How to Edit HAWCmon Measurement Types

To change any information regarding the Measurement Types (such as the Type id, Measurement name, Type, Data type, Units, Sensor id, Warning lower, Warning upper, Alarm lower or Alarm upper), you will need to access the official HAWC Experiment Monitoring website, which is the University of Maryland's (UMD) HAWCmon. Please note there are two HAWCmon sites, one at MSU and one at UMD. These changes can only be made from the UMD site.

The HAWCmon website is private, so you will need a HAWC internal user account created for you. An additional Admin username and password is also required to make any changes to the existing HAWCmon site. Once you have both of these and are already logged in, you can edit the Measurement Types here.

Or, from the home page of the HAWC internal website, click on the "Hawcmon" tab at the top. From there, you will be taken to the home page of the UMD HAWCmon site, called the Dashboard. Select "Admin Page" in the lower right hand corner, then select "Measurement_types" or the "Change" button beside it (both will take you to the same page). You should then be able to see all of the measurements displayed in the HAWCmon website. From here, you can scroll/page through to the measurement(s) you need to edit.

Things to Remember:
  • Go to the Measurement Types web page first to look around, and also to find out what Type id numbers you will be changing.
  • You may not be required to change the data in all 10 columns of the Measurement Type. Be sure you know exactly what columns will be changed, and what columns need to stay the same.
  • If you are given two (or more) sources that contain the measurement data you are updating, it's a good idea to cross check and make sure there are not any discrepancies. If you do notice different values reported for the same measurement, document it and let someone know right away.
  • To edit any of the columns for a particular measurement type, click the type id number to begin.
  • If you will be editing a large number of entries, consider creating a table first to stay organized and also double check your work.
  • After entering the updated information in the editing window, it might be faster to click the "Save and continue editing" button, then hit the return arrow in your browser and refresh the page, as opposed to clicking the "Save" button, which takes you back to the beginning of the Measurements list.
HV Measurements Information:
  • There are two sources available for the HV Measurements: HAWCmon's Wiener Crate Monitor and the HAWC Internal Electronics Configuration Wiki page
  • The information needed from the first source can be found in the table "Wiener HV" and from the second source, the information will be found under the tables FEB crate 1, 2, 3 or 4. If you are editing HV Measurements, you will be told which FEB crate(s) to use.
  • You will most likely be entering a large volume of information, and making a table first could be useful (example table)
  • From the example table, notice that each measurement name ends with " _v" or with " _c", which stand for voltage and current. Each HV measurement essentially comes in a pair, which share the same HV channel number and the same tank locations.
  • In this example table, there are only two columns of information to gather from the two sources mentioned above (since the last column is zero), which are the Type and the Warning lower.
  • If the exact Warning lower value is not yet known, you may be asked to substitute the "Set Voltage" value which can easily be found using source one.
  • The Type follows a very clear pattern. From the example table, we see the first entry for Type is "103, Tanks U8, T8". The first value, 103, simply indicates the HV Channel, while the second value indicates the tank locations.
  • To determine the HV Channel, you need to use the second source, the HAWC Wiki page. Identify the correct FEB crate table and then the 2 rows marked "HV Channel". You will notice there are eight PMTs (marked A, B, C, D) listed below the HV Channel row and its voltage at the top, and another eight PMTs listed above the HV Channel row and its voltage at the bottom. These eight PMT's indicate the two tank locations for the nearest HV Channel. So "103, Tanks U8, T8" was found by visiting the HAWC Wiki hyperlink above, scrolling down to FEB crate 3 mapping (where I was told to look), finding the voltage that matched my type id (that I found using source 1), locating the two tanks either above or below my voltage value, and then recording the HV Channel number.
  • Notice that the Type is the same for both the voltage and the current.
  • Notice that Warning lower (which is the voltage) varies.
  • Note that some HV Channels include letters.
Topic revision: r1 - 25 Jun 2014, KristaSmith

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