FTS G6-PM-MET1-INT User manual

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EXTREME ENVIRONMENTS. EXTREMELY RELIABLE.
G6-PM-MET1-INT/G6-PM-MET1-INT-SC
GOES Transmitter for use with
Met One E-BAM and E-SAMPLER
Operating Manual
1.800.548.4264 | www.ftsinc.com
700-G6-PM-MET1-Man Rev 1 13 Jun 2022
Part #21455

Contact Information
Canadian Headquarters:
1065 Henry Eng Place
Victoria, BC | V9B 6B2 | Canada
www.ftsinc.com
Toll-free: 1.800.548.4264
Local: 250.478.5561
Technical support portal: http://support.ftsinc.com
Email: [e-mail]

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TABLE OF CONTENTS
CHAPTER 1 INTRODUCTION 1
1.1 ABOUT THE MANUAL 1
1.2 GENERAL DESCRIPTION 1
1.3 DETERMINING THE GOES TRANSMITTER OPTION FOR YOUR E-BAM/ E-SAMPLER 2
CHAPTER 2 GOES TRANSMITTER ASSEMBLY 3
2.2 GOES TRANSMITTER 3
2.3 GPS ANTENNA 3
2.4 EON GOES ANTENNA 4
2.5 COMMAND PORT 4
2.6 STATUS PANEL 4
2.6.4 Synchronize Clock to GPS Indicator (SYNC GPS)................................................................... 4
2.6.5 DATA indicator........................................................................................................................................... 5
2.6.6 TRANSMIT (TX) Indicator...................................................................................................................... 5
2.6.7 FAULT Indicator......................................................................................................................................... 6
2.6.8 DIAGNOSTIC button............................................................................................................................... 6
2.7 SAMPLER COMMUNICATION INTERFACE BOARD 6
CHAPTER 3 INSTALLING THE TRANSMITTER ASSEMBLY 7
3.2 STEPS TO SETTING UP THE GOES TRANSMITTER 7
3.2.1 Mount the transmitter assembly (single and dual cable options)............................................ 8
3.2.2 CONNECT G6-PM-MET1-INT-SC (SINGLE CABLE OPTION) ......................................................... 9
3.2.3 CONNECT G6-PM-MET1-INT (DUAL CABLE OPTION) ..................................................................... 9
3.3 PARTICULATE MONITOR (PM) CONFIGURATION 10
CHAPTER 4 CONFIGURING GOES SATELLITE COMMUNICATIONS 11
4.2 GENERAL 11
4.3 COMMUNICATING WITH THE GOES TRANSMITTER 12
4.4 SETTING UP NOAA/EUMETSAT TRANSMIT PARAMETERS 12
4.5 DETAILS OF DEFAULT CONFIGURATION PARAMETERS 16
CHAPTER 5 VERIFYING COMMUNICATIONS 16
5.2 TRANSMISSION CYCLE 17
5.2.4 Time Synchronization..........................................................................................................................17
5.2.5 First Transmission Requirements................................................................................................17
5.3 CONFIRMING TRANSMISSION STATUS 18
5.4 FIELD MESSAGE RETRIEVAL 18

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5.5 GOES TRANSMISSION MESSAGE FORMAT 18
5.5.4 Sample GOES Transmission............................................................................................................19
CHAPTER 6 MAINTENANCE AND TROUBLE SHOOTING GUIDE 20
6.2 MAINTENANCE 20
6.3 TROUBLESHOOTING 20
6.3.1 Verify Sampler Interface Board Communication...........................................................................20
6.3.2 Verify Particulate Monitor Communication...........................................................................20
6.3.3 Trouble Shooting Using the Audit Log......................................................................................21
6.3.4 Failed Transmission..............................................................................................................................22
APPENDIX A G6 SPECIFICATIONS 24
APPENDIX B MESSAGE CENTERING AND EMPTY BUFFER MESSAGE 25
B.1 MESSAGE CENTERING 25
B.2 EMPTY BUFFER MESSAGE (EBM) 25
APPENDIX C GOES TEST TRANSMISSION 26
DOCUMENT REVISION HISTORY 29

