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Summary of Contents for Heath Consultants RMLD
- Page 1 ™ 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 1 of 36...
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Page 2: Notice
Notice The contents of this user’s manual are proprietary to Heath Consultants Incorporated (HEATH). Reproduction in whole or in part of this 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 notification. -
Page 3: Warnings
**Warning** Do not turn on the RMLD or use the instrument indoors if there is a potential, indication, or suspicion that an explosive level of gas is present. -
Page 4: Table Of Contents
Operating the RMLD...........…. Turning the RMLD On…………………………………. Turning on the Spotter Laser…………………………… Turning the RMLD Off………………………………… Using the Menu………………………………………… Using the DMD Mode………………………………….. Using the Pure Tone Mode…………………………….. Self-Test and Calibration………………………………. Calibration Override……………………………………. 101515-0 RMLD MANUAL REV F Page 4 of 36... - Page 5 Chapter IV Surveying with the RMLD……………………………… Long Range Scanning…………………………………… Dealing with False Detections…………………………… How Does the RMLD Measure Gas?……………………. Chapter V Maintenance and Troubleshooting Information Troubleshooting the Instrument .........…. Maintenance..............Chapter VI Service Information Warranties and Warranty Repair .........… Obtaining Service……………………………………….
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Page 6: Overview
With the RMLD it is now possible to survey areas that are hard to reach or not easily accessible. The RMLD does not have to be within the gas plume because it uses laser technology known as Tunable Diode Laser Absorption Spectroscopy. - Page 7 The RMLD consists of two main interactive components: • Transceiver • Control Module Fig 1-3: The RMLD system consists of a Laser Emitter/Receiver and a Control Module The Transceiver has two lasers. The Infrared laser is non visible and is continuously on while the unit is turned on.
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Page 8: Chapter I
External, in-line, 110 – 240 VAC, 50 / 60 hertz universal Battery Charger 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) 101515-0 RMLD MANUAL REV F Page 8 of 36... -
Page 9: Rmld System Components
RMLD System Components This Chapter describes the features of the RMLD. Please refer to Figure 1-4 for illustrations of individual parts. Calibration Cell Manual & Training Video Carrying Case External Power Supply (optional) Shoulder Strap Battery Charger Charger Adaptors RMLD Earphone Fig. -
Page 10: Transceiver
Harness hooks are provided to allow the unit to be suspended from the harness. Carrying Strap The RMLD is provided with a single carrying strap with shoulder pad. An optional dual strap harness is also available. Battery Charger The battery charger is provided to recharge the instrument after use. -
Page 11: Optional Accessories
The external power supply is a back-up battery provided to extend the operating time of the instrument if the internal battery is not charged enough to run the instrument. This power supply contains 5 “C” batteries. Fig 1-6 101515-0 RMLD MANUAL REV F Page 11 of 36... -
Page 12: Battery Charging
Battery Charging Rechargeable Battery The RMLD has an internal, rechargeable Li-ion battery that provides the main power to the instrument. This battery is designed to provide 8 hours of operating time when fully charged. The battery must be recharged between use to assure no interruption in use. -
Page 13: Battery Charger
Battery Charger The RMLD is provided with a universal AC battery charger. The plug of the charger can be changed to fit the type of receptacle used in your location. Charging Procedure To recharge the internal battery, perform the following procedure: 1. -
Page 14: Operating The Rmld
Re-Try Self-Test OK Fig. 3-1 Figure 1: RMLD front panel and display. (Note: for illustration, all the display icons are shown. During actual operation, only the icons associated with an active function will be displayed) DMD button: press to turn on/off the DMD mode. -
Page 15: Turning The Rmld On
External Power Switch RS-232 port Power port Fig. 3-2: RMLD rear panel Headphone port: receptacle for the headphone plug. Charger port: receptacle for the battery charger plug. Power Switch: depress the switch to turn the instrument on/off. Ext. Power: receptacle for the external backup battery plug. -
Page 16: Turning On The Spotter Laser
(e.g., Alarm Detection Threshold, Spotter On, etc.) will be automatically saved. Using the Menu The RMLD menu allows the operator to adjust certain operational values or to turn on/off other functions. The operator can change the following operational values: 1. - Page 17 Press Up button to enable or disable the Spotter laser. • AL i. Press Up button to increase the Alarm Detection Threshold. ii. Press Down button to decrease the Alarm Detection Threshold. Fig. 3-4 101515-0 RMLD MANUAL REV F Page 17 of 36...
