add try except for getting measurands

[drc38]

fix #1275

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.27%. Comparing base (4c6f266) to head (07a7056).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1290      +/-   ##
==========================================
+ Coverage   91.10%   91.27%   +0.16%     
==========================================
  Files           9        9              
  Lines        1383     1387       +4     
  Branches      222      222              
==========================================
+ Hits         1260     1266       +6     
+ Misses         66       65       -1     
+ Partials       57       56       -1     

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[rinigus]

Note that this PR does not resolve issue #1275. Please reopen the issue.