, adjust RV2 to the minimum setting, fully counter-clockwise. Refer to
Figure 1 for adjustment location.
Table 2.
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3. Adjust accumulator rotary switch, S1, to desired setting. A setting of zero disables
the accumulator function. Refer to Figure 1 for adjustment location.
4. Perform simulated attack tests on all accessible surfaces that are protected by the
EVD-M and EVD-R’s. Strike the protected surfaces using a plastic mallet or the
plastic handle of a large screwdriver. An alarm condition (as indicated by the
status LED turning RED) must occur. Lightly scrape the blade of a screwdriver
next to the EVD-M and each EVD-R. After 15 seconds of continuous scraping,
an alarm condition (as indicated by the status LED turning RED) must occur. Be
sure the scraping generates a test point voltage greater than the
minimum constant noise level shown in Table 3. Adjust sensitivity settings
to the minimum needed to achieve desired level of response.
NOTE: Extreme care should be exercised so that the protected surfaces
are not marred or damaged while performing simulated attack tests.
A voltmeter can be connected to the analog test point and pin 2 of the field wiring
terminal block to aid the installer in adjusting the sensitivity controls. Refer to
Figure 1 for analog test point location.
Table 3. ANALOG TEST POINT LEVELS
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leveLesioNtneibmAmumixaMCDV02.0
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muminiMelgniS mralArofesioN )nOrotalumuccA( CDV07.0
muminiMelgniS mralArofesioN )ffOrotalumuccA( CDV52.1
5. With the system operating in a non-alarm state, verify the operation of all tampers.
A tamper condition is indicated by the status LED turning AMBER. If the system
is in alarm when a tamper condition occurs, the status LED will remain
RED, identifying the alarm condition. The tamper alarm remote annuncia-
tor and the tamper alarm contact always identify a tamper condition.

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EVD-2•5401042•REVL•03/05
TESTING
Applying a magnet to the side of the EVD-M controller, (see Figure 1), actuates a
magnetic switch and generates a test signal. Similarly, applying a magnet to the side of
an EVD-R remote pickup , (see Figure 3), actuates a magnetic switch and causes the
EVD-R to transmit a test signal to the EVD-M controller. In both cases, the EVD-M:
detects these alarm conditions, activates the alarm contacts, activates the alarm remote
annunciator, and illuminates the status LED in RED.
NOTE: Most ordinary door contact magnets will activate the test feature on the
EVD-M and the EVD-R.
System operation can also be verified from a remote location by use of an optional RTA
and/or a UL listed central station test unit. Operating a normally open test switch
generates a test signal which causes the EVD-M to signal an alarm condition.
NOTE: Always test unit prior to placing unit into service. Unit must be tested
at least once a year.
SAFECONSTRUCTIONREQUIREMENTS
Table 4. Maximum Linear Distances from Detector to Any Point on the Pro-
tected Surface
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muminiMpukciPlacoL 1VR,gnittesytivitisneS muminiMpukciPetomeR 2VR,gnitteSytivitisneS
sefaSleetS "4/1muminiM:ydoB "2/1muminiM:rooD sehcni69esiwkcolcretn
uoCylluF2elbaTotrefeR
sefaSetisopmoC "3revoleetSeguaG61muminiM:ydoB lairetaMetisopmoC
"3revoleetS"4/1mumin
iM:rooD lairetaMetisopmoC
sehcni011esiwkcolcretnuoCylluF2elbaTotrefeR

17
EVD-2•5401042•REVL•03/05
RECOMMENDEDDETECTORLOCATIONS
Single Detector Applications
All safe applications must have at least an
EVD-M or an EVD-R on the body of the
safe. When only one detector is required
on a safe, mount the detector on the
exterior of the safe on the door hinge
side, near the front edge and centered
within the height of the safe. (Ideally,
mount the detector’s sensor center point
2 inches in from the front edge of the
safe on the centerline of the safe’s
height, refer to Figure 11). Figure 6.
shows the recommended detector
location of a safe application requiring
one detector. Safes with double doors
require a minimum of two detectors,
even if the dimensions of the safe
conform to the requirements for the
use of a single detector.
Two-Detector Applications
When two detectors are required on a
safe, mount the first detector as recom-
mended for a single detector installation.
Mount the second detector on the
opposite side of the safe, at the same
height and with the same front edge
offset as the first detector. Safes with
double doors that conform to the
dimensional requirements for the
use of one or two detectors should
be protected in this fashion. Figure 7.
shows the recommended detector
locations of a safe application requiring
two detectors. Figure 8. shows the
recommended detector location(s) of a
safe application with double doors.
Multiple Detector Applications
When more than two detectors are
required on a safe, mount the first two
detectors as recommended for a two-
detector application. Mount the remaining
detectors on the remaining surfaces,
centered and spaced evenly to ensure
complete detector coverage. Alternately,
mount a detector centrally on the safe
door and the remaining detectors centrally
on the remaining surfaces, evenly
spaced.
Figure 6.
Figure 7.
Figure 8.
NOTE: If any recommended detector location is not physically accessible,
contact Potter's technical support for assistance.

