Quality, American Made Drilling Instrumentation.

Circular Chart Recorders

Crown Oilfield Instrumentation's 12'' circular chart recorders are durable, and lasting. They have proven to be dependable in all configurations, and with high accuracy.

Available with:

Pressure Recorder
  • Truck or portable configurations.
  • Various clock options.
  • A number of pressure ranges.
  • Duel pen recorders for recording two pressure inputs at the same time.

Our Circular Chart Recorders Feature:

  • Comes in Truck Mount or Portable variations
  • 1 or 2 pen versions available
  • Can be calibrated for use up to 15000 p.s.i.
  • Extremely accurate to less than 1% margin error
  • English and Metric versions available
  • Gauges can be built into base (upon request)
  • 1 box of charts
  • 1 quart of Crown Oilfield Instrumentation all-weather Instrument Fluid
  • High pressure hoses
  • Disconnects
  • Rubber cup type diaphragm protector (optional)
  • 1:1 piston isolator
  • Sensors with 2'' 1502 type wing nut


  • Ability to stock one line of recorder charts and expendables.
  • Easily replaceable with no modifications to mounting boxes.
  • 6'' fluid-filled gauge in portable model.

To Order Specify:

  • Pressure range or capacity to be recorded
  • Portable or truck mount
  • Amount of pens required
  • English or Metric version
  • Whether or not gauges are required in base.
  • Sensor requirements
  • Hose requirements