Learn more about chart recorders
Typical Uses of Chart Recorders
Chart recorders are a familiar sight in manufacturing plants, where they track such variables as temperature, pressure, flow, pH, and humidity. Laboratories, meanwhile, use them to monitor scientific and engineering data generated in testing, diagnostics, statistical analysis, and other work requiring a graphic record.
When Should I Use a Chart Recorder?
When the process to be tracked involves limited variables that do not require a PC-based interface, paper and pen can still be the way to go. The advantage of a circular chart is its intuitiveness: at a glance, it gives a complete history of each selected variable over a specified period—a truly continuous display of a trend’s change with time.
Frequently Asked Questions
How to Select a Chart Recorder?
Many applications are suitable and require the installation of a chart recorders. Before choosing one, make sure you consider the following questions:
- How many inputs need to be recorded?
- What types of inputs need to be recorded?
- Do different input types need to be recorded in the same unit?
- What type of recording is required?
- Multiplex scanning (what minimum scan cycle is required?)
- Is a communciation interface required?
- Is recorder to be bench style or panel mounting?
- What type of instrument power is available?
- Is log-type recording desirable instead of/in addition to trend recording?
- Is color differentiation available for trend lines?
- Is message printing required?
- Is the recorder to perform alarm functions?
- How many setpoints per channel?
- What types of alarms: threshold, rate delta?
- Are physical relay contacts available for external alarm output?