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CHAPTER 1 INTRODUCTION
1.1 ABOUT THE MANUAL
This manual describes the installation and setup of the G6-PM-MET1-INT and G6-PM MET1-INT-SC GOES
Transmitters for use with Met One E-BAM and E-SAMPLER particulate monitors. As all functions of the two
GOES transmitters are the same, the transmitters will be referred to as the GOES transmitter throughout
the document except in those areas where a distinction between models is essential (specifically
installation), at which point they will be referred to by the model number.
1.2 GENERAL DESCRIPTION
Forest Technology Systems’ GOES transmitter is an add-on GOES transmitter for Met One E-SAMPLER
or E-BAM particulate monitors. When deployed, the GOES transmitter assembly will automatically
sense which style particulate monitor is connected. The GOES transmitter assembly (Figure 1-1) is
housed in a sealed case and attaches onto the same tripod used to hold the Met One particulate
monitor. For ease of installation, an omni-directional GOES antenna that eliminates the need to aim
the antenna at the satellite is included along with all connectorized cable/cables for power and
communication between the GOES transmitter and the particulate monitor. Upon installation, station
information and sensor data will automatically be transmitted over the GOES satellite system.
The G6-PM-MET1-INT comes equipped with separate Communication and Power cables and must be used
with the FTS power adapter (G6-PM-MET1-INT-PWR). The G6-PM MET1-INT-SC has a combined
Communication and Power Cable and does not require the FTS power adapter (See Figure 1-1). They both
come with the EON GOES antenna. Installation of the two options is slightly different but all other functions
are the same.
The GOES assembly option you need is dictated by the type of E-BAM or E-SAMPLER you have. See Section
1.3 for details.
Figure 1-1: GOES-PM-MET1 options with EON antenna
Power cable:
connects to
FTS power
adaptor
Communications
cable
FTS Power
Adaptor
EON
Antenna
G6-PM-MET1-INT (dual
cable) with power adaptor
G6-PM-MET1-INT-SC (single cable)
Single
communications/power
cable

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1.3 DETERMINING THE GOES TRANSMITTER OPTION FOR YOUR E-BAM/ E-SAMPLER
In order to determine if you need a dual or single cable GOES transmitter for your Met One particulate
monitor, inspect the Met One instrument connectors.
E-BAM/E-SAMPLER VARIANTS
GOES TRANSMITTER
OPTION
E-BAM and E-SAMPLER
G6-PM-MET1-INT
Must be used with:
FTS power adapter
(G6-PM-MET1-INT-PWR)
E-BAM E-SAMPLER
G6-PM-MET1-INT-SC
Note that the E-BAM pictured below cannot support a GOES transmitter.

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CHAPTER 2 GOES TRANSMITTER ASSEMBLY
The GOES transmitter assembly has several components. The function of each component is as follows.
Figure 2-1: Interior assembly components
NOTE: This figure shows the G6-PM-MET1-INT-SC. The interior components
for the G6-PM-MET1-INT will be the same with additional wiring for the power
cable on the left-hand side.
2.2 GOES TRANSMITTER
The GOES transmitter is the main component in the assembly. The GOES transmitter is responsible for
initiating communications to the attached particulate monitor as well as performing the GOES
transmissions. The GOES transmitter is manufactured by FTS and is field proven and highly reliable
2.3 GPS ANTENNA
The GPS Antenna signal is used by the GOES transmitter as a timing calibration standard in order to meet
the time and frequency tolerance requirements of the GOES system. The GPS antenna is housed inside the
enclosure to protect the antenna from the elements.
GPS Antenna
Command Port
GOES Transmitter
Status Panel
Communication
Interface Board
EON Antenna Cable
Connector
EON Antenna
Mount

