Heath Consultants RMLD-CS HPN 105301 User manual

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
reserved.
1
Table of Contents
PROPRIETARY NOTICE 4
OVERVIEW 5
WARNINGS & DEFINITIONS 6
SAFETY AND WARNING INFORMATION 6
SYMBOLS USED 7
DEFINITIONS 8
SPECIFICATIONS 9
RMLD-CS INSTRUMENT AND ACCESSORIES 11
BATTERY PACK, CHARGER AND CHARGING PROCEDURE 13
BATTERY PACK 13
DUAL BAY BATTERY PACK CHARGER 13
CHARGING PROCEDURE 14
OPERATING THE RMLD-CS 16
TURNING INSTRUMENT ON/OFF 16
BUTTON CONTROLS 17
SCREEN MODE –SURVEY 18
SCREEN MODE –GRAPH 18
SYSTEM ACCESS LEVELS 20
TIERED PERMISSIONS 20
BEFORE LOGIN 21
ADMIN PROFILE 22
FIRST METHOD 22
SECOND METHOD 27
WORKING WITH THE MENU ITEMS 29
AVAILABLE MENU FEATURES FOR FIRMWARE 1.40-2.33-8 OR EARLIER 29
AVAILABLE FEATURES -OPERATOR’S ACCESS LEVEL MENU FOR FIRMWARE 1.54-2.38-10 OR LATER 29
INSTRUMENT SELF-TEST 30
AUDIO INDICATIONS AND MODES 31
ALARM LEVEL 33
SPOTTER CONTROL 34
USB 35
USB FILE TRANSFER IN FILE MODE 37

RMLD-CS Operator’s Manual
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BLUETOOTH BLE 38
WI-FI39
DATA LOGGING 44
LANGUAGE 45
TIMEZONE OFFSET 45
DISPLAY BACKGROUND 47
USER PROFILES 47
ABOUT SCREEN 51
ADMIN SPECIFIC COMMANDS VIA USB COMMAND MODE 52
3RD PARTY APPLICATION SUPPORT 53
HOW DOES THE RMLD-CS MEASURE GAS? 54
SURVEYING WITH THE RMLD-CS 56
LONG RANGE SCANNING 58
DEALING WITH FALSE DETECTIONS 59
SCANNING THROUGH WINDOWS 59
COMMON VENTING LOCATIONS 60
TROUBLESHOOTING 61
MAINTENANCE 63
NOTES 64
WARRANTY AND REPAIR 65
RETURN PROCEDURE 66
CONTACT INFORMATION 67

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
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3

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
reserved.
4
Proprietary Notice
The contents of this instruction manual are proprietary to Heath Consultants Incorporated. Reproduction of
this manual, in whole or in part, is prohibited without the express written consent of Heath Consultants
Incorporated.
Heath Consultants Incorporated operates under a continual product improvement program and reserves
the right to make improvements and / or changes without prior notification.
This manual supersedes all previous manuals for this instrument.
Doc No. 105408 Rev C, RMLD-CS Operator Manual
Copyright © 2021 Heath Consultants Incorporated. All rights reserved.

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
reserved.
5
Overview
The HEATH Remote Methane Leak Detector - Complete Solution (RMLD-CS) is a highly advanced
technology, capable of detecting methane leaks from a remote distance. This technology makes it possible
to detect leaks without having to walk the full length of the pipe line, thus creating safer surveys in areas
that may be difficult to reach such as busy roadways, yards with dogs, fenced off areas, and other hard to
access places.
The RMLD-CS employs the same technology as the field proven legacy RMLD, known as Tunable Diode
Laser Absorption Spectroscopy (TDLAS). As the laser passes through the gas plume, the methane absorbs a
portion of the light, which the instrument then detects. Based on the local meteorological conditions, a
given amount of gas escaping from the ground will produce a plume that varies in size and uniformity of
concentration levels. The plume, by nature, is variable and dependent on the soil type, moisture,
temperature, wind, venting and leak rate.
The RMLD-CS operates under a variety of field conditions including a wide temperature range, light rain
and fog. Its rugged design will stand up to normal field use and operating conditions. Its sensitivity or
range is not affected by reasonable amounts of dust on the instrument’s window.
The RMLD-CS includes many new features which reduce costs and improve usage. These advanced features
include, but are not limited to:
User Interface
Light-Weight
Internal Data Logging
Rechargeable and Replaceable Battery
Wi-Fi
Dual Bay Charger
GNSS
Mobile App / 3rd Party App Support
Bluetooth BLE
Ergonomic Housing
Color Camera
Spotter Laser
Color Display
Self-Test

