Hello,
I am doing some tests with my setup, working with a CR10X, a type K thermocouple and trying to look at my data on PC200W.
The setup worked previously when connected to Loggernet on an other computer (a mac). Now on my PC, the connection is established but there is no data, no realtime value (the clock is running, the batterie is ok, but the sensor case remains empty, the input location is -INF). When I collect the data, the values are infinite, like if there was no thermocouple connected.
Nothing has changed between this set up and the other, it is exactely the same as previously.
I checked everything, the connection is good;I changed the channels, no difference, and the thermocouple is ok as it worked previously with the mac.
I downloaded the trial version of loggernet on this PC, it is the same than with PC200W, no values.
I don't really know what else to check or change, as I don't understand where the problem could come from !
Also I don't have all the options of PC200W/Shortcut, even if it is the latest version : for example, when connected, the 'file control' option of PC200W is inactive. In Shortcut, I can only put numbers for Array ID (no letters as in the tutorials) and the recording is only in minutes.
I don't know if it can be related to the previous issue ?
I am really stuck with this problem and it seems to be that it is a very silly mistake, but still, I can't spot it, so any thoughts about what can be going wrong will be very, very appreciated !
Thank you by advance for your help !
Hello Ada,
Did you remove power from your CR10X between LoggerNet and PC200W? I'm guessing that the CR10X's internal battery needs to be replaced. See section 14.11.2 of the CR10X manual.
The video tutorials you have watched use a much newer datalogger. Not all features in LoggerNet or PC200W are available with our old Edlog dataloggers such as the CR10X. The CR10X does not have a file-system so you can't use File Control, etc.
Janet
Hi Janet,
Thank you for looking into my question;
Yes, I have switched the all system off between the use of the two softwares; I am actually trying to fix the matter since a couple of days now, so I have had time to uninstall/reinstall the complete set up, try the wires on other devices, etc.
About the batteries, I don't know if it could be the problem because for checking that the issue come from the CR10X, I have powered it via a CR23X connected tothe ground.
I now communicate with the CR10X by the CR23X, but I have exactely the same situation.
Thank you for the reminder about the obsolete version of the dataloggers I use, it make sense that I don't have all the possible options (yet, with Loggernet, I am not even able to see the real time data, which I thought was a basic function ?)
Many thanks for your help,
A.
If the internal battery is dead and you have not re-sent the program then there is not program in the CR10X. The internal battery is different than the power you are getting from the CR23X. Re-send the program to the CR10X from the Connect screen in LoggerNet. Delete all fields from the Numeric Display, add them again. Do you start seeing values now?
Hi Janet,
I have re-sent the program after disconnecting/reconnecting the data logger, and try different programs. Also, I have tried a differential plugging (H and L) and to put both wires of the thermocouple in the H connection, no change.
On PC200W's numeric display, I have the time stamp, the battery voltage, but still '-INF' for my temperature. If I collect the data, no surprises, I have '-6999' for each measure. if I delete everything and repaste it, I have no value for every parameter (even the time stamp and the battery voltage are left blank). I have to disconnect/reconnect to see the battery voltage and the time stamp appear. But the temperature measure is always blank.
Is it possible that the fact I have LoggerNet and PC200W on the same computer causes an interference and creates the problem ? I would uninstall Loggernet but probably loose the trial version this way..
Thanks again for your help,
A.
Just to update the topic, two softwares on the same computer are definitely not the cause of the issue.
I have tried my thermocouples on the CR23X directly and I have a reading from 'input location temperature'.
Anything I paste from the Array table stays blank, the only values I can get are from the 'input location'.
I also don't know what are these temperature read from the input location, because the values are somehow wrong (about 12°C, I am inside a close and heated room, the reference is 'BattV' which if I understood well is the internal reference just below the wiring pannel).
BattV is a measurement of the battery voltage. You need to add the Panel Temperature measurement to use as a reference for thermocouple measurements. Input locations are the most recent readings.
If you are using the data monitor, the software will continually ask for the current readings in the input locations for display. The values shown in the storage arrays will only update when you collect data.
Hi JDavis,
Thank you for the clarifications.
However,I still don't get why the temperature values are 10°C inferior to the real one ?
Also, with the CR10X, even after collecting the data, the values recorded are -6999. Could it come from a storage problem ?
Thank you very much for you help and patience,
A.
PS.and may I ask why during the sensors choice, BattV or ProSig is mention as a 'temperature reference' choice?
The reason you see BattV or ProgSig is because all of the variables are shown. It is not able to determine which variables are valid choices. It simply lists what is available.
Since you are currently using BattV as your reference (which isn't a valid reference), your battery value must be about 10 less than what your reference temperature would be. Your temperature measurement will not be accurate until you have a valid reference.
The reference should be Panel Temperature: In Short Cut, you need to go to the Sensors. In the Temperature section you need to find "CR10XTCR (wiring panel temperature)". Add that so it shows up on the right side of the screen like your thermocouple does. Then edit the thermocouple measurement to use the PanelTemp variable as the reference instead of BattV. The default name for Panel Temperature is PTemp_C.)
Ada,
I'm sorry to confuse you. The CR10XTCR is a separate sensor that you may or may not already have installed. From the notes: "The CR10XTCR is a thermistor that is designed to lie against the datalogger wiring panel and give an accurate measurement of the wiring panel temperature. This temperature is generally used as a thermocouple reference temperature." You will see an image when you have it selected. There is an image here: https://www.campbellsci.com/cr10xtcr
Another choice in the Temperature section is "Datalogger Internal Temperature", but the note below says "...This temperature is generally not adequate for use as a thermocouple reference temperature. The default name for this one is ITemp_C.
In Short Cut, be sure to look at the wiring diagram and make sure things are wired as Short Cut has programmed them. The wiring will show up in different order depending on the order you Selected/Added different sensors. Incorrect wiring will give you invalid values or INF.
Hi Terri,
Thank you very much for your answer, it makes things much more clearer now.
For the moment I still can't find what is wrong with the CR10X, as I don't have any value whatever channel/program/thermocouple is used.
At least the CR23X has now a correct temperature reference, so if there is no solution I will just avoid to use the CR10X by wiring more multiplexers to the CR23X.
If using a general purpose multiplexer such as the AM16/32 for thermocouples, you either need to measure the temperature of the multiplexer for the reference or use thermocouple wire between the multiplexer COM channel and the datalogger and use the datalogger temperature for reference.
There is an entire chapter on thermocouple measurements in the datalogger manual.
Perhaps the internal Lithium battery is dead ? In Loggernet/Connect, you can click on "Station Status" to check the internal battery status. Question for the kind CS folks here -- can one replace the internal batt of an old CR10X ?
The lithium battery needs to be above 2.4 volts. It is replaceable battery, model CR2430. Section 14.11 of the CR10X manual has instructions on replacing it. If you don't have the manual you can download it from this site,