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2.4 EON GOES ANTENNA
The EON GOES Antenna is an omni-directional antenna used to transmit the signal from the transmitter to
the GOES satellite. The omni-directional characteristic of the antenna eliminates the need for the user to
orient the station in a specific direction or to aim the antenna at the satellite at latitudes less than 53
degrees.
2.5 COMMAND PORT
The Command Port is a 9-pin (DB9) connector. This port uses RS-232 serial protocol and features a
command line, text-based interface to configure the transmitter.The Command Port can also be used to
check communications with the particulate monitor and to provide operational details on the GOES
transmitter. The RS-232 port settings required are:
• 9600 baud
• 8 data bits
• no parity
• 1 stop bit
• no flow control
Typically, Tera Term or another terminal emulation-style program running on a PC is used to communicate
with the transmitter. Communication with the GOES transmitter is normally achieved through a USB serial
port adaptor connected to the transmitter assembly’s Command Port. Through the PC’s Control Panel,
select Device Manager, and then Ports. The USB serial port adaptor will use the COM port. Note the COM
port number. When setting up the Tera Term (or similar program), select Serial and the appropriate
Communications Port.
Figure 2-2: Command port serial cable connection
2.6 STATUS PANEL
The Status Panel on the GOES transmitter consists of four indicators and a pushbutton. The indicators
provide visual feedback on the operation of the transmitter, and the pushbutton enables the user to query
the state of the transmitter failsafe circuit. Also, when power is first applied to the GOES transmitter, the
transmitter will go through a sequence of self-tests indicated by cycling four times through the FAULT, TX,
DATA, and SYNC GPS indicators.
2.6.4 Synchronize Clock to GPS Indicator (SYNC GPS)
After power is first applied to the GOES transmitter and the self-test cycle is completed, the transmitter will
attempt to acquire a GPS fix.
If all connections are correct, the SYNC GPS indicator will illuminate indicating that the transmitter is
acquiring a GPS fix and is trying to synchronize its clock to UTC time. The indicator will turn off when time

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synchronization is complete. Once the transmitter time is synchronized, it will be able to transmit on the
specified time schedule.
If the GPs antenna is not connected the synchronization light will illuminate for two seconds and then turn
off for a minute and a half. Check your antenna connections. It will continue this cycle until it detects a GPS
antenna.
IMPORTANT! Ensure you take at least two minutes to observe the Synchronize Clock to GPS
indicator once it turns off, to verify that it has synchronized. If the light remains off,
synchronization has been achieved. If it blinks and then turns off again, it does not detect an
antenna and you must check your connections and equipment.
Note that the first GPS fix after power up will normally be acquired within five minutes;
however, UTC time synchronization can take as long as 20 minutes. If the transmitter cannot
synchronize to UTC time during the first 20 minutes, the transmitter will switch off the GPS
module for one minute and then will restart the synchronization cycle. This process
continues until the transmitter successfully synchronizes to UTC time.
After initial time synchronization, the transmitter will attempt a single resynchronization to UTC time every
24 hours to correct its time drift. The transmitter is capable of operating for 28 days without a time
resynchronization. After 28 days, if a time resynchronization is not achieved, the transmitter will disable
transmissions. However, it will continue to attempt time resynchronization and, if successful, will re-enable
transmissions.
The most common reason for time resynchronization failure is because the GPS antenna is being blocked by
snow. If transmissions do not recommence with expected snow melt, or snow blockage is an unlikely
reason, contact FTS Support.
2.6.5 DATA indicator
The DATA indicator shows that the transmitter has acquired data from the particulate monitor and has
stored that data in the transmitter’s data buffer. The DATA indicator should be illuminated from
approximately 2 minutes past the sensor interval (when the particulate monitor is read) until one minute
prior to transmission time (when the transmitter empties and formats the buffer contents in preparation for
transmission). The light will remain illuminated if the sensor is read within the time frame prior to
transmission. Any data received within 1 minute of data transmission or during a timed transmission, will
not be included in the current transmission but will be buffered for the next interval.
2.6.6 TRANSMIT (TX) Indicator
The TX indicator will illuminate at transmission time for the duration of the data transmission (about three
seconds in total); however, if there is a failsafe error the FAULT indicator will blink twice to show that failsafe
has been tripped and the transmitter has been switched off.

