Manual Cal - Two-Point Calibration - Step-By-Step - Ametek OXYvisor Installation, Operation & Maintenance Manual

Installation, Operation & Maintenance Manual
OXYvisor Optical Oxygen Analyzer
Step 7. The screen will show "Span Gas O
are now active and will show the oxygen value as it approaches the span gas value. If the sensor is out of
calibration it may not read the precise span gas value.. Once the Phase Angle, Temperature and Pressure
have become stable, press ENTER to Store the calibration.
Note: The values should be steady and not trending up or down.
Phase Angle Stability: +/- 0.1° , Temp = +/- 0.2 °C
Note: The 4-20 mA outputs are held once the calibration screens are entered. They are released
to the process measurement once exiting the calibration screen or after time-out from inactivity.
Step 8. Exit via the Escape Key back to the main measurement window.

5.12.4.3 - Manual Cal - Two-Point Calibration - Step-by-Step

Two-Point Calibration [Factory Recommended] - This is virtually a combination of the Single-Point Zero and Span
Gas calibrations with an additional rule that all steps must be completed successfully to save and use the
calibration.
Step 1. Via the OXYvisor HMI enter the calibration routine Calibration Menu/Basic Setup/Manual O2 Calibration
Step 2. Select the Cal-Temp ON or OFF. If OFF, enter the correct calibration temperature.
Step 3. Follow the Single Point Calibration (Zero Gas), Steps 2 through 6 of section 5.12.4.1
Step 4. Follow the Single Point Calibration (Span Gas), Step 2 then Step 5 through 8 of section 5.12.4.2
5.12.5 - Calibration - Auto O
Auto O Calibration Setup
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To setup the OXYvisor for Auto-Calibration (AutoCal) there are some additional hardware requirements.
• (QTY 3) Low-Watt Solenoid Valves to operate the Auto-calibration panel. One solenoid for the process
isolation valve and two for the calibration gases, zero and span.
• External Power Supply with proper Area Classification to power the solenoids. The OXYvisor has non-
powered on/off digital relays to control the AutoCal routine.
The AutoCal setup can be setup via the HMI, however it is fairly tedious and it is recommended to use the
OXYvisor OxygenAnalyzer software provided with the analyzer to set up this routine. Refer to the OXYvisor
Software Instruction Manual for detailed setup instructions.
Basic Arrangement and Wiring Details for an AutoCal panel with the OXYvisor is shown in Appendix
5.12.6 - Calibration - Temperature Sensor Calibration
Temperature Sensor Calibration
It is normally not necessary to calibrate the temperature sensor. However, if there is an offset the temperature
sensor can be calibrated via a Smart Calibration routine. The routine allows for either a 1-point offset
adjustment or a 2-point offset and slope adjustment.
The analyzer always performs an offset unless a successive calibration is performed with a 15° C differential
from the first and then is automatically adjust the slope. Details of the calibration logic are shown here:
Live Values." The displayed oxygen value (PV) and secondary PV's
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Calibration Setup
2
Calibration
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