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
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6
Warnings & Definitions
Safety and Warning Information
It is essential that users of this instrument read, understand and follow the instructions for operation and
maintenance. The precautions contained in this manual are to ensure that the instrument is used in a
proper and safe manner.
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a hazardous situation, which if not avoided, could result in minor or moderate injury.
DANGER: Do not use the instrument in an explosive environment.
DANGER: To reduce the risk of ignition of a flammable or explosive atmosphere, batteries must be
removed, inserted and recharged only in a location known to be non-hazardous.
: Read and understand this manual fully before use.
: Follow the manual instructions and testing methods.
: The visible green Spotter laser is a Class 2(II) laser product. Do not stare into beam or view
directly with optical instruments.
: Avoid direct eye exposure to the laser and do not point in the direction of others. Visible
and Invisible Lasers are deployed by this instrument.
: Substitution of components may impair intrinsic safety. No user serviceable components
contained within this instrument.
CAUTION: Use of controls or adjustments or performance of procedures other than those specified
herein may result in hazardous radiation exposure.
CAUTION: No attempt should be made to repair the instrument. Should the instrument not work
properly, or indicate a fault or warning, refer to the troubleshooting section of this manual.

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
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Symbols Used
Caution
Information
Consult Instructions for use
IP54
Ingress protection
Do not dispose of this product in the unsorted municipal waste stream. Dispose of
this product according to local regulations.
Measurement IR Laser Radiation: Class I
Visible (Green) Laser Radiation: Class 2(II)
Do not stare into beam. Avoid direct eye exposure.
NOTE:
The manual captures information applicable to both firmware releases: 1.40-2.33-8 and 1.54-2.38-10. The
new firmware release 1.54-2.38-10 added security level features and new menu options not available on
earlier versions. These new features are highlighted in blue as shown below.
Firmware 1.54-2.38-10 and newer only

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
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Definitions
Beam Skip: Occurs when the IR beam jumps between a near object and a far object. This may cause a false
detection. This can also occur on highly reflective surfaces (windows, water, ice, etc.).
Dark Zone: An area not being scanned due to an obstruction. This may be an elevation change, the side of a
building, behind a curb, etc.
DMD (Digital Methane Detection): An advanced detection mode which, when activated, will only
alert the operator when there is a probable detection of methane.
Footprint: The surface area covered by the IR beam, which increases with distance. At 100 ft., this area is
22” in diameter when shined against a vertical background.
Infrared (IR): Optical radiation with wavelengths longer than those of the visible spectrum.
Laser Calibration Drift: A normal characteristic of tunable diode lasers is that the wavelength calibration
can drift slowly over time. The RMLD-CS has a built in Self-Test/Calibration feature to automatically
maintain proper calibration.
PPM-M (Parts Per Million Meter): The product of the methane concentration times the thickness of the
plume.
Real Time: An audible mode that will continuously emit a variable beep rate relative to the concentration
of gas. The response range covers 10 –1000 PPMM.
Spotter Laser: The green, blinking laser which guides the operator as to the location of the IR beam. This
laser can be activated through the left button located on the keypad.
Tunable Diode Laser Absorption Spectroscopy: A method of gas detection that utilizes a laser that,
when directed through a cloud of methane, will be partially absorbed by the gas and the return
signal can then be analyzed for gas concentration.

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
© 2021 Heath Consultants Incorporated. All rights
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Specifications
Detection Method
Tunable Diode Laser Absorption Spectroscopy (TDLAS)
Measurement Range
0 to 50K PPM-M. Concentration units shift at 10000 PPM-M and
higher to K PPM-M; example 9999, 10K, 12K, 20K, 50K
Sensitivity
5 PPM-M at distances from 0 to 100 ft (30m)
Detection Distance
100 ft (30m) nominal. Actual distance may vary due to
background type and conditions.
Beam Size
Conical in shape with a 22” diameter at 100 ft (55cm at 30m)
Detection Alarm Modes
Digital Methane Detection (DMD): Audible and visual alerts when
the alarm level is exceeded. Adjustable Alarm Level from 1 to
999 PPM-M.
Real Time (RT): Continuous audio beep rate relative to
concentration from 10 –1000 PPM-M.
System Fault / Warning
Audible alarm and visual indication on the display.
Self-Test
Built-in Self-Test function verifies operation and adjusts laser
wavelength for maximum sensitivity. Cal gas cell integrated
within carrying case.
Compliance
EMC (EN61000-6-2, EN6100-6-4)
Radio Equipment Directive (2014/53/EU)
ETSI EN 301 489-1 v2.2.0
EN 61326-1:2013
47 CFR Part 15 & ICES-003
Laser Eye Safety
IR Laser: Class I
Visible Laser: Class II
Do not stare into beam or view directly with optical instrument
Communications
USB Dual Mode –flash drive and communications
Bluetooth 4.2 BLE
Wi-Fi b/g
Display
3.5" LCD Color
320 x 240
Operating Temperature
0° to +122° F (-17° to 50° C)
Humidity
5 to 95 % RH, non-condensing
Instrument Protection
IP54 (water splash and dust resistant)