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2.6.7 FAULT Indicator
The FAULT indicator is used in conjunction with the DIAGNOSTIC button to examine the state of the
transmitter’s failsafe circuit. If there is a failsafe error the FAULT indicator will blink twice when the
DIAGNOSTIC button is pressed. Typically, a failsafe error could occur if a transmission is attempted when
the supply battery voltage falls below 10.5 volts.
2.6.8 DIAGNOSTIC button
The Diagnostic button allows the user to query the state of the transmitter failsafe circuit and also allows
the user to clear the transmitter failsafe circuit if the failsafe has been tripped. To query the state of the
failsafe, push and hold the Diagnostic button for about 2 seconds and monitor the state of the Fault
indicator. The Fault indicator will flash once if the failsafe is OK (not tripped) or twice to indicate the failsafe
has been tripped.
A tripped failsafe indicates that there is a problem with the GOES transmitter. The failsafe is designed to
disable a malfunctioning transmitter in order to protect other users of the satellite system from a
transmitter that is transmitting outside its assigned transmission window. If the failsafe has tripped it can
be cleared by depressing the Diagnostic button for at least 10 seconds. If the failsafe continues to trip, the
unit should be returned to FTS for repair or replacement.
2.7 SAMPLER COMMUNICATION INTERFACE BOARD
The Sampler Communication Interface Board is an interface between the transmitter and the particulate
monitor. When requested by the transmitter, the interface retrieves and formats data from the attached
particulate monitor. The interface board automatically parses data from an E-SAMPLER or an E-BAM and
returns a common data string to the transmitter.

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CHAPTER 3 INSTALLING THE TRANSMITTER ASSEMBLY
This chapter outlines the steps to install the transmitter and configure the particulate monitor.
The G6-PM-MET1-INT is an add-on GOES transmitter which easily connects to either a Met One E-SAMPLER
or E-BAM particulate monitor. The transmitter assembly is self-contained: both the transmitter assembly
and the EON antenna are pre-mounted on their mounting brackets. The transmitter assembly also easily
attaches to either the E-SAMPLER or the E-BAM model particulate monitor.
Figure 3-1: Transmitter assembly components (single cable design illustrated)
3.2 STEPS TO SETTING UP THE GOES TRANSMITTER
In order to set up and verify operation of the GOES transmitter assembly, the following steps must be
completed. A detailed description of each step can be found in the noted sections.
1) Mount the transmitter assembly – see Section 3.2.1;
2) Connect to the E-BAM/E-SAMPLER:
a. G6-PM-MET1-INT-SC (single cable) – see Section 3.2.2;
b. G6-PM-MET1-INT (dual cable) - see Section 3.2.3. ;
3) Configure the particulate monitor for communication with the GOES Transmitter - see Section 3.3;
4) Setup GOES satellite communications and configuration - see Chapter 4;
5) Confirm Transmission Status - see Chapter 5 – Section 5.2;
6) Optional - Conduct a test transmission - see Chapter 5 - Section 5.3.
Note: test transmissions are conducted prior to the unit leaving the factory. For more information
on when and how to conduct a test transmission, refer to Appendix C.
EON antenna cable
connector
Power and
communications
cable
EON antenna
mounting flange
EON
Antenna
Detent
Pin
To E-BAM/E-SAMPLER Serial Comms port

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3.2.1 Mount the transmitter assembly (single and dual cable options)
The GOES transmitter assembly mounts to the tripod which holds the particulate monitor. First, set-up
the particulate monitor as per its instructions with the exception of mounting the cross-arm for external
sensors (this is mounted later). Then connect the GOES transmitter assembly and cross-arm (if using) as
described in the following steps.
To mount the transmitter assembly:
1) Remove the U-bolt on the bottom of the transmitter assembly
2) If installed on the tripod, remove the cross-arm used to mount the external sensors.
3) Align the cutout in the GOES transmitter’s mounting bracket with the cross-arm post and slide
assembly down until it comes to a rest on top of the tripod
4) Place the U-bolt around the tripod, through the assembly flange and tighten
5) Reconnect the sensor cross-arm (if originally installed)
6) Slide the EON antenna onto its mounting flange and secure the antenna with the detent pin
7) Connect the EON antenna cable to the antenna cable port on the transmitter assembly
Figure 3-2: GOES Transmitter Assembly Connection
1. Remove
U-bolt
2. Align cut-out with
cross-arm post and
slide assembly down
3. Place U-bolt
around the
tripod and
tighten.

