Hydran* M2-X Installation Guide 
 
MA-028  Rev. 2.1,  11-Jun-20 
 
2  GENERAL CAUTIONS & WARNINGS 
Turn off the electric power at the fuse box or service 
panel  before  making  any  electrical  connections, 
and  ensure  a  proper  ground  connection  is  made 
before connecting line voltage.  Failure to do so can 
result in property damage, personal injury and/or 
death.  
Mishandling of the Hydran M2-X sensor (such as a 
perforation or scratch on the membrane or 
subjecting the sensor to paint or solvent) voids the 
warranty. 
It is recommended to read all warnings and 
considerations given in Chapter 1 and 2 of the 
Hydran M2-X Instruction Manual before proceeding 
with the installation. 
Hazardous location (HazLoc) certification pertains to units with part number M2-
X-HZ only. The Hydran M2-X carrying the “HZ” designation is certified for use in 
hazardous locations as identified by the branding on the product casing including the 
serial number label as shown in Figure 1 and Figure 2. Once a HazLoc product is in 
location, do not: 
•  open the internal case 
•  service the battery 
•  remove the battery 
•  or perform servicing on any other 
parts. 
 
Figure 1: Certified for Hazardous Locations