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Endura ACA592
Toroidal conductivity transmitter
7.3.2 Calibrate
Menu
Calibrate
Exit
Calibrate Level
Parameter
PV Zero Cal
PV Span Cal
Temperature Cal
Edit PV, Temp Cal
PV Slope
PV Offset
Temp Slope
Temp Offset
Reset PV, Temp Cal
Analog Output Trim
OI/ACA592/TC–EN Rev. B
Used to calibrate the sensor and transmitter.
2
Select
Description
The process value's zero calibration value (reference procedure).
The process value's maximum calibration value (reference procedure).
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.
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.
Edits the PV Slope value as a percentage
Edits the PV Offset value
Edits the Temp Slope value as a percentage
Edits the Temp Slope value
Resets all process sensor and temperature sensor calibration data to default factory
settings.
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.
7 Operator Pages and Menus
53
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