Analytical Technology Total Chlorine Monitor, Q45H/79C
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Q45H/79C Total Chlorine Monitor

Brand: Analytical Technology Inc
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The Q45H-79C Total Chlorine Monitor uses standard EPA approved iodometric chemistry where, by addition of buffer and potassium iodide, the various chlorine compounds in solution react to form iodine. 

The iodine released in this reaction is measured using a highly sensitive amperometric sensor capable of 1 PPB sensitivity. 

The output of this sensor is linear with respect to concentration and provides fast response for both upscale and downscale concentration changes. 

Q45H-79C Total Chlorine monitors (analyzers, transmitters) are available in two versions, one that includes all components conveniently integrated into a NEMA 4X fiberglass enclosure, and a second that separates the chlorine monitor from the chemistry system for applications where a more convenient display location is desired. 

A sample inlet filter assembly attached to the side of the enclosure allows filtered sample to be drawn from the inlet flow. 

Sample must be pumped to the inlet assembly at a rate high enough to ensure the desired response time for the measurement system. 

Excess sample is bypassed to any convenient drain location.
Features
  • Sensing: Measurement is made with a direct reading membraned amperometric iodine sensor.
  • Standard Method: Total chlorine is measured using EPA recommended method for reaction of sample with buffer and potassium iodide, and measurement of iodine released in the reaction.
  • High Accuracy, High Sensitivity: Measures from 0.001 PPM to 20.00 PPM
  • Large Alphanumeric LCD Display: Provides total residual chlorine display, alarm status and all configuration information.
  • Control Relays: Two 6-amp relays programmable for control or alarm function.
  • Isolated Outputs: Two assignable 4-20 mA outputs configured to track residual chlorine, temperature or assigned to PID control.
  • Selectable PID Controller: PID includes manual operation feature and diagnostic feature for relay notification of control problems.

Specifications

Brand

Display Range

  • 0-200 PPB or 0-2.000, 0-20.00 ppm

Accuracy

  • ± 0.01 ppm or 0.5 % of F.S.

Repeatability

  • ± 0.01 ppm or 0.5 % of F.S.

Linearity

  • 0.1 % of F.S.

Zero Drift

  • < 0.01 ppm Per Month

Display

  • Large 4 Digit LCD Main Display, 0.75” Characters, 12-Digit Alphanumeric Second Line Display

Power

  • 115/230 Vac, 50/60 Hz, 10 VA

Control Relays

  • Two SPDT Relays, 6A @ 250 Vac 5A @ 24 Vdc, Resistive

Relay Mode

  • Programmable for Control or Alarm Function

Analog Outputs

  • Two Isolated 4-20 mA, 550 Ohms Max. Load, Assignable

Operating Conditions

  • -20-60° C, 0-95 % R.H. Non-Condensing (Does Not Apply to Chemistry Module)

Enclosure

  • NEMA 4X (IP-66) Wall or Panel Mount

Documentation

Outline Drawings

Specifications

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