Hydran* M2-X Instruction Manual 
 
MA-029  Rev. 1.0,  30-Jul-18 
 
European Economic Community 
Software to control micro-controller based machines or 
devices with fixed hardware, such as Hydran M2-X. 
Application is specific to the operation of the device. 
Electro-Magnetic Interference 
Deviation of a measurement from its expected value 
Menu that gives access to all operation parameters and 
commands (including those of the Main Menu) of the 
Hydran M2-X 
Federal Communications Commission 
First In, First Out (type of memory) 
Gas concentration measured by device 
This include Short Term, Long Term, Events and Service data 
that are stored in the Hydran M2-X’s memory 
Computer connected remotely to a Hydran M2-X or a 
network of Hydran M2-X’s  
Variation during a time period (hours) 
Refer to one of the Hydran 201 family of controllers: Hydran 
201Ci-C, 201Ci-1 or 201Ci-4. 
One-channel controller and display designed to supervise 
one Hydran 201Ti unit 
Four-channel controller and display designed to supervise 
up to four Hydran 201Ti units. 
Communications controller designed to supervise up to four 
Hydran 201Ti units 
System comprising of a Hydran 201Ti unit together with a 
Hydran 201Ci Controller