B20 Residual Chlorine Recorder

Brand: Analytical Technology Inc

Providing permanent chlorine residual records normally means purchasing a residual chlorine water quality monitor and connecting the output of the monitor to a separate recorder. 

ATI’s B20 provides an integrated solution to this problem, combining both the analyzer and recorder functions in a single package. 

This means simpler installation, easier operation, and lower cost. 

And best of all, the system uses our direct measuring membraned sensor for reliable measurement with minimal maintenance.

Series B20 chlorine recorders use the same reliable chlorine sensor supplied for years as part of our Series A15 monitoring systems. 

The sensor is a direct measuring polarographic membraned sensor that eliminates the need for chemical buffers and other reagents. 

Sensors are available for free chlorine measurements or for combined chlorine monitoring where chloramine treatment is in use. 

Chlorine sensors require a constant sample flow past the membrane to provide stable and accurate readings. 

B20 systems are supplied with a constant-head flowcell assembly that automatically maintains the desired flow. 

Hose barbs for sample inlet and drain provide for connection of flexible PVC tubing.
Features
  • Free or combined chlorine recording
  • Selectable 24-hour or 7-day chart
  • Modular sensor for easy service
  • Digital concentration display
  • NEMA 3 wall or panel mount enclosure
  • Replaceable felt tip chart pens
  • Direct measuring chlorine sensor
  • No chemical reagents required
  • Simple constant-head flowcell
  • Two alarm standard

Specifications

Range

  • 0-1 to 0-5 ppm or 0-5 to 0-20 ppm

Flowcell

  • Constant Head Overflow Type

Chart

  • 10” with 0-100 % 24-Hour Scale, Package of 100

Flowcell Materials

  • Clear Acrylic, Stainless Plate

Chart Speed

  • Selectable for 24-Hour or 7-Day

Inlet

  • 1/4” I.D. Tubing Hose Barb (1/8” FNPT)

Display

  • Digital Concentration Display

Drain

  • 1/2” I.D. Tubing Hose Barb (3/8” FNPT)

Accuracy

  • ± 0.05 ppm

Sample Flowrate

  • 15 GPH (7 GPH Min.)

Repeatability

  • ± 0.02 ppm

Sample Temperature

  • 0° - 50° C

Response Time

  • 90 % in 60 Seconds

Power

  • 120 or 240 Vac, 50/60 Hz

Enclosure

  • NEMA 3 Noryl, Acrylic Window

Recorder Size

  • 14”W x 14”H x 6”D

Flowcell Size

  • 4.5”W x 7”H x 3.5”D

Sensor

  • Polarographic Membraned Type

Alarms

  • Two Programmable Alarms

Alarm Relays

  • Two SPDT, 5A @ 120 Vac Resistive

Sensor Materials

  • Noryl and Stainless Steel

Sensor Cable

  • 25 Feet Standard, 100 Feet Max.

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