Palmer Circular Chart Recorders are durable, fully mechanical units with a low maintenance design. The heavy aluminum, die cast and powder coated cases are all-welded construction to prevent deterioration, and available in 8 inch and 12 inch chart sizes.
Available with up to 2 pens, all temperature systems feature 300 Series stainless steel bulb and interconnection capillary, with available armor. Choose between Mercury, Hydrocarbon, and Non-Toxic filled temperature systems.* View temperature recorder bulb options.
Choose from our four available case mounting styles: wall, flush, pipestand, or portable.
Our circular chart recorders are built with weatherproof construction, including a heavy lockable door with weatherstripping, with or without a window. Designed for outdoor use, the rugged design withstands high levels of vibration and includes one-half inch screened air vent holes in the case, adjustable door pull latch with available locking hasp, all stainless steel corrosion resistant internals, and micro-adjustable wire linkage.
Choose from a variety of recorder drives to configure your recorder. Our most popular option is the PC-11 C-Cell battery powered, intrinsically safe eleven speed motor with speeds of 60 minutes, 96 minutes, 12 hours, 24 hours, 48 hours, 7 days, 8 days, 14 days, 16 days, 31 days or 32 days. Our PC-12 C-Cell battery powered, intrinsically safe twelve speed motor offers speeds of 30 minutes, 60 minutes, 2 hours, 4 hours, 6 hours, 8 hours, 12 hours, 24 hours, 3 days, 4 days, and 7 days. Spring wound drives with standard rotation of 24 hours / 7 days are available. Electric chart drives are available with a 7 day or 12 hour rotation.
Palmer Chart recorders use disposable fine point felt tipped pens in red, green, and blue. Black and purple pens are available. We offer standard and specialty charts to meet the needs of your application.
All Palmer Circular Chart Recorders are built to order in our Asheville, NC factory.