Mudlogging Systems MLogger TG User manual

Troubleshooting Guide v2.6.5
Revised: 10/3/08
MControl can't Connect to the MLogger 6
MControl can't Connect to the MLogger Remotely 8
Total Gas is Stuck on 440, 480 or Some Large Number in MControl 9
CC, TC and/or GC Filament Readings are Erratic 9
MControl can’t Connect to the Internet 10
MLogger can’t Access the Internet using a Satellite 11
MControl can’t Connect to the Internet When using an EDR Workstation 13
Filament Baseline is Drifting on MControl after Zeroing them 13
100% Methane Test Gas Calibration will not Show Anywhere Near 10,000 Units 13
CCD won’t Read 100 Units When using the 1% Test Gas 14
Filaments won’t Adjust from a Negative Number to a Positive Number 15
Changing a Filament 15
MLogger Main Flow won’t Adjust Higher than 2 SCFH 15
MLogger Carrier Air Pressure won’t Adjust above 5 PSI 16
Chromatograph won’t Display any Gas Peaks 17
MControl Chromatograph Gas Peaks Are Wide Don’t All Appear Using the 1% Blend Test Gas 18
Chromatograph Peaks Appear with no Baseline 19
Chromatograph Appears as just an Erratic Scribble 19
MControl Chromatograph Readings aren’t Displaying Heavy Gases 19
Chromatograph Baseline Wanders 19
WITS Status Keeps Flashing “ERROR” on MControl 20
MLogger Won’t Boot Up After Turning on the Power 21
MLogger Keeps Rebooting 22
MControl Data Exports Don’t Show All Data, Only Seeing -9999 for My Chromatograph Data 23
Link to Operator’s Manual

2
This document is designed to help with the problems that may occur while the MLogger
is operating. Some problems will require the attention of a trained Mudlogging Systems
Technician. Please remember that the MLogger is a computer and is therefore subject to basic
computer malfunctions. The pictures that follow are used as a reference when attempting to
diagnose the MLogger problem. The support staff at MSI may need you to locate certain parts
on the unit to help troubleshoot the problem.
The MLogger is a complex and sophisticated machine. Before attempting to fix any
internal problems, please familiarize yourself with the components inside the box. The
following pictures are of the MLogger Model TGC or “Red Box”. The TG model or “Blue Box”
will not have the chromatograph components: carrier air gauge and regulator, column, GC
zero, carrier air filter housing, 24v pump, and chromatograph valve manifold. The picture
below is of the left hand side (when facing the front of MLogger) or Red Side.
Red Side

3
This is the right side of the box (when facing front of MLogger)
Blue Side

4
This is the front view of the MLogger Model TGC.
This is the back view of MLogger

5
Sample Flow Diagram

6
MControl Can’t Connect to the MLogger
1. Look at the front of the MLogger and verify that the “I’m Alive“ light (upper green light on
front) is flashing with a steady rhythm.
a. NOTE: If it is not flashing the system may still be booting up.
2. Be sure the Ethernet cable is securely in place at both ends (your computer and
MLogger). Wiggle the connections at both ends.
3. Try a different Ethernet port. There are three separate blue ports; it’s possible that one
has become damaged.
4. Try another Ethernet cable; be sure it is not a crossover cable.
5. Try going to a command prompt ( type CMD, then select
ENTER) in Windows, and type the following: telnet 192.168.123.3, then hit ENTER. If the
login page appears, then attempt to connect to MControl again.
6. Reboot your computer.
7. Check the router inside the MLogger to see if any green lights are blinking. When a
connection is good you should see two green lights above a port. One will stay on solid
while the other will flash. If there are no lights on the router, make sure all the Ethernet
cables are plugged in securely.
a. When connected to one of the blue ports, try unplugging and reconnecting while
observing the router. Verify that a light does show up when a connection is made
and disappears when unplugged. Note: some MLoggers will have a new wireless
router installed within them and these lights may be more difficult to see because
of its location.
8. When the MLogger is opened look for the Green Ethernet cable in the router. Located on
the blue side, this cable should have its lights working on the router. Note: some
MLoggers will have a new wireless router installed within them and these lights may be
more difficult to see because of its location. If there are no lights on the router for this
one, trace the green cable to where it connects to the processor and wiggle the
connection. Also, wiggle the connection made at the router and check for any lights
showing activity. If there is no light activity with the router after checking all the possible
connections, switch to the spare MLogger and contact the MSI office.

