SenTech IR-SNIF MCD | Multi Channel Refrigerant Leak Detector

IR SNIF MCD Sentech Refrigerant Gas Leak Monitor

The SenTech IR-SNIF MCD - 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 self-contained 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.

DOWNLOAD PDF DATA SHEET

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 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
Industrial process cooling
Sports arenas
Agricultural process and storage

Critical 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 specifications it is important that the unit is calibrated to the manufacturer's recommendations or per Australian Standards and Regulations.