705-5100-F21 datasheet(17/52 Pages) MAGNETROL

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57-645 Eclipse Guided Wave Radar Transmitter - PROFIBUS PA™

z Align the probe process connection with the threaded or

flanged mounting on the vessel.

{ For threaded connections, tighten the hex nut of the probe

process connection. For flanged connections, tighten flange

bolts.

| Probe can be shortened in field:

a. Raise TFE weight (1) exposing securing device (2).

b. Loosen both #10–32 set screws (3) using 3⁄32" (2.5 mm)

hex wrench and remove securing device.

c. Cut and remove needed cable (4) length.

d. Reattach securing device and tighten screws.

e. Enter new probe length (inches or cm) in software.

} Probe can be attached to the tank bottom using the

0.50" (13 mm)

∅ hole provided in theTFE weight.

Cable tension should not exceed 20 lbs.

3.4.4 Installation Guidelines

Models 7x2/7x5 Bulk Solids Probes

The Model 7x2 and 7x5 Bulk Solids probes are 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 75 foot (22 meter) probe length.

Model 7x2 Single Rod — dielectric

≥4

Model 7x5 Twin Rod — dielectric

≥1.9

NOTE: Avoid cement, heavy gravel, etc.

3.4.4.1 Applications

1. Plastic pellets, sugar: Dielectric constant 1.9-2.0

2. Grain, seeds, sand:

Dielectric constant 2.0-3.0

3. Salts: Dielectric constant 4.0-7.0

4. Metallic powder, coal dust:

Dielectric constant >7

3.4.4.2 Mounting recommendations

1. Use a weight instead of securing the probe to the vessel.

2. Mount probe at least 12 inches from the wall. Ideal

location is 1⁄4 to 1⁄6 the diameter to average the angle

of repose.

3. A metal flange must be used when mounting on plastic

vessels.

3.4.4.3 To install a Model 7x5 bulk solids flexible twin rod

probe:

x Make sure the process connection is at least 2" NPT or a

flanged mounting.

0.50" (13 mm) Ø

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