- 129 - © 2018 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.MS282 User’s Manual3.21 Lock/Unlock Parameter ScanningThis feature locks parameter settings with a 4-digit code to prevent the userfrom changing parameter values by scanning parameter bar codes. Thisprovides an added level of security not offered via Disable ParameterScanning.To lock parameter scanning:1.Scan the Lock bar code.2.Scan four bar codes from Appendix B, Numeric Bar Codes that represent thedesired code. Enter leading zeros for numbers below 1000, e.g., to programa code of 29, enter 0, 0, 2, 9. A "lock" beep sounds (two long high beeps) inaddition 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 thecorrect code. An "unlock" beep sounds (two long low beeps) in addition tothe parameter entry beep.Entering an incorrect code results in a parameter error beep.Lock Unlock
