Summary of the content on the page No. 1
®
®
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 (800) 289-9100 or FAX (800) 289-9150
International Customers: Tel (1-559) 292-1981 or FAX (1-559) 348-1120
PELCO
Summary of the content on the page No. 2
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 ..............................................................
Summary of the content on the page No. 3
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
Summary of the content on the page No. 4
2.0 DESCRIPTION The EH4712DB and EH4718DB environmental enclosures are constructed of alu- minum. 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 Environmenta
Summary of the content on the page No. 5
3.0 INSTALLATION 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 insta
Summary of the content on the page No. 6
SCREW (2) ENCLOSURE LID CAMERA SLED ENCLOSURE BODY FOAM FILTER VENT GRILL VENT COVER PLATE WASHER (2) SCREW (2) Figure 1. EH4712DB/EH4718DB Exploded Assembly Diagram 6 Pelco Manual C1446M-B (7/98)
Summary of the content on the page No. 7
10.Two vent cover plates with gaskets affixed come attached to the camera sled as loose equipment. Locate them for use in the following steps. On the bottom of the enclosure, remove two screws and washers that attach the vent grill and foam filter to the front of the enclosure. Using the same screws and washers, attach a vent cover plate and gasket to the front of the enclosure. 11. On the bottom of the enclosure, remove two screws and washers that attach the vent grill (without foam filter) to
Summary of the content on the page No. 8
DIFFERENT POWER REQUIREMENTS 1. Bring in wires for AC high and AC neutral for the camera. If you are using 24 VAC, refer to Table A to determine the size of wire to use. 2. Refer to Figure 2 and connect the wires as follows: a. Connect AC high to connector 9 of the 10-connector INPUTS terminal block. b. Connect AC neutral to the connector 10 of the 10-connector INPUTS terminal block. 3. Add up the wattages of the enclosure’s accessories. Refer to Table B for watt- ages of the accessories. 4. Det
Summary of the content on the page No. 9
Figure 2. EH4712DB/EH4718DB Series Input Wiring Diagram Pelco Manual C1446M-B(7/98) 9
Summary of the content on the page No. 10
Table A. 24 VAC Wiring Distances The following are the recommended maximum distances for 24 VAC applications and are calculated with a 10-percent voltage drop. (10-percent is generally the maxi- mum allowable voltage drop for AC-powered devices.) EXAMPLE: An enclosure that Wire Gauge requires 80 vA and is installed 35 20 18 16 14 12 10 feet (10 m) from the transformer 10 283 451 716 1142 1811 2880 would require a minimum wire (86) (137) (218) (348) (551) (877) gauge of 20 Awg. 20 141 225 358 5
Summary of the content on the page No. 11
Models with Heater-Blower (-1/-2/-3) - Refer to Figure 2 and wire the motorized zoom lens control as follows: a. Connect or wire the lens control from the camera to the LENS or LENS CONTROL connector on the circuit board. b. Wire the lens controller to the 10-connector INPUTS terminal on the cir- cuit board as follows: Lens Common - Connector 1 Focus - Connector 2 Zoom - Connector 3 Iris - Connector 4 Preset Common - Connector 5 Preset Focus - Connector 6 Preset Zoom - Connector 7 Preset High -
Summary of the content on the page No. 12
4.0 OPERATION Models with Heater-Blower (-1/-2/-3) Only - The fan thermostat on the circuit board is set to turn on the fan between 77° and 93°F (25° and 34°C) and to turn off the fan between 62° and 78°F (17° and 26°C). The heater/defroster thermostat on the circuit board is set to turn on the heaters (and defroster, if installed) between 42° and 58°F (6° and 14°C) and to turn off the heaters (and defroster, if installed) between 72° and 88°F (22° and 31°C). 12 Pelco Manual C1446M-B (7/98)
Summary of the content on the page No. 13
5.0 MAINTENANCE Perform the following maintenance at regularly scheduled intervals to prolong the operational life and appearance of the equipment. 1. Clean the window with a mild nonabrasive detergent in water and a soft cloth to maintain picture clarity. 2. If your enclosure has a blower, clean the foam filter (if installed) as follows: On the bottom front of the enclosure, remove the two screws and washers in the vent grill. Remove the vent grill and take out the filter. Clean the filter wit
Summary of the content on the page No. 14
6.0 SPECIFICATIONS ELECTRICAL Input Voltage: 24, 120 or 230 VAC, 50/60 Hz Electrical Connections: One each of the following: 3-connector terminal block for power input 6-pin lens connector 9-connector terminal block for lens wiring 10-connector terminal block for camera/lens wiring 2-connector terminal block for spare connections 3-pin socket for camera power input 2-pin socket for optional camera power input 2-pin socket for blower 2-pin socket for defroster 4-pin socket for heaters Input Powe
Summary of the content on the page No. 15
GENERAL Environment: Indoor/outdoor -10° to 120°F (-23° to 49°C) Can be modified for use in a marine or high-moisture environ- ment. (Design and product specifications subject to change without notice.) 2.00 A (5.08) EH4712DB EH4718DB 1/4-20 A 7.25 (18.42) 9.25 (23.50) B 16.2 (41.15) 21.2 (53.84) C 13.3 (33.78) 18.3 (46.48) B 3.50 5.00 (8.89) (12.70) 4.00 (10.16) 6.87 (17.45) C NOTE: EH4712DB SERIES DOES NOT HAVE VENTS IN BOTTOM OF ENCLOSURE NOTE: VALUES IN PARENTHESES ARE CENTIMETERS; ALL OT
Summary of the content on the page No. 16
7.0 WARRANTY AND RETURN INFORMATION WARRANTY Pelco will repair or replace, without charge, any merchandise proved defective in material or workmanship for a period of one year after the date of shipment. Exceptions to this warranty are as noted below: • Five years on FT/FR8000 Series fiber optic products. ® • Three years on Genex Series products (multiplexers, server, and keyboard). ® • Three years on Camclosure and fixed camera models, except the CC3701H-2, CC3701H-2X, CC3751H-2, CC3651H-2X, M
