Fieldpiece SRL2K7 - Infrared Refrigerant Leak Detector User Manual download pdf

Infrared

Refrigerant

Leak Detector

Model: SRL2

OPERATOR’S MANUAL

Description

The SRL2 uses infrared optics to create a

portable refrigerant leak detector technology that

has a superior combination of sensitivity, speed,

sensor life, battery life, portability, and ease of use.

Gas is pumped through the tip of the wand into

the sensor within the SRL2 body. The sensor

detects changes in concentration, not absolute con-

centration, making it easy to detect leaks even in

areas with refrigerant in the air.

The SRL2 detects leaks as small as 0.1 oz/year,

which exceeds the toughest SAE J1627 standards.

The SRL2 comes with wall and car charger for its

ultra-compact Lithium-ion battery which powers the

SRL2 for 8hrs of continuous operation before a

recharge is needed. That’s long enough to last your

entire workday.

Unlike many leak detectors, oil vapor does not

trigger the SRL2.

The SRL2 has vari-

able sensitivity set-

tings, keeping ‘nui-

sance tripping’ to a

minimum. A quick and

automatic 30 second self-calibration upon power-up

ensures optimal performance. A built in replaceable

filter blocks moisture and harmful particulates. The

SRL2 also has a mute button and a peak hold func-

tion.

Quick Tips

Keep the wand tip moving past suspected leak

locations.

2. Once a leak is detected, sweep the wand back

over to pinpoint.

3. To pinpoint larger leaks adjust sensitivity.

Filter Assessment & Replacement

The filter blocks moisture and other contaminants

from the sensor. When it gets wet, it constricts flow

of air and it will have to be replaced. Unscrew the

sensor tip and replace the white filter so that the

rounded end is closest to the tip of the wand. Use

only the Fieldpiece supplied filter.

You can order from a distributor extra bags of

replacement parts (model RFL2) are available from

Fieldpiece. Model RFL2 contains 10 filters and 5 O-

rings.

Comparing Leak Detectors

Fieldpiece has two leak detectors.

The SRL2 uses an infrared (IR) sensor. It detects

a CHANGE in concentration, so the wand

must keep moving. The main advantages of the

Fieldpiece IR sensor are that its sensitivity will

remain the same over the life of the instrument,

the sensor will last the lifetime of the instru

ment, it will not trigger on humidity or on oil,

and it has nearly the same sensitivity to most

refrigerants.The main disadvantage of infrared

sensors is their sensitivity to mechanical

disturbances.

The SRL8 uses a heated diode sensor.

The heated diode'sadvantage is that it detects

absolute concentration levels so it can be held on

a leak and will continue to beep. It is also initially

very sensitive. Its disadvantages are that the

sensor becomes less sensitive over life, eventually

needing replacement and it is more sensitive to

some refrigerants than others.

PEAK

MUTE

ON/OFF

L/M/H

SENSITIVITY

PEAK

LOW-BATT

PRESS FOR

1 SECOND

SRL2

Infrared

Refrigerant

Leak Detector

SENSITIVITY

PEAK

LOW-BATT

Operation

ON/OFF Protection

To turn on/off the SRL2 press and hold the

ON/OFF button for one second. This slight delay

protects against inadvertent pressing. If you forget

to turn it off, it will automatically go off in 10 minutes.

LED Bar Graph Display

The eight segment LED display indicates the

degree of change

in refrigerant concentration. As

the concentration of refrigerant in the air increases,

so does the number of lit bars on the display.

L/M/H Button (Sensitivity)

Set the sensitivity level by pressing the L/M/H but-

ton. Low(L), medium(M), or high(H) sensitivity will

be indicated by their respective LED.

The higher the concentration of refrigerant in the

ambient air, the lower the sensitivity setting should

be to minimize false trips.

Mute Button

Pressing the MUTE button toggles the sound of

the SRL2 off and on.

Peak Button

The PEAK function holds the highest change in

concentration achieved while continuing to detect

leaks. Press PEAK to toggle this function on and off.

Turning the PEAK function off will clear the peak

change. The PEAK LED will light when PEAK func-

tion is on.

Turbo Mode

The TURBO function is an additional 4th sensitiv-

ity that pushes the SRL2 to it highest possible sen-

sitivity. This feature is activated by pressing the

PEAK button four times in succession, and can only

be activated while on the high(H) sensitivity level.

When in the TURBO mode the first green LED on

SRL2 will strobe, and the audio detection sound will

be a solid tone.

To exit the TURBO mode, press the PEAK button

again four times in succession, or switch from

high(H) to one of the other sensitivities levels.

Beware: While in TURBO mode the SRL2 is

extremely sensitive and will more easily trigger on

abrupt or violent motions as well as very small

changes in refrigerant levels. Handle with care

when in TURBO mode.

Leak Detection Procedure

Keep the SRL2 away from any areas of potential

refrigerant leakage until the warm-up and calibration

period is over. The warm-up and calibration

sequence lasts about 30 seconds after ON/OFF is

pressed. Allow the SRL2 to fully warm-up before

using to avoid false triggering. On startup, meter

defaults to high sensitivity.

The most likely points for refrigerant leaks are at

the soldered joints in refrigerant lines and changes

in cross section or direction of these lines.

The SRL2 detects changes

in concentration of

refrigerant, not the absolute concentration of refrig-

erant. This lets the user easily detect leaks in places

that may have refrigerant in the air, such as a refrig-

erator leaking into an enclosed space. Because the

SRL2 detects change, there is a specific “double-

pass” method used to find leaks.

1. The tip of the wand should be fairly close to the

line. You may need to be within 1/4” (0.63cm) of

a small leak to detect it. In this case, using a

second hand to guide the tip along refrigerant

lines may be helpful.

2. Keep the tip moving along refrigerant lines at a

rate of 1-3 inches per second.

3. Once the SRL2 indicates a change in concentra-

tion, note the spot on the line and keep the tip

moving past the potential leak to refresh the air

space within the SRL2 with clean air. (Note: If

the SRL2 wand moves through a very high con-

centration of refrigerant, you may need to use in

fresh air for 4 seconds before moving to step 4

in order to clear the refrigerant within the SRL2.)

4. Return the tip back to, and past, the spot first

indicated. When the SRL2 indicates a second

change, note the spot on the line. The source of

the leak will be near the midpoint between the

two noted spots of indication.

5. Very high concentrations of refrigerant can

cause an overload which can take a few sec-

onds to clear.

SRL2 testing an A-coil in an evaporator, 1/4” from the line.

1/4”

(0.63cm)

WARNING

DO NOT use the SRL2 without the proper fil-

ter correctly installed.

1 2

Summary of Contents

Page 1 - (0.63cm)

Infrared RefrigerantLeak DetectorModel: SRL2OPERATOR’S MANUALDescriptionThe SRL2 uses infrared optics to create aportable refrigerant leak detector te

Page 2 - Psychrometer

Specifications Sensing element: Enhanced infrared photo opticsSensor life: 10 yearsRefrigerants: HFC, CFC, HCFC, and blends Sensitivity: Min (Stationa

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Fieldpiece SRL2K7 - Infrared Refrigerant Leak Detector User Manual

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