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Endura ACA592
Toroidal conductivity transmitter
7 Operator Pages and Menus
OI/ACA592/TC–EN Rev. B
53
7.3.2 Calibrate
Used to calibrate the sensor and transmitter.
Calibrate Level
Parameter
Description
PV Zero Cal
The process value's zero calibration value (reference procedure).
PV Span Cal
The process value's maximum calibration value (reference procedure).
Temperature Cal
The temperature calibration is used to calibrate the temperature input from the sensor
against a standard known reading – see Table 7.2, page 54.
A 2-point temperature calibration is performed using this routine by calibrating, in
succession, at a low temperature value and a high temperature value (the two values
separated by at least 20 °C [68 °F]).
This results in both temperature slope and offset computation.
Edit PV, Temp Cal
Enables manual adjustment of the sensor PV slope and offset and sensor temperature slope
and offset.
Note
. This function may not be suitable for many applications, but it provides quick, easy
access to these calibration values for troubleshooting.
PV Slope
Edits the
PV Slope
value as a percentage
PV Offset
Edits the
PV Offset
value
Temp Slope
Edits the
Temp Slope
value as a percentage
Temp Offset
Edits the
Temp Slope
value
Reset PV, Temp Cal
Resets all process sensor and temperature sensor calibration data to default factory
settings.
Analog Output Trim
Adjusts the maximum / minimum output signals (4 to 20 mA, ±0.5 mA) to maintain precise
transmission of the process variable to the final monitoring system.
The transmitter's output current is factory calibrated; however, the output can be trimmed if
required.
Note
. Enabled when
HART Poll Addr
=
0
– see page 61.
Not applicable to HART multidrop mode where current output is not used.
2
Menu
Exit
Select
Calibrate