KELCO E30, Installation & Programming Manual

4

4)  Never expose the E30 to static or dynamic pressures greater than 
20 Bars, 290 psi. 

5)  Do not install the E30 in a section of pipe that is subject to vibration.  
Vibration will cause premature failure of the electronic components 
within the controller.

6) 

Never install the E30 in the suction pipe of the pump or in any 

location where it may be subject to partial vacuum conditions.

LOCATION

Install the E30 in a location that is sheltered from direct exposure to the weather. 
The E30 is weatherproof and is supplied with a protective cover. However, to 
ensure a long reliable life from the E30 we recommend it be protected from direct 
exposure to the weather wherever possible.  Intense sun light will eventually 
cause degradation of the pressure switch’s enclosure and in extreme cases may 
cause overheating of the electronics inside the E30.  It is therefore advisable to  
protect the E30 from the weather whenever possible.

The E30 can be wall mounted using the wall mounting bracket kit supplied with 
each unit or it can be installed directly onto pipework.  The location of the tapping 
point is important.  The E30 responds to positive pressures only.  It should never 
be installed in pipework that is subject to partial vacuum (negative pressures).  Do 
not install the E30 in the suction pipework of a pump. The tapping point should be 
in a location that  is away from valves, elbows and concentric reducers.  The E30 
can be installed in either horizontal or vertical pipework.  Flow direction has no 
impact on the performance of the pressure switch.  Install the E30’s tapping point 
in a section of pipe that typi

fi

 es the pipework in the general system. If water 

hammer is a potential issue in the system’s pipework, wall mount the E30 and run 
a length of small diameter capillary tube between the tapping point and the E30.  
Coil the capillary tube so the tube acts as a snubber and absorbs the pressure 
shock from the water hammer.

The E30 will read the line pressure at its tapping point.  Consideration should be 
given to the layout of the pipework and its effect on the reading accuracy.  If the 
system is subject to dynamic pressure, that is, pressure generated as a function 
of 

fl

 uid movement within the pipe system, then the location of the tapping point 

will effect the E30’s ability to read the pressure in a sensible manner.  If the pipe 
system is only subject to static pressure, that is, pressure that may 

fl

 uctuate but 

is from essentially stationary liquid within the system, then the tapping point is 
unimportant as pressure within such a closed system will be uniform at all points.