Fluke ULD-400, ULD-410, ULD-420 Data Sheet

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ULD-400 Series Ultrasonic Leak Detectors

The ultimate ultrasonic diagnostic tool

HVAC/R, mechanical and electrical inspection and troubleshooting

When equipment begins to fail due to an air or gas leak or vibration, or electrical discharge, the leakage point emits an ultrasonic sound wave that is above the natural range of human hearing. The ULD-400 Series Ultrasonic Leak Detectors convert this ultrasonic sound into a signal that can be used to pinpoint the exact location of the equipment failure. See the strength of the leak clearly on the large LCD display bargraph and identify the source of the leak by listening to the converted audible sound emitted via the headphones. When working in unpressurized systems, or the pressure is not sufcient enough to detect or verify a leak with the Receiver alone, use the Transmitter to generate the ultrasonic signal (included with the ULD-420 kit). In extremely noisy environments where there is strong ultrasonic noise generated by running machinery or equipment, the Receiver’s lter function can lter out up to three main noise frequencies which would otherwise hide the noise of the fail.

Features

• 2.5” LCD display with

bargraph

• 20 kHz to 90 kHz frequency

range: optimal range for detecting a variety of leakage events

• Three filters to remove main

noise frequencies in noisy environments

• Adjustable Receiver

sensitivity and Three Transmitter signal strengths

for accurate leak pinpointing

• Quality headphones to help

identify the source of the leak

• Parabola accessory directs the

ultrasound towards the sensor

• Detachable Tubular Extension

provides additional reach in hard to reach areas

The ULD-400 is ideal for inspecting:

• Compressed air or other gases*

• Plumbing

• Electrical and mechanical systems

• Valves, tanks and pipes

• Heat exchangers, boilers and condensers

• Air conditioning and refrigeration systems

• Motors and machinery

* Do not use ULD-400 for combustible

gas leak detection. The Amprobe GSD600 can be used for propane and methane gas leak detection.

Microphone

Large color LCD screen

Signal

strength

bar graph

Auto-lter to lter out competing

ultrasonic

noise

sensor

ULD-400-R

Receiver

Speaker

Sensitivity level bar graph

Sensitivity level adjustment

ULD-400-T

Transmitter

LEDs: high/ medium/ low signals

Signal level adjustment

Safety Certication

All Amprobe tools, including the Amprobe ULD-400 Series, are rigorously tested for safety, accuracy, reliability, and ruggedness in our state-of-theart test lab. In addition, Amprobe products that measure electricity are listed by a

3rd party safety lab, either UL or CSA. This system assures that Amprobe products meet or exceed safety regulations and will perform in a tough, professional environment for many years to come.

The ULD-400 Series is ideal for industrial applications.

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Facilities

Maintenance

Air

Compressors

Industrial Plumbing

Leak not pressurized? No problem.

When a leak is not pressurized sufciently, or located in an unpressurized system, it is not emitting enough ultrasonic sound for the Receiver to detect it. In these circumstances, use the Transmitter to emit the ultrasonic sound readable by the Receiver. The Transmitter is programmed with three signal levels for precise pinpointing of leaks.

The Transmitter can be used to nd air and water leaks in:

• Automobile windshields and windows

• Fluid and gas tanks

• Building windows, doors or roofs

Find leaks even in noisy environments

In some situations, there might be strong ultrasonic noise generated by running machinery, motion sensors or other equipment. This noise will cause the Receiver to read the maximum signal strength of this noise interference on the display regardless of the sensitivity settings and make it unusable for detecting leaks. The Filter function was designed for these situations.

Simply press the Filter button and the Receiver will automatically detect and and lter out up to three main noise frequencies.

Motors and

Machinery

Construction

Visual and audible leak pinpointing

While scanning a target area with the Receiver’s microphone sensor, the displayed bargraph will indicate proximity to the source of the leak. Plug the headphones into the Receiver to audibly hear the leak and verify its source. For example, air leaks will produce more of a hissing sound while electric discharge manifests in a ticking sound.

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