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Page 18: Using The Dmd Mode
The Digital Methane Detection (DMD) mode is a highly sophisticated detection algorithm that greatly enhances the use of the RMLD. In most situations, the operator should survey with the DMD mode turned on. To turn on the DMD mode, press the DMD button (the DMD icon will appear on the display). -
Page 19: Using The Pure Tone Mode
The higher the threshold setting is, the less sensitive the instrument becomes. Using the Pure Tone Mode The Pure Tone mode of the RMLD plays a continuous tone that is relative to the instantaneous concentration level. The higher the pitch of the tone, the higher the methane concentration level. -
Page 20: Self-Test And Calibration
Self-Test and Calibration The RMLD has a built-in function to perform a Self-Test and Calibration of the laser wavelength. The self-test feature should be used on a daily basis to ensure that the instrument is in proper working order. -
Page 21: Calibration Override
Contact HEATH for assistance. **Note** Laser wavelength drift is a normal characteristic of the RMLD. Normally the rate of drift is low and will not affect the Self-Test if performed on a regular basis. If the initial reading is low when placed in the case, and requires the use of the calibration override to force it through calibration, then the laser calibration was previously off. - Page 22 Verify calibration cell is not broken **Caution** Should the instrument not pass after several attempts, do not use the instrument for survey work until the problem is corrected. Contact HEATH for further assistance. 101515-0 RMLD MANUAL REV F Page 22 of 36...
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Page 23: Surveying With The Rmld
The operator must consider these factors and their effects throughout the survey. The most important aspect to using the RMLD is the proper control and aiming of the IR beam. -
Page 24: Long Range Scanning
• If in doubt and if the leak is underground, bar hole the area. Long Range Scanning: The RMLD can detect leaks from up to 100 ft. away. Actual distance may vary due to target surface and environmental conditions. As the scanning distance is increased, the laser light level returned will become lower. - Page 25 Look for the best angle to thoroughly scan these areas. Scanning up a hillside may cause beam skipping or dark zones around the foundation of a structure. Fig. 4-2: Ground elevation change or obstructions in the line of sight will cause “dark zones” (shadows). 101515-0 RMLD MANUAL REV F Page 25 of 36...
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Page 26: Dealing With False Detections
How Does the RMLD Measure Gas? With the RMLD it is now possible to survey areas that are hard to reach or not easily accessible. The RMLD does not have to be within the gas plume because it uses laser technology known as Tunable Diode Laser Absorption Spectroscopy. - Page 27 For another example, if the average concentration of the gas cloud is 20 PPM and is about 2 meter in width, the RMLD will measure 40 ppm-m, plus a background level of 15 ppm-m in this case, displaying a total value of 55 ppm-m.
- Page 28 10 to 15 ft. and beyond. **Note** There is always a small amount of methane in the air. This natural methane background is also measured by the RMLD. The ppm-m reading will then increase as the scanning distance increases. **Note** The nature of a gas plume is highly variable.
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Page 29: Maintenance And Troubleshooting Information
Maintenance and Troubleshooting Information Troubleshooting the Instrument The advanced design of the RMLD makes it one of the most reliable leak survey instruments available. However, should you experience problems with the instrument or suspect that the instrument is not operating properly, do not use the instrument for leak survey work until the problem is resolved. - Page 30 • Battery level calibration • Run unit until it shuts Battery indicator bars are flashing on and off error off, then fully recharge with out interruption 101515-0 RMLD MANUAL REV F Page 30 of 36...
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Page 31: Maintenance
Maintenance In order to maintain the RMLD in good working condition, the following maintenance should be performed as indicated: Maintenance Item Frequency Clean outer surfaces with damp rag As needed Clean Transceiver window with damp As needed to prevent dust or water stain KemWipe™... -
Page 32: Service Information
Service Information Warranties and Warranty Repair The RMLD is warranted to be free from defects in material and workmanship for one (1) year from date of shipment. The warranty on authorized repairs in the Houston Factory Service Center (FSC) is ninety (90) days materials and labor. -
Page 33: Glossary
Beam Skip: Occurs when the IR beam jumps between a near object and a far away object. This may cause a false detection. Control Module: The portion of the RMLD with the keypad and display that clips onto a harness. -
Page 34: Rmld Parts List
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Page 35: Rmld Parts List (Continued)
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Page 36: Daily Log
RMLD Daily Self-Test and Calibration Log RMLD S/N Date Operator Passed Self-Test ppm-m Alarm Notes Reading Self-Test? Level 101515-0 RMLD MANUAL REV F Page 34 of 36... -
Page 37: Declaration Of Conformity
April 21, 2005 EN 61000-4-2 4/8kV April 20, 2005 EN 61000-4-3 10V/m April 20, 2005 Date of Issue: May 16, 2005 Signed by: (On File) Graham Midgley Heath Consultants CEO Page 35 of 36 101515-0 RMLD MA NUAL REV F... -
Page 38: Heath Consultants Contact Information
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) 844-1309 www.heathus.com Page 36 of 36 101515-0 RMLD MANUAL REV F...
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