Angol nyelvű ismertető az SD 087,088,089 term kekhez

Angol nyelvű ismertető az SD 087,088,089 term kekhez
SD - 087 / 088 / 089 DATA SHEET
SD - 087 / 088 / 089
Chemically Resistant Displacement Sensors
Measuring displacement 3.5 mm
1
Application
The displacement sensoer is part of the Brüel & Kjær Vibro
displacement measuring chain, comprising:
−
Non-contacting displacement sensor
−
Extension cable
−
Oscillator
The displacement measuring chain serves for non-contacting displacement
measurement according to the eddy-current measuring principle.
2
Employment range
The sensor is chemically resistant up to the olive screw joint (SD-087),
counternut (SD-088) or O-ring seal (SD-089) according to the table page 4
on condition that the mounting instructions given on page 5 - 7 have been
followed.
The sensor was subjected to different endurance tests in which the
resistance to different media was tested under the influence of pressure and
temperature.
For measuring results please refer to the table page 4.
The vibration sensor may be used in hazardous areas applications when
used in conjunction with a compatible oscillator type OD-081 and a corresponding protective circuit (Zener Barrier).
(See data sheet of oscillator type OD-081).
© SD08789E 21.06.02
Brüel & Kjaer Vibro
Tel. : +49 (0)6151 428-1400
Leydheckerstr. 10
Fax : +49 (0) 6151 428-1401
Page 1 of 8
D-64293 Darmstadt
E-Mail : info@bkvibro.de
SD - 087 / 088 / 089 DATA SHEET
2.1
Dimensioned drawing SD-087
chem. resistant
ø9,5
SW 12
ø10
ø3,65
ø7,1
ø11
ø12,5
M 14x1
not chem. resistant
15
L1
4
26
21
L3
K
SDB12 (980527)
2.1.1
Variable dimensions
Sensor length L1
40 mm ... max. 250 mm
Sensor incl. annularly
corrugated SST hose L3
L1 + 80 ≤ L3 ≤ K - 250
0.5 m ± 0.1 m
1.0 m ± 0.2 m
Total length K
2.2
Dimensioned drawing SD-088
chem. resistant
not chem. resistant
ø7,1
ø3,65
ø11
ø12,5
M 14x1 SW 12
15
4
21
L1
K
SDB11 E (950411)
2.2.1
Page 2 of 8
Variable dimensions
Sensor length L1
40 mm ... max. 250 mm
Total length K
0.5 m ± 0.1 m ... + 0.3 m
1.0 m ± 0.2 m
© SD08789E 21.06.02
SD - 087 / 088 / 089 DATA SHEET
2.3
Dimensioned drawing SD-089
not chem. resistant
chem. resistant
SW 19
M 14x1
ø 7,1
ø 11
ø 12,5
ø 3,65
15
5
20
4
21
40
K
SDB13 (950419)
2.3.1
3
Variable dimensions
Sensor length L1
40 mm ... max. 250 mm
Total length K
0.5 m ± 0.1 m
1.0 m ± 0.2 m
Technical data
© SD08789E 21.06.02
Standards and directives
API 670 and DIN 45670
Measured variable
shaft relative vibration
shaft relative displacement
Measuring principle
eddy-current principle
Working frequency range
0 ... 10 000 Hz
Displacement measuring range
0.2 ... 3.7 mm
Recommended working range
1.8 ... 2.4 mm correspond to a
Gap voltage of -8 ... -10 V
Material of transducer tip
ceramics
Material of sensor sleeve
Material according to DIN 671
Material no. 1.4301
Material of annularly
corrugated SST hose (only SD-087)
Material according to DIN 671
Material no. 1.4541
Material of the clamping piece
(only SD-087)
Material according to DIN 671
Material no 1.4301
Material of sensor cable
coaxial cable PTFE-insulated
according to
MIL-C-17 / 95-RG 180 B/U
Page 3 of 8
SD - 087 / 088 / 089 DATA SHEET
Working temperature range
-30 °C ... + 100 °C
Storage temperature range
-30 °C ... + 100 °C
Weight of sensor
200 g (SD-088)
65 g (SD-089)
50 g (SD-087)
Sensor suitable for oscillator
type OD - 081
EMC
EMC-relevant data for the entire measuring chain consisting of displacement
sensor fitting oscillator OD-... and extension cable EC-... are given in the data
sheets of the oscillator.
Note:
The housing of sensor is potential free.
