Circular Recorder Chart & Pens

Circular recorder charts and ink pens are essential consumables for process recorder instruments used across industrial environments. Designed as direct replacements, these charts and pens maintain accurate, continuous records of process variables including temperature, pressure, and flow rate over time.

Compatibility

These charts and pens are compatible with standard circular process recorder instruments commonly used in oil and gas, chemical processing, food and beverage, HVAC, and utilities industries. Always verify the chart diameter and rotation period against your specific recorder model before ordering.

Chart Sizes

Charts are available in two standard diameters to suit different recorder models:

• 100mm diameter — compact format for smaller bench-top or panel-mounted recorders.
• 250mm diameter — larger format for high-resolution recording and easier readability in field installations.

Rotation Periods

Charts are available in three rotation periods to match your monitoring interval requirements:

• 1-day — ideal for processes requiring high-frequency data capture and daily chart changes.
• 7-day — suited for weekly monitoring cycles, reducing chart change frequency.
• 31-day — designed for long-term continuous monitoring with minimal maintenance intervention.

Ink Pen Colors

Replacement ink pens are available in three colors, enabling multi-channel recorders to distinguish between different process variables on a single chart:

• Red — commonly used for temperature traces.
• Blue — typically assigned to pressure or secondary process channels.
• Green — used for flow or tertiary measurement channels.

Paper Materials

Charts are manufactured from two paper materials to suit different environmental conditions:

• Cellulose — standard paper charts suitable for typical indoor industrial environments.
• Polyester — moisture- and chemical-resistant charts for harsh or humid environments where paper degradation is a concern.

Temperature Ranges

Charts are printed with graduated scales to cover two standard temperature ranges:

• 0–200°C — for lower-temperature process monitoring applications.
• 0–400°C — for higher-temperature industrial processes such as furnace or boiler monitoring.

Typical Applications

Circular recorder charts and pens are widely used across process industries for continuous monitoring and compliance record-keeping, including:

• Temperature monitoring in ovens, furnaces, autoclaves, and cold storage.
• Pressure recording in pipelines, vessels, and compressed air systems.
• Flow rate measurement in water treatment, chemical dosing, and utility metering.