RMLD-CS Operator’s Manual
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Instrument Weight
3 lbs. (approx.)
Color Camera
Aperture f/2.6
FOV 94 DEG (at 6.0mm image circle)
GNSS
Compatible with GPS, GLONASS, Beidou, Galileo
Green Spotter
Class 2(II) <5mW @ 532nm
Spot size is 7mm at 15M
Carry Case
21" x 17.5" x 9.5"
Battery Pack
Removable, rechargeable Li Ion pack
10.8 Vdc at 2.6Ah
Battery Run Time
8 hours at 32 °F (approx.)
Battery Charger
External, 110-240 Vac, 50/60 Hz Universal, Dual Bay
Charge Time
2-3 hours full charge (approx.)
LED Charging Indicator
Integrated into Dual Battery Charger

RMLD-CS Operator’s Manual
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RMLD-CS Instrument and Accessories
Complete Kit Assembly - HPN 105301
(Includes Carry Case, Instrument, Test Cell, Carry Strap, Battery Charger, Battery Pack, USB Cable)
Instrument - HPN105354
This is the primary component of the RMLD-CS. In addition to the gas detection capability, it contains the
user interface, data logging interface, battery, power connector.
Carrying Case - HPN 105355
The carrying case provides protection for the instrument during storage and/or transportation. It also has a
built-in cal cell (HPN 106024) for calibration. The instrument should be kept in the case while not in use.

RMLD-CS Operator’s Manual
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Battery Pack - HPN 105384
1 rechargeable Li-Ion battery is supplied with instrument. The RMLD-CS has a removable, rechargeable
Lithium-ion battery that provides the main power to the instrument. This battery is designed to provide up
to eight (8) hours of operating time when fully charged. The battery must be recharged between uses to
assure no interruption in use.
Battery Charger - HPN 105358
The battery charger is provided to recharge the instrument’s battery after use. It has 2 slots for dual
battery charging. The charger is universal 100 - 240 VAC, 50-60 Hz with charger indicator on the front of
the housing. While charging, the LED light will blink green. Once a full charge is reached the LED light
will turn solid green.
USB Cable
The USB 2 A to USB micro cable is used for downloading data from the instrument to a computer and for
serial communications.

RMLD-CS Operator’s Manual
Doc No. 105408 Rev C, RMLD-CS Operator Manual
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Battery Pack, Charger and Charging Procedure
Battery Pack
The RMLD-CS has a removable, rechargeable Li-Ion battery pack that provides power to the instrument.
This battery pack is designed to provide up to 8 hours of run time when fully charged. The battery pack
must be recharged between use to assure no interruption in use.
The display features a remaining battery pack capacity (in percent) indicator in the top right of the screen.
The battery pack capacity indicator will turn red when the capacity gets low around 10 % and the
instrument will prompt the operator for acknowledgement on the display.
Dual Bay Battery Pack Charger
The dual bay battery pack charger supplied with the instrument can charge two battery packs
simultaneously. An integrated metal bracket is included on the bottom of the charger to allow for wall
mount or fixed mounting options. For wall mounted or mobile applications, HEATH recommends securing
the battery pack to the charger using the captive screws attached to the battery pack.

RMLD-CS Operator’s Manual
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The RMLD-CS power cord on the charger can be changed to fit the type of receptacle used in your location.
Non-US power cords must be specified when ordering.
Charging Procedure
DANGER: To reduce the risk of ignition of a flammable or explosive atmosphere, the battery pack must be
recharged only in a location known to be non-hazardous.
: Only use the HEATH supplied RMLD-CS battery pack charger to recharge the battery pack. Use
of any other charger may cause severe damage to the battery pack or electrical circuits.
CAUTION: To prevent damage to the battery pack or electrical circuits, always plug the charger into a
surge-protected outlet.
NOTE: The prolonged storage of the battery pack inside or outside the instrument can lead to battery
chemistry being irreversibly damaged leading to permanent failure of the battery pack. When storing the
instrument or the battery pack for more than a month, charge the battery pack to 40-50 % and store at
cool to room temperatures (about 60-70 °F). To obtain full battery pack capacity, charge the battery pack
when the ambient temperature is above 50 °F (10 °C).
To charge the battery, perform the following procedure:
1. Turn instrument OFF.
2. Unscrew the two captive screws located on the bottom of battery pack. Remove from
the instrument.
3. Insert the battery pack into the charger, ensuring it seated.

