1656 & 1657 Battery Element Tester Owner’s Manual
STS Instruments Page 41 of 88
5.9 Password Information
To place the instrument in LOCAL mode after the LOCK key has been pushed, the user will be
prompted to a password. This four digit password prevents unauthorized access to setups and
calibration functions.
Only authorized personal should be given this password information.
The password for a given unit consists of the last four digits of the serial number that can be
seen in the System screen. (See previous section).