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3.2.2 CONNECT G6-PM-MET1-INT-SC (SINGLE CABLE OPTION)
Power for the GOES transmitter assembly is supplied from the particulate monitor. The transmitter
assembly automatically starts operating when power is applied.
Connect the transmitter assembly’s communication/power cable to the particulate monitor’s Serial Comms
port located on the underside of the particulate monitor’s enclosure (see Figure 3-3).
Figure 3-3: Connection from G6-PM-MET1-INT-SC to E-BAM/E-SAMPLER
3.2.3 CONNECT G6-PM-MET1-INT (DUAL CABLE OPTION)
The FTS Power Adaptor is used in-line with the E-BAM/E-SAMPLER’s power supply to provide power to the
GOES transmitter assembly.Make the connections as shown in Figure 3-5 and described below:
1) Connect the GOES transmitter’s communication cable to the Met One’s sensor communication port;
2) Connect the GOES transmitter’s power cable to the FTS Power adapter as shown in Figure 3-5;
3) Connect the power cable from the FTS Power adapter to the Met1One Power port;
4) Connect the power cable from the Met One sensor AC Power supply box to the FTS Power Adaptor as
shown in Figure 3-5
PARTICULATE
MONITOR
Serial
Comms

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Figure 3-4: Connections from G6-PM-MET1-INT to E-BAM/E-SAMPLER (dual cable)
3.3 PARTICULATE MONITOR (PM) CONFIGURATION
In order for consistent data collection and proper system operation with the GOES transmitter, the following
settings must be input into the particulate monitor. Refer to the particulate monitor’s manual for details.
ITEM
SETTING
PM MODEL
EXPLANATION
Time UTC
E-SAMPLER
E-BAM
Time must be synchronized with the GOES transmitter1.
Average Period 60
minutes
E-SAMPLER This is the National Wildfire Coordinating Group (NWCG)
standard.
Real Time
Average E-BAM
Baud Rate
9600
E-SAMPLER
For communication between the transmitter and the PM.
GOES Setting
ON
E-BAM
From menu select: Item: GOES Setting: ON
Engineering
Units Metric E-SAMPLER
This is the NWCG standard.
Concentration
Units
mg/m3 E-SAMPLER
Once the particulate monitor is configured proceed to Chapter 4 to configure GOES satellite
communications.
1If the time on the particulate monitor is not synchronized, the transmitter may be supplied with the previous hour’s data
Power cable from MET
One
AC Power supply box
Power cable
from GOES
transmitter
Power cable to
E-BAM/E-SAMPLER
Detail of FTS Power Adaptor connections
PARTICULATE
MONITOR

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CHAPTER 4 CONFIGURING GOES SATELLITE COMMUNICATIONS
4.2 GENERAL
Normally the GOES transmitter assembly is supplied completely preconfigured and ready for deployment
with the exception of the GOES transmit parameters (unless these had been supplied to FTS prior to
shipping).
To determine the status of your transmitter, refer to the orange label found inside the transmitter assembly.
The Serial number and Date will be filled in at the factory. If the GOES parameters section has been filled in,
they were configured by the factory and once the assembly is powered up, no further action is required –
your system is ready to start collecting and transmitting data.
If the GOES parameters portion is left blank, you will have to configure the GOES satellite communications
with your NOAA assigned parameters following instructions in Sections 4.3 and 4.4.
Figure 4-1: GOES Parameters label
Once power is supplied to the GOES transmitter, it will go through a booting up cycle and GPS
synchronization (see section 2.5.1).While the GPS synchronization is taking place, the transmitter can be
configured to communicate with the GOES satellite system.

