diff --git a/striptease/hdf5files.py b/striptease/hdf5files.py
index 4bacf99..6ef25be 100644
--- a/striptease/hdf5files.py
+++ b/striptease/hdf5files.py
@@ -534,7 +534,7 @@ def load_hk(self, group, subgroup, par, verbose=False):
         hk_data = datahk["value"]
         return hk_time, hk_data
 
-    def load_sci(self, polarimeter, data_type, detector=[], check_overflow=True):
+    def load_sci(self, polarimeter, data_type, detector=[]):
         """Loads scientific data from one detector of a given polarimeter
 
         Args:
@@ -552,10 +552,6 @@ def load_sci(self, polarimeter, data_type, detector=[], check_overflow=True):
                 no value is provided for this parameter, all the four
                 detectors will be returned.
 
-            check_overflow (bool): If ``True``, the sign of ``PWR`` data
-                will be checked that they do not overflow the
-                ``numpy.int32`` type.
-
         Returns:
 
              A tuple containing two NumPy arrays: the stream of times
@@ -615,14 +611,6 @@ def load_sci(self, polarimeter, data_type, detector=[], check_overflow=True):
             column_selector = tuple([f"{data_type}{x}" for x in detector])
 
         converted_data = scidata[column_selector]
-        if data_type == "PWR" and check_overflow:
-            if converted_data.dtype.names:
-                for cur_field in converted_data.dtype.names:
-                    assert np.all(
-                        converted_data[cur_field] >= 0
-                    ), f"Field {cur_field} has out-of-bounds values"
-            else:
-                assert np.all(converted_data >= 0), "Data have out-of-bounds values"
 
         return scitime, converted_data