diff --git a/Python_script/almemo2490.py b/Python_script/almemo2490.py
index 853190bb7b518b9cd31158f0147f91035420855e..2b59526a81895ac461c940484aa12c662827334d 100644
--- a/Python_script/almemo2490.py
+++ b/Python_script/almemo2490.py
@@ -20,7 +20,6 @@ import re
 from datetime import datetime
 import pandas as pd
 import numpy as np
-import socket
 import traceback
 from functools import wraps
 
@@ -29,7 +28,8 @@ from functools import wraps
 class err_hdl(Exception):
     
     # function for retry decorate object in case of exception
-    def do_retry(ExceptionToCheck = Exception, tries=4, delay=3, backoff=2, default_response = None):
+    def do_retry(ExceptionToCheck = Exception, tries=4, delay=3, backoff=2, \
+                 default_response = None):
         """Retry calling the decorated function using an backoff and defaults for return
     
         original from: http://wiki.python.org/moin/PythonDecoratorLibrary#Retry
@@ -65,7 +65,6 @@ class err_hdl(Exception):
                 print('maximum number of retries [%d] reached\nfunction: %s\nmodule: %s' \
                       % (tries, function.__name__,function.__module__))
  
-                
                 return default_response
                 
             return function_retry # true decorator
@@ -89,10 +88,10 @@ class err_hdl(Exception):
         """
         def exception_decorator(function):
             
-            def function_handle_exception(self, *args, **kwargs):
+            def function_handle_exception(*args, **kwargs):
                 
                 try:
-                    return function(self, *args, **kwargs)
+                    return function(*args, **kwargs)
                 
                 except ExceptionToCheck as e:
                     
@@ -101,8 +100,9 @@ class err_hdl(Exception):
                     print(traceback.print_tb(e.__traceback__))
     
                     return default_response
-                
-            return function_handle_exception 
+    
+            return function_handle_exception
+        
         return exception_decorator
 
 
@@ -150,7 +150,7 @@ class almemo2490:
     # query function to send a command to almemo 2490 and
     # return the response to the command
  
-    def query(self, cmd_str, wait_time = 0.5):
+    def query(self, cmd_str, wait_time = 1):
         
         # send request to ALMEMO 2490 encode UTF8 with CR
         self.tn.write(bytes(cmd_str, encoding = 'utf8') + b'\r')
@@ -204,7 +204,7 @@ class almemo2490:
        
     
     # method to get actual date from ALMEMO 2490 
-    @err_hdl.do_handle_exceptions(default_response = "01.01.1970")
+    @err_hdl.do_handle_exceptions(default_response = "01.01.70")
     def get_date(self):
         
         # request date from ALMEMO 2490
@@ -235,8 +235,7 @@ class almemo2490:
     # method to set channel name of selected channel at ALMEMO 2490
     # channel name can be at max 10 characters
     # not allowed characters in name are white space charcters and semicolon
-    # channel numbers <= 9: string, format 'x.x' where x has to be within [0-9]
-    # channel numbers > 9: string, format 'x.xx' where x has to be within [0-9] 
+    # numbmer format: 'xy'  where x has to be [0-9] and y has be [0-1]
     @err_hdl.do_handle_exceptions()
     def set_channel_name(self, channel, channel_name):
         
@@ -259,8 +258,7 @@ class almemo2490:
         
         
     # method to get channel name from selected channel at ALMEMO 2490
-    # channel numbers <= 9: string, format 'x.x' where x has to be within [0-9]
-    # channel numbers > 9: string, format 'x.xx' where x has to be within [0-9]
+    # numbmer format: 'xy'  where x has to be [0-9] and y has be [0-1]
     @err_hdl.do_handle_exceptions(default_response = "N/A")
     def get_channel_name(self, channel):
         
@@ -299,9 +297,7 @@ class almemo2490:
         
