Oxygen O2 Analyzer Calibration Procedure

@Pre-Calibration Checks
1. Ensure analyzer is turned off and power cord is unplugged.
2. Verify calibration gases are available (e.g., 0% O2, 20.9% O2, span gas).
3. Check analyzer's operating manual for specific calibration requirements.
FAISAL AHMED
Calibration Steps:
@ZeroCalibration (0% O2):
1. Connect 0% O2 calibration gas cylinder to #analyzer's #calibration port.
2. Turn on analyzer and allow it to stabilize.
3. Adjust zero potentiometer to read 0% O2 on display.
4. Verify reading stability (±0.1% O2).
Span Calibration (20.9% O2 or Span Gas):
1. Connect 20.9% O2 (or span gas) cylinder to calibration port.
2. Adjust span potentiometer to read correct O2 concentration on display.
3. Verify reading stability (±0.1% O2).
Linearity Check (Optional):
1. Connect calibration #gases with different #O2 concentrations (e.g., 5%, 10%, 15%).
2. Record analyzer readings and verify linearity.
#oxygen
Calibration Verification:
1. Reconnect calibration gases (0% and 20.9% O2) to verify calibration.
2. Record analyzer readings to ensure accuracy.
Post-Calibration:
1. Turn off analyzer and disconnect calibration gases.
2. Record calibration results, date, and technician's signature.
3. Update analyzer's calibration log.
Frequency of Calibration:
Typically every 1-3 months, depending on analyzer type, usage, and environmental conditions.
After maintenance, repair, or replacement of analyzer components.
Analyzer-Specific Considerations:
Handle calibration gases carefully, following safety guidelines.
Ensure proper ventilation and avoid gas leaks. #Lonotoxt300
Asghar Ali
LONOT OXT 3000-HD Oxygen analyzer Calibration
Arrange oxygen gas Cylinder 0.4% for zero calibration.
Arrange oxygen gas cylinder 400 or 8.00% for Span Calibration.
place Control Loop in manual
Verify the Calibration gas parameters are correct Per, Calibration with keypad.
Go to maintain state code 0000 Constant Down nay Slope High gas Low gas Range Main Hold Fault out ON ₂O Correct" Cell Resistance 652
and Calibration single and Double Calibration Inpute gas 8.00%
CELL Blink mv 30~38 Input gas 0.4%
CELL Blink mV 80 ~88. Purge
After valid Calibration place Conttrol loop in automatic.
Parameters
1- Temperature = 740℃
2- Cell Resistance = 65 ohm
3- Range = 21%
4- High gas = 4.00 0% 8.00% oxygen
S- Low gas = 0.4% oxygem

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