SPMS Questionnaire

This is a list of the type questions we need answered when inquiring about or ordering the Smart Power Measuring Sensor. These questions are also available on a downloadable PDF File which is in form format so you can type in the answers and E-mail the PDF file back to SRT at sales@srt-inc.com.

• What kind of power systems do you need to monitor?
  Please note the voltage and current range
  • 3 phase wye
  • 3 phase delta
  • Split residential
  • Maximum insulated wire size
  • Frequency if not 60Hz
• What do you need to measure?
  • RMS voltage
  • RMS current
  • Waveforms
  • Harmonic voltage
  • Harmonic current
  • Power
  • Peak demand
  • Real power
  • Power factor
  • Reactive power
  • Distortion power
  • Transients
  • History
  • Energy (kWh)
• How often would you like to sample?
  • Every few seconds
  • Every few minutes
  • Hourly
  • Daily
  • Weekly
  • Monthly
• The smart sensor must send its results to a computer
  What computer do you have in mind?
  • Apple Macintosh
  • Intel/Microsoft PC
  • Workstation
  • Mainframe
  • Other
• What software would you feel comfortable with?
  • Spreadsheets (MS Excel)
  • Database (MS Access)
  • SCADA
  • PEGASUS
  • Other
• Do you have in-house programming capability?
  • Motorola 68HC11 assembler
  • C or C++
  • Visual Basic
  • FORTRAN
  • Labview
  • Other
• What operating system do you use?
  • Mac OS
  • MS Windows
  • LINUX
  • UNIX
  • Other
• What control functions are you thinking about?
  • Automatic shut-downs
  • Programmed start-ups
  • Control of peak demand
  • Control of power factor
  • Identify failing equipment
  • Energy management system
  • Power quality study
• What do you plan to do with the data measured?
  • Print it out and file it
  • Put it in a database
  • Control other things
  • Meet U.S. Code Title 10 requirements
  • Display it continuously for viewing
  • Prepare power bills
  • Suggest changes in distribution of loads
  • Identify problems with power as delivered
• For voltages higher than 480 wye or 277 delta smart sensors require power on the data bus.
  • Will you need bus power?
• How big is your proposed installation?
  • How many sensors?
• Smart sensors are connected in parallel on a two wire bus.
  • Bus length from host to computer