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4.3 COMMUNICATING WITH THE GOES TRANSMITTER
Communication with the GOES transmitter is enabled by connecting a PC which has a terminal emulation
program installed, such as Windows Hyper Terminal or Tera Term, to the transmitter assembly’s Command
Port. See Figure 2-1.
The GOES transmitter implements an ASCII command line interface protocol. ASCII commands are not case
sensitive but commas and some other characters are mandatory so care must be used when inputting the
commands to ensure the syntax is correct.
Communication with the transmitter is initiated by the carriage return (CR) command which is generated by
striking the Enter (or Return) key. The transmitter responds with a >prompt to indicate that it is ready to
receive a command. Commands can then be input and terminated by the Enter key (CR).
If no characters are entered for 60 seconds, the transmitter will enter low power mode. Any partially
entered commands will be deleted and the communication port will go to sleep. Communication must be
re-established by striking the Enter key (CR) until the >prompt is returned.
Commands must be terminated with the Enter key (CR). Any character received following an Enter will be
ignored. If you have message data with a CR in the line feeds (ie: so data will be printed out in columns
rather than a line), then the CR must be preceded with a tilde (~). Backspace (BS) deletes the last character
entered. ESC will delete the entire command.
Once all parameters or changes have been input, there are three commands which must be entered prior to
exiting
1) >SAVE – this will save the changes to the non-volatile memory
2) >RCFG – read configuration to confirm the input changes are accurate
3)>ETX – enable transmissions to check parameters for validity
If the >ETX command returns BAD PARAMETER instead of OK, an error was made inputting
the transmit parameters. Review the configuration and then re-enter the erroneous
command with the correct parameter.
4.4 SETTING UP NOAA/EUMETSAT TRANSMIT PARAMETERS
The first step in configuring the GOES is to enter the assigned transmit parameters. Transmit parameters
are provided to your agency by the United States National Oceanic and Atmospheric Administration (NOAA)
or the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT), depending on
your area of operations. These parameters allow users to retrieve data from their remote site using the
GOES Data Collection System (DCS).

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The transmit parameters consist of the following:
NESID2: The ADDRESS (an eight-character identifier) for your assignment.
Channel : Your assigned PRIME CHANNEL (TCH)
Bit Rate : Your assigned platform baud rate (TBR)
Interval : Your assigned REPORT RATE (TIN)
First Tx : Your assigned FIRST TRANSMISSION time (FTT)
Window : Your assigned XMT (transmit) WINDOW (TWL)
Table 4-1: Transmit Parameters explanations
The steps required for setting the transmit parameters follow:
1) Connect the PC to the Command Port and then start the terminal emulation program.
2) Start a text file capture so that you have a record of the Command Port session.
3) Ensure the transmitter is powered.
4) Press enter, then wait 2 seconds and then press enter again to wake the transmitter. The
transmitter should respond with a > prompt.
NOTE: Examples of the commands are provided. ASCII commands are indicated in bold,
example parameters or values are in red. Ensure you input your assigned parameters and
do not copy the red examples.
2The NOAA uses the term NESID (National Environmental Satellite Identification). The equivalent EUMETSAT term is
DCPID (Data Collection Platform Identification) or DCP Address. This document uses NESID.
NOAA/EUMETSAT Assigned Item
Comments/Explanation
NESID
This is the unique ADDRESS (eight character identifier) specific for the GOES
Station (for the position, not for the transmitter). Must end in an even
number.
NESID Channel
Channel number specified by NESID. Even channels are on the west satellite
and odd on the east.
NESID Bit Rate
Baud rate varies between platforms. NOAA will assign you a Baud rate based
on the information provided on your NESID request.
Transmission Interval
The transmission interval is how often transmissions are made and is specified
in dd:hh:mm:ss format.
V
alid range is 00:00:05:00 to 30:23:59:59.
First Transmission Time First time of transmission in hh:mm:ss format and in 24 hour clock. Valid
range is 00:00:00 to 23:59:59.
Transmission Window Length
Window sizes can vary. The most common are 10 or 15 second windows.

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5) Set the assigned NESID address
>NESID=01234568 : for example, set the NESID to 01234568
OK : the transmitter responds with the OK message
6) Set the Channel
>TCH=187 : for example, set the channel to 187
OK : the transmitter responds with the OK message
7) Set the assigned Bit Rate
>TBR=300 : for example, set the bit rate to 300 baud
OK : the transmitter responds with the OK message
8) Set the assigned Interval
>TIN=00:01:00:00 : for example, set the interval to 1 hour
OK : the transmitter responds with the OK message
9) Set the assigned First Transmit Time
>FTT=00:17:40 : for example, set the first transmit time to 17 minutes, 40 seconds
past midnight
OK : the transmitter responds with the OK message
10) Set the Window
>TWL=10 : for example, set the window length to 10 seconds
OK : the transmitter responds with the OK message
11) Issue a Save command to store the parameters in the transmitter’s nonvolatile memory.
>SAVE : save current parameters to non-volatile memory
OK : the transmitter responds with the OK message
12) Read the transmitter’s configuration to confirm the parameters. The following list will be returned.
Note that following the transmit parameters, the additional parameters are at factory default settings
and are explained in Table 4-2.

