Specifications, Applications,
Service Instructions & Parts
GAS DETECTORS,
CONTROLLER
& ALERT SYSTEMS
Bulletin A100h
JANUARY 2020
For Refrigerants and
other Common Gases
Gas Detector
INTRODUCTION
Hansen Technologies offers a complete line of industrial
quality Gas Detector, Controller and Alert Systems for
refrigerants and other common gases. These state-of-
the-art gas detection products utilize a range of sensing
technologies to suit a given application. Available in
several configurations to meet various application
requirements with optimum accuracy and reliability.
APPLICATIONS
Hansen Gas Detectors are suitable for use in industrial
refrigeration engine rooms, cold storage rooms,
processing rooms, truck docks, and for relief valve vent
lines. They are also suitable for use in supermarkets,
and large institutional and commercial buildings.
Typical gas detection applications include Ammonia,
Carbon Dioxide (CO
2
), Hydrocarbons, HFCs, HCFCs
and CFCs.
ADVANTAGES
Hansen uses a variety of sensor element technologies
including electrochemical, semiconductor and infrared
sensors to selectively detect most gases. These sensor
elements continuously determine the level of gas present
in the surrounding environment. The analog outputs (4-
20mA or 0-10V DC) can interface with nearly any existing
monitor, computer or PLC controller.
The sensor elements are mounted internally on the
enclosure. This helps to provide quick response to
potential leaks, particularly in still air. Electronics are
sealed in a IP66 enclosure which protects them from
moisture, dust and the surrounding gases, which in the
case of ammonia can shorten the life of electronics. The
sensing elements are easily replaced.
Gas Detectors have built-in visual and audible alarms.
High level, low level and fault IA, SPDT relay outputs
are standard. Testing and recalibration procedures
are simple.
KEY FEATURES–REMOTE GAS DETECTORS
• Accurate, fast responding
• Linear 4-20mA or 0-10V DC output
• Audible alarm
• Power indicator
• SPDT alarm relays (Fail Safe Operation)
• 24V AC/DC low voltage power
• Shipped factory calibrated and tested
• CE approved
• CSA (Electrical Features Only)
KEY FEATURES–GAS DETECTION
CONTROLLER
• Visual alarm
• Audible alarm
• Power indicator
• Low level alarm relay
• High level alarm relay
• Fault relay
• Economical
• CE approved
KEY FEATURES−GAS ALERT SYSTEM
• Provides local display and alarm based on
measured target gas level via gas sensor
• Visual alarm, Amber LED light
• Audible alarm (mutable)
• Power indicator, Green
• Numeric PPM reading
• Bright LED Display
• Shipped factory calibrated and tested