RMLD-CS Operator’s Manual
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a. Optional: Fasten captive screws into charger housing to prevent the battery
pack from dislodging.
b. LED panel will illuminate to show the status of the battery pack charging.
4. Charging Modes (The charger station displays charging legend):
a. Flashing Green –Battery pack charging
b. Solid Green - Battery pack fully charged
c. No light –Battery pack not present or not connected properly
d. Red –Fault, replace battery pack
i. Position battery pack into the other bay, if still red, try another battery pack.
ii. If the light is still red send to repair or replace.
5. Once the battery pack is fully charged, power up the instrument and verify the battery pack
capacity on the screen displays.
NOTE: Full charge time is approximately 2-3 hours.

RMLD-CS Operator’s Manual
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Operating the RMLD-CS
Turning Instrument On/Off
NOTE: On all screens, the middle button shuts down the instrument when pressed and held for at
least 3 seconds.
The instrument will start booting up. The display sequence is - starting logo, “Running diagnostics…”
at the bottom of the screen, the upper screen auto populates the User: Default along with other
information like the firmware version, time and day. When done the display will show a “Self
Diagnostics Ok”.
FW 1.54-2.38-10 or later
The first thing the instrument then checks for is a valid passing Self-Test file for the day. If not found,
a pop-up window appears informing the operator to conduct a Self-Test. The Self-Test prompt must
be acknowledged.
NOTE: Boot-up Self Diagnostics is not the same as Self-Test.
: The visible green Spotter laser is a class (II) 2 laser product. Do not stare into the beam
or view directly with optical instruments.
: Avoid direct eye exposure to the laser and do not point in the direction of others. Visible
and Invisible Lasers are deployed by the instrument.

RMLD-CS Operator’s Manual
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Button Controls
Navigate through screens and control features of the RMLD-CS using three (3) buttons which are
located below the display.
The available button functions vary depending upon the active screen.
After instrument is powered ON, the control buttons will be as shown below:
-First function (⊕ON) enables/disables the spotter
-Second function (MENU) displays the available features according to the access level
-Third function (MODE) displays the three (3) screen mode options (Survey, Graph, and Image)
Menu Buttons
When Menu is selected, the buttons change to the ones below letting you view and select available
features in the Menu.
-First button (↓), scrolls down through the Menu options
-Second (SELECT), selects the option highlighted
-Third, back arrow (⮌) returns to the previous level and it also works like an “enter/return”
when entering PIN and User Name.
Other Buttons
There are two more button configurations. One to use the camera under the Image screen and a
second the Login Buttons for entering credentials. These are covered in, “Screen Mode –Image” and
“Before Login-in” sections.
Login Buttons and System Access Levels are not applicable to FW 1.40-2.33-8 (and earlier) and can be
skipped.

RMLD-CS Operator’s Manual
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Screen Mode –Survey
The Survey screen mode will display a numerical readout of PPM-M readings. This allows the
operator a no-clutter screen to survey with the instrument.
During DMD Audio Mode, the Peak and PPM-M values will turn red while methane is detected above
the alarm level. The Peak value is held for two seconds before resetting to a lower current reading.
The Peak value will instantly change if a higher reading is obtained by the instrument.
FW: 1.54-2.38-10 or later
The maximum PPMM value displayed is 50K PPM-M. Any measurement above 50K PPM-M will
display ORNG (over-range reading). Readings from 10,000 PPM-M and higher are rounded to the
nearest thousand and appended with a “K”, i.e., 10 K, 12 K, 20K.
The active operator (DEFAULT, ADMIN, CUSTOM USERS) will be displayed in the top right corner
below the date.
Screen Mode –Graph
The Graph screen mode will display a bar graph in addition to the numerical readout of PPM-M
readings. This allows the operator to easily see the changing values while surveying with the
instrument.
During DMD Audio Mode, the Peak and PPM-M values will turn red while methane is detected above
the alarm level. The Peak value is held for two seconds before resetting to a lower current reading.
The Peak value will instantly change if a higher reading is obtained by the instrument.

RMLD-CS Operator’s Manual
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FW: 1.54-2.38-10 or later
The maximum PPM-M value displayed is 50K PPM-M. Any measurement above 50K PPM-M
will display ORNG (over-range reading). Readings from 10,000 PPM-M and higher are rounded
to the nearest thousand and appended with a “K”, i.e., 10 K, 12 K, 20K.
The active operator (DEFAULT, ADMIN, CUSTOM USERS) will be displayed in the top right
corner above PEAK.
Screen Mode –Image
The IMAGE mode allows the operator to view a live image of where the RMLD-CS is pointed as well
as current and peak PPM-M readings. This feature is especially useful in bright sunlight when the
green spotter laser may be hard to see.
NOTE: The center reticle is a general representation of where the IR beam is located. The beam may
not be located at the exact center of the circled image and the operator should always sweep the
area of interest to ensure beam coverage.