Siemens SITRANS FSS200 Installation Manual page 41

①
②
③
Figure 4-10
Grace ice and water shield damping material
An alternate pipe damping material referred to as "Grace Ice and Water Shield" can be
considered for use with clamp-on gas systems. This opaque material has a black tar like
appearance with a very tenacious adhesive backing. Its lower operating temperature range
and difficult removal from the pipe must be considered before installing this alternate
material. Refer to the web site (www.graceconstruction.com) for a local distributors of this
roofing underlayment material.
The installation and sizing of the Grace material is identical to that of Siemens damping
material. Refer to table below for the recommended number in layers for each sensor size.
(Operating / Installation temperature ranges can be found just below table.)
Table 4- 2
Operating temperature range: -23 °C to 65°C (-10 °F to 150 °F)
Installation temperature: 0 °C to 50 °C (32 °F to 120 °F)
FSS200 clamp-on sensors
Installation Manual, 08/2017, A5E36255466-AC
Recommended sensor placement for Dual Beam Reflect mount
Sensor located at 3 o'clock
Sensor located at 9 o'clock
End view (Horizontal plane)
Grace ice and water sheild damping material thickness for clamp-on gas systems
Sensor size Required layers of
B1H
B2H
B3H
C1H
C2H
D1H
D2H
D3H
D4H
Final Thickness (in)
Grace
1
1
1
1
1
1
2
1
3
Installing/mounting
4.6 Installation instructions
Final Thickness (mm)
0.038
0.038
0.038
0.038
0.038
0.038
0.076
0.038
0.114
0.97
0.97
0.97
0.97
0.97
0.97
2.93
0.97
2.90
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