700-SDI-PT-KEL-Man Rev 4 06 Jan 2020
4/19
INSTALLATION
2.1
PRIOR TO INSTALLATION
Prior to installing, inspect the SDI-PT-KEL and its cable for damage. The cable should not have any
kinks or cuts as these can render the vent tube useless. Ensure the humidity monitor card in the
vent enclosure box indicates low humidity levels. If not, replace the desiccant and card (see section
1.5.1)
2.2
HANDLING THE CABLE AND SENSOR
The sensor can fail if the cable is damaged so exercise care when handling the sensor and cable.
The cable can also be damaged by abrasion, sharp objects and rodents so ensure it is positioned
away from potential hazards and securely attached.
•
Do not touch or probe the pressure sensing membrane with anything. Damage to
the sensing membrane will require repair or replacement.
•
Do not twist, crimp or compress the cable as this can damage the pressure tube.
o
The cable should not be bent to a radius less than 1 inch.
o
If using a compression fitting to secure the cable as it enters a junction box, do not
over tighten the fitting
•
Do not drop the SDI-PT-KEL, allow it to strike a hard surface forcefully, or allow it to “free
fall” as this may damage the sensor.
•
Do not allow the cable to drag over sharp edges or be abraded.
•
Avoid contact with corrosive chemicals.
•
The sensor could be damaged if encased in frozen liquid.
If the sensor is suspended, to prevent cable strain and stretch, use split mesh cable grips. This is
especially important to relieve strain at the attachment point between the cable and the sensor.
Figure 2-1: Split Mesh Cable Grip Example
Attach the strop to a
hard point to relieve
strain.
