Louroe Electronics Verifact L-DT Manual

Louroe Electronics Mikrofon Verifact L-DT

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The Model Verifact L-DT is a bi-directional electret

condenser microphone with built-in preamp. It can pick

up normal sounds approximately 10 ft. away. Sound

pickup on both sides of the microphone is lower than

the front and back where the microphones are located.

Verifact L-DT produces low impedance line level

output and can be located up to 1,000’ from the Louroe

base station. It is primarily designed for ceiling

mounting but can also be installed on any type of flat

surface. The Verifact L-DT is compatible with all

Louroe Audio Base Stations or Louroe Audio Interface

Adapters.

PAGE 1 OF 4

NOTE:

Verifact L-DT Microphone is not recommended

for outdoor use or in areas with high moisture

content.

DESCRIPTION

SPECIFICATIONS

Sensitivity (mic)

Frequency response

Output

Current drain

-45dB

300 Hz to 10kHz

10mA

Supply voltage 12 Vdc

Microphone housing High impact ABS

Dimensions

Weight

Shipping Weight

4 3/8”L x 2 1/4”W x 1 1/5”H

2.5 oz

1 lb

Line Level (0 dB, 1KW @ 1kHz)

VERIFACT L-DT

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

6955 VALJEAN AVE, VAN NUYS, CA 91406

PH: (818)994-6498 / FAX: (818)994-6458

/ www.louroe.comtechsupport@louroe.com

L_DT_mic-inst_12/14

MIC ELEMENTS

IMPORTANT NOTICE

When this equipment is used as part of an

audio monitoring system, the law requires

that the public be given notice of AUDIO

MONITORING ON THE PREMISES. A

decal notice is included with each

microphone shipped.

Federal Law References:

Federal Regulations, US Code, Title 18.

Crime and Criminal Procedure, Sec 2510.

AUDIO

MONITORING

These Premises

WARRANTY

LOUROE ELECTRONICS warrants that at the time of shipment products manufactured by LOUROE ELECTRONICS to be free of defects in material and workmanship.

Should a defect appear within one year (12 months) from date of shipment, LOUROE ELECTRONICS will, at its sole discretion, repair or replace the defective equipment.

This equipment shall not be accepted for repair or return without prior notification by LOUROE ELECTRONICS .

This warranty does not extend to any Louroe product that has been subjected to improper or incorrect installation, misuse, accident, or in violation of installation

instructions provided by LOUROE ELECTRONICS.

Returned shipments to LOUROE ELECTRONICS shall be at customer’s expense. LOUROE ELECTRONICS will return the equipment prepaid via best way.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458

website: www.louroe.com e-mail: sales@louroe.com

(818)

MICROPHONE CONNECTION (See interconnection diagram in the next page)

If using West Penn 452 or equivalent with same color code, connect:

1. Red wire (12 Vdc) connects to terminal A of microphone terminal block

2. Black wire (audio out) connects to terminal B of microphone terminal block

3. Bare wire (ground) connects to terminal C of microphone terminal block

INSTALLATION TIP: If the area to be monitored for audio is noisy or has background disturbances, the

microphone elements should be positioned facing the subjects (front and back). Since the unit is bi-directional,

the sound from the subjects facing the microphone elements are more louder than background noise coming

from the sides of the microphone.

ELECTRICAL CONNECTION

A represents +12 Vdc Power

B represents Audio Output

C represents Ground

A 3-pin terminal block is located on the back of the microphone housing, marked A, B, C.

CONNECTING VERIFACT L-DT MICROPHONE TO A LOUROE™ BASE STATION OR AUDIO

INTERFACE ADAPTER

CONNECTING VERIFACT L-DT MICROPHONE TO OTHER AUDIO DEVICES.

If a Louroe audio base station is not used and microphone is being connected directly to another receiving

device from other manufacturers, 12 Vdc power must be applied to terminals A and C. (A is positive, C is

negative). Terminals B and C of microphone (C is common) go to the “Audio In” or “Line in” of the audio

source. A shielded cable is recommended.

INSTALLATION TIPS

1. Use overall shielded audio cable only. West Penn 452, Belden 8451 or equivalent.

Unshielded cable is not satisfactory for sound system.

2. When used at a cash register checkout, microphone should be installed between the casher and the customer with the

microphone element facing them.

3. Avoid installing microphone near air vents, air conditioners, fans and other equipment that generate

high sound and air pressure.

4. If microphone is installed in a police interview room, room should be conditioned with any type of carpeting, acoustical

ceiling tiles, acoustical foam, etc. to reduce echo. This will enhance the quality of live and recorded audio.

5. When using a base station such as the APR-1 and microphone should have a barrier or solid wall between them in

order to avoid audio feedback, especially when they are in close proximity to each other. If no barrier, microphone

should be at least 25’ from APR-1 to avoid acoustical feedback.

The Verifact L-DT has 2 mounting holes for surface mounting to a ceiling or other flat surface. It should be

positioned so that the front and back microphone elements are 4’ to 8’ from the area of desired coverage.

All Louroe audio base stations and Interface Adapters have corresponding terminal blocks marked A, B, C.

Connect other end of cable as follows:

1. Red wire from microphone connects to pin A of Base Station (12Vdc)

2. Black wire from microphone connects to pin B of Base Station (Audio Output)

3. Bare wire from microphone connects to pin C of Base Station (Ground)

INSTALLATION AND OPERATING INSTRUCTIONS

Page 2 of 4

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458

website: www.louroe.com e-mail: sales@louroe.com

(818)

L_DT_mic-inst_12/14

Produkt Specifikationer

Mærke:	Louroe Electronics
Kategori:	Mikrofon
Model:	Verifact L-DT
Type:	Mikrofon til overvågningskamera
Produktfarve:	Grå
Forbindelsesteknologi:	Ledningsført
Oprindelsesland:	USA
Driftsspænding:	12 V
Mikrofon frekvens:	300 - 10000 Hz
Mikrofonretningstype:	Retningsuafhængig/tovejsmikrofon
Strømforbrug:	10 mA
Mikrofon sensitivitet:	-45 dB
Mikrofon vægt:	70.9 g
Antal produkter inkluderet:	1 stk
Dybde (efter britisk standard):	4.375 "
Højde (efter britisk standard):	1.2 "
Bredde (efter britisk standard):	2.25 "