Instruction Manual

Instruction Manual

D103434X012

Installation

November 2014

Figure 2‐2. Sensor Connection Compartment (Adapter Ring Removed for Clarity)

PRESS HERE TO

MOVE ACCESS HANDLE

SLIDE ACCESS HANDLE

TOWARD FRONT OF UNIT TO

EXPOSE ACCESS HOLE

ACCESS HOLE

MOUNTING STUDS

SHAFT CLAMP

SET SCREW

NOTE:

SET SCREW IS USED TO LOCK THE LEVER IN PLACE FOR OPERATION

Hazardous Area Classifications and Special Instructions for “Safe

Use” and Installation in Hazardous Locations

Refer to the DLC3020f Quick Start Guide (D103470X012) that ships with the instrument for Hazardous Area

Classifications and Special Instructions for “Safe Use” and Installations in Hazardous Locations. If a copy of this quick

start guide is needed contact your Emerson Process Management sales office or visit our website at www.Fisher.com.

Mounting

WARNING

To avoid personal injury or property damage, always wear protective gloves, clothing, and eyewear when performing any

installation operations.

Personal injury or property damage due to sudden release of pressure, contact with hazardous fluid, fire, or explosion can

be caused by puncturing, heating, or repairing a displacer that is retaining process pressure or fluid. This danger may not

be readily apparent when disassembling the sensor or removing the displacer. Before disassembling the sensor or

removing the displacer, observe the appropriate warnings provided in the sensor instruction manual.

Check with your process or safety engineer for any additional measures that must be taken to protect against process

media.

Mounting the 249 Sensor

The 249 sensor is mounted using one of two methods, depending on the specific type of sensor. If the sensor has a

caged displacer, it typically mounts on the side of the vessel as shown in figure 2‐3. If the sensor has a cageless

displacer, the sensor mounts on the side or top of the vessel as shown in figure 2‐4.