Specifications

A/D CONVERTERS

• Opto 22 SNAP I/O controllers:
  • 16 bits per sample
  • 20,000 levels of resolution, 0.005% maximum quantization error (when used with 4-20 mA field inputs)
  • Pluggable modules available which support a variety of analog signal standards, with and without optical isolation between inputs
  • Ethernet
    • 300-foot maximum distance between PC and controller (can be extended using Ethernet switches)
  • Serial
    • Interfaces to PC serial port with RS-485 to RS-232 converter at 38,400 bits/second (Optomux) or 115,200 bits/second (mistic)
    • 4000-foot maximum distance between PC and ADC
• B&B Electronics 232SDA12
  • 12 bits per sample
  • 3276 levels of resolution, 0.031% maximum quantization error (when used with 4-20 mA or 1-5 V field inputs)
  • Interfaces to PC serial port via. RS-232C cable at 9600 bits/second
  • Eleven non-isolated 0-5 V field inputs (convertible from 4-20 mA - see AquaServ Administrator's Guide)
  • 50-foot maximum distance between PC and ADC (using shielded cable)
  • Ideal for temporary or portable AquaServ deployments

TEMPORAL ACCURACY

• Effective A/D converter polling interval: 0.1 seconds (0.5 seconds if using the B&B 232SDA12)
• Real-time totalizers updated every 100 ms
• On-screen chart updated every 5 seconds
• Data stored to disk every 5-1800 seconds (configurable)
• Temporal resolution depends on horizontal resolution of screen and printer:
  • 113 seconds on a 1024-pixel-wide display
  • 90 seconds on a 1280-pixel-wide display
  • 35 seconds on a 300 DPI printer
  • 17 seconds on a 600 DPI printer

MEASUREMENT UNITS SUPPORTED

• Millions of Gallons per Day (MGD) *
• Gallons Per Day (GPD) *
• Gallons Per Minute (GPM) *
• Cubic Feet per Second (CFS) *
• Gallons
• Feet
• Degrees Fahrenheit
• Millions of Liters per Day (MLD) *
• Liters Per Day (LPD) *
• Liters Per Minute (LPM) *
• Cubic Meters per Second (CMS) *
• Liters
• Meters
• Degrees Celcius
• Pulses per Second (PPS) *
• Pulses per Minute (PPM) *
• Milligrams per Liter (mg/L)
• NTU
• Pounds per Square Inch (PSI)
• pH
• Other *

(* = totalizer active. For "Other", the totalizer counts in items per second.)

If you encounter any problems with this site or would like to suggest improvements, please contact the webmaster.
Contents of this site are Copyright © AquaSoft. All Rights Reserved.