19
57-606 ECLIPSE Model 706 Guided Wave Radar Transmitter
2.4.4.3 To install a flexible single rod probe for solids:
The Model 7y2 Single Flexible Bulk Solids probe is
designed for a 3000 lb. (1360 kg) pull-down force for use in
applications such as sand, plastic pellets and grains. It is
offered with a maximum 100 foot (30.5 meter) probe
length.
Model 7y2 Single Rod — dielectric ≥4 probe length depen-
dent.
Applications
• Salts: Dielectric constant 4.0–7.0
• Metallic powder, coal dust: Dielectric constant >7
NOTE: Contact the factory for those applications requiring additional
pull down forces such as cement, heavy gravel, etc.
Mounting recommendations
• To reduce forces, utilize the standard 5 lb. (2.3 kg) weight
at the bottom of the probe instead of securing the probe to
the vessel.
• Mount the probe at least 12 inches (30 cm) from the wall.
Ideal location is
1
⁄4 to
1
⁄6 the diameter to average the angle of
repose.
• A metal flange must be used when mounting on plastic
vessels.
1. Ensure the process connection is at least 2" NPT or a
flanged mounting.
2. Carefully place the probe into the vessel. Align the gasket
on flanged installations.
3. Align the probe process connection with the threaded or
flanged mounting on the vessel.
4. For threaded connections, tighten the hex nut of the probe
process connection. For flanged connections, tighten flange
bolts.
5. Probe can be shortened in field:
6. a. Loosen and remove the two cable clamps.
b. Slide the weight off of the probe.
c. Cut the cable to the required length plus 6.5 inches
(165 mm).
d. Slide the weight back on to the probe.
e. Reinstall the two cable clamps and tighten.
f. Enter the new probe length (in the appropriate level
units) into the transmitter.
Probe
Length
3" ± 1"
(75 mm ± 25 mm)
Model 7y2 Single Rod
Bulk Solids Probe