         # to get fixed parameter (channel number, measurment name, measurment unit),
         # of a channel entry out of the read buffer search patterns are needed to identify them 
-        # pattern for sens_channel: M\x.x or M\x.xx where x within [0-9]
-        # pattern for channel_unit: 1$\xx where x can be every character
-        # pattern for channel_name: 2$\xx where x can be every character without semicolon
+    
         search_patterns = {'sens_channel': r'([0-9]{2})', \
                                'channel_unit': r'( [^ ]{2})', 'channel_name': r'([^ ]+ +\r)'}
         
@@ -472,9 +468,9 @@ class almemo2490:
     def __exit__(self):
         self.close()
     
-    # # destructor of class
-    # def __del__(self):
-    #     # self.close()
+    # destructor of class
+    def __del__(self):
+        self.close()
 
 
 
diff --git a/Python_script/almemo710.py b/Python_script/almemo710.py
index 8a7e00d35bc037a42badc43edb28aa75d9a36f06..70a7ccb36e25a2d0383ee540e5dc4ad590b0e5e1 100644
--- a/Python_script/almemo710.py
+++ b/Python_script/almemo710.py
@@ -20,7 +20,6 @@ import re
 from datetime import datetime
 import pandas as pd
 import numpy as np
-import socket
 import traceback
 from functools import wraps
 
@@ -29,7 +28,8 @@ from functools import wraps
 class err_hdl(Exception):
     
     # function for retry decorate object in case of exception
-    def do_retry(ExceptionToCheck = Exception, tries=4, delay=3, backoff=2, default_response = None):
+    def do_retry(ExceptionToCheck = Exception, tries=4, delay=3, backoff=2, \
+                 default_response = None):
         """Retry calling the decorated function using an backoff and defaults for return
     
         original from: http://wiki.python.org/moin/PythonDecoratorLibrary#Retry
@@ -65,7 +65,6 @@ class err_hdl(Exception):
                 print('maximum number of retries [%d] reached\nfunction: %s\nmodule: %s' \
                       % (tries, function.__name__,function.__module__))
  
-                
                 return default_response
                 
             return function_retry # true decorator
@@ -89,10 +88,10 @@ class err_hdl(Exception):
         """
         def exception_decorator(function):
             
-            def function_handle_exception(self, *args, **kwargs):
+            def function_handle_exception(*args, **kwargs):
                 
                 try:
-                    return function(self, *args, **kwargs)
+                    return function(*args, **kwargs)
                 
                 except ExceptionToCheck as e:
                     
@@ -101,8 +100,9 @@ class err_hdl(Exception):
                     print(traceback.print_tb(e.__traceback__))
     
                     return default_response
-                
-            return function_handle_exception 
+    
+            return function_handle_exception
+        
         return exception_decorator
 
 
@@ -145,12 +145,12 @@ class almemo710:
     
     @err_hdl.do_retry(tries=5, delay=1, backoff=3)
     def open_connection(self):
-        
         return Telnet(self.ip_adress, 10001, self.timeout)
     
     # query function to send a command to almemo 710 and
     # return the response to the command
-    def query(self, cmd_str, wait_time = 0.5):
+    
+    def query(self, cmd_str, wait_time = 1):
         
         # send request to ALMEMO 710 encode UTF8 with CR
         self.tn.write(bytes(cmd_str, encoding = 'utf8') + b'\r')
@@ -165,7 +165,6 @@ class almemo710:
         # decode receivved data with CP437 format
         decoded_read_buffer = read_buffer.decode('cp437')
         
-        
         # return received data
         return decoded_read_buffer
    
@@ -236,8 +235,7 @@ class almemo710:
     # method to set channel name of selected channel at ALMEMO 710
     # channel name can be at max 10 characters
     # not allowed characters in name are white space charcters and semicolon
-    # channel numbers <= 9: string, format 'x.x' where x has to be within [0-9]
-    # channel numbers > 9: string, format 'x.xx' where x has to be within [0-9] 
+    # channel numbers: string, format 'x.x' where x has to be within [0-9]
     @err_hdl.do_handle_exceptions()
     def set_channel_name(self, channel, channel_name):
         
@@ -260,8 +258,7 @@ class almemo710:
         
