CENSAR Technologies Training

1
CENSAR TechnologiesTraining

• Roy Moore
• Censar Technologies, Inc.
• October 2007

2
Training Overview

• Why Monitor for WQ?
• What is it and how does it work? (Technology
  Overview)
• Each system has a different personality!
• You want to put that WHERE?! (Site Selection)
• Installation Inquiries
• How do I do that? (Maintenance Matters)
• Simple CENSE-ware (Software procedures)
• Say what?? (FAQ)
• Finishing Touches

3
Why Monitor for Water Quality?

• Driving Forces Behind Dascore
• Homeland Security
• Bioterrorism Act and Vulnerability Assessments
• Monitoring Regulations
• Greater Understanding of Systems

4
What is it and how does it work?

• CENSAR Technology
• (Chemical ENvironment Sensor ARray)
• Six-CENSE Overview
• Multi-Parameter
• Robust System
• Reagent Free
• Membrane Free
• IP 66 and IP 68 units
• Capable of operating under high pressure
• Remote locations can be monitored
• Easy installation

5
Temperature and REDOX

• Temperature
• Range 0 50 oC
• Located inside the probe head
• Very sensitive to indicate slow, small trends
• REDOX
• Range -1.4 1.4 V
• Tracks Free Chlorine in a system
• Provides a secondary indication for chlorine in a
  system

6
pH and Conductivity

• pH
• Range 2-12 pH units
• Metal Oxide Sensor
• No Glass
• Conductivity
• Range 0.1 10.0 mS/cm
• Standard 4 point ac method
• Temperature Compensated

7
Chlorine, Monochloramine and Dissolved Oxygen

• Chlorine (Free chlorine)
• Measures both HOCl and OCl- simultaneously to
  give more accurate measure and few interferences
• Gold Microlines (5 microns)
• Range 0-5 mg/L
• Monochloramine
• Measures only monochloramine (0-20 mg/L)
• Does not respond to organic chloramine compounds
• Does not measure di- or tri- chloramine compounds
• Dissolved Oxygen
• Range 0-20 mg/L
• Signal can have a damping feature

8
Whats That??

• Getting to know the different parts of your
  Six-CENSE sensor
• Probe head
• Chip
• Reference Electrode
• Contact Pins
• Bayonet Clip and O-rings
• Shaft
• BSPT-NPT Conversion Fitting
• Shaft Seal Housing
• Pressure Fitting/Sample Port
• Shaft Seal Collar
• Electronics Housing
• 31 Pin Connector
• Calibration Cable Connector

9
Personality Perky or Peked?

• Each Distribution System is Unique
• Treatment Processes
• Treatment Chemicals
• System Hydraulics
• Source water variations
• Seasonal Variations
• Daily Usage Variations
• How can the Six-CENSE technology work for you?

10
You Want to put that WHERE?!

• Physical Locations
• High Risk areas
• Large storage locations
• Practicality of the location

11

• Direct Insertion Installations
• Pipe size and thickness
• Valves, pumps and bends in the pipe
• Pressure

• Side Stream Installations
• Recycled or run to waste?
• Pressure considerations
• Flow dynamics

12

• General Installation Concerns and Questions
• Treatment techniques
• Corrosion Control (Zinc orthophosphate or
  cathodic protection)
• Free chlorine or monochlormaine
• Physical Considerations
• Inside/outside? Exposed to possible vandalism?
• Changes in flow? No flow? Reverse Flow?
• Reliable power?

13
Additional Options

• Datalogger
• Memory Card
• Battery Pack

14
Installation Inquiries

• Check the corp. stop and valve clearance
• Measure the insertion depth
• Tightening the collar
• BSPT-NPT fitting
• Sterilization and Preparing the chip for use
• Bleed off pressure
• Attach safety chains

15
How do I do that?

• Preparing a New Chip for Service
• Fill calibration cell with 250 ml water
• Place the probe end in the cal. cell
• Apply power to the unit
• Without removing from water, add power pills
• Tighten the fitting and attach the sample hose
• Graph the pH and Cl data
• Power down the unit when pH values are stable

16
Replacement of Reference Electrode

• Tools Needed
• Needle nose pliers
• Flat head screwdriver
• Silicone grease
• Remove old electrode
• !! Be careful not to drop the wire end into the
  probe
• Insert new electrode and firmly press into place

17
Simple CENSE-ware

• Logging
• Trend graphs
• Saving files
• Calibration

18
Finishing Touches

• Any Questions?