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Operating Instructions
Model: LD3
Dual Mode Refrigerant
Gas Leak Detector
PAG E 2
LD3 OPERATORS MANUAL
Contents
Introduction ...................................... 3
Features ......................................... 3
LD3 Control Panel ................................ 4
Operating Instructions ............................ 4
Adjusting Sensitivity Levels ....................... 5
Leak Test Vial .................................... 5
Maintenance ..................................... 6
Product Specications ............................ 7
EN14624/2005 Test Specications ................ 7
Cross Sensitivity to Automotive Chemicals ......... 8
Replacement Parts ............................... 8
Return for Repair Policy & Warranty Policy .......... 9
© Bosch Automotive Service Solutions Inc. / Robinair / November 2017
LD3 OPERATORS MANUAL
PAG E 3
Introduction
The LD3 features a long life solid electrolyte semiconductor sensor
technology that is designed to detect all CFC, HCFC, HFC, and HFO
refrigerants including R-1234YF (HFO), R-134A (HFC), R-410A (HFC),
R-22 (HCFC), R-407C (HFC), R-507 (HFC), R-12 (CFC), R-404C (HFC).
The LD3 is designed to detect all SNAP approved refrigerant blends.
The LD3 does not require rechargeable batteries
Features
Long life, stable sensor
R1234yf sensitivity .015 oz/yr
R134a sensitivity .05 oz/yr
Certied to SAE J2791, J2913, ASHRAE 173-2012, EN14624-2012
Automatic calibration and reset to ambient
3 adjustable sensitivity levels
Low battery indicator
True mechanical pump
Uses 4 AA alkaline batteries
CE Certied
Comfortable Santoprene handle grip
2-year warranty includes sensor
Made in USA
© Bosch Automotive Service Solutions Inc. / Robinair / November 2017
PAG E 4
LD3 OPERATORS MANUAL
LD3 Control Panel
Sensitivity Level Indicator
Green = MED (default)
RED = HI, Amber = LO Low
Battery indicator when
ashing RED
ON/OFF Switch
Hold down to change
Sensitivity when detector
is on.
Operating Instructions
1. Turn On: Press the ON/OFF button once to turn on and again to turn off.
NOTE: For SAE J2913 sensitivity setting for R1234yf Mode hold down
ON/OFF button until is the LED turns displays red.
2. Warm Up: The detector automatically starts heating the sensor. During
the heating cycle the detector will sound a slow “beep” and the LED will
alternate colors; green, red, yellow. The warm up cycle is complete when
the audio beep increases in frequency and the LED turns to constant green
(the default sensitivity level). Warm up is usually less than 20 seconds.
3. Search: Move the probe tip towards a suspected refrigerant leak at the
rate of less than 2 inches (~50 mm) per second, no more than 1/4 inch
(~5 mm) away from the suspected source.
4. Detection: If a leak exists, the sound will increase in rate and pitch.
NOTE: The leak detector responds to changes in refrigerant concentration.
When detection occurs, move the probe away from the source and back
again to conrm the leak source. The detector alarm will reset if the probe
is held xed at the source (see Automatic Calibration Feature).
© Bosch Automotive Service Solutions Inc. / Robinair / November 2017
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