Emerson Transmitter 350 Mode D’Emploi

The LTM-Series may be strapped to the outside of 

the Magtech LG series magnetic level gage.  In such 

an installation, it is used as an accessory transmitter 

for the visual level gage.  The same float used to 

activate the magnetic gage is also used to activate

the magnetostrictive sensor of the LTM and 

transmit a directly proportional 4/20mA signal.

The depiction below shows the gage mount

installation of the LTM-Series to a mag-gage.  The 

transmitters may be calibrated for the same range 

as the visual indicator on the mag-gage, or for part 

of the range depending on the application.

When a magnetic level gage is not present, the LTM

can be inserted into the tank/vessel with its own 

float mounted around the sensor tube.

The depictions below show the standalone version 

of the LTM-Series with various process connections

and the standard float stop with centering ring.

Figure 3.  Transmitters with various process connections.

In Figure 3: 

Transmitter A depicts a standard ¾” compression 

fitting that is on all standalone transmitters.  

Transmitter B depicts a ¾” compression fitting and 

a hex plug.  This option is highly recommended 

because the hex plug is selected based on the 

float’s diameter (OD), so if the instrument ever 

needs to be removed or serviced for any reason it 

can be removed by the hex plug.  

Transmitter C depicts a flanged option with a ¾” 

compression fitting and a hex plug.

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