2.3 Gage Mounted Transmitter

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.

Figure 2. Gage mounted transmitter

Magtech transmitters may also be used in conjunction with other manufacturers’ magnetic level gages. Full warranties will apply upon factory approval. Float and or Indicator replacement may be required.

2.4 Standalone Transmitter

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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Emerson 250, 350 operation manual Gage Mounted Transmitter, Standalone Transmitter

350, 250 specifications

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