diff --git a/script/device/Auto.py b/script/device/Auto.py
index 01da827..d86353c 100644
--- a/script/device/Auto.py
+++ b/script/device/Auto.py
@@ -62,6 +62,9 @@ def auto_init():
   global AUTO_THRESH1_COUNT, AUTO_THRESH2_COUNT
   global AUTO_THRESH3_COUNT, AUTO_THRESH4_COUNT
 
+  AUTO_LEVEL = 0; AUTO_RETRY_MAX = 20
+  AUTO_COUNT_TIME = 0
+  AUTO_EXP_LO  =  1; AUTO_EXP_HI = 10  
   # for safety, set the thresh values gigantically high to start with
   AUTO_THRESH1=1e8; AUTO_THRESH2=1e9; AUTO_THRESH3=1e10; AUTO_THRESH4=1e11
 
@@ -116,7 +119,7 @@ def auto_show():
     show the auto-level settings.
     inform the user on the currently active auto-level
     """
-
+    global AUTO_LEVEL
     if (AUTO_LEVEL == 0):
         print("auto-level has been set to %d.\n" % AUTO_LEVEL)
         print("Automatic filter setting is OFF.\n")
@@ -147,6 +150,7 @@ def auto_show_exposure():
     """
      show the auto-level exposure settings.
     """
+    global AUTO_EXP_LO, AUTO_EXP_HI
     print("detector exposure times: short = %d s, long = %d s\n" % (AUTO_EXP_LO,AUTO_EXP_HI))
 
 
@@ -161,8 +165,8 @@ def auto_calc_exposure():
             COUNT_TIME = AUTO_EXP_HI
     return COUNT_TIME
 
-def autoAdjust():
-    # autoAdjust()       - automatically adjusts the filter transmission and
+def auto_adjust():
+    #                   - automatically adjusts the filter transmission and
     #                      exposure time of the currently active detector to obtain
     #                      the best possible signal level.
     #                      The function returns 1 if transmission or exposure
@@ -285,7 +289,7 @@ def auto_adjust_redo():
     # Note: This macro makes use of the 'recount' macro which has been added to
     #       site.mac.
 
-    global AUTO_LEVEL, AUTO_RETRY_MAX, AUTO_COUNT_TIME    
+    global AUTO_LEVEL, AUTO_RETRY_MAX    
     _success = 1
     if (AUTO_LEVEL < 1):
         return(_success)
@@ -294,7 +298,7 @@ def auto_adjust_redo():
     while (redo != 0):
         redo = 0
         retryCount = retryCount+1
-        if (autoAdjust() != 0):
+        if (auto_adjust() != 0):
             if (retryCount <  AUTO_RETRY_MAX):
                 redo = 1
             else: