diff --git a/src/g5505_file_reader.py b/src/g5505_file_reader.py
index 572b892..2d06f0d 100644
--- a/src/g5505_file_reader.py
+++ b/src/g5505_file_reader.py
@@ -116,6 +116,10 @@ def read_txt_files_as_dict(filename : str ):
             config_dict = yaml.load(stream, Loader=yaml.FullLoader)
         except yaml.YAMLError as exc:
             print(exc)
+    # Verify if file can be read by available intrument configurations.
+    if not any(key in filename for key in config_dict.keys()):
+        return {}
+
 
     #TODO: this may be prone to error if assumed folder structure is non compliant 
     file_encoding = config_dict['default']['file_encoding'] #'utf-8'