6
Installation
Installing the Sensor
The PT2X measures pressure. The most common application is measuring liquid levels
in wells and tanks. In order to do this, the sensor must be installed below the water
level at a fixed depth. The installation depth depends on the range of the sensor. One
(1) PSI is equal to approximately 2.31 feet of water. If you have a 5 PSI sensor, the
range is 11.55 feet of water and the sensor should not be installed at a depth below
11.55 feet. If the sensor is installed below its maximum range, damage may result to
the sensor and the output reading will not be correct.
Monitoring Wells
Lower the sensor to the desired depth. Fasten the cable to the well head using tie wraps
or a weather proof strain-relief system. When securing a vented cable, make sure not to
pinch the cable too tightly or the vent tube inside the cable jacket may be sealed off.
Take a measurement to insure the sensor is not installed below its maximum range.
Important Note:
If the sensor is to be left in the well for a long-term monitor-
ing application and the connector end is not in a dry, thermally-stable environ-
ment, a desiccant tube must be installed in line with the cable to prevent
condensation in the cable vent tube. Water in the vent tube will cause inaccu-
rate readings and, in time, will work its way into the sensor and damage it.
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7
Figure 3: Installation
