Operation | Radar Tank Gauge |
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5.3.2Unlocking of configuration mode
If an attempt is made to change parameters when the instrument is locked, the user is automatically requested to unlock the instrument:
"unlock parameter" (0A4):
By entering the unlock parameter (on the display or via communication)
100 = for HART devices
the 7500 RTG is released for operation.
Hardware lock:
After pressing the Oand Sand Fkeys at the same time, the user is asked to enter the unlock parameter
⇒
– + E
100 = for HART devices.
⇓
Oand Sand Fpress simultaneous
⇓
Please enter unlock code and confirm with F.
Caution!
Changing certain parameters such as all sensor characteristics, for example, influences numerous functions of the entire measuring system, particularly measuring accuracy. There is no need to change these parameters under normal circumstances and consequently, they are protected by a special code known only to the Varec service organization. Please contact Varec if you have any questions.
38 | Installation and Operations Manual |
