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MSA Chillgard NH3 Gas Monitor
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The Chillgard NH3 Monitor employs electrochemical sensors, which generate a representative output signal that is proportional to the calibrated operating range.
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MSA Chillgard NH3 Gas Monitor

The MSA Chillgard NH3 Gas Monitor uses reliable, electrochemical sensing technology to detect parts-per-million (ppm) levels of ammonia. World-class design and engineering offer a singleboard design for ultimate reliability and serviceability in an economical package.

View: MSA Chillgard NH3 Gas Monitor Datasheet

Applications
The Chillgard NH3 Gas Monitor is part of the MSA family of Chillgard products designed to monitor for the loss of refrigerant gases in a variety of applications:
  • Mechanical equipment rooms
  • Propellant-filling operations
  • Solvent-cleaning stations
  • Cold storage and transport facilities
  • Meat packing plants
  • Supermarkets and refrigerant storage locations
  • Other specialty applications using halocarbons

The full-scale range of the unit is 0-1000 ppm with the capability of measuring a leak as low as 10 ppm, well below the established threshold limit values for ammonia. The Chillgard NH3 Gas Monitor provides fast, reliable detection for low-level leaks of ammonia, thus preventing a major loss of gas. The unit’s standard 4-20mA output can be connected directly to any existing Building Automation System (BAS) or other controller to provide indication of
a leak prior to a worker entering the room. Additionally, with the integral display and status LEDs, workers can have a visual indication of the ammonia
level in their work area.

Features
  • Internal heater option - For operation down to -40˚C
  • Fast Response - The electrochemical sensor is located directly under the calibration cap, providing fast response to ammonia leaks
  • Water- and corrosion-resistant NEMA 4X enclosure
  • Interchangeable Smart Sensors - Pre-calibrated sensor modules are ready for installation out of the box. Sensors can be replaced in the field without the use of tools
  • State-of-the-art display - Liquid crystal display (LCD) conveniently alternates between sensor reading and gas type and features scrolling messaging, indicating ongoing diagnostic checks such as sensor "end-of-life" condition
  • Onboard LEDs and relays - Optional "quick-check" LEDs and four relay outputs allow for increased indication of alarm and fault conditions. Quickcheck LEDs, viewable from a far, indicate NORMAL (green) and ALERT (red) status conditions
     
Installation and Operation
Installation is both simple and flexible. The Chillgard NH3 Gas Monitor:
  • Operates in diffusion mode, with factory-calibrated sensors ready to perform immediately after installation
  • Can operate completely stand-alone with a large LCD display, optional quickcheck LEDs and four relay outputs (three alarm and one fault), or connected with a standard 4-20mA output to a control system (PLC, DCS, etc)
  • Has adjustable full-scale range
  • Provides for easy installations with the two-piece, field-wiring connectors

Calibration
As with all gas monitors, Chillgard NH3 Gas Monitors must be calibrated periodically with the gas of interest to ensure proper operation. The calibration process offers:
  • Easy-to-follow calibration instructions displayed on monitor
  • Automatic adjustments
  • Date stamping
  • Selectable lockout of output signal during calibration
  • Ability to calibrate at the installation location, or remotely without systems interruptions (using another base unit)
  • No need to open the enclosure during set-up and calibration when using accessory calibrator or controller

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About HSE SAFETY

Founded in 1994, Accurate Instruments (NZ) Ltd with its HSE Safety division is one of the few 100% New Zealand owned and operated safety companies in New Zealand today. This is in a market dominated by larger foreign owned companies, yet we continue to operate as a strong independent supplier to the New Zealand market.

We specialize in the supply of safety equipment and safety systems to protect workers and their workplaces.

 

CONTACT US

 0800 500 380
192 Marua Road
Ellerslie
Auckland

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