         
     # method to get channel name from selected channel at ALMEMO 710
-    # channel numbers <= 9: string, format 'x.x' where x has to be within [0-9]
-    # channel numbers > 9: string, format 'x.xx' where x has to be within [0-9] 
+    # channel numbers: string, format 'x.x' where x has to be within [0-9]
     @err_hdl.do_handle_exceptions(default_response = "N/A")
     def get_channel_name(self, channel):
         
@@ -299,7 +296,7 @@ class almemo710:
         
         # to get fixed parameter (channel number, measurment name, measurment unit),
         # of a channel entry out of the read buffer search patterns are needed to identify them 
-        # pattern for sens_channel: M\x.x or M\x.xx where x within [0-9]
+        # pattern for sens_channel: M\x.x where x within [0-9]
         # pattern for channel_unit: 1$\xx where x can be every character
         # pattern for channel_name: 2$\xx where x can be every character without semicolon
         search_patterns = {'sens_channel': r'(M\\[0-9]+\.{1}[0-9]+)', \
diff --git a/Python_script/play_with_almemo2490.py b/Python_script/play_with_almemo2490.py
index 89a54c114da161dd2ac12608da1e7bb6bec72525..fecf80911ac46a7a56d696eebf6807bc6df218d4 100644
--- a/Python_script/play_with_almemo2490.py
+++ b/Python_script/play_with_almemo2490.py
@@ -9,6 +9,8 @@ Created on Mon Jan  2 16:55:57 2023
 import almemo2490
 
 # variables for selection in used methods
+# numbmer format: 'xy'  where x has to be [0-9] and y has be [0-1]
+# x is the measurement channel and y is the sensor port
 sel_channel_no = '10'
 sel_channel_name = 'T,t'
 item = 0
@@ -50,7 +52,7 @@ try:
     
     # fetch parameter of selected measurement channel from meas_buffer of class object
     # input of channel name or channel number is possible
-    # numbmer format: 'x.x' or x.xx when number > 10 where is has to be [0-9]
+    # numbmer format: 'xy'  where x has to be [0-9] and y has be [0-1]
     meas_channel_data, num_matches = almemo2490_obj. \
         fetch_channel_param_from_meas_buffer(pattern = sel_channel_name, index = item)
     
diff --git a/Python_script/play_with_almemo710.py b/Python_script/play_with_almemo710.py
index ce3c0af626eca5f1023f808799793fe8fa4af465..79c88760e86aecfe312adc66d682e804c5aa79f5 100644
--- a/Python_script/play_with_almemo710.py
+++ b/Python_script/play_with_almemo710.py
@@ -9,7 +9,9 @@ Created on Mon Jan  2 16:55:57 2023
 import almemo710
 
 # variables for selection in used methods
-sel_channel_no = '0.0'
+# numbmer format: 'x.y'  where x has to be [0-9] and y has be [0-9]
+# x is the sensor port and y is the measurement channel
+sel_channel_no = '0.1'
 sel_channel_name = 'T,t'
 item = 0
 
@@ -33,8 +35,8 @@ try:
     # set name of measurment channel 0.1 from almemo 710  
     almemo710_obj.set_channel_name(sel_channel_no,sel_channel_name)
     
-    # # request name of measurement channel from almemo 710
-    # channel_name = almemo710_obj.get_channel_name(sel_channel_no)
+    # request name of measurement channel from almemo 710
+    channel_name = almemo710_obj.get_channel_name(sel_channel_no)
         
     # request list of all sensors channels that are currently active
     # store this data in data frame of class_object
@@ -50,7 +52,7 @@ try:
     
     # fetch parameter of selected measurement channel from meas_buffer of class object
     # input of channel name or channel number is possible
-    # numbmer format: 'x.x' or x.xx when number > 10 where is has to be [0-9]
+    # numbmer format: 'x.x' where is has to be [0-9]
     meas_channel_data, num_matches = almemo710_obj. \
         fetch_channel_param_from_meas_buffer(pattern = sel_channel_name, index = item)