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9. Check your Internet Explorer. Look under File on the tool bar and at the bottom of the
menu there is an option for work offline. Be sure there is no checkmark in front of this
option.
10. Make sure that any Anti-virus and Firewall software is disabled or set to allow MControl
access to the Internet. MControl needs to have TCP/IP capability to talk with MLogger.
11. Ensure that the computer used to connect with MLogger is set up to obtain addresses
automatically (DHCP).
a. Left click on .
b. Left click on My Network Places.
c. Under the Network Tasks menu at the left of the window, left click on the View
Network Connections option.
d. Locate the Local Area Connection and place the mouse cursor over those words
and right click to bring up the pop–up menu.
e. Select Properties, this should bring up a window that lists all the types of items
that the Local Connection uses.
f. Select the TCP/IP item (be sure this box has a green checkmark in it too) and left
click on the properties button.
g. Check to see if the Obtain an IP Address Automatically has a bullet mark next to
it. If it doesn’t then this needs to be done. Also be sure that the Obtain DNS
Server address automatically has a bullet mark next to it too.
h. After this is finished connect with MControl.
12. When connecting with MControl and using the Connect to Logging Device window, be
sure the correct address is being entered (192.168.123.3).
13. When trying to connect remotely through a satellite, make sure your satellite modem or
router is passing ports to the MLogger. The MLogger’s router requires port 20, 21, 22, 23,
and 5001 in order to work properly.
14. Check the number of network connections. Follow steps 11a through 11d to find the
Local Area Connections the computer currently has. There may be more than one local
connection enabled and causing a conflict. Disable any unnecessary local connections,
reboot the computer, and try connecting again.
15. Look to see which connection the computer is trying to make first. Watch the video at
http://www.mudlogsys.com/downloads.html
a. Left click on and then left click on NETWORK CONNECTIONS.

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b. In the tool bar left click on ADVANCED and then select ADVANCED SETTINGS
from the pull down menu.
c. The next widow should be titled Adapters and Bindings. There is a list of the
different connections the computer is set up to make.
i. If a wireless connection is being attempted then it should be the first
connection listed, followed by the local area connection.
ii. Likewise an Ethernet connection is being attempted move the local area
connection to the top of the list, followed by the other connection types.
16. There is an advanced firewall option that needs to be turned off too. Watch the video at
http://www.mudlogsys.com/downloads.html
a. Left click on and select the CONTROL PANEL.
b. Select the WINDOWS FIREWALL icon and make sure the firewall is turned off.
c. In this same window find the tab labeled ADVANCED at the top of the window.
d. When on this advanced tab in the Network connection settings box uncheck the
box for the Local Area Connection and wireless connection.
MControl Can’t Connect to the MLogger Remotely
1. When attempting to connect remotely be sure to know the network capabilities. Are you
on an office network using a server? Some networks have strong firewall and antivirus
programs that may not be disabled. Check with the IT department in the office and ask
them to allow ports 20 through 23 and port 5001 to your computer. In most cases there is
no problem allowing this and the integrity of the network is safe.
2. If the network does not have a designated server and instead consists of a satellite and its
modem, check the configuration of both. The satellite may have a firewall blocking some
ports or its modem may not be passing the prescribed ports 20 through 23 and 5001.
3. There may be a technology conflict. The router in the MLogger may not have the
sophisticated hardware needed to talk with some of today’s latest satellites and routers.
If the satellite you are using is the latest model or version of software, chances are that the
router in MLogger is too old to talk with it. The latest MLoggers are being built with a
wireless Linksys router, but upgrading all these boxes will take time. To bridge this
techno gap, try placing another router in between the MLogger and the satellite router.
a. Set up the new router to obtain addresses automatically and to forward ports
20,21,22,23, and 5001 to the address 192.168.0.3
b. Plug the satellite router cable into the new router in the WAN port.

