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MEASUREMENT SPECIFICATIONS reference condition: dielectric constant [
11
water surface, tank Ø1m, DN200 metal flange
Accuracy
Repeatability
Resolution
Probe type
Probe length [L]
Inactive area top [I1]
Inactive areas bottom [I2]
Measuring range [M]
Switching point [S]
12
MECHANICAL SPECIFICATIONS
Material exposed to
tank atmosphere
Housing materials
Housing rating
Cable entries
Connection thread [CT]
Weight
±3 mm
<2 mm
<1 mm
single rod Ø6 mm
coaxial Ø17,2 mm (standard tube: NPS
rope probe Ø4 mm or Ø6 mm
single rod probe: 100...3.000 mm
coaxial probe: 100...6.000 mm
rope probe: 1.000...20.000 mm
can be ordered in 1mm increments
the reference point is always the sealing surface of the connection thread (see
dimensional drawings)
single rod probe,
=80: 50 mm
r
coaxial probe,
=80: 30 mm
r
rope probe,
=80: 80 mm
r
single rod probe,
=80: 10 mm
r
coaxial probe,
=80: 10 mm
r
rope probe,
=80: 20 mm
r
probe length [L] less both inactive areas at top and bottom [I1 and I2]
in this range LTDR will have the specified measurement performance. It is
recommended that the maximum and minimum liquid levels to be measured in
the tank are actually within the measuring range [M] of the sensor (see figure
10)
freely positionable within the measuring range [M]
hysteresis can be set by defining separate upper and lower thresholds; if those
are set at the same position, the minimum hysteresis of 3 mm applies
single rod probe and rope probe: 1.4404 / 316L and PEEK
coaxial probe: 1.4404 / 316L, PEEK and o-ring seal: EPDM or FKM (Viton)
other o-ring materials on request
gasket at connection thread G3/4A: Klingersil C-4400, 2mm thick
housing body and cover: painted aluminium alloy (epoxy coated in the ATEX
version). Other materials on request
cover o-ring seal: NBR or silicone rubber. Other o-ring materials on request
IP68 10 m H
O, NEMA6P
2
device cover has to be properly tightened and IP68 screw plugs and cable
glands have to be properly mounted (with sealing) and have to be properly
tightened around cable of suitable type and diameter
2 cable entries M16x1.5
ATEX version: 2 cable entries M20x1.5
G¾A (wrench size 32mm)
housing, assembled with electronics and feedthrough: 1240 g
housing (empty): 940 g
ATEX housing, assembled with electronics and feedthrough: 950 g
ATEX housing (empty): 650 g
electronics: 70 g
feedthrough: 220 g
single rod probe, 1m: 230 g
complete coaxial probe, 1m: 770 g
set of parts for attaching coaxial tube: 130 g
", 10S)
longer length on request
single rod probe,
coaxial probe,
=2: 50 mm
r
rope probe,
=2: 80 mm
r
single rod probe,
coaxial probe,
=2: 50 mm
r
rope probe,
=2: 80 mm
r
other dimensions on request
other connection threads on request
coaxial tube (not assembled), 1m: 540 g
]=80,
r
=2: 80 mm
r
=2: 50 mm
r
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