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101515-0 RMLD MANUAL REV 

F

 

Chapter I

 

RMLD System Specifications

 

Detection Method: 

Tunable Diode Laser Absorption Spectroscopy (TDLAS) 

Measurement Range: 

0 to 99,999 ppm-m 

Sensitivity: 

5 ppm-m at distance from 0 to 50 ft (15 m) 
10 ppm-m or better from 50 to 100 ft (15 to 30 m) 

Detection Distance: 

100 ft (30 m) nominal.  Actual distance may vary due to 
background type and conditions 

Beam Size: 

Conical in shape with a 22” width at 100 ft. (56 cm at 30 m) 

Detection Alarms Modes 

Digital Methane Detection (DMD): 

Audible tone relative to concentration when 

detection threshold exceeded. 

Adjustable Alarm Detection Threshold from 0 to 

255 ppm-m 

Pure Tone: 

Continuous audio tone relative to concentration 

System Fault Warning 

Audible tone and indication on the display 

Self Test & Calibration 

Built-in Self-Test and Calibration function verifies 
operation and adjusts laser wavelength for maximum 
sensitivity.  Test gas cell integrated with carrying case. 

Compliance: 

EMC (EN61000-6-2, EN6100-6-4) Pending 

Laser Eye Safety: 
(CDRH, ANSI and IEC) 

IR Detector Laser: 

Class I 

Green Spotter Laser: 

Class IIIa; Do not stare into beam or view directly 

with optical instruments. 

Display: 

Large easy to read backlit LCD (.75” Numeric) 

Operating Temperature 

0° to 122° F (-17° to 50° C) 

Humidity 

5 to 95 % RH, non-condensing 

Enclosure: 

IP54 (Water splash and Dust resistant) 

Instrument Weight: 

9 lbs  (Transceiver 3 lbs, Controller 6 lbs)  (4 kg; 1.3  kg, 

2.7 kg) 

Carry Case: 

14 lbs; 34” x 9 ½” x 14”  (6.4 kg; 86 cm x 24 cm x 36 cm) 

Power Supply 

Internal rechargeable Li-ion battery 
External Backup Battery pack with 5 C cells (Optional) 

Battery Operating Life 

8 hours at 32° F without backlight on (Internal battery) 

Battery Charger 

External, in-line, 110 – 240 VAC, 50 / 60 hertz universal 
type with charge indicator (8 hours maximum to full charge) 

Shoulder Strap 

Single over the shoulder padded strap 
Ergonomic dual strap and belt system (Optional) 

Summary of Contents for RMLD

Page 1: ...Page 1 of 36 User s Manual Heath Consultants Incorporated Houston TX Phone 713 844 1300 Fax 713 844 1309 1 800 HEATH US www heathus com 101515 0 RMLD MANUAL REV F...

Page 2: ...manual is prohibited without the express written consent of HEATH HEATH operates under a continual product improvement program and reserves the right to make improvements and or changes without prior...

Page 3: ...r The visible green Spotter laser is a Class IIIa laser product Do not stare into beam or view directly with optical instruments Spotter laser Fig 1 1 Caution No attempt should be made to repair the i...

Page 4: ...ry Charger 10 Instruction CD 10 Carrying Case 10 Headphone 10 Optional Accessories 11 Chapter II Battery Charging Rechargeable Battery 12 Battery Charger 13 Charging Procedure 13 Chapter III Operating...

Page 5: ...LD Measure Gas 26 Chapter V Maintenance and Troubleshooting Information Troubleshooting the Instrument 29 Maintenance 31 Chapter VI Service Information Warranties and Warranty Repair 32 Obtaining Serv...

Page 6: ...hout always having to walk the full length of the service line Fig 1 2 Using laser technology remote detection allows you to safely survey areas that may be difficult to reach such as busy roadways ya...

Page 7: ...sensitivity or range is not affected by reasonable amounts of dust on the optics window The RMLD has built in Self test and Calibration functions that will assure that the instrument is operating prop...

Page 8: ...s operation and adjusts laser wavelength for maximum sensitivity Test gas cell integrated with carrying case Compliance EMC EN61000 6 2 EN6100 6 4 Pending Laser Eye Safety CDRH ANSI and IEC IR Detecto...

Page 9: ...alibration Cell Carrying Case Shoulder Strap Manual Training Video External Power Supply optional Earphone RMLD Battery Charger Charger Adaptors Fig 1 4 System Components Controller The controller pro...

Page 10: ...dicator Adaptors are provided to convert the style plug for different types of receptacles Instruction CD The Instruction CD contains the following items 1 Instruction Manual that provides instruction...

Page 11: ...nal stability and control of the unit while surveying HEATH strongly suggests that this harness be used by personnel who use the instrument on a continuous basis to limit fatigue when holding the tran...