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c. Plug one end of an Ethernet cable into one of the new router’s LAN ports and the
other end into the MLogger’s WAN port.
Total Gas is Stuck on 440, 480 or Some Large Number in MControl
Watch the video at http://www.mudlogsys.com/downloads.html
1. Turn the ball valve on the blue side from Rig to Zero Air.
2. Turn the CCD and TCD zero knobs counter clockwise until they stop turning.
3. In MControl left click on Setup, and then left click on the Gas Detector tab.
i. Change the CCD Threshold and the TCD Threshold to a number that is greater
than the Total Gas reading (i.e. 100,000 if the TG=90,000 units).
ii. Left Click on Apply and then left click on OK.
4. Wait for the Total Gas to display zero units. NOTE: this will not happen instantly, the
Total Gas will hold on the number entered for the threshold. Then the TG will
switch from zero to the number entered and then back to zero. This all will take
place in approximately fifteen seconds.
5. Zero both filaments (see the MControl Manual for the procedure).
6. Reset the thresholds to the original values 480 for CCD threshold and 440 for TCD
threshold.
7. Turn the ball valve on the blue side from Zero back to Rig.
If the problem persists then you may have either a bad CCD or TCD filament. Always
turn the ball valve on the blue side from Rig to Zero Air when replacing a filament.
Replace the CCD filament first (this is the most common filament to become damaged).
CC,TC and/or GC Filament Readings are Erratic
1. Check the sample flow at the TG Flow meter. This meter should be set at 0.5 SCFH. If it’s
set high (0.8 SCFH) or the valve is turned all the way counter clock-wise this may cause
your filament signal to jump around too. Too much flow across the filaments will cool the
filament rapidly and as a result the signal will be erratic.
2. Check the flow coming in from the gas trap. Be sure nothing is blocking the continuous
gas flow.
3. Check all the exhaust lines at the back of MLogger. All lines labeled exhaust must have a
line connected and ran outside the trailer.
4. Look in the MLogger just behind the front panel for the back of the Zero Potentiometer
(Pot). In some cases the solder connections have worked loose, this is rare but has

10
occurred. If there are any loose solder joints then a soldering iron is required for this
repair. Contact the MSI office or personnel before any repair is attempted.
MControl can’t Connect to the Internet
Setting the router to obtain addresses automatically (DHCP) can fix the problem right away
and is the best thing to try first.
LINKSYS WIRELESS ROUTER
1. open Internet Explorer and type 192.168.123.254 in the address bar and hit enter
2. Login: admin Password: 0il-field (the 0 is a zero)
3. The router’s set up screen should be the next screen to appear and should look like
one of the two screen shots pictured below.

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In order for the router to find an address automatically (DHCP) left click on the pull down
menu labeled Internet connection type. Select the automatic configuration (DHCP)
option. Now scroll down to the bottom of this page and click on the Save Settings button.
The router is now set up to find addresses automatically.
MLogger can’t Access the Internet using a Satellite
1. If you have access to a satellite and can’t get to the Internet through the MLogger but you
can when you put the satellite cable directly to your computer. The router in the
MLogger needs to be reconfigured to recognize the satellite’s modem.
A. First find the IP address for the satellite.
i. Take the satellite Ethernet cable and plug it into the Ethernet port in your
computer.
ii. Go to the lower left corner on your Windows desktop and click on the Start
button. Select Run from the menu and when its window pops up type in cmd in
the prompt and click on OK or hit enter.
iii. A black window will pop up and will show a prompt that looks a lot like the old
DOS prompt. Next type in ipconfig and hit enter. Look for an Ethernet adapter
Local Area Connection. Copy down the IP Address, Subnet Mask, and Default
Gateway.

