Check Scale connect status before acquiring lock

[arpal7]

Description of changes: Fix scale non immediate timeout when there is not scale

Description of testing: Tested on non scale register with weighted item - Timeout happened immediately - PASS Please make sure the following changes have been made before creating a pull request.

Update Description

• [x] Change tested on actual device
• [ ] Changes tested for simulator
• [x] Existing device functionality is working fine
• [x] Unit Tests Written for Code Changes, and Verified that Coverage is 100% for Modified Files(with the exception of ATM devices)

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

---

arnab seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}