Page 12: ...nt to run until it shuts itself off This should also be needed if the indicator does not follow the actual charge e g if the instrument stops operating while the battery indicator is reading that a ch...

Page 13: ...following procedure 1 Turn the instrument off 2 Plug the AC plug into a surge protected outlet 3 Plug the charger plug into the RMLD charger port 4 A blinking green light indicates that the charger is...

Page 14: ...to acknowledge a user prompt Down adjust button press to decrease a value Select button press to scroll through the menu options Display Battery Indicator displays the amount of battery charge Gas Co...

Page 15: ...rposes only Turning the RMLD On Depress the Power Switch located on the rear panel When the unit first turns on the green Spotter laser will briefly flash and the display will shortly show all of the...

Page 16: ...er The visible green spotter laser is a Class IIIa laser product Do not stare into beam or view directly with optical instruments Spotter laser IR Detector laser Spotter trigger switch Fig 3 3 Turning...

Page 17: ...libration 1 Press the Up button to acknowledge user prompts OK or Retry Ready to start Self Test VOL i Press Up button to increase the volume level ii Press Down button to decrease the volume level SP...

Page 18: ...played when in DMD mode While using the DMD no sound will be heard until a detection of methane occurs The pitch of the sound will be relative to the methane concentration The higher the pitch the str...

Page 19: ...entration level No sound at all will indicate a low light level condition or instrument fault Note that the pitch level increases as you scan at a further distance This is due to the ambient amount of...

Page 20: ...or to the beginning of your survey day Each Self Test Calibration should be recorded into a daily log An example daily log has been included at the end of this manual for your convenience To perform t...

Page 21: ...hecking the above repeat the Self Test and Calibration procedure above Calibration Override Should the unit fail at step 6 due to initial low readings perform the following actions 1 Ensure the instru...

Page 22: ...ake sure battery is fully charged Make sure the unit is in its proper position all the way down and flat Verify calibration cell is not broken Use the Calibration Override Laser adjustment failed Make...

Page 23: ...conditions like high winds and higher temperatures will cause the plume to dissipate faster The operator must consider these factors and their effects throughout the survey The most important aspect...

Page 24: ...ter scan the meter in a horizontal Z pattern maintaining a constant distance as you sweep across If a leak is located near or on the meter these tips help to determine if the leak is underground or on...

Page 25: ...e detection Fig 4 1 Sudden change in distance may cause a false detection Obstructions or variations in the landscape can cause dark zones where the laser doesn t scan Look for the best angle to thoro...

Page 26: ...trong reflections off certain types of surfaces e g black garbage bags water droplets glass polished surfaces stones license plates reflectors etc may give a false detection Rescan the area from a sli...

Page 27: ...cal signal that carries the information needed to deduce the methane concentration The laser light is selective to methane and will not false alarm on other hydrocarbons This signal is processed so th...

Page 28: ...otprint width and distance increases as the distance increases see Figure 4 5 This is why it is much easier to detect leaks from a distance of 10 to 15 ft and beyond Note There is always a small amoun...

Page 29: ...t listed or the solution doesn t work please contact HEATH for further assistance Symptom Probable Cause s Solution Readings are higher than normal at short range and lower than normal for long range...

Page 30: ...output not optimized Alarm Detection Threshold set too high or low for conditions Perform Self Test procedure Check the Alarm Detection Threshold Error icon or Warning icon on continuously Low batter...

Page 31: ...ated Maintenance Item Frequency Clean outer surfaces with damp rag As needed Clean Transceiver window with damp KemWipe or equivalent none abrasive lens tissue As needed to prevent dust or water stain...

Page 32: ...pre paid and adequately insured Return shipping and insurance will be at no charge to the purchaser HEATH does not assume liability for indirect or consequential damage or loss of any nature in conne...

Page 33: ...bration Drift A normal characteristic of tunable diode lasers is that the wavelength calibration can drift slowly overtime The RMLD has a built in Selt Test Calibration feature to automatically mainta...

Page 34: ...Page 34 of 36 101515 0 RMLD MANUAL REV F...

Page 35: ...Page 35 of 36 101515 0 RMLD MANUAL REV F...

Page 36: ...RMLD Daily Self Test and Calibration Log RMLD S N Date Operator Passed Self Test Self Test ppm m Reading Alarm Level Notes 101515 0 RMLD MANUAL REV F Page 34 of 36...

Page 37: ...ropean EMC directive 89 336 EEC FCC 47 CFR Part 15 Subpart B Class A and ANSI C63 4 and is in accordance with the following standards EN 61326 1 Conducted Emissions Class A April 21 2005 Radiated Emis...

Page 38: ...LD MANUAL REV F Technical Support 1 800 HEATH US 1 800 432 8487 HOUSTON FACTORY SERVICE CENTER Heath Consultants Manufacturing Division 9030 Monroe Road Houston Texas 77061 Phone 713 844 1300 Fax 713...

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