What are the calibration preparations for the handheld DMAC digital detector
Date: 2025-11-06Read: 20
The calibration preparation of handheld DMAC digital display detector needs to be focused onEnvironmental condition control, equipment preheating, preparation of standard substances, equipment cleaning and inspection, operator trainingSpecifically, as follows: -
Environmental condition control：
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temperatureThe calibration environment temperature should be controlled between 5 ℃ and 40 ℃, and some high-precision equipment may require a stricter temperature range (such as 20 ℃± 5 ℃) to avoid the influence of temperature fluctuations on measurement results.
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humidityThe relative humidity should be below 60% RH to prevent condensation inside the equipment or moisture in the circuit.
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cleanlinessThe calibration environment should be kept clean to avoid interference from dust, particulate matter, etc. during measurement.
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Equipment preheating：
- After turning on, let the device run steadily for 30 minutes to 1 hour to achieve thermal equilibrium of sensors, electronic components, etc., ensuring the stability of measurement results.
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Preparation of standard materials：
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standard solutionPrepare a DMAC standard solution of known concentration for calibrating the measurement accuracy of the equipment. The concentration of the standard solution should cover the range of the equipment and be distributed as evenly as possible.
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pure waterUsed for cleaning equipment sample slots and zeroing operations.
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Equipment cleaning and inspection：
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Clean the sample tankClean the sample tank with pure water and wipe it clean with a tissue or soft cloth to ensure no residue.
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Check the equipment statusCheck whether the appearance of the equipment is intact, whether the components are firmly connected, and whether the display screen is displaying normally.
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Operator training：
- Ensure that operators are familiar with the operation process and calibration methods of the equipment, able to correctly perform calibration steps and handle possible abnormal situations.