Fluke Fluke-709 Calibrator, 4234350 Data Sheet

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HART Write Enable is the last function in the Calibrator 
Setup Menu. See Figure 18. 

 

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This function is available only on the 709H. It protects the 
Write LRV, Write URV, Device Diagnostic, Trim 4mA, 
Trim 20mA, Set Fixed Output, and PV Zero functions. 
The default setting is ON, but it may be turned off to 
protect the Product against unauthorized use. 

Before the setting is changed, a password is required. 
The password is set to 617 at the factory. The range of 
values that can be set is 000 to 999. See Figure 19. 

The write-enable selection is saved only when the correct 
password is given. Otherwise an error message is shown. 

Push the selection knob to move the decade cursor. Turn 
the selection knob to adjust the value in steps indicated 
by the decade selected. Push and hold the selection knob 
to save the write enable setting. Push  to restore the 
previous HART-enable selection and go to the Main 
screen. 

 

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