Transducer Installation; Floats, Installation - Balluff BTL5-A/C/E/G1-M-B/Z-DEX-K/KA Serie Manual De Instrucciones

BTL5-A/C/E/G1_-M_ _ _ _-B/Z-DEX_-K_ _/KA_ _
Micropulse Linear Transducer - Rod Style
3 Installation (cont.)

3.3.1 Transducer installation

The transducer is threaded directly
into its holder.
The installation surface of the
BTL housing must lie fully against
the mating surface. The appropri-
ate O-ring must seal the bore
hole perfectly, i.e. the chamfer for
the O-ring must be finished ac-
cording to ➥ ➥ ➥ ➥ ➥ Fig. 3-4.
Suitability of the installed O-ring
(Viton GFLT90) must be verified for
the specific application.
The depth of the threaded hole
must be at least 25 mm.
At least 5 threads must be en-
gaged and there must be a
thread overlap of at least 8 mm.
Zone 1
dividing area
Zone 0
aaaaaaaaaaaa
Stop,
1.4301
Cotter pin
DIN 94 – 3.2 × 20 – 1.4301
➥ ➥ ➥ ➥ ➥ installation note!
Fig. 3-6: Direct transducer installa-
tion

3.3.2 Floats, installation

Only the floats called out here may
be used for level sensing in Zone 0.
➥ ➥ ➥ ➥ ➥ Figs. 3-7 to 3-10.
Each float is designed so that it
makes electrical contact with the
transducer rod in any orientation.
Therefore:
Observe the prescribed
installation orientation
exactly!
The immersion depths s
for a liquid density of 1 g/cm
well as for a density of 0,7 g/cm
➥ ➥ ➥ ➥ ➥ Table 3-1.
In order to measure the position of
the separating layer between two
fluids, e.g. oil and condensed water,
a second float can be employed.
Suitale: BTL2-S-4414-4Z01-Ex.
Installation orientation:
Cylindrical part is top side of float
Fig. 3-7: BTL2-S-6216-8P-Ex
Float in Zone 0 (optional)
Immersion
depth s
s
of float
➥ ➥ ➥ ➥ ➥ Table 3-1
Float Type
BTL2-S-6216-8P-Ex
BTL2-S-5113-4K-Ex
BTL2-S-4414-4Z-Ex
BTL2-S-4414-4Z01-Ex
Table 3-1: Immersion depths s
Flameproof enclosure
Installation
orientation:
Raised mark-
ing on top
side of float
Fig. 3-8: BTL2-S-5113-4K-Ex Float
in Zone 0 (optional)
are given
s
3 as
3 .
Installation
orientation:
Raised mark-
ing on top
side of float
Fig. 3-9: BTL2-S-4414-4Z-Ex Float
in Zone 0 (optional)
Installation
orientation:
2 raised mark-
ings on top
side of float
Fig. 3-10: BTL2-S-4414-4Z01-Ex
Special float in Zone 0 (optional)
min. density 1 g/cm
0.6 g/cm 3 s ~ 41 mm
s
0.7 g/cm 3 s ~ 26 mm
s
3
0.7 g/cm s ~ 30 mm
s
3
0.85 g/cm * s ~ 45 mm
s
* Density of the float
s
Ignition Class "d"
3 (H O) 0.7 g/cm 3
2
s ~ 57 mm
s
s ~ 40 mm
s
s ~ 39 mm
s
sinks
english
7