UEi Test Instruments RLD10` - Manual (Page 4)

Disassembly of Sensor
1. Turn the instrument’s power off. Mild electrical shock may result if
you make contact with the sensor while power is on.
2. Remove the tip guard from the metal tip housing by twisting it
clockwise while away from the Gooseneck.
3. Remove the metal tip housing from the Gooseneck by holding the
Gooseneck steady while turning the tip housing counterclockwise.
• The base contact assembly may adhere to the tip housing as it
comes out. If so, the tip housing will tend to spring-back
clockwise with every counterclockwise turn.
• Continue turning as described until the metal housing can be
lifted away from the wand. You may have to hold it in place
after each turn.
• Pull the housing up just far enough to view the insulation on the
white plastic base contact.
• Grip the exposed white insulation with needle-nosed pliers,
holding it firm with the Gooseneck.
• Separate the metal housing away from the Gooseneck.
4. The sensor tip will commonly remain in the metal housing, and
must be forced out from the top (toward the Gooseneck end) with
a toothpick or similar instrument.
Replace or clean the sensor as desired then reassemble in reverse order.
Proper function depends on the unit’s electrical contacts. Make sure the
tip assembly is making good contact with the base and there is good
metal-to-metal contact on the tip housing-to-Gooseneck connection.
Calibration
When properly maintained, your instrument is sensitive to refrigerant
leaks as small as .4 ounces per year. To ensure your instrument is
performing at its peak, send it to the UEi factory or a qualified
instrument calibration facility for annual certification.
Battery Replacement
Always use a fresh replacement battery of the specified size and type.
Immediately remove the old or weak battery from the meter and
dispose of it in accordance with your local disposal regulations. Batteries
can leak chemicals that corrode electronic circuits. If your meter is not
going to be used for a month or more, remove and store the battery in
a place that will not allow leakage to damage other materials.
Replace battery when:
• The green “READY” light begins to glow red
• No lights or other activity occurs upon turning the instrument on
• Tic rate quickly begins to increase when no refrigerant is
being detected*
*An increase in tic rate may be experienced if the unit remains on for a
long period. This is a normal response to decreasing battery life. Turn
the unit off and allow it to recalibrate in fresh air if this occurs.
To install a new battery, follow these procedures:
1. Remove the battery cover.
2. Remove the battery using a coin or screwdriver.
3. Replace the battery, observing indicated polarity.
Tro u b l e s h o o t i n g
This unit contains no user serviceable parts beyond those listed in the
table. In the event your instrument is physically damaged or does not
function properly after taking the listed action, please return the
instrument to UEi following the warranty and service instructions.
S p e c i f i c a t i o n s
Operating Conditions
To ensure accurate readings from your RLD10, use it only when ambient
air is within this range:
Temperature: 32 to 120˚F
Humidity: 0 to 80% RH (non condensing)
Gasses Detected
The RLD10 detects a wide variety of refrigerant. The following list
represents a portion of the refrigerant and gasses detected:
R11 R12 R13 R22
R23 R113 R114 R134A
R500 R502 Halons R404A
SF6 Perchlorethylene Blends R410A
RLD10-MAN P. 3
If I See This
Malfunction
Instrument does not
turn on
Instrument does not tic
after it is switched on,
but the lights work
Appropriate indicators
do not light
The tic rate does not
increase when the sen-
sor is exposed to
refrigerant or other
detectable gas
Tic rate increases
during use
Tic rate remains fast
after warm up
The green power-on
indicator appears red
I Should
Check For
Battery voltage
Mode switch position
Earphone jack
Battery voltage
Airflow to sensor
Sensor connection
Sensor contamination
Reduced battery voltage
Moisture in sensor cavity
Moisture in sensor cavity
Battery voltage
Battery voltage
Then Take This Corrective
Action
Replace low battery
Place firmly in Low or
High position
Remove earphone plug or
debris inserted in receptacle
Replace low battery
Clear restriction
Clean and tighten sensor
component contacts
Clean or replace sensor
Cycle off (5 seconds) and
back on (Recalibrates to
compensate for
decreasing voltage)
Disassemble and dry sensor
Disassemble and dry sensor
Replace low battery
Replace low battery