Manual

3. CONNECTION TO PRESSURE SOURCES

The C9500 Series instruments are tted with

" BSP female connectors. The following checks

must be made before connecting the instrument to

a pressure source:-

Check the security of all ttings.

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

gure with respect to atmospheric pressure, should

not be applied to either port as this could damage the

instrument or represent a safety hazard.

TABLE 1

Instrument Pressure Range Maximum Over/

Under Pressure

C9551 0 to ±2 PSI/140mbar 6 PSI/400mbar

C9553 0 to ±5 PSI/350mbar 15 PSI/1000mbar

C9555 0 to ±30 PSI/2000mbar 90 PSI/6200mbar

C9557 0 to ±100 PSI/6900mbar 200 PSI/13700mbar