User Guide

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 chargers for its ultra-compact Li-ion polymer 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.
Specifications Sensing element: Enhanced infrared photo optics Sensor life: 10 years Refrigerants: HFC, CFC, HCFC, and blends Sensitivity level (per SAEJ1627):
HIGH: 0.1 oz/year and higher MED: 0.5 oz/year and higher LOW: 1.0 oz/year and higher
Response time: 0.5 to 1 second Auto off: 10 minutes after no activity Battery: 7.4VDC(nominal), 900mAh rechargeable
lithium ion polymer (model H702550-2S) techni- cian-replaceable battery.
Battery life: 8 hours continuous use prior to
needing a charge. Degradation (10-5%) after 500 charge/discharge cycles or two years, whichever comes first.
Low battery LED: Illuminated when approximate-
ly 1 hour of battery life remains.
Charge time: Less than 4 hours with either sup-
plied charger.
Operating environment: 32ºF (0°C) to 122ºF
(50°C) at <75%RH
Storage environment: <80%RH meter and batt.
For 80% battery recovery: -4ºF (-20°C) to 140ºF (60°C) less than 1 month -4ºF (-20°C) to 113ºF (45°C) less than 3 months -4ºF (-20°C) to 68ºF (20°C) less than 1 year
Patents: #6,791,088 and #7,022,993
Accessories included: wall charger, car charger,
case, 10 extra filters, 5 spare O-ring rubber gas- kets, battery (installed), and operator’s manual.
Quick Tips
1.
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.
T2 T2
PEAK
MUTE
ON/OFF
ON/OFF
L/M/H
SENSITIVITY
H M L
PEAK
LOW-BATT
PRESS FOR
1 SECOND
SRL2
Infrared Refrigerant Leak Detector
SENSITIVITY
H M L
PEAK
LOW-BATT
WARNING
DO NOT open battery compartment or meter
case. Battery must be replaced by Fieldpiece.
DO NOT charge battery with any other charg-
er than those that came with the instrument!
DO NOT use the SRL2 without the proper fil-
ter correctly installed.
Read and follow the Lithium Battery Care
section in this manual.
!
!
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 inadvertant 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.
Use the highest sensitivity that will not give you
false indications of a leak. The higher the concen- tration 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 on and off. 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. 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. On startup, meter defaults to high sensitiv- ity.
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” 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.
Warranty and Service
The product is warranted to the original purchas-
er against defects in material or workmanship for a period of one (1) year from the date of purchase. During the warranty period, Fieldpiece Instruments will, at its option, replace or repair the defective unit.
This warranty does not apply to defects resulting
from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use of the instrument. Any implied warranty arising out of the sale of Fieldpiece's products including but not limited to implied warranties of merchantability and fitness for purpose are limited to the above. Fieldpiece shall not be liable for incidental or consequential dam- ages.
Any defective SRL2 should be returned to
Fieldpiece Instruments for warranty service along with proof of purchase. Call Fieldpiece for a return material authorization (RMA). For out of warranty service, send the SRL2 meter with battery installed along with an RMA number. Your SRL2 will be repaired or replaced at Fieldpiece's option. Repair price for SRL2 meter is $155. Repair price for SRL2 battery is $45.
Fieldpiece Instruments, Inc.
580 West Central Ave. Suite A
Brea, CA 92821
Phone: [phone] Fax: [phone]
www.fieldpiece.com
SRL2 testing an A-coil in an evaporator, 1/4” from the line.
1/4”