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Traction load is depending on the height and shape of the tank, medium
particle size & density, and the rate at which the tank is emptied. The
following chart provides the tensile load values true for the different
material.
Probe type
Material
Probe Length
6 m
(20 ft)
12 m
(40 ft)
24 m
(80 ft)
Mono cable Ø8 mm (Ø0.31 inch), max.
load: 3.0 T
Cement
0.6 T
1.2 T
2.4 T
Fly ash
0.3 T
0.6 T
1.2 T
Medium build-up may occur under the nozzle: this may weaken the pulse.
Avoid cavities that permit the build-up of deposits.
Tank roofs should support loads of at least 3 T for gauge installations using Ø8 mm (Ø 0.31 inch) single cable probes.
4.3.
W
IRING
Wiring in non-Ex environment
1 2 3 4 5 6
1 2 3 4 5 6
HTK-402-4M-200-00
4…20 mA
I- I+
mV
Test
10 mV 1 mA
1.
Detach the cover of the unit
2.
Guide the cable into the housing through the cable gland
3.
Remove the insulation from the wire in 4 mm (0.16 inch) length and cut away the free part
of the shielding.
4.
Connect the wires of the current loop to terminals 2 and 3 (any polarity).
Pull back the cable, so that 10 mm (0.4 inch) of it would remain in the cable gland. Tighten
the cable gland using two wrenches.
Check if the cable gland is adequately tightened and the connection of the wires is proper.
5.
Arrange the wires in the housing and screw the cover on the housing.
The 500 V AC insulation test should not be performed on the instrument because of the
overvoltage protection of the electronics.