18
EVD-2•5401042•REVL•03/05
DETERMININGTHENUMBEROFDETECTORSFORASAFEAPPLICATION
Refer to column one in Table 4 for the type of the safe in the application. In column two
find the maximum linear distance from a detector to any point on the protected surface.
This distance is the detector range. Next, refer to column one, (for steel safes), or
column two, (for composite safes), in Table 5. Find the range of distances based upon
the detector range that corresponds to the safe in the application. Using the row of this
range of distances, determine the number of detectors from column three, (if safe has
a single door), or from column four, (if safe has double doors). In some single detector
applications, the EVD-2 system may be used to protect multiple safes via a combination
of an EVD-M and multiple EVD-R remote pickups. For applications with a larger distance
than that shown in Table 5, consult Potter’s technical support for assistance.
Table 5.
mumixaM ecnatsiDraeniL tnioPynAotrotceteDmorf fosecafruSdetcetorPno sefaSleetS *
mumixaM ecnatsiDraeniL tnioPynAotrotceteDmorf fosecafruSetcetorPno sefaSetisopmoC ** srotceteDforebmuN etelpmoCrofderiuqeR foegarevoC sefaSrooDelgniS
srotceteDforebmuN etelpmoCrofderiuqeR foegarevoC sefaSrooDelbuoD
"69=<D"011=<D12
"291=<D<"69"022=<D<"01122
"882=<D<"291"033=<D<"02233
"483=<D<"882"044=<D<"03344
"084=<D<"483"055=<D<"0
4455
NOTE: D=Maximum Linear Distance
*Steel Safe Construction:
Body: Minimum 1/4" Steel
Door: Minimum 1/2" Steel
**Composite Safe Construction:
Body: Minimum 16 Gauge Steel over 3" Composite Material
Door: Minimum 1/4" Steel over 3" Composite Material

19
EVD-2•5401042•REVL•03/05
DETERMININGTHE MAXIMUMLINEAR DISTANCEON ASAFE
A rule of thumb for estimating the maximum linear distance from the recommended
detector location to any point on the protected surface is:
Example: h = 62" w = 55" d = 29"
1. Compute X1 = h + w 1. X1 = 62"+ 55" (X1 = 117")
2. Compute X2 = 2d + w 2. X2 = (2 x 29") + 55" (X2 = 113")
3. Find X = minimum ( X1, X2 ) 3. X = 113"
4. Compute J = w + d 4. J = 55" + 29" (J = 84")
5. Find D = maximum ( X, J ) 5. D = 113"
Where: h = Safe Height
w = Safe Width
d = Safe Depth
D = Maximum Linear Distance
This rule of thumb is valid for most available safe sizes. However, if any one dimension
is very large or very small when compared to the other two dimensions, the safe may not
follow this rule. In those cases, contact Potter’s technical support for assistance. Table 6
lists some common safe dimensions and their maximum linear distances when detectors
are installed in recommended locations.
Table 6. Typical Safe Exterior Dimensions and Maximum Linear Distances
thgieH
)sehcnI(
htdiW
)sehcnI(
htpeD
)sehcnI(
emuloV
).tf.uc(
raeniLmumixaM
ecnatsiD
)sehcnI(
00.5200.1200.1283.600.
64
00.2300.5200.5275.1100.75
00.2400.1300.9258.1200.37
00.2500.1300.9250.7200.38
00.2600.1300.9262.2300.98
00.2600.5500.9232.
7500.311
00.4600.1300.9203.3300.98
00.2700.5300.9292.2400.39
00.9700.3400.3378.4600.901

20
EVD-2•5401042•REVL•03/05
Figure 9. WALL PROTECTION DIAGRAM
TYPICAL UL COMPLETE SAFE INSTALLATIONS
1. Install in accordance with Underwriter Laboratories’ standard UL 681.
2. Install EVD-M and EVD-R detectors in recommended locations at recommended
spacings.
3. Install UL listed, high security contacts on the exterior of the safe or UL listed, ordinary
use contacts on the inside of the safe.
4. Wire detectors and safe door contacts as shown in Figures 4 and 5a.
5. Listed power supply or control unit must provide at least 4 hours of standby power for
mercantile alarms and 72 hours of standby power for bank vault alarms.
TYPICAL UL COMPLETE VAULT INSTALLATIONS
1. Install in accordance with Underwriter Laboratories’ standard UL 681.
2. Install EVD-M and EVD-R detectors on interior walls, ceilings, and floors, spaced as
shown in figure 9. Refer to Table 7 for maximum spacing on various materials.
3. A detector must be installed on the vault door if the net steel thickness is less than
1 1/2 inches.
4. Wire detectors and door contacts as shown in Figures 4 and 5a.
5. Listed power supply or control unit must provide at least 4 hours of standby power for
mercantile alarms and 72 hours of standby power for bank vault alarms.
EVD-2 WALL PROTECTION
Figure 9 shows the rectangular areas of 100% coverage when detectors are installed
adjacent to one another. The detector spacing is the sensor center point distance between
adjacent detectors. The detector spacing is the same as the width of the rectangular area
of 100% coverage. Table 7 lists the dimensions of the rectangular areas of 100% coverage
on continuous surfaces for several materials and sensitivity settings. When a surface
extends around a corner via a solid connection, detector coverage extends into that
surface, but the coverage is reduced to 3/4 of the remaining detector range. All joints,
cracks, and corners dampen structure borne vibrations. Vibration transfer across these
imperfections must be tested to ensure complete coverage within the detector’s range.
Modular constructions require one detector per panel and must be constructed of the
materials listed in Tables 4 and 7.