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>RCFG : enter the “read the current configuration” command
NESID=01234568 : the transmitter responds with the configuration –
TCH=187 NOTE: the displayed configuration is in accordance with the
TBR=300 example parameters (in red). Yours will return the figures/values
TIN=00:01:00:00 you input in the previous steps
FTT=00:17:40
TWL=10
CMSG=Y
EBM=Y
TPR=S
TIL=N
TDF=A
RCH=0
RBR=0
RIN=0
RPC=0
RRC=0
RDF=A
RMC=N
IRC=?
GIN=00:00:00
SDIMODE=SDI
SDF=3
ESBV=N
SIN=01:00:00 : Sensor Sample Interval
SOF=00:02:00 : Sensor Sample Offset
SDI 0 empty
SDI 1 empty
SDI 2 empty
SDI 3 empty
SDI 4 empty
SDI 5 empty SDI Command Table
SDI 6 empty. N/A for use with particulate monitors.
SDI 7 empty
SDI 8 empty
SDI 9 empty
If any of the returned parameters are different than the expected default settings, you must enter
the correct configuration. Section 4.4 provides details of the commands.
13) Issue an Enable Transmission command
>ETX : enable transmissions
OK : the transmitter responds with the OK message
NOTE: If it returns BAD PARAMETER instead of OK, an error was made inputting the transmit
parameters. Review the configuration and then re-enter the erroneous command with the
correct parameter.

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4.5 DETAILS OF DEFAULT CONFIGURATION PARAMETERS
The default configuration parameters are set at the factory specifically for communication with the
particulate monitor and transmission of the data. The default settings should not be changed. The
following table provides a brief explanation of the configuration parameters.
CHAPTER 5 VERIFYING COMMUNICATIONS
In order to verify communications, connect a PC to the transmitter assembly’s Command Port and then start
the terminal emulation program
3It is important to understand the difference between SIN and SOF. The SIN is how often samples will be taken, and the SOF is the time
at which the samples will be taken within the hourly interval.
Default Setting
Item
Comments
CMSG=Y Center Message in Window
Option Y (yes) selected. Message will be centered in the transmission
window. See Appendix C for details.
EBM=Y Empty Buffer Message
Option Y (yes) selected. Transmitter will always transmit even if there
is no data in the transmit buffer.
See Appendix B for details.2.
TPR=S
Transmit Preamble Length
Default Setting. Do not change.
TDF=A
Transmit Data Format
Default setting is A (ASCII).
RCH=0
Random Channel
N/A as the G6-PM-MET1 is not capable of random transmissions
(a data logger is needed to perform that function).
RBR=0
Random Baud Rate
RIN=0
Random Interval
RPC=0
Random Tx Random
Percentage
RRC=0
Random Tx Repeat Count
RDF=A
Random Tx Data Format
RMC=N
Random Tx Message Counter
IRC=? ASCII Replacement Character
Prohibited ASCII characters detected in the transmission data will be
replaced with a question mark (?) when operating in ASCII or Pseudo-
Binary mode.
GIN=00:00:00
GPS Fix Interval
The GPS will fix at power up and every 24 hours. .
SDIMODE=SDI
Transmitter Mode
SDI is the only mode available
SDF=3 SDI Data Format
This format is specific for use with particulate monitors. Do not
change.
ESBV=Y Enable SDI Battery Voltage
Option Y (yes) selected in order to receive a reading of the battery
voltage levels in the transmitted data.
SIN=01:00:00 Sensor Sample Interval
Samples taken every hour. In hh:mm:ss format3.
SOF=00:02:00
Sensor Sample Offset
Samples will be taken 2 minutes after the hour.