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B. Now set up the MLogger’s router with the IP address obtained from the satellite
modem. These next steps apply only to the Netgear RP114 router (dark blue color
with Netgear in dull silver letters). Newer MLoggers will have the new Linksys
wireless router. For those users complete the first two steps (i& ii) and go to step C.
i. Connect your computer back to the MLogger using one of the blue Ethernet
ports. Allow a few seconds to pass so your computer now has the router’s
address.
ii. Open up Internet Explorer and in the address bar type the following address:
http://192.168.123.254. An admin window will appear; User name: admin,
Password: 0il-field (the 0 in oil-field is a zero).
iii. After the password is entered correctly a white window with a dark blue border
will appear. At the left is a menu. Click on Wizard Setup and an orange
window will appear. Go to the bottom of this page and click on Next. Do the
same with the next window. Now this next orange window will have a heading
of WAN IP Address Assignment. This is where you need to enter the new IP
address, IP Subnet Mask, and Gateway IP Address obtained from step Ai-Aiii.
Next, change the Primary DNS Server address to match the Gateway IP
Address. Now once the numbers have been changed and are correct click on
the Finish button. The next window should display a “congratulations!”
message that lets you know everything has been done right. Now go to step D.
C. Linksys router users follow these next steps after completing steps Bi and Bii.
i. At the Linksys Setup menu change the static IP address, Subnet Mask, and
Default Gateway to match the satellite’s address numbers from step Ai-Aiii.
Change the Static DNS 1 to match the Default Gateway.
ii. Go down to the bottom of the page and click on Save Settings.
D. Now connect the satellite’s cable into the MLogger’s red WAN port. Connect your
computer to the MLogger’s blue LAN port and allow a few seconds to pass while the
router looks for an address.
E. Open the Internet Explorer and type in the address of any site to test the internet
connection.

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MControl Can’t Connect to the Internet When Using an EDR
Workstation
1. First check to see if you are connecting through an EDR’s Internet service. Most
companies will provide this through their workstation. The cable that the EDR’s
workstation uses should be a CAT 5 Ethernet connection and will connect to the back of
the workstation. There will most often be a second Ethernet port in the back of the
workstation. Take another Ethernet cable and connect it to the empty port on the
workstation. Connect the other end to the MLogger at the red WAN port located at the
back of MLogger. Make sure your computer is connected to MLogger through a blue
port for a local connection. Allow some time to pass so an address can be located with
the EDR’s server. Next open Internet Explorer and confirm that you now have internet.
2. When using a Pason workstation it is possible to use the MLogger’s router like a switch.
Plug an Ethernet cable into the Workstation’s second network port and the other end into
a blue port in MLogger. Connect your computer’s Ethernet cable into another one of
MLogger’s blue ports. Open Internet Explorer and access a web page to confirm.
Filament Baseline is drifting on MControl after zeroing them
1. This is caused by a temperature change in the atmosphere. The MLogger has a
heated detector block that houses the filaments. This block is kept at a steady 120
degrees Fahrenheit to help keep the sample gas at a constant temperature. However,
even with the heated detector block the base line will have a noticeable drift from
daylight to nighttime because of the natural temperature change.
2. Check the PID controller for activity. It’s located on the Blue side. The display should
read 120 degrees Fahrenheit, or close to it. If there is no activity, switch to the spare
MLogger and contact the MSI office.
100% Methane Test Gas Calibration Does Not Reach 10,000 Units
1. Check that all exhaust lines are connected. The main exhaust must be connected to
provide enough backpressure for a good sample. The total gas units may be off by
2000 units if there is no main exhaust line connected to the correct poly-flow fitting.
2. Check the TCD and CCD filaments; there may be a leak where it seals to the detector
block. Make sure the screws are snug; do not over tighten the screws. There should

