Pelco EH4718DB User Manual 2

®

®

PELCO

EH4712DB/

EH4718DB Series

Environmental

Enclosures

Installation/

Operation Manual

C1446M-B (7/98)

Pelco • 3500 Pelco Way, Clovis • CA 93612-5699 USA • www.pelco.com

In North America and Canada: Tel [phone] or FAX [phone]

International Customers: Tel [phone] or FAX [phone]

CONTENTS

Section Page

1.0 GENERAL .................................................................................................. 3

1.1 IMPORTANT SAFEGUARDS AND WARNINGS ............................... 3

2.0 DESCRIPTION ..........................................................................................4

2.1 MODELS ............................................................................................4

2.2 CERTIFICATIONS ............................................................................. 4

3.0 INSTALLATION .......................................................................................... 5

3.1 ENCLOSURE MOUNTING ................................................................5

3.2 MARINE OR HIGH-MOISTURE ENVIRONMENT

(EH4718DB SERIES ONLY) ..............................................................5

3.3 WIRING ............................................................................................. 7

3.3.1 Camera ................................................................................... 7

3.3.2 Power ......................................................................................7

3.3.2.1 EH4712DB/EH4718DB Model Only ........................... 7

3.3.2.2 Models with Heater-Blower (-1/-2/-3) .........................7

3.4 CAMERA/LENS INSTALLATION .......................................................8

3.4.1 Camera Mounting ................................................................... 8

3.4.2 Camera Wiring (Except Power) ............................................... 8

3.4.3 Camera Wiring (Power) .......................................................... 11

3.4.3.1 EH4712DB/EH4718DB Model Only .......................... 11

3.4.3.2 Models with Heater-Blower (-1/-2/-3) ........................11

3.5 FINAL INSTALLATION ...................................................................... 11

4.0 OPERATION .............................................................................................12

5.0 MAINTENANCE ........................................................................................13

5.1 SERVICE MANUAL ..........................................................................13

6.0 SPECIFICATIONS .................................................................................... 14

7.0 WARRANTY AND RETURN INFORMATION ........................................... 16

LIST OF ILLUSTRATIONS

Figure Page

1 EH4712DB/EH4718DB Exploded Assembly Diagram ....................... 6

2 EH4712DB/EH4718DB Series Input Wiring Diagram ........................9

3 EH4712DB/EH4718DB Dimension Drawing .....................................15

LIST OF TABLES

Table Page

A 24 VAC Wiring Distances .................................................................. 10

B Accessory Wattages ......................................................................... 10

REVISION HISTORY

Manual # Date Comments

C1446M 6/96 Original version.

C1446M-A 6/97 Revised to include EH4712DB Series models.

C1446M-B 7/98 Added marine/high moisture environment modification

procedure. Removed defroster kit and service information.

2 Pelco Manual C1446M-B (7/98)

1.0 GENERAL

1.1 IMPORTANT SAFEGUARDS AND WARNINGS

Prior to installation and use of this product, the following WARNINGS should be
observed.

1. Installation and servicing should only be done by qualified service personnel
and conform to all local codes.

2. Unless the unit is specifically marked as a NEMA Type 3, 3R, 3S, 4, 4X, 6, or
6P enclosure, it is designed for indoor use only and it must not be installed
where exposed to rain and moisture.

3. Only use replacement parts recommended by Pelco.

4. After replacement/repair of this unit’s electrical components, conduct a resis­tance measurement between line and exposed parts to verify the exposed
parts have not been connected to line circuitry.

5. The installation method and materials should be capable of supporting four
times the weight of the enclosure, pan/tilt, camera and lens combination.

The product and/or manual may bear the following marks:

This symbol indicates that dangerous voltage constituting a
risk of electric shock is present within this unit.

This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this
unit.

CAUTION:

RISK OF

ELECTRIC SHOCK.

DO NOT OPEN.

TO REDUCE THE RISK OF ELECTRICAL SHOCK,

DO NOT REMOVE COVER. NO USER-

SERVICEABLE PARTS INSIDE. REFER SERVICING

TO QUALIFIED SERVICE PERSONNEL.

CAUTION:

Please thoroughly familiarize yourself with the information

in this manual prior to installation and operation.

Pelco Manual C1446M-B (7/98) 3

2.0 DESCRIPTION

The EH4712DB and EH4718DB environmental enclosures are constructed of alu­minum. The enclosures are installed by attaching the top of the unit to a mounting
surface. A door in the bottom drops open for access during installation or to make
camera/lens adjustments.

