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All Categories > By Primary Gas to be Measured > Chlorine Analyzers (Cl2) > Wall-mounted Air Monitors > Continuous Chlorine Alarm Monitors - 541 Series > Item # Model 541DR  


Item # Model 541DR, Model 541DR, Chlorine Alarm Monitor, with remote sensor(s), Wall Mounted

The Nova 541 Series chlorine alarm monitors are designed for the continuous detection of Cl2 in ambient air. The Cl2 sensor is capable of excursions over 100 PPM with no damage. The Cl2 sensor is a disposable electrochemical type with an expected life of between 3-4 years. The sensor needs no warm-up time and is ready to go as soon as the monitor is turned on. Several versions are available as shown below.

The 'DR' models are configured such that the chlorine sensor(s) are mounted outside of, and electrically connected to, the main cabinet (max distance between remote sensor & main cabinet - 50ft). This allows allows Cl2 monitoring of single or multiple remote zones, with centralized display and alarming features. The remote sensors are the diffusion type, with no pump or moving parts.

Optional dual level alarm with local indication, relay contacts, and audible alert available. Alarm set points are pre-set at Nova but are field adjustable if desired. Flashing strobe light and upgraded cabinets also available.



Models:

  • 541DR1 - Control cabinet with one remote diffusion sensor
  • 541DR2 - Control cabinet with two remote diffusion sensors
  • 541DR3 - Control cabinet with three remote diffusion sensors
  • 541DR4 - Control cabinet with four remote diffusion sensors





Specifications  · Applications  · Features  · Options  · Calibration  · Unique Applications

Specifications

Method of Detection
PPM Cl2 by electrochemical sensor

Ranges Available
0-20 PPM Cl2

Resolution
1 PPM

Accuracy & Repeatability
Better than 1% of full scale or 1 PPM, whichever is higher

Drift
Less than 1% of full scale or 2 PPM per week, whichever is greater

Response Time (T-90)
Less than 60 seconds to 90% step change

Ambient Temperature Range
40 to 104°F (4 to 40°C)

Linearity
± 1% of full scale or 1 PPM, whichever is higher

Size & Weight
20" H x 16" W x 10" D @ 20lbs. (51 x 41 x 26 cm @ 10kg)

Power
115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options
4-20mA non-isolated

Alarms
Optional - Dual high CL2 alarm light and relays (SPDT - 5A@ 230 VAC)

Area Rating
General Purpose Non-Hazardous only


Applications
Designed for the continuous monitoring of chlorine (Cl2) in ambient air at water treatment plants, chlorine production plants, commercial swimming pools, or any area in which chlorine is handled or stored.


Features
  • Electrochemical Cl2 cell
  • Fast response to the presence of chlorine in the air
  • Instant warm-up, no wait
  • Touchcreen digital readout
  • Easy use and calibrate
  • Easy-to-maintain modular layout
  • 4-20mA non-isolated output
  • NEMA 12 dust-tight enclosure


Options
  • Alarm with on-screen indication, relay contact, and audible alarm with acknowledge button
  • Strobe light for alarm indication
  • NEMA 4 weather-proof enclosure
  • 'DR' models with remote O2 sensors


Calibration
  • On chlorine-free air or nitrogen for Zero
  • On analyzed calibration gas of Cl2 in air for Span


Unique Applications
All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova at 1-800-295-3771. In many cases, we are able to build an analyzer specific to your needs.



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