Commissioning Deltabar FMD71, FMD72
42 Endress+Hauser
9 Commissioning
NOTICE
If a pressure smaller than the minimum permitted pressure or greater than the
maximum permitted pressure is present at the device, the following messages are
output in succession:
‣
"S140 Working range P LP/HP" or "F140 Working range P LP/HP" (depending on the
setting in the "Alarm behav. P" (050) parameter)
‣
"S841 Sensor range LP/HP" or "F841 Sensor range LP/HP" (depending on the setting in
the "Alarm behav. P" (050) parameter)
‣
"S945/F945 Pressure limit LP"
‣
"S971 Calibration"
9.1 Post-installation check and function check
Before commissioning your measuring point, ensure that the post-installation and post-
connection check have been performed:
• "Post-installation check" checklist→ 23
• "Post-connection check" checklist→ 29
9.2 Unlocking/locking configuration
If the device is locked to prevent configuration, it must first be unlocked.
9.2.1 Locking/unlocking hardware
If the device is locked via the hardware (write protection switch) and an attempt is made to
write to a parameter, the message "HW lock state is ON" appears.
In addition, the key symbol appears in the measured value display. To unlock, toggle the
write protection switch, which is located below the display module → 30.
9.2.2 Locking/unlocking software
If the device is locked via the software (device access code), the key symbol appears in the
measured value display. If an attempt is made to write to a parameter, a prompt for the
device access code appears. To unlock, enter the user-defined device access code → 37.
9.3 Commissioning without an operating menu
9.3.1 Pressure measuring mode
If no local display is connected, the following functions are possible via the three keys on
the electronic insert or externally on the device:
• Position adjustment (zero point correction)
• Setting lower range value and upper range value
• To reset the device, see "Function of the operating elements" section, table → 31.
• The pressure applied must be within the nominal pressure limits of the respective
sensor module. See information on the nameplate.
• Operation must be unlocked, see "Unlocking/locking configuration" section → 42.
• The device is configured for the "Level" measuring mode as standard. The measuring
mode can be changed using the "Measuring mode" parameter, see "Commissioning
with an operating menu" section → 45.
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