Hach-Lange SOLITAX sc - Manual (Page 11)

11
Installation
3.3 Pipe Installation
• Install the sensor in an up-flow pipe section for best results. Do not mount the sensor
in a down-flow pipe section.
• Mounting in a horizontal pipe section is acceptable if the sensor is fully immersed at all
times. Usually, mounting 90 degrees from the top of the pipe guarantees full
immersion. Do not mount on the top or bottom of a horizontal pipe section.
• Install the sensor in a pipe that is equal to or greater than 4 inches in diameter.
• Install the sensor at least 1.5 m (5 ft.) or three times the pipe diameter (whichever is
greater) downstream of pumps, valves, or pipe elbows.
• Install the sensor on the discharge side of a pump, if possible, with a dilution or flush
valve installed on the suction side of the pump.
• If the sensor is to be used to measure sludge with significant amounts of debris, install
it after a sludge grinding pump or after a pump with a grinding/comminuting unit in
front of it.
• Install the sensor within 7.8 m (25 ft.) of the controller with the standard probe cable.
Optional cable extensions can be added for a maximum combined distance of
100 meters (330 ft.).
• If the flange cannot be welded to the pipe due to incompatibility of materials between
the stud and the pipe, it is recommended that a stainless steel pipe section be
fabricated. Weld the flange onto the stainless steel pipe section and attach the
stainless steel section as a segment of the process pipe.