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Understanding Acoustic Leak Detection
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Contact SubSurface Leak Detection
Standard Items
Amplifier with Meter Display and Filter Controls
Ground Microphone and Handswitch
Aviation-Grade Stereo Headphones
Heavy-Duty ABS Plastic Carrying Case
Standard Accessories
Magnet Base
3-Section Contact Rod
Nut Driver (to remove base)
Instruction Manual (not shown)

Features

Large meter display (with backlight) of sound loudness, allowing the user to pinpoint the exact leak location.

Light weight amplifier, weighing only 31 ounces, with a padded carrying case and a strap.

Six selectable filters, split into three “low side” filters (100Hz, 200Hz, or 400Hz) and three “high side” filters (600Hz, 800Hz, or 1200Hz).

“Limitter” switch which cuts off all loud noises greater than 110dB. If you drop the sensor, you won´t hurt your hearing.

“Filter-Thru” switch, which turns OFF all of the amp’s filters, allowing the user to hear all sounds from 50Hz to 15,000Hz.

High-sensitivity ground microphone and low “electronic noise” amplifier combine to offer the very best quality sound for leak detection.

Three accessories for attachment
to the sensor:

  • Ground plate for pinpointing on streets/slabs
  • Magnet base for surveying at hydrants/valves
  • Contact rod for surveying at meters/fittings

Download
PDF of
LD-12
brochure
(313KB)
Download PDFof LD-12 brochure (333KB)

More LD-12 Information:

LD-12 Operating Instructions

How to Pinpoint for Leaks
with the LD-12

Comparison of the LD-15 Leak Survey Instrument With the LD-12 Water Leak Detector

List of LD-12 Users

5 Year Warrranty

Specifications

AMPLIFIER

Input Impedance: 50k ohms

Output Impedance: 15 ohms

Amplification: 62 dB +/- 3dB

Frequency Range:
1)
100Hz to 1200Hz (13 dB)
with Filter-Thru OFF
2) 15Hz to 30,000Hz (13 dB)
with Filter-Thru ON

Power: 6 AA dry cell batteries

Power Consumption:
1) 70 mA or less with backlight ON
2) 35 mA or less with backlight OFF

Battery Life:
1)
14 hours with backlight ON
2) 28 hours with backlight OFF

Weight: 31 ounces (885 g)

Size: 6.7" x 2.8" x 4.1"
(170mm x 70mm x 103mm)

ABS CARRYING CASE

Weight (full): 15 lb. (6.81 Kg)

Size: 18.5" x 14.6" x 7.5"
(470mm x 371mm x 190mm)

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© 2006 SubSurface Leak Detection, Inc.

Download PDFof LD-7 brochure (304kb) Get more LD-7 Product information Download PDFof LD-12 brochure (336kb) Go to LD-12 warranty page Go to Contact Us page Go to LD-7 warranty page Go to Contact Us page Download PDFof LD-12 brochure (333KB) Go to LD-12 Warranty