Index: dialin/dg/calibration_record.py
===================================================================
diff -u -rdb8ddd4bfa6e17b7139a0044eddcc666a0f7ccfe -r678a80ec7556be07e4cd74f382b0cc215aed940a
--- dialin/dg/calibration_record.py	(.../calibration_record.py)	(revision db8ddd4bfa6e17b7139a0044eddcc666a0f7ccfe)
+++ dialin/dg/calibration_record.py	(.../calibration_record.py)	(revision 678a80ec7556be07e4cd74f382b0cc215aed940a)
@@ -50,7 +50,7 @@
     _DEFAULT_TIME_VALUE = 0
     _DEFAULT_CRC_VALUE = 0
     _DEFAULT_FLUSH_LINES_VOLUME = 0.01
-    _DEFAULT_ULTRAFILTER_TAU_C_PER_MIN = -1.0
+    _DEFAULT_ULTRAFILTER_TAU_C_PER_MIN = -0.6
     _DEFAULT_RESERVOIR_TAU_C_PER_MIN = -0.25
     _DEFAULT_ULTRAFILTER_VOLUME_ML = 700
     _DEFAULT_COND_SENSOR_TEMP_COMP_COEFF = 0.0207