Deltabar S PMD70/75 FMD76/77/78
Deltabar S, PMD70, PMD75, FMD76, FMD77, FMD78 - from AoteWell
Deltabar S, PMD70, PMD75, FMD76, FMD77, FMD78 - from AoteWell
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<strong>Deltabar</strong> S<br />
Diaphragm seal filling oils<br />
Version 1 Filling oil Permissible<br />
temperature range at<br />
0.05 bar(0.725 psi) <br />
p abs 1 bar (14.5 psi)<br />
Permissible<br />
temperature range at<br />
p abs 1 bar (14.5 psi)<br />
Density Viscosity Coefficient<br />
of thermal<br />
expansion<br />
Notes<br />
[g/cm 3 ] /<br />
[SGU]<br />
[mm²/s] / [cSt] at<br />
25 °C (<strong>77</strong> °F)]<br />
[1/K]<br />
FMD<strong>77</strong>: A<br />
FMD<strong>78</strong>: A, 1<br />
Silicone oil<br />
–40 to +180°C<br />
(-40 to +356 °F)<br />
–40 to +250°C<br />
(-40 to +482 °F)<br />
0.96 100 0.00096 Suitable for foods<br />
FDA 21 CFR 1<strong>75</strong>.105<br />
FMD<strong>77</strong>: V<br />
FMD<strong>78</strong>: C, 3<br />
Hightemperature<br />
oil<br />
–10 to +200°C<br />
(+14 to +392 °F)<br />
–10 to +400°C<br />
(+14 to <strong>75</strong>2 °F)<br />
1.07 37 0.0007 High temperatures<br />
FMD<strong>77</strong>: F<br />
FMD<strong>78</strong>: D, 4<br />
Inert oil<br />
–40 to +80°C<br />
(-40 to +176 °F))<br />
–40 to +1<strong>75</strong>°C<br />
(-40 to +347 °F)<br />
1.87 27 0.000876 Oil for ultrapure gas<br />
and oxygen<br />
applications<br />
FMD<strong>77</strong>: D<br />
FMD<strong>78</strong>: B, 2<br />
Vegetable oil<br />
–10 to +120°C<br />
(+14 to +248 °F)<br />
(+14 to +392 °F) 0.94 9.5 0.00101 Suitable for foods<br />
FDA 21 CFR 172.856<br />
FMD<strong>77</strong>: L<br />
FMD<strong>78</strong>: E, 5<br />
Lowtemperature<br />
oil<br />
–70 to +80°C 2<br />
(-94 to +176 °F)<br />
–70 to +180°C2<br />
(-94 to +356 °F)<br />
0.92 4.4 0.00108 Low temperatures<br />
1) Version for feature 90 in the order code<br />
2) Observe temperature limits of the device ( ä 29) and the system ( ä 62).<br />
Operating temperature range<br />
Response time<br />
The operating temperature range of a diaphragm seal system depends on the fill fluid, capillary length and<br />
internal diameter, process temperature and oil volume of the diaphragm seal.<br />
The range of application can be extended by using a fill fluid with a smaller expansion coefficient and a shorter<br />
capillary.<br />
The viscosity of the filling oil, the capillary length and the capillary internal diameter influence the frictional<br />
resistance. The greater the frictional resistance, the longer the response time.<br />
Furthermore, the volume change of the measuring cell influences the response time. The lower the volume<br />
change of the measuring cell, the less filling oil has to be shifted in the diaphragm seal system.<br />
The following diagram shows typical response times (T90) for the various filling oils dependent on the<br />
measuring cell and the capillary internal diameter. The values given are in seconds per meter of capillary length<br />
and must be multiplied by the actual length of the capillary. The response time of the transmitter must also be<br />
taken into consideration.<br />
8<br />
Ambient temperature range = 20°C<br />
Response time (T90) [sec/m]<br />
6<br />
4<br />
2<br />
0<br />
DN 50 DN 80 DN 50 DN 80<br />
(1 mm) (2 mm) (1 mm) (2 mm)<br />
Silicone oil<br />
High temperature oil<br />
Vegetable oil<br />
Inert oil<br />
Nominal diameter<br />
Capillary internal diameter<br />
500 mbar<br />
3 bar<br />
Measuring cell<br />
P01-FMD<strong>78</strong>xxx-05-xx-xx-en-000<br />
64 Endress+Hauser<br />
AoteWell International.inc sales@aotewell.com Tel: +852-6563-2160
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