Industrial conductivity sensors function like diagnostic tools monitoring the health of production systems. Proper installation is critical—incorrect placement can compromise measurement accuracy or even cause production downtime. Following established installation guidelines ensures optimal sensor performance and reliable measurements.
Universal Installation Guidelines for LDL Sensor Series
These fundamental principles apply to all LDL series conductivity sensors and should be strictly observed.
1. Pipe Dimensions and Recommended Fittings
Selecting appropriate pipe sizes and compatible fittings forms the foundation for proper sensor operation. The following specifications detail recommended configurations:
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Pipe Size
|
LDL100
|
LDL200
|
LDL201
|
|
1"
|
E43306 F-type Varivent fitting
|
Not recommended
|
Not recommended
|
|
1-1/2"
|
E43310 welded fitting or E43307 N-type Varivent
|
-
|
-
|
|
2"
|
E30130 welded fitting or E33229 N-type Varivent
|
-
|
-
|
|
≥ 2-1/2"
|
E33208 (1-1/2") or E33209 (2") tri-clamp fittings
|
-
|
-
|
2. Installation Orientation
Vertical pipe installation with upward media flow is strongly recommended to ensure complete sensor immersion. For horizontal installations, maintain the sensor at no more than 45° from horizontal to prevent air bubble accumulation and ensure full media contact.
Top-mounted installations may be acceptable only when:
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The pipe system remains pressurized
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The pipe is completely filled with media
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No air bubbles are present
3. Straight Pipe Requirements
Maintain minimum straight pipe sections equivalent to five pipe diameters both upstream and downstream of the sensor to minimize measurement interference from elbows, valves, or pipe diameter changes.
LDL100 Series-Specific Considerations
These additional requirements apply exclusively to LDL100 series sensors.
Plastic Pipe Installations
Since LDL100 sensors require dual-electrode media contact, metal fittings like the E43313 (G1/2 BSPP x ¾” NPT) are recommended. This restriction doesn't apply to LDL200 series sensors designed for single-electrode measurement.
LDL2xx Series-Specific Considerations
These guidelines pertain specifically to LDL200 and LDL201 sensor models.
Measurement Channel Alignment
The sensor's measurement channel must align parallel with fluid flow direction. Laser-etched markings on the sensor body indicate proper orientation.
Tank Installations
Position the measurement channel vertically to prevent measurement interference from air bubbles or sediment accumulation.
LDL201 Series-Specific Considerations
These requirements apply only to LDL201 conductivity sensors.
Tri-Clamp Installation
The LDL201 is designed for tri-clamp fittings but requires sufficient clearance for its 76mm (3") insertion depth. When using standard short-body tri-clamp tees, minimum pipe size must be 2-1/2".
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