Reference Guide

User Preferences & Miscellaneous Options 1 - 7
Lock/Unlock Parameter Scanning
Lock: SSI # F2h 22h
Unlock: SSI # F2h 23h
Lock: Parameter # 802
Unlock: Parameter # 803
This feature locks parameter settings with a 4-digit code to prevent the user from changing parameter values
by scanning parameter bar codes. This provides an added level of security not offered via Disable Parameter
Scanning.
After locking parameter settings, the only parameter bar code that is accepted is Unlock with the correct code.
NOTE Parameter Scanning must be enabled in order to scan the Lock parameter bar code. Once
parameter scanning is locked, scanning the Enable or Disable Parameter Scanning bar code results
in a parameter error beep.
To lock parameter scanning:
1. Scan the Lock bar code.
2. Scan four bar codes from Appendix B, Numeric Bar Codes that represent the desired code. Enter leading
zeros for numbers below 1000, e.g., to program a code of 29, enter 0, 0, 2, 9. A lock beep sounds (two
long high beeps) in addition to the parameter entry beep.
To unlock parameter scanning:
1. Scan the Unlock bar code.
2. Scan four bar codes from Appendix B, Numeric Bar Codes that represent the correct code. An unlock
beep sounds (two long low beeps) in addition to the parameter entry beep. Entering an incorrect code
results in a parameter error beep.
Lock
Unlock
NOTE Parameter values can be changed via host interface commands even when parameter scanning is locked.