Endress+Hauser Waterpilot FMX21, Operating Instructions Manual

Page: 119 / 144

Waterpilot FMX21 Description of device parameters
Hauser 119
14.16 Expert → Application
Electr. Delta P
Write permission Operators/Service engineers/Expert
Description For switching the Electr. Delta P application off or on with an external or constant value.
Options • Off
• External value
• Constant
Factory setting Off
Fixed ext. value
Write permission Operators/Service engineers/Expert
Description Use this function to enter the constant value. The value refers to "HART input unit"
Factory setting 0.0
Auto dens. corr.
Write permission Operators/Service engineers/Expert
Description For switching the auto dens. corr. application off or on with an external or internal
temperature value.
Before performing a calibration (dry or wet), auto-density compensation must be switched
on if this function is to be used. As soon as "Auto dens. corr." is switched on, the field for
entering the "Process density" and "Adjust density" is disabled.
The calibration density remains the last value until it is overwritten by a calibration. The
process density remains the last value until it is overwritten when the system recalculates
the value.
Automatic density compensation is performed for the 0 to 70 °C (32 to 158 °F)
temperature range. The density values for water are used for this density compensation.
Prerequisite Level mode
Options • Off
• Sensor temperature
• External value (only if Off or Constant is selected for Electr. Delta P)
Factory setting • Off
• On (if the option "IC" was selected in the "Service" order code when ordering)