Index: dialin/dg/calibration_record.py
===================================================================
diff -u -r621bb43cdd732ac9f81c4b2d0912c52bbbb084ab -rb5d539cbe178752cbafe959e7c2abbcc972035a1
--- dialin/dg/calibration_record.py	(.../calibration_record.py)	(revision 621bb43cdd732ac9f81c4b2d0912c52bbbb084ab)
+++ dialin/dg/calibration_record.py	(.../calibration_record.py)	(revision b5d539cbe178752cbafe959e7c2abbcc972035a1)
@@ -38,6 +38,7 @@
     _DEFAULT_OFFSET_VALUE = 0
     _DEFAULT_RATIO_VALUE = 1
     _DEFAULT_VOLUME_VALUE = 0
+    _DEFAULT_EMPTY_RESERVOIR_WEIGHT_G = 1700
     _DEFAULT_ACID_MIX_RATIO = (2.35618 / 100)
     _DEFAULT_ACID_BOTTLE_VOL_ML = 3430.0
     _DEFAULT_ACID_COND_US_PER_CM = 11645.05
@@ -585,7 +586,7 @@
                 hardware[i] = {'reservoir_volume': ['<f', self._DEFAULT_VOLUME_VALUE],
                                'normal_fill_volume': ['<f', self._DEFAULT_VOLUME_VALUE],
                                'max_residual_fluid': ['<f', self._DEFAULT_VOLUME_VALUE],
-                               'reservoir_unfilled_weight': ['<f', self._DEFAULT_VOLUME_VALUE],
+                               'reservoir_unfilled_weight': ['<f', self._DEFAULT_EMPTY_RESERVOIR_WEIGHT_G],
                                'cal_time': ['<i', self._DEFAULT_TIME_VALUE],
                                'crc': ['<H', self._DEFAULT_CRC_VALUE]}
             else: