52
Service Manual Signum 
Error Codes
Display  Cause  Solution
Inf 74  Function is blocked (e.g., menu is locked)  None
Inf 98  No weighing platform connected  Connect weighing platform
Inf 99  No weighing platform connected  Connect weighing platform
NO WP  No weighing platform connected  Connect weighing platform
In addition to standard tools, you will need the following special tools and 
programs to work on Signum series scales
Designation  Order No.
-  Sartorius Service Software (H8S)  6740-88 
with USB dongle 
*)
-  Sartorius Service Software (H8S)  6740-89 
with LPT dongle 
*)
 
  *)
 Registration in ISSS required