
MIDAS
®
Features:
• Over 35 gases available with
extended 2 year warranty*
• Smart sensor cartridge with on
board ‘e-calibration’ certificate
• 3 built in relays (Form C) for
Alarm 1, 2 and Fault
• Power over Ethernet (PoE)
communication
• Keypad Interface and remote
Web Browser Interface
• Pyrolyzer module that
connects to any transmitter
• Password protected
menu levels to preserve
system integrity
• Bright LEDs and intuitive
Icon Driven, large backlit
LCD display
• Factory-calibrated sensors
to reduce need for frequent
gas testing
• Isolated 0-22 mA Analog
Output with fault and
event reporting
• Modbus/TCP Ethernet for
easy connectivity to all control
and alarm systems ports for
control connectivity and
service interaction
• Robust extractive pump system
(2 year lifetime) sampling
up to 30m
• CE marked for total immunity to
Radio Frequency Interference
• Reflex® sensor health check for
improved safety
• TempraSureTM temperature
compensation technology
as appropriate
• Event logging to review
sensor history
MIDAS offers lower cost of ownership
benefits for gas detection through a
combination of extended sensor calibration
periods, flexible communications
architecture and patented diagnostics
that monitor sensor performance and
flow control.
MIDAS is a universal transmitter platform
that detects the majority of toxic, ambient
and flammable gases that must be
monitored in the Fab. Bright LED lights
and an intuitive, icon driven interactive
menu guarantee instant alert to the gas
reading or alarm level coupled with
password protected menus for
configuration, test and calibration.
MIDAS is compact in size and its easy
access metal chassis design makes it
simple to install in crowded, increasingly
complex process environments or retro fit
applications where space is at a premium.
MIDAS will monitor points up to 100 feet
(30 meters) away from the transmitter and
flow rates are regulated automatically
using patented control technology to
ensure error free gas sensing operation.
Honeywell designs and manufactures its
own sensors using advanced robotics to
ensure unbeatable quality and reliability.
MIDAS is complemented by the innovative
Chemcassette
low ppb toxic gas detection analyzers and
our worldwide network of service
engineers who operate on a 24/7 basis.
®
range of ultra sensitive
* standard 1 year warranty

Flexible Features
and Options
MIDAS Transmitter
With a number of exible features and options, MIDAS
works right out of the box and congures easily to meet
your needs. The pre-calibrated ‘plug-and-play’ smart
sensor cartridge means the instrument will be ready to
commission when you’re ready, thus saving sensor life.
It makes sensor replacement quick and easy to manage
with no tools required, and prevents any operator error
associated with using incorrect or depleted sensors.
MIDAS has exible power and communications built in as
standard including 3 on-board relays, 0 - 22mA analog
output, Modbus/TCP Ethernet digital outputs, as well as
the innovative Power over Ethernet (PoE) protocol — a
single Ethernet connection for all power, control and
communication requirements. Cost effective integration
with PLC and Fieldbus systems is greatly simplied with the
MIDAS architecture.
MIDAS Cartridge Detectable Gases
Gas Name Chemical Formula
Ammonia NH
Arsine AsH
Boron Trichloride BCl
Boron Trifluoride BF
Bromine Br2
Carbon Dioxide CO2
Carbon Monoxide CO
Chlorine Cl
Chlorine Dioxide ClO2
Diborane B2H6
Dichlorosilane H2SiCl2
Difluoromethane* CH2F2
Disilane Si2H6
Fluorine F2
Germane GeH4
Hexaflourobutadiene* C4F6
Hydrogen (% LEL) H2
Hydrogen (ppm) H2
Hydrogen Bromide HBr
Hydrogen Chloride HCl
Hydrogen Cyanide HCN
Hydrogen Fluoride HF
Hydrogen Sulfide H
Methane (% LEL) CH
Methyl Flouride* CH3F
Nitric Oxide NO
Nitrogen Dioxide NO
Nitrogen Trifluoride* NF3
Octoflourocyclopentene
Oxygen
O2
Ozone O3
Phosphine PH3
Silane SiH4
Sulfur Dioxide SO2
Sulfur Hexaflouride* SF6
Tetra Ethyl Ortho Silicate TEOS
Tungsten Hexafluoride WF
* Gases require MIDAS Pyrolyzer
* C5F8
3
3
3
3
2
2S
4
2
6
MIDAS Pyrolyzer
Offered as an option, the MIDAS Pyrolyzer allows for
the detection of NF3 and other CFX gases, and provides
a number of benets. Cost of ownership is low as the
pyrolyzer has a replaceable heater assembly with a lifespan
of greater than two years. The pyrolyzer design uses
our new proprietary catalyst to improve gas conversion
efciency, which along with automatic ow control and
temperature control, gives fast and accurate performance.
Additionally, the pyrolyzer can be run from a MIDAS
powered by either PoE or 24 VDC.
MIDAS Installation
Alarm System used with MIDAS
MIDAS & MIDAS Pyrolyzer

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Please Note:
While every effort has been made to ensure accuracy in this publication, no responsibility can be accepted for errors or omissions.
Data may change, as well as legislation, and you are strongly advised to obtain copies of the most recently issued regulations,
standards, and guidelines. This publication is not intended to form the basis of a contract.
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