gefran 85180 - 02/03 Manual De Uso Y Mantenimiento página 7

Transductores / transmisores de presión para aplicaciones con temperaturas elevadas
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Cleaning the transducer housing
Cleaning tool
As mentioned in the notes, the
housing must be cleaned before the
transducer can be installed.
The cleaning tool is a hard metal
cutting tool specially designed to
remove residues of previous work
materials.
Recommended procedure
The procedure must be conducted
with the material in fluid state.
1) Insert the tool in the housing and
screw down the cutting rod (normally
a 1/4 turn at a time).
2) Turn the pilot cutter clockwise until
there is no resistance to cutting.
3) Repeat the procedure until the
housing is completely clean.
MECHANICAL DIMENSIONS OF TRANSDUCER / DRILLING
ORDER CODE FOR TOOLS AND ACCESSORIES
BRACKET
CLOSING ROD
Threading
1/2-20UNF
M18x1,5
Note:
Tools and accessories for other types of
threading are available on request.
GEFRAN spa reserves the right to make aesthetic and/or functional changes at any time and without notice.
For
constructive
maximum torque applicable to the
cutter is 5 Nm (1.5 Kgm).
If the hole blockage requires higher
torque for removal, use the drilling kit
and
follow
the
procedure.
The cleaning tool is available in the
following versions:
CT12 1/2-20UNF housing
CT18 M18x1,5 housing
D1
1/2-20UNF
D2
.313 ±.001"
[7.95 ±.03mm]
D3
.454 ±.004"
[11.53 ±.10mm]
D4
.515"
A
.225"
B
.17"
C
.75"
SF 18
SC
12
18
7
reasons,
the
Calibration instructions
Calibration procedure
Bring the system to work temperature
with the transducer installed and
connected to the measurement
instrument without any pressure
applied.
The measurement chain connected to
the transducer is calibrated as follows:
1) Reset the indication on the
instrument to reset the temperature
variation zero shift.
2) Calibrate the instrument and have it
display the calibration value shown on
recommended
the transducer data plate (80% of full
scale).
3) If the instrument does not exactly
indicate zero, repeat points 1 and 2.
In this way, the instrument is
calibrated to give the exact indication
in the chosen engineering unit.
M10x1.0
.241 ±.001"
[6.12 ±.03mm]
.344 ±.004"
[8.74 ±.10mm]
.515"
[13mm]
[13mm]
minimum
minimum
.263"
[5.72mm]
[6.68mm]
minimum
minimum
.11"
]
[4.3mm]
[2.8mm
maximum
maximum
.75"
[19mm]
[19mm]
DRILLING KIT
Threading
1/2-20UNF
M18x1,5
CLEANING TOOL
Threading
1/2-20UNF
M18x1,5
M14x1.5
M18x1.5
.319 ±.001"
.398 ±.001"
[8.10 ±.03mm]
[10.10 ±.03mm]
.478 ±.004"
.634 ±.004"
[12.14 ±.10mm]
[16.10 ±.10mm]
.630"
.790"
[16mm]
[20mm]
minimum
minimum
.240"
.240"
[6.10mm]
[6.10mm]
minimum
minimum
.16"
.16"
[4.0mm]
[4.0mm]
maximum
maximum
.75"
.99"
[19mm]
[25mm]
D1
1/2-20UNF
D2
.307/.305"
[7.80/7.75mm]
D3
.414/.412"
[10.52/10.46mm]
A
.125/.120"
[3.18/3.05mm]
B
.318/.312"
[8.08/7.92mm]
C
.81"
[20.6mm]
KF
12
18
CT
12
18

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