Omega DP26-RTD, User Manual

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2.5 FRONT PANEL LOCKOUT
2.5.1 PUSH BUTTON LOCKOUT
To lock the RESET , MENU and SETPTS buttons, verify that the S3-A jumper is
installed and the S3-E jumper is not installed, then follow these steps:
In the run mode-
1. Press and hold down the RESET button. The meter shows “SP.RS” . Do not
release the RESET button.
2. Press the MENU button and hold RESET button down (3-5 seconds) until the
meter shows “LOCK” .
3. Release both buttons.
To unlock the RESET , MENU and SETPTS buttons, follow these steps:
1. Press and hold down the RESET button. The meter shows “LOCK” . Do not
release the RESET button.
2. Press the MENU button and hold RESET button down (3-5 seconds) until the
meter shows “UN.LK” .
3. Release both buttons.
2.5.2 JUMPER LOCKOUT
To lock all front panel buttons, remove the S3-A jumper (refer to Figure 3-2).
To lock the MENU button only, verify that the S3-B jumper is removed, then install
the S3-A and S3-E jumpers, (refer to Table 3-1).
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