Monarch Instrument AG-500 - Manual (Page 4)

UltraPro AG-500 OVERVIEW
The UltraPro AG-500 is a unique diagnostic test instrument that has achieved outstanding results in
reducing downtime and maintenance related costs. Through the detection of ultrasonic sound, the
UltraPro AG-500 is used to inspect and check such items as ignition systems, vacuum problems, air
brake systems, bearings, gear trains, cam and tappet assemblies, internal combustion engine valving
and piston blow-by, gaseous piping and ducting, seals in refrigerated van bodies, air ducts, hydraulic
systems, Freon leaks, and many other components.
The UltraPro AG-500 System consists of an ultrasound receiver, ultrasound tone generator, air
probe, contact probe and headphones. The receiver is sensitive only to ultrasonic energy in the
frequency range of 36,000 to 44,000 Hz. The energy is amplified by internal circuitry and converted
to audible sounds, available through the headphones, and an intensity reading on the red LED
display. The ultrasonic receiver is used with the tone generator to check for faulty seals in non-
pressurized enclosures like automotive cabin windows/doors/roofs, etc. It is fast and easy to use and
takes very little training! The tone generator “fills the item being tested with noise” for the receiver
to detect at the leak source.
The UltraPro AG-500 System
1. UltraPro AG-500 Receiver
2. Tone Generator
3. Two Probes: 12” air probe and a precision
length contact probe
4. Two Headphone sets: high-fidelity
microbuds (shipped in case pocket) and
over-ear headphones
5. Padded carrying case
6. Two 9-Volt batteries (in case pocket)
UltraPro AG-500 Receiver
The UltraPro AG-500 Receiver is an easy-to-use unit incorporating audio feedback and a 10 bar LED
indicator for visual intensity of signal. The receiver has a permanently fixed 2” directional receiver
port, 3.5 mm stereo jack and a rotary on/off volume control switch. It is powered by (1) 9-Volt
battery.
The LED display allows the user to zero in on a steady state source of ultrasonic sound when
locating a gaseous or vacuum leak or using the tone generator. Simply watch for a rise in the bar levels
as you get closer to the location of the leak/noise source.
Simply use the method described in step 5 under the Basic Operational Procedures to test the
performance of the receiver. If no sound is heard, replace the battery.
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Probes
Both the air and contact probes are precision parts, designed to optimize the response of the
UltraPro AG-500 Receiver when needed. The 12” air probe serves to extend reach or to facilitate in
isolating a leak among multiple suspect areas. The contact probe is supplied with a rubber groment
which should be installed 0.25” from the threaded cap end. Do not modify the probes in any way and
never use the probes for anything other than described in this manual.
Tone Generator
The Tone Generator emits a warble output centered at 40kHz for use in testing seal
integrity in non-pressurized vessels. The human ear cannot hear this output, so the Tone
Generator must be used with the UltraPro AG-500 Receiver and headphones. The Tone
Generator is powered by (1) 9-Volt battery, and can operate up to 40 feet [12 m] to
locate leaks. If the red indicator on the Tone Generator is on, the unit is emitting noise.
Verify operation with the receiver.
Receiver and Tone Generator Guidelines
• The UltraPro AG-500 Receiver and Tone Generator are rugged but still precision instruments.
Avoid rough handling.
• The carrying case should be used whenever possible for protection and transportation.
• The port openings of the Receiver and Tone Generator contain the heart of the UltraPro AG-
500’s operation, a precision transducer/transmitter. During use, guard against any foreign matter
or liquids from entering these areas.
• The Receiver and Tone Generator are not waterproof and should be protected from the elements.
• To prolong battery life, make sure each unit is turned off when not in use.
Batteries and Replacement
Both the UltraPro AG-500 Receiver and Tone Generator use one 9-volt battery each. Alkaline are
required. To replace the battery in the Receiver, the protective rubber boot has to be removed first.
When replacing the Tone Generator battery, be careful not to strain or pinch wires. Always remove
the battery during a period of long storage.
Calibration
The UltraPro AG-500 system has been optimally tuned at the factory and should require no re-
calibration during its life under normal conditions.
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