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Help CenterShanghai Dahua Medium Circular Chart Recorder Xwfj - 301, Medium Circular Chart Recording Paper, Linear 5728 - 1, 0 - 1200
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Shanghai Dahua Medium Circular Chart Recorder XWFJ-301 Medium Circular Chart Recording Paper Linear 5728-1 0-1200
Packaging: 100 sheets per pack Range: 0-1200 Linear Origin: China
Delivery time: In stock
Of the linear circular chart recording paper
I. Core definition
The linear circular chart recording paper is a commonly used recording medium in industrial process monitoring. It is mainly used in circular chart automatic balancing recorders (such as XQG and XWB series) to record the linear changes of parameters such as temperature, pressure, and flow in a circular trajectory. Its core design is: The radial direction (from the center of the circle outward) represents the measured value (such as the temperature range of 0-150℃), and the circumferential direction (around the center of the circle for one week) represents time (such as a 24-hour recording cycle). Through the movement of the recording pen on the paper surface, the continuous parameter changes are transformed into a visual curve, realizing the long-term retention and traceability of data.
II. Main uses
The linear circular chart recording paper is widely used in industrial scenarios that require continuous monitoring and recording of process parameters. Typical industries include:
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Heat treatment and metallurgy: Used for temperature monitoring of industrial furnaces (such as annealing furnaces and quenching furnaces), recording the temperature changes during the heating, heat preservation, and cooling processes to ensure the quality of workpiece heat treatment (such as stress relief and improvement of mechanical properties);
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Chemical and energy: Used for pressure and temperature monitoring of pipelines and reaction kettles to prevent safety accidents such as overheating and leakage;
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Food and pharmaceutical
General Industry: Suitable for various equipment that requires continuous parameter recording (such as drying ovens and constant temperature ovens), providing data support for process optimization and quality traceability.
III. Key Features
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Specification Compatibility:
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Size: The common diameter of medium circular charts is 216mm (compatible with XQG series recorders), 262mm (domestic XWB series), and the diameter of large circular charts can reach 300mm;
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Graduation number: Supports multiple sensor types (such as Pt100 thermal resistors, K-type thermocouples), and can be customized according to the measurement range (such as 0 - 100℃, 0 - 150℃);
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Packaging: Usually 100 sheets per pack or 500 sheets per box to meet the needs of batch use.
Recording Performance:
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Recording cycle: Mostly 24 hours (replace once a day), and some models support 7 days or longer;
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Accuracy: The basic recording error is ≤±1%. When used with high-precision recorders (such as the XQG series), accurate parameter tracking can be achieved;
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Material: It uses special paper that is high-temperature resistant, corrosion-resistant, and anti-static, adapting to dust, oil, and temperature fluctuations in the industrial environment to ensure clear and long-lasting recording curves.
Function expansion:
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Multi-channel compatibility: Some recording papers support dual-channel recording (e.g., temperature + pressure). Through two-color markings or additional scale areas, multi-parameter synchronous monitoring can be achieved.
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Customized service: The graduation number, measurement range can be adjusted or special markings (such as alarm threshold lines) can be added according to user needs to meet personalized requirements.
4. Relationship with the circular chart recorder
The linear circular chart recording paper is the core consumable of the circular chart recorder. The two work together to achieve visual recording of data. The working principle of the circular chart recorder is as follows:
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Sensors (such as Pt100 thermal resistors) collect parameter signals and convert them into electrical signals.
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The internal amplification and A/D conversion circuits of the recorder process the signals and drive the recording pen to move on the circular chart recording paper.
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The recording paper is fixed on the recorder's rotating shaft through the central square hole. As time passes (circumferential direction) and parameters change (radial direction), a continuous curve is formed.
5. Selection and usage suggestions
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Model Matching:
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Select the corresponding graduation number according to the sensor type (e.g., Pt100 corresponds to model 21665, and K-type thermocouple corresponds to other models);
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Select the recording paper according to the measurement range (e.g., select 21665 for 0 - 100℃, and select 21666 for 0 - 150℃).
Supporting Equipment:
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It is recommended to use the paper that matches the original recorder (e.g., the XQG series is compatible with recording paper 21665/21666) to avoid compatibility issues;
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Match with the original recording pen (e.g., the TYB series of marking pens) to ensure the clarity of the recording.
Operation Specifications:
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Ensure that the central square hole of the recording paper is aligned with the instrument's rotating shaft during installation to avoid deviation during rotation;
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After the recording is completed, mark the date, equipment number, and operator information, and store it in a dry and dark environment for easy traceability of historical data.
Summary
Linear circular chart recording paper is an important tool for industrial process monitoring. Through its design of circular trajectory and linear scale, it realizes the continuous recording and visualization of parameters. It is widely used in industries such as heat treatment, chemical engineering, and food, providing reliable data support for process control, quality traceability, and equipment management. During the selection and use process, attention should be paid to model matching, supporting equipment, and operating specifications to ensure the accuracy and durability of the recorded data. For details, please contact Guangzhou Lvtuke Instrument & Meter Co., Ltd. In-stock supply
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