14
be two screws set in opposite corners from one another on the TC filament. There are
three screws on the CC and GC filament.
3. It may be time to change the TCD filament. These filaments are quite robust but will
occasionally fail especially when a lot of moisture is present in the sample line.
4. Perform a quick leak check. Cover the Sample In port, Chromat Exhaust, and the
Detector Exhaust with your fingers and observe the three different flow meters. If all
the beads fall to zero then there are no leaks. If any or all beads remain above zero,
then there is a leak somewhere from the sample in port to the exhaust. Use the sample
flow chart to trace the MLogger plumbing and check for any cracks, kinks, holes, or
loose poly flow fittings.
5. Connect the 100% test gas to the Zero Air port and allow the gas to flow for about 30
seconds or more. See if the Total Gas units reach 10,000 units or close to it (9600 –
9800). If they do, then there is a leak at the IT pump. Check on the inside of the
MLogger on the Red Side and inspect the IT pump. Be sure all lines are connected. If
all the lines are connected then there is a leak in the pump itself. This requires the
pump to be replaced. Switch to the spare MLogger and contact the MSI office for a
new IT pump or replacement MLogger.
CCD won’t Read 100 Units When using the 1% Test Gas
1. Check and make sure all exhaust lines are connected and free of any obstruction.
2. There is most likely a leak somewhere around the CCD and/or TCD filament.
3. Look at the Red side of MLogger and locate the CCD filament.
a. Unplug the filament and remove the screws securing it.
b. Check the detector and compensator of the filament to locate the o-ring for
each one. There should be only one o-ring for each component.
c. Check the detector block for any stuck o-rings from other filaments.
4. Check to see how many turns into the CCD Zero pot the filament is.
d. Each Zero pot is a ten-turn pot and a new filament will generally zero 4 –6 turns
in from the end of the pot. If the filament in question is only two counter
clockwise turns away from the end of the pot, it should be changed soon.
5. Check the Calibration number for the CCD Voltage at 1% gas. This should be
between .9 and 1.5 Volts.

15
Filaments won’t Adjust from a Negative Number to a Positive
Number
1. Check the Total Gas Units in the Logging Parameters window. If the Total Gas is
above 480 units then the MLogger is using the TCD filament only.
a. Is there gas flowing through the detector? If there is, then the MLogger is using the
TCD filament and the CCD is turned off, this is a normal operation of MLogger.
b. If there is no gas flowing through the detector, then follow the steps provided here.
2. This is the first indication that a filament has gone bad. Remove the problem filament
and replace with a new one.
Changing a Filament
Watch the video at http://www.mudlogsys.com/downloads.html
1. Open the MLogger up by unscrewing the thumbscrews and pulling on the front. It will
slide out from its case.
2. Locate the filament in question on the Red side and unplug the ten-pin connector. Firmly
grasp the sides of the connector and pull. There are no clasps or latches holding the plug
in place.
3. Use a small Phillips screwdriver to remove the screws holding the filament in place.
Remove the old filament.
4. Insert the new filament and replace the screws. Replace the ten-pin connector.
5. Adjust the Zero knob for the corresponding filament to see the signal voltage change. If a
filament is changed and there is still no adjustment, check to make sure the ten pin plug
on the filament is lined up properly and pushed on all the way. Look for any wire that
may have accidentally been removed while taking the plug off.
6. Look in the MLogger just behind the front panel for the Zero Potentiometer (Pot). In some
cases the solder connections have worked loose. This is rare but has occurred. If there
are any loose solder joints then a soldering iron is required for this repair. Contact the
MSI office if this problem occurs.
MLogger Main Flow won’t Adjust Higher than 2 SCFH
1. Check the Sample line coming from the gas trap, it may be blocked or broken. Remove
the sample line and see if the flow returns.

