diff --git a/script/hyst_Er.py b/script/hyst_Er.py
index b4ecb06..8ca1a84 100644
--- a/script/hyst_Er.py
+++ b/script/hyst_Er.py
@@ -1,20 +1,20 @@
 open_valve()
 
 set_pol_cplus(offset = 0)
-set_file('Er_hyst_plus')
-hyst_cont(field_x, 6.8, -6.8, 2.0, [777.7, 772])
+set_file('Co_hyst_plus')
+hyst_cont(field_x, 6.8, -6.8, 2.0, [777.1, 774.5])
 
 set_pol_cminus(offset = 1.5)
-set_file('Er_hyst_minus')
-hyst_cont(field_x, -6.8, 6.8, 2.0, [777.7, 772])
+set_file('Co_hyst_minus')
+hyst_cont(field_x, -6.8, 6.8, 2.0, [777.1, 774.5])
 
 
-set_file('Er_hyst_minus')
-hyst_cont(field_x, 6.8, -6.8, 2.0, [777.7, 772])
+set_file('Co_hyst_minus')
+hyst_cont(field_x, 6.8, -6.8, 2.0, [777.1, 774.5])
 
 set_pol_cplus(offset = 0)
-set_file('Er_hyst_plus')
-hyst_cont(field_x, -6.8, 6.8, 2.0, [777.7, 772])
+set_file('Co_hyst_plus')
+hyst_cont(field_x, -6.8, 6.8, 2.0, [777.1, 774.5])