Delta NANOTRACE DF-745 Instruction Manual download pdf (Page 62)

58 DF-745 User Interface

If the Active Zero Offset feature is turned off, the User Zero Offset value will appear in its’

place in the Check/Adjust Zero menu. The previous user Zero Offset value (if any) will

reappear and immediately be applied to the live display readings. Likewise, if the Active

Zero Offset feature is on, then its’ value (if any) will appear and immediately be applied to

the live readings.

7.4.10.2 Test Relays

Figure 59: Test Relays Menu

Figure 60: Test Alarm Relays Screen

The Test Relays screen, as shown in Figure 60, is used to assure that the relay outputs are

functioning properly. When the Test Relays screen is selected, the NEXT key is used to

move to the number field where the arrow keys ( and ) are used to choose the

appropriate relay number. The NEXT key is then used to move to the Activate/Deactivate

field where the arrow keys ( and ) are used to toggle between the two options. The

NEXT key is then used to move to the Apply field where the Enter key is hit to change the

relay state. This process can be repeated as often as needed. When done, the NEXT key is

used to move to the Done field and the Enter key is hit to leave the screen. The condition

of the relays before the test is restored when the test is concluded. See the section on relay

ports found on page 33 for additional information.

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Delta NANOTRACE DF-745 Instruction Manual Page 62