Procedure - In-Process Calibration - Emerson Rosemount Analytical HART 5081-A-HT Instruction Manual

MODEL 5081-A
9.4 PROCEDURE — IN-PROCESS CALIBRATION
1. The transmitter and sensor can be calibrated against a standard instrument. For oxygen sensors installed in
aeration basins in waste treatment plants, calibration against a second instrument is often preferred. For an
accurate calibration be sure that:
a. The standard instrument has been zeroed and calibrated against water-saturated air following the manu-
facturer's instructions.
b. The standard sensor is inserted in the liquid as close to the process sensor as possible.
c. Adequate time is allowed for the standard sensor to stabilize before calibrating the process instrument.
CALIBRATE
Sensor Cal
EXIT NEXT ENTER
CALIBRATE
A ir Cal
EXIT NEXT ENTER
CALIBRATE
In ProCess
EXIT ENTER
CALIBRATE
time delay
EXIT NEXT
CALIBRATE
Grab spl
EXIT ENTER
CALIBRATE
Cal
3 . 20
EXIT ENTER
54
2. Press CAL on the remote controller.
3. Press NEXT. The SEnSor CAL submenu appears. Press ENTER.
4. Press NEXT. The Air CAL prompt appears. Press NEXT.
5. The In ProCESS prompt appears. Press ENTER.
6. The tiME dELAy message appears and remains until the sensor read-
ing meets the stability criteria set in Section 7.8. To bypass the time
delay, press ENTER.
7. The GrAb SPL (grab sample) message appears. Press ENTER.
8. Use the arrow keys to change the flashing display to the value indicated
by the standard instrument. Press ENTER to save.
9. Press RESET to return to the main display.
SECTION 9.0
CALIBRATION — OxyGEN