Sensor types
4
new
old
SD-087
SDM-082
SD-088
SDN-082
SD-089
SDN-083
Test results
Aggresive medium
Water, destilled (liquid)
Tap water (vapour)
Air humidity 100 %
See water, synthetic
3
(Density = 1.024 g/cm )
NH3/N2 - mixture (gas)
32 % NH4OH - solution
(liquid) 1
NH3/H2O/air
(gas mixture)
CCl2F2 (freon, vapour)
Average values (in ( ): Duration
maximum values)
(approx.
temp. °C pressure bar
h)
66 (126)
130
40 ( 60)
66
1.9
1
500 *)
400 *)
2400
Notes
40 bar prepressure N2
92
54
300 *)
Humidity test as per
DIN IEC 68
(2 x test cycle)
40 bar prepressure N2
60 (100)
25
29
30
1100 *)
150 *)
25 bar prepressure N2
30 bar prepressure N2
1200
Bonding joints lightly
affected but tight.
89
4
65
7.7
350 *)
* ): The sensors passed this test successively. Total time: approx. 2800 hours.
Page 4 of 8
© SD08789E 21.06.02
SD - 087 / 088 / 089 DATA SHEET
5
Mounting Instructions
The sensor must be installed according to the „Installation instructions for
displacement measuring chains".
Sensors for non-contacting displacement measurement are preferrably to be
fastened to such machine parts which do not falsify the measuring result by
natural frequencies.
5.1
5.1.1
Precondition for media-resistant installation of sensors
SD-087 and SD-088
♦
If possible, leave the protective cover on the sensor tip until
commissioning. The sensor tip is sensitive to impact, it might be
destroyed by bumping against a hard surface.
♦
The thread of the sensor tip is sealed with a chemically resistant
compound.
Installation of sensor type SD-087
aggresive
medium
ventilated room
free from aggresive
medium
Cutting ring point (stainless steel)
(provided by the customer,
e.g. from Fa. Ermeto)
Sensor
fastened with
counternut
Minimum bending radius
on fixed installation
r = 30 mm
Thread sealed
with media-resistant
sealing compound
(provided by the customer)
Thread sealed with media-resistant sealing compound
(provided by the customer)
SD-087
© SD08789E 21.06.02
SDB44 (970919)
Page 5 of 8
SD - 087 / 088 / 089 DATA SHEET
5.1.2
Installation of sensor type SD-088
aggresive
medium
ventilated room
free from aggresive medium
Sensor fastened with counternut
SD-088
Thread sealed with media-resistant sealing compound
(provided by the customer)
Tap hole does not permit sealing
5.2
Page 6 of 8
SDB31 (980527)
Precondition for media-resistant installation of sensor
SD-089
♦
The O-ring is inserted.
♦
If possible, leave the protective cover on the sensor tip until
commissioning. The sensor tip is sensitive to impact, it might be
destroyed by bumping against a hard surface.
♦
The thread of the sensor tip is sealed with a chemically resistant
compound.
♦
The indicated manufacturing tolerances are met.
© SD08789E 21.06.02
SD - 087 / 088 / 089 DATA SHEET
5.2.1
Mounting with sensor holder for SD-089
aggresive
medium
ventilated room
free from aggresive medium
Thread sealed with mediaresistant sealing compound
(provided by the customer)
SD-089
O-ring
SDB41 (970922)
5.2.2
Mounting into the machine for SD-089
chem. resistant
not chem. resistant
M 14x1
Sealed with chemically resistant compound
SW 19
ø 7,1
ø 11
ø 12,5
ø 3,65
12
Detail "A"
5
20
4
21
L1
K
O-ring seal inserted
Detail "A"
© SD08789E 21.06.02
M4x1
ø 18,5
1,3
± 0,1
SDB41a E (950419)
Page 7 of 8
SD - 087 / 088 / 089 DATA SHEET
5.3
Free space and minimum distances for non-contacting
displacement sensors
*
ø35
Non-contacting displacement sensors produce a high-frequency electromagnetic field. If any electrically conductive material apart from the
measuring object is within this field, the measuring result will be falsified.
Therefore, the following free space and minimum distances must be adhered
to during installation of the non-contacting displacement sensors:
14
14
Probe tip flush
14
14
Probe tip projecting
*r
(max) 3,5
14
Distance to shaft shoulder
Distance to shaft shoulder
Sensor parallel to electrically conducting material
ø
6
5
ø
4
0
Distance to shaft end
> 100 % coverage
14
65
Sensors mounted parallel
Required minimum diameter of shaft
SD-08x (970214)
If minimum free spaces and distances cannot be realized by machine design, please
contact the manufacturer.
Page 8 of 8
© SD08789E 21.06.02
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