3 .
CONNECTION TO PRESSURE SOURCES
TABLE 1
Instrument
C9551
C9553
C9555
C9557
10
The C9500 Series instruments are fitted with
/
" BSP female connectors. The following checks
1
8
must be made before connecting the instrument to
a pressure source:-
Check the security of all fittings.
Check that the pressure source does not exceed the
ratings for the instrument as set out in Table 1.
Check that the gases to be measured will not damage
or corrode stainless steel, brass, glass, ceramic, silicon,
nickel, aluminium, gold or epoxy resin.
Note: Comark C9500 Series Pressure Measurement
Instruments are not suitable for absolute pressure
measurement.
Note: Pressures in excess of maximum over range
figure with respect to atmospheric pressure, should
not be applied to either port as this could damage the
instrument or represent a safety hazard.
Pressure Range
0 to ±2 PSI/140mbar
0 to ±5 PSI/350mbar
0 to ±30 PSI/2000mbar
0 to ±100 PSI/6900mbar 200 PSI/13700mbar
Maximum Over/
Under Pressure
6 PSI/400mbar
15 PSI/1000mbar
90 PSI/6200mbar