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JB INDUSTRIES 

 •  QUEST LD-3000 Operating Manual  •  630.851.9444  •  [email protected]

PARTS LIST

RETURN FOR REPAIR

Every effort has been made to provide reliable, superior quality products. However, in the event your instrument 

requires repair, please contact JB Customer Service Department to obtain a Return Goods Authorization (RGA) 

number. Ensure that all returned products are packed to avoid any damage in shipment. Paperwork should be 

placed in a separate plastic bag and should include JB’s assigned RGA number, a description of the problem 

and any customer assigned repair or purchase order number, if applicable.

Contact Customer Service for RGA number: 

  

 

800.323.0811 Toll 

800.552.5593 Toll Fax

Products should be shipped with freight prepaid to:

    

 JB  Industries

 

RGA#_________  

601 N. Farnsworth Ave. 

Aurora, IL 60505 

630.851.9444 Tel 

630.851.9448 Fax

WARRANTY

The LDC-4000 is warrantied against defects in materials and workmanship for 1 year from date of purchase.  

JB products are guaranteed when used in accordance with our guidelines and recommendations. Warranty 

is limited to the repair, replacement, or credit at invoice price, (our option) of products which in our opinion 

are defective due to workmanship and/or materials. In no case will we allow charges for labor, expense or 

consequential damage. Repairs performed on items out of warranty will be invoiced on a nominal basis; contact 

wholesaler for details. Additional product information available online at www.jbind.com.

WARNING:

 This product can expose you to chemicals including lead which are known to the State  

of California to cause cancer and birth defects or other reproductive harm. For more information go to  

www.P65Warnings.ca.gov.

JB INDUSTRIES

©2019 JB Industries, Inc.  1019

PART NO.

DESCRIPTION

LDC-4000

Combustible Gas and HC Refrigerant Leak Detector in case

LDC-4000-1

Replacement sensor (4 prong)

LDC-4000-2

Replacement sensor cover

LDC-4000-3

Combustible leak test vial

LDC-4000-4

Protective carrying case

LD-CS

Protective carrying case

LD-ST

Replacement sensor tip

LDC-4000 Manual 1019.indd   8

LDC-4000 Manual 1019.indd   8

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12/19/19   2:13 PM

Summary of Contents for LDC-4000

Page 1: ...KDETECTOR LDC 4000 Certifications CertifiedbytheMineSafety HealthAdministration MSHA tobesafeinacombustible atmosphere OPERATING MANUAL JBIND COM LDC 4000 Manual 1019 indd 1 LDC 4000 Manual 1019 indd 1 12 19 19 2 13 PM 12 19 19 2 13 PM ...

Page 2: ... Solid State Heated Sensor Comfortable Rubber Handle Low Battery Indicator High sensitivity to all HC refrigerants and combustible gases Long life solid state heated sensor Sensitive to 5 ppm of methane Sensor life 300 hours Automatic calibration and reset to ambient Comfortable rubber handle Intrinsically safe certified Low battery indicator 17 flexible probe Protective carrying case Operates wit...

Page 3: ... up time 10 seconds Probe length 17 43 cm Unit Weight 1 5 lbs 68 kg Warranty 2 year warranty Detects DETECTS ALL HYDROCARBON AND COMBUSTIBLE GASES Methane R 50 Acetylene Propane R 290 Methyl Ether Ethane R 170 Ammonia Butane R 600 Hydrogen Sulfide Hydrogen Industrial Solvents Ethylene Benzene Ethanol Alcohol Iso butane Acetone NOL Toluene Gasoline Xylene LDC 4000 Manual 1019 indd 3 LDC 4000 Manual...

Page 4: ... less than 10 seconds 3 READY MODE The detector is ready to begin searching for leaks when the audio beep increases in frequency 4 SEARCHING When searching for leaks move the sensor tip along A C lines and fittings no further away than 37 in 9 5 mm and no faster than 3 in sec 75 mm sec If the detector alarms make smaller sweeps back and forth until the leak source can be pinpointed If a leak exist...

Page 5: ...cycle 3 Place the sensor close to the small hole in the top of the Leak Test Vial The beep rate should increase indicating that the sensor and the electronics are working properly Remove Label Dot over Vent Hole before testing Vial Cap with Vent Hole Leak Test Vial Expiration Date on Label NOTE Replace the Test Vial in the bag and seal when not in use to extend shelf life Replace Test Vial when th...

Page 6: ...is lit Installing Batteries Remove screw located at the top center of the housing and remove battery door Insert all four batteries into the battery compartment in the same direction NOTE Reference the polarity mark on the inside of the battery door for proper battery installation Low Battery Indicator Polarity Marks Battery Door Screw LDC 4000 Manual 1019 indd 6 LDC 4000 Manual 1019 indd 6 12 19 ...

Page 7: ...becomes visibly dirty or every 2 to 3 months depending on use 2 Push straight on to install do not twist NOTE Do not force sensor into socket misalignment will damage sensor pins Sensor Cover Alignment Key Alignment Tab Sensor Socket 4 Pin Sensor Sensor Pins Flexible Probe LDC 4000 Manual 1019 indd 7 LDC 4000 Manual 1019 indd 7 12 19 19 2 13 PM 12 19 19 2 13 PM ...

Page 8: ...products are guaranteed when used in accordance with our guidelines and recommendations Warranty is limited to the repair replacement or credit at invoice price our option of products which in our opinion are defective due to workmanship and or materials In no case will we allow charges for labor expense or consequential damage Repairs performed on items out of warranty will be invoiced on a nomin...

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