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2. Check the Vacuum Jar Filter, the filter may be soiled. Also check to see if the clear jar is
screwed on correctly and is snug.
3. If the conditions outside are very cold, check the main exhaust line for any frozen
moisture.
4. Take a look inside the MLogger for any disconnected lines or loose fittings. Check for
any holes in lines that may be next to any vibrating pumps.
5. The bead in a flow meter may be stuck.
a. Turn off all flow through the meter with the adjusting knob.
b. Using a 7/16” wrench remove the plug at the top of the flow meter. Use a pipe
cleaner to clean and free up the bead.
c. Or try this.
i. Disconnect all the power, serial, and exhaust lines from MLogger. Once the
box is free from any tether turn the unit upside down and tap on the flow
meter to free a possible stuck bead.
MLogger Carrier Air Pressure won’t Adjust above 5 PSI
1. The carrier air is brought through the carrier air port located at the back of the
instrument. Directly behind that port, inside the MLogger, there is a small brass tube
that houses a 15-micron filter. This filter is most likely soiled and needs to be
replaced.
a. First locate the replacement 15-micron filter. It will be in the lower left hand
corner of the Red side of the MLogger (see picture below).

17
b. Remove the Filter Housing by loosening both poly flow fittings with a 7/16”
wrench.
c. Open the Filter Housing using two 9/16” wrenches on opposite ends. When the
housing comes loose be careful not to lose the small spring located within (see
picture below).
d. Replace the filter and make sure the number “15” is showing face up when placed
inside the housing. Followed by the spring and then the top will screw back into
place.
e. Tighten the housing with the 9/16” wrenches and replace the Filter Housing back
in line with the Carrier Air port using the 7/16” poly low fittings.
2. If the Carrier Air still won’t adjust after changing the 15 Micron filter, then the
Regulator may be bad.
a. Check all fittings by tracing the flow using the flow diagram.
b. If all fittings are tight and no leaks are found, then the regulator needs to be
replaced. Switch to the spare MLogger and contact the MSI office.
3Look inside the MLogger on the Red Side. Identify the 24-volt pump and feel if there is
any vibration in the pump. If the pump is quiet and still, then it has gone bad and
needs replaced. Switch to the spare MLogger and contact the MSI office.
Chromatograph won’t Display any Gas Peaks
1. Re-Zero the GC filament and try another chromatograph run. Note: do not re-zero
the GC when the chromatograph is running; be sure the chromatograph is
stopped.
2. Check the scale used to measure the chromatograph window. Verify that the correct
scale has been selected. Small curves require a small scale to observe.
3. Check the GC flow meter to see if it will adjust. If it doesn’t adjust, the ball valve may
be turned to Test Gas. Or, there may be a leak before the sample reaches the flow
meter.

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4. Check the carrier air pressure gauge located at the front of MLogger. Pull on the
black knob of the pressure regulator to unlock the regulator and turn clockwise to
increase the pressure.
a. If the needle on the gauge does not adjust, then the filter may need to be replaced
(see carrier air won’t adjust).
b. Open the MLogger up by loosening the thumbscrews at the top and bottom on the
front panel. Look at the lower right hand corner of the Red Side and locate the 24
Volt Pump. Check to see if the pump is running. This pump pushes all the sample
gas through the column. If it has stopped then a replacement is needed. Switch to
your spare MLogger and contact the MSI office.
5. Inspect the GC filament located on the Red Side of MLogger. This is a CCD filament
and is subject to failure. If the small blue bead in the CCD filament is black, gray,
cracked, or has small black dots on the surface, replace the filament with another
CCD. Click here for procedure
6. If the filament is good, there is carrier air pressure, and the GC flow is at 0.5 SCFH,
then the Chromatograph Valve Manifold may be malfunctioning. Check the 1/8”
poly-flow fittings for any loose connections or holes in the line. If no leaks are found
then there is a bad valve in the manifold. Shut down this box and switch to your spare
MLogger. Contact the MSI office for a replacement.
7. Check for any leaks in the Column. It is very unusual for there to be holes in the
column line but make sure the connection at the Detector Block and the
Chromatograph Valve Manifold are tight.
MControl Chromatograph Gas Peaks Are Wide and All of Them
Don’t Appear When using the 1% Blend Test Gas
1. Having wide peaks appear and not having all the peaks appear are traced to two
possible problems.
a. Check the run time of the chromatograph in MControl. The run time should be set
(by default) at five minutes. If the run time is shorter than this the chromatograph
will finish the run before the heavier gases come through the column.
b. Check the carrier air pressure to see if it will adjust. The default setting for the
pressure is printed out on the calibration sheet enclosed with the unit in the front
lid. It will be between 8-11 psi.

