Siemens 7MB1420, Instruction Manual, Page: 58 / 74

Temperatures, pressures, flow, limits
D
D
The entered pressure deviation, usually 50 to
100 mbar, specifies the maximum permissible
deviation from the setpoint which has been set
using function 36.
A warning is output if the sample gas pressure
exceeds or falls below this value.
Factory setting: 50
* 38 Enter tolerance for sample gas pressure
3
Pressure
deviation in
mbar 0 - 255
CL
8
The sample gas pressure is output on the dis-
play in mbar and can be adjusted using the
bottom screw on the front panel. The technical
data refer to an overpressure of 500 mbar.
* 36 Display, set sample gas pressure
Display 6 3
The hydrogen pressure is output on the display
in mbar and can be adjusted using the top screw
on the front panel. The technical data refer to an
overpressure of 1000 mbar. * 35 Display, set H
2
pressure
Display 5 3
This function defines how far the temperatures
of the oven, pump, heated sample gas line and
sample gas probe may deviate upwards or
downwards from the setpoint temperature. A
warning is output if the temperature deviates by
more than this value for one of the four heaters.
Factory setting: 5
** 34 Display, set max. temperature deviation
3
Temperature
deviation in ˚C
2 to 10
CL
4
The entered pressure deviation, usually 50 to
100 mbar, specifies the maximum permissible
deviation from the setpoint which has been set
using function 35.
A warning is output if the hydrogen pressure
exceeds or falls below this value.
Factory setting: 50
* 37 Enter tolerance for hydrogen pressure
3
Pressure
deviation in
mbar 0 - 255
CL
7
A-22