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Analytical Technology Dissolved Ammonia Monitor, Q45N

Q45N Dissolved Ammonia Monitor

Brand: Analytical Technology Inc
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Analytical Technology Dissolved Ammonia Monitor, Q45N
The Q45N Dissolved Ammonia Monitor uses reaction chemistry that converts ammonia in solution to a stable monochloramine compound equivalent in concentration to the original ammonia level. 

The chloramine concentration is then measured with a unique amperometric sensor that responds linearly to chloramines while eliminating interference from excess free chlorine in solution. 

Q45N monitors are available in two versions, one that includes all components conveniently integrated into a Nema 4X fiberglass enclosure, and a second that separates the 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 insure the desired response time for the measurement system. 

Excess sample is bypassed to any convenient drain location.

Specifications

Brand

Measurement

  • Total Ammonia (as NH₃ - N)

Optional

  • Free Ammonia (as NH₃) and Monochloramine

Sensor Type

  • Amperometric Membraned Cell

Range

  • Ammonia: 0-2.000 ppm minimum, 0-20.00 ppm Max.
  • Monochloramine: 0-10.00 ppm

Response Time

  • 90 % in 120 Seconds

Accuracy

  • ± 0.1 ppm or 2 % of Full Scale

Sensitivity

  • 0.05 ppm Min.

Zero Stability

  • ± 0.02 ppm Per Week

Electronic Linearity

  • ± 0.5 %

Span Drift

  • Generally Less Than 5 % per Month (Application Dependent)

Zero Drift

  • ± 0.03 ppm

Analog Output

  • Two Isolated 4-20 mA, 575 ohms Max.

Power

  • 115 or 230 Vac, 50/60 Hz, 5 VA max

Alarm Relays

  • Two SPDT, 5 A @ 230 Vac Resistive

Relay Coil

  • Programmable Either Normally Energized or Normally De-Energized

Enclosure

  • NEMA 4X Fiberglass, Wall Mount

Controls

  • 4 Membrane Switches on Front of Monitor.

Operating Temperature

  • 0° to +40° C

Sample Inlet

  • 1/2" FNPT

Sample Drain

  • 1/2" FNPT

Recommended Sample Flow

  • 0.1-0.5 GPM (0.4 - 2.0 LPM)

Size

  • 15.2" H x 13.W x 7.1" D (386 x 335 x 180 mm)

Weight

  • 17 lb (7.7 kg)

  • Wastewater Treatment 
  • Potable Water Treatment 
  • River and Stream Water Quality 
  • Refrigeration Chillers

Documentation

Data Sheets

Product Manuals

Outline Drawings

Specifications

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