You can install cameras with either fixed focal length lenses or motorized zoom
lenses. All models have an adjustable camera sled to accommodate different sizes
of cameras and lenses.

2.1 MODELS

EH4712DB Environmental enclosure with bottom-opening door. 12-inch

(30.48 cm) length.

EH4712DB-1 EH4712DB with 120 VAC thermostatically controlled heater

and blower.

EH4712DB-2 EH4712 DB with 24 VAC thermostatically controlled heater and

blower.

EH4712DB-3 EH4712DB with 230 VAC thermostatically controlled heater

and blower.

EH4718DB Environmental enclosure with bottom-opening door. 18-inch

(45.72 cm) length.

EH4718DB-1 EH4718DB with 120 VAC thermostatically controlled heater

and blower.

EH4718DB-2 EH4718DB with 24 VAC thermostatically controlled heater and

blower.

EH4718DB-3 EH4718DB with 230 VAC thermostatically controlled heater

and blower.

2.2 CERTIFICATIONS

The products identified below have been tested and certified for agency compli­ance as noted.

Model CE FCC UL CSA/cUL

EH4712DB X

EH4712DB-1

EH4712DB-2 X

EH4712DB-3 X

EH4718DB X

EH4718DB-1

EH4718DB-2 X

EH4718DB-3 X

Applicable CE, FCC, UL, and CSA/cUL directives/standards:

• 93/68/EEC–CE Mark Directive

89/336/EEC, 92/31/EEC–Electromagnetic Compatibility (EMC) Directives

EN 55022: 1984 Class B–Radio-frequency emissions limits
EN 50082-2: 1992–Immunity standard

IEC 801-2: 1984–ESD immunity
IEC 801-3: 1984–Radiated field immunity
IEC 801-4: 1988–Electrical transients

Additional applicable standards:

Agency Compliance Certification

• NEMA Type 3R

• IP 32

4 Pelco Manual C1446M-B (7/98)

3.1 ENCLOSURE MOUNTING

1. Place the enclosure on a flat surface with the bottom facing up. Open the door.

2. Remove the camera sled from the rail (refer to Figure 1 for the location of the
camera sled):

a. Loosen the screws.

b. Slide the sled so that the screws are in the large part of the mounting

holes.

c. Remove the sled.

d. Remove the parts tied to the sled.

3. If you are going to wire the enclosure with cable, remove the wiring glands and
nuts from the parts bag and install them in the top of the enclosure.

If you are going to wire the enclosure using conduit, you do not need the
wiring glands and nuts. Install the conduit in the top of the enclosure. If the
enclosure is installed outdoors, make sure the conduit is sealed to prevent
water from getting inside.

4. There are two threaded mounting holes on the top of the enclosure. Mount the
enclosure to a pan/tilt assembly or fixed mount with 1/4-20 screws with threads
that do not exceed 5/8 of an inch (1.59 cm) in length (not supplied with the
enclosure).

3.0 INSTALLATION

Proceed to Section 3.2, MARINE OR HIGH-MOISTURE ENVIRONMENT.

3.2 MARINE OR HIGH-MOISTURE ENVIRONMENT

(EH4718DB SERIES ONLY)

CAUTION:

When
opening the enclosure
lid, be careful not to
stress or otherwise
damage the electrical
wires or connectors
inside the enclosure

To install the enclosure in a marine or high-moisture environment, make the follow­ing modifications to the enclosure (refer to Figure 1):

1. Remove two screws that attach the enclosure lid to the rear plate of the enclo­sure body and carefully open the enclosure lid a few inches.

2. Remove the plastic barrier cover over the power supply section of the
circuit board.

before disconnecting
them.

3. Disconnect two electrical connectors from the circuit board and open the en­closure lid completely.

4. Remove the four screws and washers that attach the fan to the rear plate of
the enclosure body.

5. Turn the fan around so that it blows toward the viewing window (refer to the
arrows on the fan).

6. Reattach the fan to the rear plate of the enclosure body.

7. Reconnect the electrical connectors to the circuit board.

8. Reinstall the plastic barrier cover over the power supply section of the
circuit board.

9. Close the enclosure lid and reattach it to the rear plate of the enclosure body
with two screws.

Pelco Manual C1446M-B (7/98) 5