19
c. The chromatograph run time and the carrier air pressure have a give and take
relationship. If the run time is increased, then decrease the carrier air pressure. If
the run time is decreased, then increase the carrier air pressure.
Chromatograph Peaks Appear with no Baseline
1. Re-zero the GC filament while the chromatograph is stopped and complete another
calibration run.
2. Check the scales of the chromatogram. Some adjustment may be needed.
Chromatograph Appears as just an Erratic Scribble
1. Check the exhaust lines and be sure they are attached and running to an outside
location to exhaust.
a. Be sure the carrier air intake is not sucking in any exhaust from the exhaust
lines.
2. Check for interference from an electromagnetic field.
a. Check for any fuzz buster, HAM radio antenna, or satellite phone in operation
close by.
b. Cell phones in use next to the MLogger can sometimes affect the filament
signals. Use the phone a distance away from the MLogger.
MControl Chromatograph Readings aren’t Displaying Heavy Gases
1. Increase the run time to twelve minutes and run another chromatograph. Do not
increase the run time to more than fifteen minutes.
2. Increase the carrier air pressure (do not exceed 12 PSI) and then increase the run
time.
Chromatograph Baseline Wanders
1. Check the exhaust lines at the back of the MLogger. The carrier air may have sucked
in exhaust gas from the detector. Recycled gas shows up as strange curves and peaks
in the chromatograph.
a. The detector exhaust, chromatograph exhaust, and the main exhaust must all
have lines connected to them. Run these lines to the outside of the trailer.

20
b. Check the carrier air port for any obstructions or chemical emissions close by.
If there is a line for the carrier air that is run outside, be sure it doesn’t intake
next to any exhaust lines.
WITS Status Keeps Flashing “ERROR” on MControl
1. Check the connection of RS-232 serial plug at the back of MLogger labeled COM 2. If
the connection is made at the front of MLogger check that the plug is in COM 1.
2. The cable that is supplied with MLogger is a crossover cable, otherwise known as a
null modem cable. Check the cable ends for the identifying label “null modem”.
Standard serial cables will not work with the MLogger.
a. Make sure the settings in MControl are correct.
i. Click on the Setup option in MControl’s toolbar
ii. Check the WITS Input bullet is marked.
iii. Check the WITS Interface. Be sure the correct EDR company shows in
the white field.
iv. Check the WITS port for the correct connection. COM 1 in the front or
COM 2 in the back.
3. MControl 2.6.5 and later, has a WITS Self Test option
a. Connect one end of the null modem cable to COM2 and the other to COM1 on
the MLogger.
b. Select the WITS Self Test option in MControl by left clicking on Setup and
selecting WITS Self Test from the WITS Interface drop down menu.
c. Select APPLY, then observe the WITS STATUS box under LOGGING
PARAMETERS, if it changes from ERROR to OK, then both of the COM ports on
the MLogger are working correctly, so the problem may be related to the data
records being sent from the EDR.
EDR Company
WITS setting
Pason
WITS Interrogate Mode, Pason
Workstation, or Pason Server
MD Totco
Streaming WITS
Epoch
Streaming WITS
All Others
Streaming WITS