General Tools and Instruments RLD400 - Manual (Page 4)

The digital readout makes it easy to pinpoint the source of a leak and helps you decide
whether it is large enough to be worth plugging. The reading is independent of the
selected sensitivity level (three are available) and is at its highest when the tip of the
probe is at the source of the leak. A table in the Operating Instructions section of this
manual correlates display readings with leak size, in ounces per year.
The RLD400 simultaneously uses sound to help locate the source of a leak. Whenever
the unit is on, it continuously produces three very loud beeps every two seconds. When
a leak is detected, the frequency of the beeping increases dramatically. The beeper can
be muted by pressing a dedicated button on the front panel.
A third feature of the RLD400 that helps locate leaks is a red LED adjacent to the sensor
at the end of the probe. This light flashes in sync with the beep. In other words, it flashes
three times every two seconds whenever the unit is on, and much faster whenever the
unit detects refrigerant. When the red LED begins to flash rapidly, your eye will naturally
be drawn to it—and therefore the location of the leak. Like the leak-size readout, the
LED at the end of the probe is bright enough to be visible in full sunlight.
The RLD400 automatically compensates for ambient levels of refrigerant gas. No
manual sensitivity adjustments or power adjustments are required.
The instrument is supplied with a proprietary leak test vial that lets you verify that it is
working properly prior to searching for a leak. The RLD400 is powered by four “AA”
batteries, which are included in the case.
KEY FEATURES
• Proprietary sensor with lifetime of thousands of hours of operation (ten years of
normal use)
• Detects all commercially available HFC, HFO, HC, HCFC and CFC refrigerants as well
as blends and newly approved replacements such as R-22 and R-1234yf
• Triple-redundant leak indication (loud fast beep, bright flashing LED, digital leak size
reading)
• True mechanical pump draws in samples, increasing sensitivity
• Sensitivity of 0.05 oz./year (1.4 g/year) to R-134a
• Three sensitivity levels
• Fast warmup • Comfortable neoprene grip
• Automatic calibration and reset to ambient levels • Mutable beeper
• Garage-durable construction • Leak test vial
• Low battery indicator • Padded hard plastic case
• Made in U.S.A. • SAE J2791 and J2913 certified
• 2-year warranty includes sensor • CE, RoHS, WEEE approved
• Complies with European standard EN 14624
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