Emerson Combination pH/ORP Sensor User Manual

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MODEL 399VP pH/ORP SENSOR
SECTION 2.0
INSTALLATION
2.4 INSERTION INSTALLATIONS. 
The Model 399VP sensor has forward and rear facing 1 in. MNPT process connections for pipeline installations
(see Figure 2-4 or 2-5) and flange connections. The Model 399VP is also suitable for side-of-tank installation. The
Model 399VP must be mounted at least 10° above the horizontal (see Figure 2-4).
NOTE
Large pipe wrenches must not be used to tighten the sensor into a flange or other type of mounting.
FIGURE 2-4. MODEL 399VP SHOWN IN VARIOUS INSERTION INSTALLATIONS
Model 399VP can be mounted using front or back threads to install
sensor with flange into process.  Flange is supplied by others.
FIGURE 2-3. MODEL 399VP SHOWN IN LOW FLOW CELL ASSEMBLY (PN 23728-00)
The see-through flow cell is
perfect for processes where
flow regulation is desired.
Tubing (1/4 inch) is needed for
connection to the process or
sample stream.