RFC15-52 Recording Temperature

This instrument is a recorder with a two switch control mechanism which provides automatic temperature programming by use of a pre-cut plastic cam. It is used when two temperatures separated by not more than 5% of scale range are specified as control points. The instrument contains two internally-mounted three-wire thermostatic relays. Wall mounted (brackets furnished) or flush mounts. CSA listed.
RFC15-52 Recording Temperature
Quick Specification:
  • A one pen, 10" circular chart, temperature programming, recording controller with two switches, providing dual on-off control for heat-cool applications.
  • A cam-follower rides on pre-cut plastic cams, providing a setpoint that changes with time.
  • Available with 12, 24, or 48 hour, or 7 day rotation times for 125VAC, 60 Hz operation.
  • Seventeen operating ranges covering -30ºF to 1100ºF.
  • Can be panel or surface mounted.
Read more for Mechanical Limits
  • Standard Features
  • Key Specifications
  • Industry/Application
  • Manual
Overview / Design Principle:
This instrument is a recorder with a two switch control mechanism which provides automatic temperature programming by use of a pre-cut plastic cam. It is used when two temperatures separated by not more than 5% of scale range are specified as control points. The instrument contains two internally-mounted three-wire thermostatic relays. Wall mounted (brackets furnished) or flush mounts. CSA listed.
Operation:
Control point of the RFC15-52 is determined by a cam-follower which rides the edge of a revolving pre-cut cam and postiions the snap-acting switches in accordance with the program for which the cam is shaped. Cam is configured and fabricated by end user.

Switches are actuated by the same termperature-responsive mechanism which moves the recording pen, operating at preselected points in relation to the center line of the cam follower roller.

First switch to be actuated on a temperature rise is the leaf-type #15 if normal sensitivity. Second is a super-sensitive #52 pin type, actuated only when the recorded temperature exceeds the operating point of the first switch.
Standard Features
Chart Diameter: 10"
Chart Marking: Felt Tip Cartridge.
Chart Drive: Electric with toggle switch, or spring wound.
Chart Rotation Periods: 24 and 48 hour, 7 day, other options.
Flush Mount Cutout: 13-1/2" W x 12-11/16" H
Surface Mounting: Mounting brackets included
Electrical Hookup: Terminal block accessible with cover open.
Conduit Openings: One 7/8" diameter hole on each side of the case for 1/2" conduit fitting; drill guide hole spotted in the rear of the case showing optional rear opening location.
Switch Specifications: #15 and #52 combination only.
#15 SPDT, normal sensitivity (1% of element range).
#52 SPDT, super sensitive (1/2% or element range).
Electrical Ratings: 6 amps at 125 VAC, inductive or non-inductive load (through 2 pole thermostatic relay contacts).
Throttling Span: Adjustable from 7 to 35% of element range.
Rated Accuracy: 1% of element range.
Physical Characteristics
Dimensions: 15-1/8" W x 13-3/16" H x 4-7/8" D
Approx. Net Weight: 9 lbs
Approx. Ship Weight: 14 lbs
Ratings / Agency Approvals
CSA
Warranty
1 year
  • Basic recording capability for diverse industrial heat and cooling applications
  • Mobile Refridgeration
 
5672 Bolsa Avenue Huntington Beach, CA 92649 - USA - Ph (714) 622-2000 - Fax (714) 622-2001