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SenTech IR-SNIF-MCD

IR SNIF MCD Sentech Refrigerant Gas Leak Monitor

Multiple Channel Refrigerant Loss Monitors

The Environmental System IR-SNIF Multiple Channel Detection (MCD) monitors by SenTech are “Early Warning” loss detection monitoring systems designed specifically for refrigerants.

The IR-SNIF-MCD models are cost effective, self-contained active air-draw sampling systems that offer highly reliable Infrared based performance with the flexibility to satisfy a wide range of continuous monitoring applications. SenTech’s monitors utilise NDIR (Non-dispersive infrared) and pyroelectric (absorptive sensing) technology featuring multi-zone detection point capability from a single field-programmable selfcontained metal enclosure that features SenTech’s unique built-in leak wait period that minimises nuisance false alarms.

SenTech's IR-SNIF-MCD multiple channel architecture combines Infrared detection of refrigerants available in single, four, eight and sixteen zone models with remote sensing capabilities for other gasses. With the featured Infrared technology, each zone is capable of monitoring and responding to any one of 22 refrigerants from a standard library via keypad entry at concentration levels as low as one part per million (PPM).

A unique four remote transmitter configuration allows the IR-SNIF-MCD to be a combined gas monitor that senses refrigerants AND any additional gases by remote sensors, such as Ammonia, Carbon Monoxide, Carbon Dioxide, Hydrogen, Oxygen and more. SenTech’s IR-SNIF-MCD monitors also provide compliance with ASHRAE Standard 15.

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Features of the Sentech IR-SNIF-MCD Refrigerant Monitor include:

  • Infrared sensor technology
  • Active air draw sampling system
  • Multiple zones (1, 4, 8, 16 zones)
  • Sampling distance of 250 ft (500 ft coverage)
  • Detects all halogen based refrigerants and blends
  • Multiple channel architecture allows combined multiple gas detection configurations
  • Factory calibrated-/-automatic electronic re-zeroing w/fresh air occurs after every air sample has been tested-/-No field calibration required for Infrared sensor
  • Four line digital display w/ keypad for programming and operation
  • Visual indication of alarm levels and system malfunction
  • Three alarm levels (Four 5 amp contacts per relay)
  • Separate programmable horn alarm relay
  • 0-10 vdc analog output · Setup function password protected
  • Keypad access password protected to prevent tampering
  • ETL listing pending – will conform to UL STD 3101-1 and CAN/CSA No. 1010.1
  • Compliance with ASHRAE Standard 15
  • Factory Mutual (FM) approval pending 

Optional features of the IR-SNIF-MCD

  • Optional Nema 4 enclosure with keyed lock
  • Optional 4-20 ma analog output
  • Optional individual zone alarm output to indicate alarm in each zone
  • Optional four channel analog input for multiple channel detection operation
  • Optional serial data output (RS 485 or RS 232)
  • Optional remote control interface
  • Optional Halon 1301/FM 200 fire suppression agent detection

Applications

Suitable applications for the Sentech Refrigeration Leak Monitors are:

Comfort Air Application Examples:

  • Office Buildings
  • Hospitals
  • Schools and Universities
  • Factories
  • Government facilities

Refrigeration Application Examples:

  • Supermarkets
  • Refrigerated warehousing
  • Industiral process cooling
  • Sports arenas
  • Agricultural process and storage

Critiacal Environment Examples:

  • Corporate data centres
  • Telecom switching facilities
  • Process control rooms
  • Industrial robotic systems
  • Medical diagnostic complexes
  • Clean rooms

SNIF MCD Specifications

Sensitivity As low as 1PPM
Weight 14.4 kgs
Dimensions 42cm x 38.1cm x 17cm
Power Requirements 120/240 Volt 50/60 Hz
Range 0 to 1000 PPM
Alarm Trip Points
Low Alarm 0 to 100% of Full Scale
Main Alarm 0 to 100% of Full Scale
High Alarm 0 to 100% of Full Scale
Operating Environment Range
0°c - 50°c
Alarm Outputs
Indicator Light
Alarm Relays with 4 Form C contacts (5 amps maximum)
RS485 or RS232 computer interface

SNIF MCD Models & Accessories

IR-SNIF-MCD Models

IR-SNIF-MCD-1   1 Zone, 3 Alarm levels

IR-SNIF-MCD-4   4 Zone, 3 Alarm levels

IR-SNIF-MCD-8   8 Zone, 3 Alarm levels 

IR-SNIF-MCD-16 16 Zone, 3 Alarm levels

IR-SNIF-MCD Custom Configurations

IR-SNIF-MCD Accessories

  • Remote PPM indicator w/audible silent switch
  • Remote transmitters: Carbon Monoxide, Oxygen, etc
  • Strobe light, Horn, Combination strobe/horn
  • Air-sampling pickup tubing
  • Calibrated test gas kit

Calibration

To ensure your refrigerant monitor is working according to speficiations it is important that the unit is calibrated to manufacturer's recommendations or per Australian Standards and Regulations.

    contact us   for information and pricing on the Sentech Refrigerant Leak Detector Calibrations.


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